Legacy Communication

Ever since the launch of the Nippon Telegraph and Telephone Public Corporation in 1952, NTT has created a variety of technologies and proposed new ways of using these in response to the demands of the times. Here we present the history of communications evolution up until the present day together with the role of communications in Japan’s history and the Olympic and Paralympic Games.


Image: Painting depicting the atmosphere at the time of the arrival of the Perry Expedition in Japan.


Invention of the Morse Telegraph

  In 1832, young American painter and inventor Samuel Finley Breese Morse hit upon the idea of a telegraph using electromagnets while traveling by ship from France to America. He continued his research after arriving home and conducted a successful public demonstration of his transceiver in 1838, after which his invention spread throughout the world. In 1851, there were more than 50 telegraph companies in America using Morse’s patent.

1832年の出来事をもっと読む READ MORE

This telegraph arrived in Japan in 1855. The device was first demonstrated in front of Dutch scholars by Commodore Matthew C. Perry, leader of the Perry Expedition (a diplomatic and military mission to Japan that led to the country ending its long period of isolation). Following the demonstration, the telegraph was presented to the Japanese Shogunate. That same year, the Shogunate also received a telegraph from the Netherlands, and Count Katsu Kaishu was the first person in Japan to attempt communication using these devices. During the Tokugawa Period (1603-1868), research did not progress to a significant extent, but the Meiji Restoration government placed importance on the telegraph. In 1869, British telegraph engineers were invited to Japan, and Japan’s first telegraph circuits were opened at the Yokohama Lighthouse Government Office and Yokohama Courthouse. This was the beginning of the telegraph’s establishment in Japan.

Photograph: PPA/Aflo

epoch-making 1832

Image: Morse telegraph The Morse Telegraph
This telegraph used the dot-dot-dash Morse code. In Japan, which was just discovering the telegraph as the country began Westernizing, the first telegraphs built (in1869) were Breguet-style dial telegraphs. Since there was no need to remember characters or symbols, dial telegraphs could be used by anyone. Another reason why Japan adopted the dial telegraph was that it cost less than the communication-line Morse telegraph to construct.
Photograph: NTT
Sakuma Shozan constructs Japan’s first telegraph using Western books for reference.
Arrival of Commodore Perry
First year of the Meiji period
Great Kanto Earthquake
The prototype rotary dial telephone is born.
End of the Pacific War


Image: Photograph of a No. 23 automatic wall telephone.


Birth of the No. 23 Automatic Wall Telephone

  In 1849, Sakuma Shozan, a samurai from the Matsushiro domain in Shinshu (current-day Nagano Prefecture), constructed Japan’s first telegraph using Western books for reference. Five years later, when Perry revisited Japan, the Japanese Shogunate was presented with telegraph sets. From this point onwards, Japan’s telegraph and telephone history began in earnest and developed at an astonishing rate. Until the middle of the 20th century, development progressed through a fusion of developed-country technology and technology developed independently in Japan, and the prototype for the familiar rotary dial telephone had already been born by 1933.

1953年の出来事をもっと読む READ MORE

Subsequently, functionality and design were enhanced using independent technology exceeding world standards, and by 1939 the number of subscriber telephones nationwide had reached 1 million. Around World War II, the number of telephone subscribers dropped to around 540,000, but the postwar period saw accelerated technological innovation once again, and landline telephones spread.
 The No. 23 Automatic Wall Telephone was born in 1953. Although enabling users to call and talk with others simply by turning the dial, without having to go through an operator, conventional automatic telephones had poor transmission characteristics; however, quality was dramatically improved with the No. 23 model.
 That same year, mechanization of the telegraph relaying process was realized (at the Mito Telegraph Office) for the first time in Japan, and red-colored public telephones were introduced. These red telephones were installed at 15 locations, including kiosks on the Yokosuka Line platforms and the Yaesu Entrance/Exit of Tokyo Station, their vivid color making their presence known to many people. The year 1953 was also the year in which NHK, NTV, and other television broadcasting services began. With the Nippon Telegraph and Telephone Public Corporation (now NTT) launched the previous year under the motto of “field-orientated services,” expanding telegraph and telephone services with private-sector funding became possible. The 1950s were truly an era in which huge leaps forward were achieved in the telecommunications and wireless telegraphy fields.

Photograph: exhibit at the NTT History Center of Technologies

epoch-making 1953

Image: Delville magnet wall telephone Delville magnetic wall telephones
Automatic wall telephones that did not require calls to be connected by an operator first appeared in Japan in 1926 during the reconstruction following the Great Kanto Earthquake, at the Kyobashi Office in Tokyo. However, transmission characteristics were poor and parts were old, and so there was a major upgrading of transmitters and circuits in 1953. From around 1959, these telephones were gradually eased out of service. The photograph shows a person speaking on a Delville magnetic wall telephone, which was introduced in 1896.
Photograph: NTT
Completion of Tokyo Tower

epoch-making 1962

600 model automatic table telephone. 600 model automatic desk telephone
Introduced in 1962, the 600 model automatic table telephone was said to be the perfect telephone in terms of transmission performance and cost. Gaining popularity in many households as so-called “kurodenwa (black telephone)” because of its excellent communication functionality, this model became the most common communication tool in those days.


Image: Photograph of the Japanese national team entering the stadium at the Tokyo 1964 Summer Olympic Games.


Using telephone lines for data transmission was first tested at the Olympic Games Tokyo 1964

  The very first Olympic Games held in Asia were the Olympic Games Tokyo 1964. Live broadcasts were made for the first time in Japan with communications satellites providing simultaneous broadcasts in color. This is a noteworthy moment in the history of international communications development, and is the reason why the Olympic Games Tokyo 1964 were known as a festival of science bringing together the essence of electronics.

1964年の出来事をもっと読む READ MORE

A submarine coaxial cable system was opened between Japan and the United States four months before the Olympics Opening Ceremony so that audio from the Games could be transmitted internationally. The commemorative telephone conversation exchanged between US President Lyndon Baines Johnson and Japanese Prime Minister Hayato Ikeda conducted on that day had high sensitivity on par with a local call, free of static noise. This cable transmitted not only images distributed by communications satellite but also the vocal excitement of the “Celebration of the Century” instantaneously to all of the United States and Canada. (For Europe, images were sent via video.)
 Furthermore, the Nippon Telegraph and Telephone Public Corporation (now NTT) set up a service station in order to handle the demand for telephone call services at the National Stadium, progress management using computers, and gathering sporting event data.

 There were more than 6,000 communication facilities related to the Olympics—including for maintenance of telecommunications for news reporting and the Athletes’ Village—within the Tokyo Bureau of Telecommunications alone, with some 44,000 personnel directly involved in providing these services. In particular, the data transmission circuits used for gathering and recording sporting event data performed the role of demonstrating the advances in Japan’s technological capabilities to the world.

Photograph: Mainichi Shimbun /Aflo

Hikari Tokaido Shinkansen services begin
Japan’s total population exceeds 100 million
Image: Photograph of a “pocket bell” pager.


Pocket Bell (beeper) services commence

  The need for portable communications services for people on the go spread throughout the world, centered on the United States and Europe. The research on pocket bell (buzzer) (=wireless call service) began to meet the need to send the minimum information required to individual people, such as people working away from their office or car (since car phones already existed).

1968年の出来事をもっと読む READ MORE

Out of this research, “pagers” (“pocket bell” beepers) that notified people out of the home or office that someone wished to contact them wirelessly using just a push of the dial were born in the United States in 1958. The service was named the “Bellboy Service” after hotel bellhops. Four years later, “pocket bell” contractors were established in Japan, and pager services began in the 23 wards of Tokyo. Use of these devices spread mainly among sales representatives, who spent a large amount of time out of the office, and were also favored by young people. At its peak, the service had more than 6 million subscribers. Later, needs for this service diminished with the spread of mobile telephones, and it was suspended in 2007.

Photograph: exhibit at the NTT History Center of Technologies

epoch-making 1968

Image: Later model “pocket bell” pager. Later Pocket Bell (beeper)
Born in 1968, the original pocket bell (beeper) devices were an extremely useful communication tool of contacting salespeople who were out of the office, and their use diffused widely. Eventually, these devices also developed a role as a communication tool as young people used them for word play with numbers, and they are the basis for various mobile communication tools.
Photograph: exhibit at the NTT History Center of Technologies
All Tomei Expressway route services commence
Japan World Exposition (Osaka EXPO)


Image: Photograph of the venue for the Japan World Exposition, Osaka 1970 (Osaka EXPO), taken near the “Tower of the Sun”.


NTT is requested to install and operate all telecommunications facilities for Osaka EXPO

  Held in the Senrikyuryo of Osaka, the Japan World Exposition (the Osaka World Exposition) was the first major national undertaking for Japan since the Olympic Games Tokyo 1964.
Nippon Telegraph and Telephone Public Corporation (now NTT) was requested by the EXPO organizers to install and operate all necessary telecommunications facilities for the EXPO venue.

1970年の出来事をもっと読む READ MORE

For example, exhibit and event announcement systems, entry/exit information, venue congestion information, parking information, and lost-child/meeting-place announcement information systems were perfected with the use of data communications services, thereby contributing to the venue’s smooth operation. Moreover, new services were also implemented, including transmission routes for on-site television reporting and “pocket bell” beepers for use by the general public.
 In addition, Nippon Telegraph and Telephone Public Corporation (now NTT) also participated in the EXPO as an exhibitor, presenting the Telecommunications Pavilion under the theme “People and Communication” and attracting some 6.58 million visitors. Unique experiments such as a corner featuring a gigantic three-sided screen linking the pavilion with faraway locations in real time, enabling people to chat long-distance while simultaneously introducing the future form of telecommunications, and the pavilion drew enormous attention. In particular, the videotelephone and “wireless telephone”—referred to as the “telephone of dreams”—were hugely popular EXPO attractions. Images of visitors standing and sitting wherever they pleased, chatting away on “dream telephones”, were transmitted around the world, and together with videotelephones, “wireless telephones” became symbols of the EXPO theme of “Progress and Harmony for Mankind.”
 In this way, OSAKA EXPO—which was so dream-like, it was as if a futuristic city had suddenly appeared—was held on an unprecedented scale, with 77 participating countries and approx. 64.22 million visitors over six months, and was a resounding success.

Photograph: Courtesty of Osaka Prefecture

epoch-making 1970

Image: Wireless telephone Wireless telephones
The wireless telephones that debuted at the Osaka EXPO were the prototype for today’s cordless telephones. Since visitors could hold and experience these telephones, the exhibit was very popular with waiting lines of 100 or more people. This terminal led to the full development of car telephone services and mobile telephones, leading to the mobile telephone era of today.
Image: Photograph of the Japanese national team entering the stadium at the Sapporo 1972 Winter Olympic Games.


Holding of the Olympic Winter Games Sapporo 1972

  The Winter Olympics were also held in Asia for the first time in Japan, this time hosted by Sapporo. Again at the request of the Olympic Committee, NTT provided communication data services for the event. Scenes from the Games were relayed domestically and internationally using NTT circuits. The TV circuits were in operation from 4:00 a.m. early in the morning until 2:00 a.m. late at night—some 22 hours, which was far above the usual usage period of 16 hours. So there were no disruptions to coverage, domestic transmission paths were prepared with NTT operating communications services.

1972年の出来事をもっと読む READ MORE

Furthermore, the Olympics were the catalyst for “pocket bell” beeper services to be introduced in Hokkaido, the sixth city in Japan to do so. “Pocket bell” beepers (pagers) provided a means for notifying people who are out of the home or office that someone wishes to contact them using wireless signals. Initially the service had 700 subscribers, and 500 of the devices that belonged to these subscribers were used for the Olympics.
 Also in 1972, the number of telephone subscribers nationwide reached 20 million. The following year saw the launch of telephone facsimiles (fax) as well as push-button household and business telephones for purchase by the general public. In 1975, Japan National Railways (now JR) introduced a seat reservation service using push-button telephones.

Photograph: Shinichi Yamada/Aflo

epoch-making 1972

Image: Push-button telephone Push-button telephones
Launched in 1969, these telephones operated using a switch, with a specific frequency transmitted when each number button was pressed. As a new communication tool that could be connected to a computer, pushbutton phones diffused quickly. In addition to numbers, the telephones had two function buttons, enabling speed dialing. These were groundbreaking telephones providing functions other than telephone calls.
Photograph: exhibit at the NTT History Center of Technologies
Fax services begin.
Opening of the New Tokyo International Airport (Narita Airport)
The Nikkei Stock Average reaches 1 million yen


Image: Photograph of a man having a conversation outdoors using a shoulder telephone.


Shoulder telephones are introduced; NTT is established

  Car phone services with wireless receivers began in 1979. These telephones weighed as much as 7 kg and were expensive with costs (including call charges) amounting to around 500,000 yen per year, and so users were mainly VIPs. Six years later, the shoulder telephone was born out of customers’ requests for a telephone that can used away from the car. This revolutionary telephone could be taken out of the car, making it possible to communicate by telephone outside of the office.

1985年の出来事をもっと読む READ MORE

At that time, not only was the usage area for these shoulder telephones limited to along main roads—the range from the car telephone’s base station in which the telephone could be used— but also these telephones weighed some 3 kg and had a standby time of 8 hours. Carried over the shoulder, the telephones had a unique style, and call rates were still far from cheap. However, it is precisely these shoulder telephones that are the roots of current-day hand-held mobile telephones, and it is they that were the catalyst for realizing a world in which every person has their own personal telephone.
 In 1985, the Nippon Telegraph and Telephone Public Corporation was dissolved and the Nippon Telegraph and Telephone Corporation launched in its stead. The new company became known as “NTT.” The Public Telecommunications Act was revised and renamed the Telecommunications Business Act, liberalizing participation in the telecommunications business. In the following year, the 1.95 million NTT shares owned by the Japanese Government were sold; services such as the “Pressed Flower Telegram Service”, airplane public telephone service, message dial services, and reduced telephone call rates on Saturdays were introduced as customer-orientated business initiatives were enthusiastically developed and expanded.

Photograph: exhibit at the NTT History Center of Technologies

epoch-making 1985

Image: Dedicated mobile shoulder telephone 101 model. Portable shoulder telephone (101 model)
First-generation shoulder telephones (100 model) weighed a heavy 3 kg. They were portable/car telephones to be used when away from your vehicle. Launched in 1988, the 101 model portable telephone was to be used as a portable phone only. The telephone’s portability was groundbreaking, but they weighed 2.5 kg. They were simply an extension of the car phone.
Photograph: exhibit at the NTT History Center of Technologies
Image: Photograph of a woman having a conversation outdoors using a handheld telephone.


Mobile telephone services commence

  In 1987, two years after the launch of shoulder telephones, NTT launched a handheld mobile telephone in response to the needs and expectations of innumerable users. “Take-and-walk” mobile telephone services began. This was also the starting point for the intense race for technological innovation with rivals companies that flocked to the mobile telephone market one after the other.

1987年の出来事をもっと読む READ MORE

The year 1991 saw the birth of “mova”, a mobile telephone designed to be the “world’s smallest and lightest mobile telephone.” The huge success of this mobile telephone revolutionized the image of mobile telephones as “status symbols of the wealthy”, transforming them into “indispensable communication tools” for many, many people.
 In 1992, NTT’s mobile communications business was spun off into a new company, NTT Mobile Communications Network, Inc. As the times anticipated the “era of every person having a mobile terminal” that would eventually come, the mobile communications market was explosively invigorated.
 The PHS (Personal Handy-phone System) debuted in 1995. Providing inexpensive call rates and using a digital system, these devices became widely accepted as “mobile public telephones” capable of responding to the multimedia era of the future.
 Coming ten years after the company’s privatization in 1985, this period was truly an “era of innovation and leaps forward” for NTT. However, even during this period, NTT was steadily making preparations for the “next generation” that was soon to arrive.

Photograph: NTT

epoch-making 1987

Image:TZ-802 model TZ-802 model
The TZ-802 model shown in the photograph weighed approx. 900 g—hardly lightweight by today’s standards, but it created the trigger for the concept of mobile telephones to be born. In this year, the number of people with mobile telephone contracts exceeded 100,000 for the first time.
Photograph: exhibit at the NTT History Center of Technologies
Launch of the WWW
Great Hanshin-Awaji Earthquake


Image: Photograph of a scene from the aerial show presented during the Opening Ceremony of the Nagano 1998 Olympic Games.


Holding of the Olympic and Paralympic Winter Games Nagano 1998

  In an age of aiming to enrich citizens’ lives by invigorating industry through the promotion of multimedia had become a global trend, the Olympic and Paralympic Winter Games Nagano 1998 presented an excellent opportunity for NTT. Acting as a Gold Sponsor for these Games, NTT undertook the maintenance and improvement of local communications infrastructure, as well as the construction, maintenance, and operation of communications systems for the running of the Games.

1998年の出来事をもっと読む READ MORE

In the field of communications, ultra-high-speed communications networks comprising optical fiber cables, digital switches, high-capacity multiplex transmission equipment, and satellite communications circuits were constructed, and sound/image/data sending systems were shared. These systems were also used in new traffic managment systems for dealing with traffic congenstion during the Games.
 An event where the world’s top athletes go head-to-head in fierce competition, the Olympics is for those aiming to develop technology to lead the future a grand stage on which to demonstrate these achievements. The trust won at these Olympics provided NTT with tremendous sustenance as the company greeted a new century.

Photograph: Reuters/Aflo

epoch-making 1998

Image: Wristwatch-style PHS. Wristwatch-type PHS
Hi-tech mobile communication services packed with the know-how of NTT, including the wristwatch-type PHS, ultra-small communication unit, and PHS multimedia communications systems are provided, enabling many people to experience a future for communications.
Photograph: exhibit at the NTT History Center of Technologies
Image: Photograph of the P 501i mobile telephone model.


Commencement of i-mode services

  In 1999, when the Internet penetration was not yet that high, the mobile telephone Internet connection service i-mode was launched. In contrast to connecting to the Internet from a computer—which required many steps, including setting-up circuits and modems and concluding contracts with providers—, with i-mode, you could simply access the Internet directly from your mobile telephone, and so the service spread like wildfire. The number of service users was 1 million after six months and grew to some 10 million users in just one year. Not only was the service easy to operate, but also the contents were listed by category in alphabetical order so that users could find the information they wanted at a glance, making the service very easy and convenient to use. Thus i-mode created an opportunity for broadening the Internet base.

1999年の出来事をもっと読む READ MORE

Behind the success of this service lay continuous technological evolution, such as the expansion and enhancement of mobile terminal functions, improvement of data communication speed, and reduction of packet communication charges. When the service was initially introduced, terminal screens were black-and-white, but by December of the same year Docomo was using color liquid-crystal screens for the first time, after which advances were made in terms of enhancing high definition and increasing screen size. Furthermore, diverse advances are now the driving force supporting mobile telephone culture. These include the “Deco-mail” service, which enables the use of templates and images in e-mails whereas previously only emoji (pictographs) could be used (introduced in 2004); and the “i-channel” service, which automatically displays news, weather, entertainment news, fortune-telling, and other information on the standby screen (introduced in 2005).

Photograph: exhibit at the NTT History Center of Technologies

epoch-making 1999

Image: Mova 501i series. mova 501iシリーズ
On February 22, 1999, the mova 501i was the only i-mode service-compliant terminal device. The i-menu contained 68 sites, with content focused on news and weather. The next year saw the launch of i-app, followed by i-motion, flash functions, chaku-motion, chaku-uta (truetone ringtones), and other services one after the other.
Photograph: Reuters/Aflo


Image: Photograph of optical fibers emitting light in the dark.


Provision of optical fiber services to general households

  NTT was quick to focus attention on optical fiber cables, which have the outstanding characteristics of high speed and broadband transmission, and began developing this technology in the 1970s. GI fiber cables were introduced for suburban broadcasting services (commercial testing) in 1981, and a trans-Pacific submarine cable system was completed in 1989. In this way, by undertaking the diffusion of high-speed/high-volume optical communications systems such as optical fiber systems, NTT has consistently been a leader in the evolution of the optical fiber industry.

2000年の出来事をもっと読む READ MORE

These efforts took shape in a big way in 2001. In that year, NTT East Japan and NTT West Japan introduced FTTH (Fiber To The Home)—a communications system for general households that uses optical fibers—in the form of B FLET’S. Subsequently, with the rapid diffusion of the Internet and commencement of video screening services, demand for FTTH (which boasts incredibly fast transmission speeds) increased at an accelerated pace.
 Going back two years, NTT DOCOMO launched the “i-mode” service in February 1999. This made it possible to use online services that previously had only been available to personal computer users using just a mobile telephone, thereby making e-mail, ticket reservations, restaurant and “yellow pages” searches, and other convenient services for everyday living easily available for people to use anywhere, anytime. These i-mode services were widely embraced, mainly by younger age groups, generating a record number of service subscribers of some 5.6 million in the year between their introduction and the end of March 2000 and creating a new form of communication.

Photograph: Corbis/Aflo

epoch-making 2001

Image: B Flets B FLET'S
Using optical fiber services provided experimentally from the previous year, provision of fixed price services offering high speed Internet access began in earnest on August 1, 2001 (initial monthly fee: 9,000 yen/100 M maximum). In the approx. four years since commencement of this service, NTT East and West have collectively concluded more than 2 million user contracts.
Terrestrial digital broadcasting commences
Magnetically levitated linear motor car (Aichi High-Speed Transit Tobu Kyuryo Line) opens
LTE services commence
Great East Japan Earthquake
Kyushu Shinkansen Kagoshima Route opens
Tokyo SKYTREE opens


Image: Photograph of Japanese representatives at the 125th IOC (International Olympic Committee) General Assembly raising their hands in joy at Japan being selected to host the 2020 Olympics/Paralympics.


Japan is selected to host the Olympic and Paralympic Games Tokyo 2020

  On September 7, 2013, at the 125th IOC (International Olympic Committee) General Assembly held in the Argentinean capital city of Buenos Aires, Tokyo (Japan) was selected as the host for the 2020 Summer Olympics. This will be the second time that Tokyo plays host to the Olympics (the planned 1940 Tokyo Olympics were cancelled due to the Sino-Japanese War), and the fourth time, after a break of 22 years, that Japan has hosted the Olympics, following Tokyo in 1964, Sapporo in 1972, and Nagano in 1998.

2013年の出来事をもっと読む READ MORE

The Olympic bid campaign began in 2011, when Tokyo became a city candidate to host the Games. At this stage, there were six cities around the world, including Tokyo, that had submitted bids to host the Games to the IOC. With Rome (Italy) withdrawing their bid, the remaining five candidate cities made their first-round presentations the following year (2012), after which the IOC Executive Board took their first vote and chose Istanbul (Turkey), Madrid (Spain), and Tokyo (Japan) as the three official candidate cities for the 2020 Games.
 The IOC Evaluation Committee conducted inspections of the proposed sites in March 2013, and the candidate cities made their second-round presentations to IOC members in July of the same year, with the day of reckoning coming in September. As part of Japan’s final presentation ahead of the vote, Her Imperial Highness The Princess Takamado made a speech in both French and English and TV personality Christel Takigawa made presentation that featured a play on the word “O-mo-ten-na-shi” (Japanese-style hospitality) that set media buzzing. In the voting that followed, Tokyo received the top vote of 49 in the first round and then 60 votes out of approx. 100 in the final round, solidly securing selection as host of the 2020 Olympics. IOC President Rogge’s announcement of the name “TOKYO!” is still fresh in memory.

Photograph: Mainichi Shimbun/Aflo

NTT is a Tokyo 2020 Olympic Gold Partner (Telecommunications services)

epoch-making 2013

Image: “Japan Connected-free Wi-Fi” logo Japan Connected-free Wi-Fi
Japan Connected-free Wi-Fi is a smartphone app that enables users to search for and connect with more than 140,000 Internet access points at major airports, major train stations, sightseeing facilities, convenience stores, and other locations throughout Japan. Available in 11 languages (English, Chinese (simplified characters), Chinese (traditional characters), Korean, Thai, Malay, Indonesian, French, Spanish, German, and Japanese), the service provides an environment in which foreign visitors to Japan can use the Internet freely and conveniently.
Commencement of 4K broadcasting
Hokuriku Shinkansen services begin
Image: Photograph of former NTT President and CEO Hiro’o Unoura on receiving the news that NTT had been selected as the first Tokyo 2020 Olympic/Paralympic Gold Partner.


NTT is selected as a Olympic and Paralympic Games Tokyo 2020 Gold Partner

  In this year, NTT concluded six-year partnership agreements regarding Olympic and Paralympic athletes representing Japan, including 2020, the year in which the Olympic and Paralympic Games Tokyo 2020 are to be held. Accordingly, NTT was the first corporation to be chosen as a Gold Partner, which is Japan’s highest level sponsorship program.

2015年の出来事をもっと読む READ MORE

What NTT is aiming to achieve is “connections” through ICT between people and between Japan and the world. We believe that ensuring the safety that is required alongside convenience by keeping ahead of the tide of ICT, which continues to evolve rapidly, creates a “connection” with the vision of the Olympic Games Tokyo 2020 of achieving a “truly harmonious society through affirmation of all kinds of diversity”. We believe that this will contribute to the management of “an Olympics that can be enjoyed comfortably with peace of mind”.
 Tokyo in 1964, Sapporo in 1972, Nagano in 1998—having provided various communications services for all of the Olympics and Paralympics that Japan has hosted thus far, NTT is building on the “value” of the communications and security technology based on the communications technology we have accumulated as well as our service infrastructure reaching throughout Japan and the world, dedicating our full effort to ensuring that we provide the ultimate “o-mo-te-na-shi” (Japanese-style hospitality) to everyone involved with the Olympic and Paralympic Games Tokyo 2020.

epoch-making 2015

Image: Photograph showing a match recreated using kirari! Technology. kirari!
Immersive Telepresence Technology, Kirari!, is an NTT (ultra-high reality) communication technology aimed at transmitting entire competition spaces in real time not only throughout Japan but also throughout the world. Realistically recreating the powerful performances of athletes in far-away sporting venues and the spaces and environments in which the athletes find themselves, this technology will achieve simultaneous communication at multiple points around the world, thus providing people with the feeling as if they were at that sporting venue themselves, and contributing to people sharing enthusiasm for sports all over the world in the lead up to the 2020 Olympics.
Photograph: PoC in NTT R&D Forum 2015
Image: Photograph of a stadium used during the Rio 2016 Olympics/Paralympics.


2016 The Olympic Games Rio 2016.
Four years on, the Games are finally coming to Tokyo!

As a Gold Partner of the Japanese Olympic Committee (JOC) and the Japanese Para-Sports Association (JPC), NTT provided support for the athletes representing Japan at the 2016 Rio Summer Olympic/Paralympic Games.

2016年の出来事をもっと読む READ MORE

At the Olympic and Paralympic Games Tokyo 2020, too, NTT will be supporting the Games behind the scenes, mainly through communications services, as the first corporation to be chosen as a Gold Partner, which is Japan’s highest level sponsorship program.
 These Olympics demand even greater convenience and safety than ever before due to the rapid evolution in telecommunications technology. In addition to contributing to management to ensure that the Games are safe, reliable, and comfortable, NTT is pouring our full effort into providing outstanding hospitality using the communications and security technology as well as our domestic and international service infrastructure. In particular, our top mission is to maintain cyber security through communications services with well-prepared systems.  As the eight-fold increase from Beijing 2008 to London 2012 shows, the amount of information being transmitted while the Olympics are taking place is increasing with each Games. NTT will construct networks capable of efficiently transmitting the increased information volume for the Olympic Games Tokyo 2020 with the best quality possible.

Photograph: sunny/PIXTA

epoch-making 2016

Image: 5G (next generation mobile communication system) logo 5G (next generation mobile systems)
Mobile Internet traffic volume is expected to increase more than 1,000 times in the 2020s. To respond to this increase, NTT is developing 5G (next generation mobile systems) that achieve increased network system capacity at low cost and low power consumption.