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V type Coaxial Cable Transmission System(1955)

Studying foreign technology and rebuilding Japan

Photo of Vtype coatial cable transmission

In 1952, Nippon Telegraph and Telephone Public Corporation (predecessor to today's NTT) was established as a national agency responsible for Japan's telecommunications business. NTT announced a five-year telegraph and telephone improvement plan designed to upgrade Japan's telecommunications network and help rebuild the post-war economy. That same year, Fujitsu revived its relationship with Siemens AG of Germany, Fujitsu's pre-war technology partner, and sent over a team of engineers with the intent to research and develop new fields of technology in which Japan had fallen behind relative to other countries. The vacuum tube V-type carrier equipment was one of the successes born out of this effort. This small and high-performance equipment, which was developed in accordance with NTT's policy, led to Fujitsu's advance into large-scale terminals as well as repeater sites. Further, it contributed to Japan's postwar reconstruction. With this experience, Fujitsu established a model for developing devices and new technologies, and applied them as future growth engines.