- Nippon Telegraph and Telephone (NTT)
(NYSE:NTT)
Global group of regional, long-distance, mobile, and data communications service providers and other diversified businesses.
www.ntt.co.jp
- Jupiter Telecommunications Co., Ltd.
Operating cable TV, broadband Internet access, and telephony services in Japan.
www.jcom.co.jp
- Nokia Japan
www.nokia.co.jp
- Brastel
Provides international telecommunications services in Japan, Brasil and the USA. Callback and direct phone call systems available.
www.brastel.co.jp
- Seikosha, Inc.
Designs and manufactures custom communication systems with applications in broadcasting, railways, electric power utilities and law enforcement.
ksks.co.jp
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