Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7023964 | Communication system | Masaharu Matsumoto, Kazushige Haruta, Hiroshi Ozawa, Yoshiharu Kano, Takashi Matsumoto | 2006-04-04 |
| 6798872 | Caller information display system and recording medium | Masaharu Matsumoto | 2004-09-28 |
| 6035195 | Mobile radio telephone for emitting position information indicating an assigned zone | Toshihide Kishida, Hideaki Yui, Hideya Toyama | 2000-03-07 |
| 5802475 | Mobile radio telephone apparatus | Toshihide Kishida, Hideaki Yui, Hideya Toyama | 1998-09-01 |
| 5555541 | Exchange connected to a control channel junction line | Kazuhiko Ito, Takeshi Uehara, Toru Tachibana, Keiji Fukuda | 1996-09-10 |
| 5524045 | Cordless telephone terminal controlling system | — | 1996-06-04 |
| 5319640 | Transmitting/receiving system having digital switching network | Hiroshi Yamasaki, Yuji Maeda | 1994-06-07 |
| 5315588 | Method of controlling frame-relay module, and high-speed switching system | Yasuhiro Kajiwara | 1994-05-24 |
| 5195129 | Switching system for application services | Tsuyoshi Kanai, Hideo Tachieda, Naoto TADA, Norihiro Aritaka, Masatomo Yazaki | 1993-03-16 |
| 5142571 | Digital telephone set having an emergency switching function and communication system having the same | Yutaka Suzuki, Michihiro Hamada, Yoshiaki Inoue | 1992-08-25 |
| 5008884 | Private automatic branch exchange system with line accessing number adding feature | Toru Ogawa, Haruo Moritomo, Yoshiaki Suya, Mikio Nakayama | 1991-04-16 |