Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6960029 | Plastic optical fiber end surface processing method, processing apparatus for the method, cutter for use in the method, and plastic optical fiber connecting method | Hiroshi Kizukuri | 2005-11-01 |
| 4750200 | Call meter signal receiver for subscriber's private metering of telephone system | Kazuhiro Sato, Hiroyoshi Mori | 1988-06-07 |
| 4748659 | Calling signal transmission apparatus | Kiyoshi Kasahara, Kenichi Ogawa, Kenji Takato, Shoji Nojiri, Yasuo Miyazaki +3 more | 1988-05-31 |
| 4670874 | Communications system for transmitting and receiving data and voice signals simultaneously through 2-wire signal lines | Kazuhiro Sato, Hiroyoshi Mori | 1987-06-02 |
| 4631366 | Battery feed circuit for subscriber line | Kenji Takato, Mitsutoshi Ayano, Kiyoshi Shibuya, Atsuo Serikawa | 1986-12-23 |