Issued Patents All Time
Showing 126–133 of 133 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308462 | Process for producing a ferroelectric film device | Kenji Iijima, Ryoichi Takayama, Ichiro Ueda | 1994-05-03 |
| 5291484 | Relay and exchange system for time division multiplex data | Tatsuo Fujiwara, Hirotoshi Shimizu, Masashi Matsumoto, Yasushi Fujioka | 1994-03-01 |
| 5281818 | Pyro-electric type infrared detector | Ryoichi Takayama, Motonobu Yoshikawa, Yoshiharu Yamamoto | 1994-01-25 |
| 5202905 | Moden signal detecting system for adaptive differential PCM CODEC | Keizo Sakamoto, Hironori Orihara | 1993-04-13 |
| 5159611 | Variable rate coder | Kohei Iseda, Shigeyuki Unagami | 1992-10-27 |
| 5103481 | Voice detection apparatus | Kohei Iseda, Kenichi Abiru, Shigeyuki Unagami | 1992-04-07 |
| 5021660 | Pyroelectric infrared detector and driving method therefor | Ryoichi Takayama, Hisahito Ogawa, Koji Nomura, Junko Asayama, Atsushi Abe | 1991-06-04 |
| 4831636 | Coding transmission equipment for carrying out coding with adaptive quantization | Tomohiko Taniguchi, Kohei Iseda, Fumio Amano, Shigeyuki Unagami, Shoji Tominaga | 1989-05-16 |