Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6323977 | Optical transmitting and receiving apparatus | Toshiaki Shou, Fumio Sato, Motoyasu Nagashima, Masamichi Sato, Kazumasa Taninaka | 2001-11-27 |
| 6181452 | Optical transmitting and receiving apparatus | Toshiaki Shou, Fumio Sato, Motoyasu Nagashima, Masamichi Sato, Kazumasa Taninaka | 2001-01-30 |
| 5600471 | Optical wireless data transmission system and optical wireless data transmitting/receiving apparatus | Kazutoshi Hirohashi | 1997-02-04 |
| 5349463 | Optical radio repeater with signal quality detection | Kazutoshi Hirohashi, Hiroshi Horii, Hideo Koike, Tetsuo Fukasawa, Susumu Katayama +7 more | 1994-09-20 |