Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5703711 | In-line optical amplifier | — | 1997-12-30 |
| 5671456 | System for providing an accurate indication whether film is exposed or unexposed, independent of battery voltage | Kenji Tsuji, Toshihito Kido | 1997-09-23 |
| 5668658 | Transfer of repeater information signals in in-line optical amplifier repeater system | — | 1997-09-16 |
| 5649455 | Vehicle steering wheel | Toshifumi Tsuchihashi, Kunio Ohya | 1997-07-22 |