Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842968 | Hologram recording medium | Chiaki Kojima | 1989-06-27 |
| 4819163 | Driving power control system | Shigeru Terada, Yasuhiko Mishio | 1989-04-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842968 | Hologram recording medium | Chiaki Kojima | 1989-06-27 |
| 4819163 | Driving power control system | Shigeru Terada, Yasuhiko Mishio | 1989-04-04 |