Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888521 | Photoconductive device and method of operating the same | Kenkichi Tanioka, Keiichi Shidara, Tatsuro Kawamura, Junichi Yamazaki, Eikyuu Hiruma +16 more | 1989-12-19 |
| 4884011 | Light-detecting device | Tadaaki Hirai, Kazutaka Tsuji, Sachio Ishioka, Takashi Yamashita, Keiichi Shidara +2 more | 1989-11-28 |
| 4866332 | Target of image pickup tube | Yukio Takasaki, Kazutaka Tsuji, Tadaaki Hirai, Eisuke Inoue, Yasuhiko Nonaka +9 more | 1989-09-12 |