Issued Patents 1989
Showing 1–6 of 6 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 |
| 4883562 | Method of making a photosensor | Hirofumi Ogawa, Kenji Sameshima, Takaaki Unnai, Masanao Yamamoto, Keiichi Shidara +3 more | 1989-11-28 |
| 4884011 | Light-detecting device | Tatsuo Makishima, Kazutaka Tsuji, Sachio Ishioka, Takashi Yamashita, Keiichi Shidara +2 more | 1989-11-28 |
| 4866332 | Target of image pickup tube | Yukio Takasaki, Tatsuo Makishima, Kazutaka Tsuji, Eisuke Inoue, Yasuhiko Nonaka +9 more | 1989-09-12 |
| 4860093 | Method and apparatus for driving a plurality of pick-up tubes having their cathodes supplied by a common negative potential | Takashi Yamashita, Keiichi Shidara, Masaaki Aiba, Yukio Takasaki | 1989-08-22 |
| 4829345 | Electronic device having light transmission system | Sachio Ishioka, Kazutaka Tsuji, Yukio Takasaki, Yasuharu Shimomoto, Hirokazu Matsubara | 1989-05-09 |