Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6271691 | Chopper type voltage comparison circuit | Kenji Toyoda, Kimio Maruyama | 2001-08-07 |
| 6246161 | Cathode ray tube having a small-diameter neck and method of manufacture thereof | Takao Kawamura, Hisashi Nose | 2001-06-12 |
| 5818155 | Cathode ray tube having a small-diameter neck and method of manufacture thereof | Takao Kawamura, Hisashi Nose | 1998-10-06 |
| 5233265 | Photoconductive imaging apparatus | Yukio Takasaki, Kazutaka Tsuji, Tatsuo Makishima, Tadaaki Hirai, Sachio Ishioka +17 more | 1993-08-03 |
| 4952839 | Photoconductive device and method of operating the same | Kenkichi Tanioka, Mitsuo Kosugi, Junichi Yamazaki, Keiichi Shidara, Kazuhisa Taketoshi +16 more | 1990-08-28 |
| 4888521 | Photoconductive device and method of operating the same | Kenkichi Tanioka, Keiichi Shidara, Tatsuro Kawamura, Junichi Yamazaki, Eikyuu Hiruma +16 more | 1989-12-19 |
| 4866332 | Target of image pickup tube | Yukio Takasaki, Tatsuo Makishima, Kazutaka Tsuji, Tadaaki Hirai, Yasuhiko Nonaka +9 more | 1989-09-12 |
| 4816715 | Image pick-up tube target | Takaaki Unnai, Yasuhiko Nonaka | 1989-03-28 |
| 4717854 | Image pick-up tube target | Masanao Yamamoto, Keiichi Shidara, Eikyuu Hiruma | 1988-01-05 |
| 4617248 | Doped photoconductive film including selenium and tellurium | Kenkichi Tanioka, Keiichi Shidara, Takao Kuriyama, Yukio Takasaki, Tadaaki Hirai +1 more | 1986-10-14 |
| 4587456 | Image pickup tube target | Yasuhiko Nonaka, Masanao Yamamoto | 1986-05-06 |
| 4563611 | Image pick-up tube target | Yasuhiko Nonaka, Keiichi Shidara, Kenkichi Tanioka | 1986-01-07 |
| 4463279 | Doped photoconductive film comprising selenium and tellurium | Keiichi Shidara, Kenkichi Tanioka, Teruo Uchida, Chushirou Kusano, Yukio Takasaki +1 more | 1984-07-31 |