Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5384597 | Image pickup tube utilizing third electrode and its operating method | Kenji Sameshima, Tatsuo Makishima, Tadaaki Hirai, Yukio Takasaki, Misao Kubota +1 more | 1995-01-24 |
| 5233265 | Photoconductive imaging apparatus | Yukio Takasaki, Kazutaka Tsuji, Tatsuo Makishima, Tadaaki Hirai, Sachio Ishioka +17 more | 1993-08-03 |
| 5101255 | Amorphous photoelectric conversion device with avalanche | Sachio Ishioka, Yukio Takasaki, Tadaaki Hirai, Kazutaka Tsuji, Tatsuo Makishima +6 more | 1992-03-31 |
| 5070272 | Photoconductive device and method of operating same | Takeshi Kikawa, Kazutaka Tsuji, Kenji Sameshima, Tadaaki Hirai, Junichi Yamazaki +1 more | 1991-12-03 |
| 5021705 | Method of fabricating an image pick-up tube and target section used therewith | Masanao Yamamoto, Takaaki Unnai, Shigeru Ehata, Tadaaki Hirai, Kenji Sameshima +4 more | 1991-06-04 |
| 4980736 | Electric conversion device | Yukio Takasaki, Kazutaka Tsuji, Tatsuo Makishima, Tadaaki Hirai, Sachio Ishioka +7 more | 1990-12-25 |
| 4952839 | Photoconductive device and method of operating the same | Kenkichi Tanioka, Mitsuo Kosugi, Junichi Yamazaki, Kazuhisa Taketoshi, Tatsuro Kawamura +16 more | 1990-08-28 |
| 4900975 | Target of image pickup tube having an amorphous semiconductor laminate | Yasuharu Shimomoto, Sachio Ishioka, Yukio Takasaki, Tadaaki Hirai, Kazutaka Tsuji +9 more | 1990-02-13 |
| 4888521 | Photoconductive device and method of operating the same | Kenkichi Tanioka, Tatsuro Kawamura, Junichi Yamazaki, Eikyuu Hiruma, Kazuhisa Taketoshi +16 more | 1989-12-19 |
| 4884011 | Light-detecting device | Tatsuo Makishima, Tadaaki Hirai, Kazutaka Tsuji, Sachio Ishioka, Takashi Yamashita +2 more | 1989-11-28 |
| 4883562 | Method of making a photosensor | Hirofumi Ogawa, Kenji Sameshima, Tadaaki Hirai, Takaaki Unnai, Masanao Yamamoto +3 more | 1989-11-28 |
| 4866332 | Target of image pickup tube | Yukio Takasaki, Tatsuo Makishima, Kazutaka Tsuji, Tadaaki Hirai, Eisuke Inoue +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, Masaaki Aiba, Yukio Takasaki, Tadaaki Hirai | 1989-08-22 |
| 4717854 | Image pick-up tube target | Masanao Yamamoto, Eisuke Inoue, Eikyuu Hiruma | 1988-01-05 |
| 4617248 | Doped photoconductive film including selenium and tellurium | Kenkichi Tanioka, Takao Kuriyama, Yukio Takasaki, Tadaaki Hirai, Yasuhiko Nonaka +1 more | 1986-10-14 |
| 4563611 | Image pick-up tube target | Yasuhiko Nonaka, Eisuke Inoue, Kenkichi Tanioka | 1986-01-07 |
| 4463279 | Doped photoconductive film comprising selenium and tellurium | Kenkichi Tanioka, Teruo Uchida, Chushirou Kusano, Yukio Takasaki, Yasuhiko Nonaka +1 more | 1984-07-31 |
| 4445131 | Photoconductive image pick-up tube target | Yasuhiko Nonaka, Naohiro Goto | 1984-04-24 |
| 4330733 | Photoconductive target | Naohiro Goto, Tatsuro Kawamura, Eikyu Hiruma, Yohitsumu Ikeda, Kenkichi Tanioka +5 more | 1982-05-18 |
| 4307319 | Semiconductor layer of oxygen depletion type cerium oxide or lead oxide | Motoyasu Terao, Tadaaki Hirai, Eiichi Maruyama, Hideaki Yamamoto, Tsutomu Fujita +1 more | 1981-12-22 |
| 4277515 | Targets for use in photoconductive image pickup tubes | Yasuhiko Nonaka, Naohiro Goto | 1981-07-07 |
| 4219831 | Targets for use in photoconductive image pickup tubes | Yasuhiko Nonaka, Naohiro Goto | 1980-08-26 |