Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5260956 | Laser drive circuit | Naoto Inaba, Takashi Tanemura | 1993-11-09 |
| 5140488 | Magnetic tape cassette | Masanobu Sugiyama | 1992-08-18 |
| 5109244 | Electronic flash apparatus for cameras | Tadashi Otani, Toru Kosaka | 1992-04-28 |
| 5061633 | Method for analyzing lipid peroxides using aromatic phosphines | Hiroshi Ohrui, Kazuaki Akasaka | 1991-10-29 |
| 5023648 | Flash taking lens shutter camera | Tsugio Takahashi, Hitoshi Aoki, Toru Kosaka | 1991-06-11 |
| 5006700 | Distance-measuring apparatus for camera | Toru Kosaka, Yoshiaki Ohtsubo | 1991-04-09 |
| 4969007 | Electronic flash apparatus for cameras | Tadashi Otani, Toru Kosaka | 1990-11-06 |
| 4962400 | Zooming control device for camera | Tadashi Otani, Toru Kosaka | 1990-10-09 |
| 4947000 | Aromatic phosphine oxide compound | Hiroshi Ohrui, Kazuaki Akasaka | 1990-08-07 |
| 4947276 | Magnetic tape cassette with remaining tape indicator | — | 1990-08-07 |
| 4926279 | Magnetic tape cassette | Satoru Kurashina | 1990-05-15 |
| 4881137 | Magnetic tape cassette with tape protective closure and lock mechanism | Yoshinori Yamamoto, Masao Ohyama, Kenichi Horikawa, Shigeru Mizusawa, Kenji Kawakami | 1989-11-14 |
| 4843510 | Magnetic tape cassette with tape protective closure and lock mechanism | Yoshinori Yamamoto, Masao Ohyama, Kenichi Horikawa, Shigeru Mizusawa, Kenji Kawakami | 1989-06-27 |
| 4774617 | Magnetic tape cassette with improved brake assembly | — | 1988-09-27 |
| 4771352 | Magnetic tape cassette with easily assembled lid spring | Toshihiro Watanabe | 1988-09-13 |
| 4739432 | Lid assembly for magnetic tape cassette | — | 1988-04-19 |
| 4714213 | Magnetic tape cassette with magnetic tape protective closure and bias means therefor | Toshihiro Watanabe | 1987-12-22 |
| 4646190 | Magnetic tape cassette having automatic brake | — | 1987-02-24 |
| 4497564 | Exposure mode setting device in an exposure control apparatus of a camera | Yuji Okubo, Sakuji Watanabe | 1985-02-05 |
| 4477169 | Automatic focusing camera system and photographing lens structure therefor | Nobuhiko Terui, Sakuji Watanabe | 1984-10-16 |
| 4422746 | Auto focus camera | Nobuo Okabe | 1983-12-27 |