Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6465967 | Control circuit of light emitting element | Toshiaki Tsujikawa, Tadaaki Suda, Hiroyuki Basho | 2002-10-15 |
| 5565710 | Process for manufacturing granular igniter | Koji Ochi, Nobukazu Asano | 1996-10-15 |
| 5370887 | Dyeing agent and dyeing solution | Norio Miyao, Testuya Sagoh | 1994-12-06 |
| 5238695 | Dyeing agent, dyeing solution and method for dyeing strawberry | Kazuo Nakaji, Tetsuya Sagoh | 1993-08-24 |
| RE31585 | Long time exposure preventing device for camera with electronic flash | Masahiro Kawasaki | 1984-05-15 |
| 4329032 | Automatic focus indicating device for camera | Harumi Aoki | 1982-05-11 |
| 4326127 | Focus detecting device | Harumi Aoki | 1982-04-20 |
| 4320946 | Camera focus detecting device | Harumi Aoki, Katsuhiko Miyata | 1982-03-23 |
| 4319813 | Automatic focus indicating device for camera | Harumi Aoki | 1982-03-16 |
| 4298259 | Focus detecting device for photographic camera | Harumi Aoki | 1981-11-03 |
| 4293207 | Camera focus detecting device | Harumi Aoki, Masahiro Kawasaki | 1981-10-06 |
| 4252425 | Camera focus detecting device | Harumi Aoki | 1981-02-24 |
| 4250413 | Camera power supply maintaining circuit | Masahiro Kawasaki | 1981-02-10 |
| 4209245 | Long time exposure preventing device for camera with electronic flash | Masahiro Kawasaki | 1980-06-24 |