Issued Patents All Time
Showing 51–65 of 65 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5495839 | Engine fuel injection controller | Satoshi Samejima, Koji Ishihara | 1996-03-05 |
| 5268791 | Lens system using graded refractive index lens component | — | 1993-12-07 |
| 5235464 | Lens system | — | 1993-08-10 |
| 5218475 | Attachment lens system | — | 1993-06-08 |
| 5184251 | Vari-focal lens system | Norihiko Aoki | 1993-02-02 |
| 5157550 | Vari-focal lens system | Norihiko Aoki, Hiroshi Matsuzaki | 1992-10-20 |
| 5117308 | Lens system using unhomogenous media | Norihiko Aoki, Kimiaki Yamamoto | 1992-05-26 |
| 5046833 | Zoom lens system | — | 1991-09-10 |
| 5004329 | Vari-focal lens system | — | 1991-04-02 |
| 4999007 | Vari-focal lens system | Norihiko Aoki, Atsujirou Ishii | 1991-03-12 |
| 4947198 | Finder optical system for single reflex cameras | Tsutomu Inanobe | 1990-08-07 |
| 4875444 | Swirl chamber for diesel engines and the like | Toshiaki Tanaka, Akira Oyamada, Sumio Hirao | 1989-10-24 |
| 4833373 | System for shaking water off windshield | Kazuhiro Doi, Bunichiro Fujii, Naoki Honda, Hiroyuki Kanesaka | 1989-05-23 |
| 4828383 | Range-finding optical system | Keiji Kunishige | 1989-05-09 |
| 4810071 | Variable focal length lens system | Shin-ichi Mihara | 1989-03-07 |