Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6839166 | Versatile microscope system with modulating optical system | Ikutoshi Fukushima, Takeshi Hashimoto, Mitsuru Namiki, Hiroyuki Minakata | 2005-01-04 |
| 5465178 | Focusing optical system for semiconductor lasers | Sadao Nakai, Masanobu Yamanaka, Koji Ishikawa, Tsuyoshi Sato, Mikihiko Terashima | 1995-11-07 |
| 5117308 | Lens system using unhomogenous media | Hirofumi Tsuchida, Norihiko Aoki | 1992-05-26 |
| 4633457 | Optical information reading apparatus | — | 1986-12-30 |
| 4525825 | Method and apparatus for detecting focussing and tracking error signals | Kenichi Ito, Tohru Musha, Kiichi Kato | 1985-06-25 |
| 4507772 | Playback optical system for video discs | — | 1985-03-26 |
| 4488775 | Light absorptive film having an anti-reflecting property | — | 1984-12-18 |
| 4472023 | High resolution image forming optical system | — | 1984-09-18 |
| 4445208 | Signal detecting system in optical information reading apparatus | Kenichi Ito | 1984-04-24 |
| 4381883 | Light absorptive film provided with a reflection preventive means | Takaharu Koike | 1983-05-03 |