Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5479292 | Infrared wide-angle single lens for use in an infrared optical system | Motonobu Yoshikawa | 1995-12-26 |
| 5281818 | Pyro-electric type infrared detector | Yoshihiro Tomita, Ryoichi Takayama, Motonobu Yoshikawa | 1994-01-25 |
| 5255113 | Pos-objective type optical scanner | Motonobu Yoshikawa | 1993-10-19 |
| 5231144 | Highly crystalline polypropylene for forming film | Hajime Mizuno, Kenji Yamamoto, Hideo Sakurai | 1993-07-27 |
| 5157532 | Post-objective type optical scanner | Motonobu Yoshikawa | 1992-10-20 |
| 5099361 | Projection lens and projection television system using the same | Yasuo Nakajima | 1992-03-24 |
| 5089907 | Post-objective type optical scanner and image forming apparatus using the same | Motonobu Yoshikawa | 1992-02-18 |
| 4983016 | Transmission projection screen and method of manufacturing the same | — | 1991-01-08 |
| 4950062 | Projection lens | Yuichi Kimura, Masayuki Takahashi | 1990-08-21 |
| 4915484 | Anamorphic single lens | — | 1990-04-10 |
| 4850663 | Light scanning system | Yuichi Kimura | 1989-07-25 |
| 4810076 | Selective shading device and an optical device using the same | Tsugio Murao, Kenichi Ikeda, Yoshitomi Nagaoka, Yasuo Nakajima | 1989-03-07 |
| 4792218 | Projection lens for high definition TV | Yasuo Nakajima, Yoshitomi Nagaoka | 1988-12-20 |
| 4767199 | Projection lens | Yasuo Nakajima, Shusuke Ono | 1988-08-30 |
| 4733953 | Color corrected projection lens | Yasuo Nakajima, Syusuke Ono | 1988-03-29 |
| 4704009 | Projection lens | Yoshito Miyatake, Yasuo Nakajima, Yoshitomi Nagaoka, Syusuke Ono | 1987-11-03 |
| 4690515 | Compact projection lens | Yasuo Nakajima, Yoshito Miyatake, Yoshitomi Nagaoka, Shusuke Ono | 1987-09-01 |
| 4615589 | Projection lens system for projection television apparatus | Yoshito Miyatake | 1986-10-07 |
| 4548480 | Projection lens apparatus | Yasuo Nakajima, Yoshitomi Nagaoka | 1985-10-22 |