Issued Patents All Time
Showing 76–100 of 132 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6101035 | Triplet lens system with diffractive lens features | — | 2000-08-08 |
| 6038089 | Beam shaping optical system | Junji Kamikubo | 2000-03-14 |
| 5991102 | Beam protecting device | Masahiro Oono, Masato Hara, Tunehiko Sonoda | 1999-11-23 |
| 5978140 | Method for designing diffractive lenses | — | 1999-11-02 |
| 5969862 | Chromatic aberration correcting element and its application | — | 1999-10-19 |
| 5965327 | Method for manufacturing a master die for a diffusion plate and diffusion manufactured by said method | Hiroshi Kuboya, Toshiharu Takahashi, Makoto Iki, Moriyasu Shirayanagi, Teruaki Hiyamuta +1 more | 1999-10-12 |
| 5930032 | UV image forming optical system and lens for UV radiation | Makoto Iwaki | 1999-07-27 |
| 5914822 | Chromatic aberration correcting element and its application | Masahiro Oono, Satoru Tachihara, Masato Noguchi, Tsuyoshi Ishikawa | 1999-06-22 |
| 5883744 | Chromatic aberration correcting element and its application | — | 1999-03-16 |
| 5838496 | Diffractive multi-focal objective lens | Junji Kamikubo | 1998-11-17 |
| 5838497 | Chromatic aberration correction element and its application | — | 1998-11-17 |
| 5825555 | Beam projecting apparatus | Masahiro Oono, Tunehiko Sonoda, Satoru Tachihara | 1998-10-20 |
| 5796520 | Chromatic aberration correcting element and its application | — | 1998-08-18 |
| 5768036 | Beam receiving position adjusting device | Toshio Nakagishi, Hitoshi Kimura, Masahiro Oono, Masato Noguchi | 1998-06-16 |
| 5745296 | Multibeam recording device | Tetsuya Nakamura, Takashi Iizuka | 1998-04-28 |
| 5733710 | Method for manufacturing a master die for a diffusion plate and diffusion plate manufactured by said method | Hiroshi Kuboya, Toshiharu Takahashi, Makoto Iki, Moriyasu Shirayanagi, Teruaki Hiyamuta +1 more | 1998-03-31 |
| 5701205 | Shiftable lens system | Sachio Hasushita, Shuji Yoneyama, Takayuki Ito | 1997-12-23 |
| 5664251 | Method of making an aperture plate for a multibeam pattern drawing apparatus | Satoru Tachihara, Tetsuya Nakamura, Takashi Okuyama, Tamihiro Miyoshi, Shinichi Suzuki | 1997-09-02 |
| 5657168 | Optical system of optical information recording/ reproducing apparatus | Makoto Iwaki | 1997-08-12 |
| 5657171 | Optical system of optical information recording/reproducing apparatus | Makoto Iwaki | 1997-08-12 |
| 5644437 | Optical system of optical information recording/reproducing apparatus | Makoto Iwaki | 1997-07-01 |
| 5642223 | Tilting lens system | Sachio Hasushita, Shuji Yoneyama, Takayuki Ito | 1997-06-24 |
| 5638221 | Optical system of optical information recording/reproducing apparatus | Makoto Iwaki | 1997-06-10 |
| 5633852 | Optical data recording and reproducing apparatus including chromatic aberration correction | Junji Kamikubo | 1997-05-27 |
| 5629799 | Chromatic aberration correcting element and its application | Masahiro Oono, Satoru Tachihara, Masato Noguchi, Tsuyoshi Ishikawa | 1997-05-13 |