Issued Patents All Time
Showing 51–75 of 132 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6760295 | Optical pick-up | — | 2004-07-06 |
| 6741402 | Objective lens for optical head | Shuichi Takeuchi | 2004-05-25 |
| 6741539 | Optical system for optical head | — | 2004-05-25 |
| 6667943 | Optical disc apparatus | Hisashi Konno, Suguru Takishima, Wataru Kubo, Hiroshi Nishikawa, Hiroshi Yamamoto | 2003-12-23 |
| 6654184 | Method for designing diffractive lens | — | 2003-11-25 |
| 6624941 | Diffraction optical element | Shuichi Takeuchi | 2003-09-23 |
| 6624942 | Objective lens for optical pick-up | Shuichi Takeuchi | 2003-09-23 |
| 6597401 | Image reading system with flare compensation | — | 2003-07-22 |
| 6594222 | Objective lens for optical pick-up | — | 2003-07-15 |
| 6560034 | Beam shaping optical system | Junji Kamikubo | 2003-05-06 |
| 6545807 | Refractive-diffractive hybrid lens | — | 2003-04-08 |
| 6487161 | Objective lens and optical head for optical disc drive | Shigeru Nakamura | 2002-11-26 |
| 6480344 | Objective lens for optical pick-up | — | 2002-11-12 |
| 6477129 | Optical disc drive | Takeshi Shimano, Shigeru Nakamura, Akira Arimoto, Kazuo Shigematsu | 2002-11-05 |
| 6473387 | Optical disc apparatus | Takashi Yamanouchi | 2002-10-29 |
| 6357811 | Coupling structure of threaded member and synthetic resin part for vehicle | Michio Nakamura, Tsutomu Takeuchi, Kenichi Hasegawa | 2002-03-19 |
| 6344935 | Optical system of optical pick-up | — | 2002-02-05 |
| 6282031 | Beam shaping optical system | Junji Kamikubo | 2001-08-28 |
| 6226123 | Optical system for observing equipment having image-vibration compensation system | Moriyasu Kanai | 2001-05-01 |
| 6221561 | Diffusion plate and method for manufacturing master die thereof | Hiroshi Kuboya, Toshiharu Takahashi, Makoto Iki, Moriyasu Shirayanagi, Teruaki Hiyamuta +1 more | 2001-04-24 |
| 6191889 | Objective lens for optical pick-up | — | 2001-02-20 |
| 6130785 | Eyepiece lens system | Tetsuya Abe | 2000-10-10 |
| 6118597 | Chromatic aberration correcting element and its application | — | 2000-09-12 |
| 6118594 | Objective lens for optical pick-up | — | 2000-09-12 |
| 6115175 | UV image forming optical system | Makoto Iwaki, Syunitirou Wakamiya, Shigeo Kubota, Hiroshi Suganuma, Minoru Takeda | 2000-09-05 |