Issued Patents All Time
Showing 26–50 of 132 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7430159 | Optical pick-up and objective lens for use with different types of optical discs | Daisuke Koreeda | 2008-09-30 |
| 7414948 | Objective lens | Daisuke Koreeda, Shuichi Takeuchi | 2008-08-19 |
| 7339876 | Optical system of optical pick-up | Kenzo Yamanaka, Shuichi Takeuchi | 2008-03-04 |
| 7280276 | Objective lens | Daisuke Koreeda, Shuichi Takeuchi, Naohito Sasaki | 2007-10-09 |
| 7239598 | Objective lens for optical pick-up | Daisuke Koreeda | 2007-07-03 |
| 7224662 | Objective lens for optical pickup | Shuichi Takeuchi, Daisuke Koreeda | 2007-05-29 |
| 7158468 | Optical system for optical head | Shuichi Takeuchi | 2007-01-02 |
| 7106525 | Objective lens for optical pick-up | Shuichi Takeuchi | 2006-09-12 |
| 7054254 | High NA objective lens for optical pick-up | — | 2006-05-30 |
| 7038862 | Objective lens for optical pick-up | Daisuke Koreeda | 2006-05-02 |
| 7035193 | Objective lens for optical disc | Shuichi Takeuchi, Daisuke Koreeda | 2006-04-25 |
| 6982838 | Objective lens for optical pick-up | Daisuke Koreeda | 2006-01-03 |
| 6900949 | Optical system of optical pick-up | Shuichi Takeuchi, Daisuke Koreeda | 2005-05-31 |
| 6898024 | Optical system for optical pickup employing coma compensating element | Shuichi Takeuchi, Takeshi Shimano | 2005-05-24 |
| 6873590 | Objective lens for optical pick-up | Shuichi Takeuchi | 2005-03-29 |
| 6822800 | Objective lens for optical pickup | Daisuke Koreeda | 2004-11-23 |
| 6819504 | High NA objective lens for optical pick-up | — | 2004-11-16 |
| 6807019 | Objective lens having diffractive structure for optical pick-up | Shuichi Takeuchi | 2004-10-19 |
| 6807018 | Objective lens for optical pick-up | Takashi Yamanouchi | 2004-10-19 |
| 6791934 | Objective lens optical system, optical head and optical information reproduction apparatus | Takeshi Shimano, Tetsuo Ariyoshi, Kazuo Shigematsu, Shuichi Takeuchi | 2004-09-14 |
| 6791932 | Optical system of optical pick-up | — | 2004-09-14 |
| 6785215 | Astigmatic objective lens for optical head | Takashi Yamanouchi | 2004-08-31 |
| 6785203 | Optical lens for optical disc drive with aberration suppression for recording/reproducing for a plurality of optical disc types | Takeshi Shimano, Shigeru Nakamura, Akira Arimoto, Kazuo Shigematsu | 2004-08-31 |
| 6781764 | Objective lens for optical pick-up | Shuichi Takeuchi | 2004-08-24 |
| 6775064 | Objective lens for optical pick-up | — | 2004-08-10 |