Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6920102 | Converging element, optical head, and apparatus and method of optically recording and reproducing information | Sadao Mizuno, Hiroaki Yamamoto, Hideki Hayashi, Jouji Anzai | 2005-07-19 |
| 6873588 | Converging element, optical head, and apparatus and method of optically recording and reproducing information | Sadao Mizuno, Hiroaki Yamamoto, Hideki Hayashi, Jouji Anzai | 2005-03-29 |
| 6859428 | Converging element, optical head, and apparatus and method of optically recording and reproducing information | Sadao Mizuno, Hiroaki Yamamoto, Hideki Hayashi, Jouji Anzai | 2005-02-22 |