Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6466597 | Semiconductor laser device | Yuzaburo Ban, Kenji Harafuji, Isao Kidoguchi, Satoshi Kamiyama, Ayumu Tsujimura +3 more | 2002-10-15 |
| 6420693 | Foreign object insertion detector device | Naohiro Nakatsuji, Morihiko Toyozumi, Yasuyo Matsumoto, Mitsutoshi Kamakura | 2002-07-16 |
| 6392979 | Optical pickup and optical disk apparatus using the same | Kazuhisa Yamamoto, Yasuo Kitaoka, Ayumu Tsujimura | 2002-05-21 |