Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6754157 | Recording and/or reproducing apparatus and recording and/or reproducing method capable of detecting a land pre-pit on disc securely at a high precision | — | 2004-06-22 |
| 6728178 | Semiconductor laser control method and semiconductor laser control device | Kenji Koishi, Yoshiyuki Miyabata, Makoto Usui, Kohjyu Konno, Yasuhiro Ueki +2 more | 2004-04-27 |
| 6700847 | Recording/reproducing apparatus and method using accurate recording/reproducing clock signal | — | 2004-03-02 |