Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7652963 | Circuit for detecting recorded area | — | 2010-01-26 |
| 6717968 | Laser drive device | Kenichi Tatehara, Toshiya Akagi | 2004-04-06 |
| 6490301 | Laser drive device | Kenichi Tatehara, Toshiya Akagi | 2002-12-03 |
| 6339579 | Semiconductor laser diode driving device and driving method | Yuichi Kamioka, Kenji Koishi, Yoshiyuki Miyabata, Naoyuki Nakamura, Kenichi Tatehara +1 more | 2002-01-15 |