Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6912190 | Optical disc apparatus and method for reading information from an optical disk having tracks and spaces between the tracks on which address information is recorded | Chikashi Inokuchi, Kenji Koishi, Yutaka Osada, Mitsuhiko Oohta, Takashi Kawai | 2005-06-28 |
| 6728178 | Semiconductor laser control method and semiconductor laser control device | Kenji Koishi, Yoshiyuki Miyabata, Makoto Usui, Yasuhiro Ueki, Tomonori Ueno +2 more | 2004-04-27 |
| 6657935 | Method and apparatus for recording information on recording medium | Hideharu Eguchi, Yasuhiro Ueki, Osamu Yanagisawa, Yutaka Osada, Kenji Koishi +2 more | 2003-12-02 |
| 6490302 | Semiconductor laser control circuit and laser light source | Kenji Koishi | 2002-12-03 |
| 6456573 | Information recording and reproducing apparatus | Yasuhiro Ueki, Yutaka Osada, Osamu Yanagisawa, Chikashi Inokuchi, Yuuichi Kamioka | 2002-09-24 |