Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE39952 | Laser power controller and optical disk device | Chikashi Inokuchi, Shigeru Furumiya, Yuji Hisakado, Atsushi Miyazaki, Toshiya Akagi | 2007-12-25 |
| 6930968 | Semiconductor laser driving apparatus with filter to attenuate enhanced frequency component and optical disk apparatus including the same | Yuichi Kamioka, Toshiya Akagi, Yuichi Takahashi | 2005-08-16 |
| 6728178 | Semiconductor laser control method and semiconductor laser control device | Kenji Koishi, Makoto Usui, Kohjyu Konno, Yasuhiro Ueki, Tomonori Ueno +2 more | 2004-04-27 |
| 6671248 | Apparatus and method of controlling laser power | Toshiya Akagi | 2003-12-30 |
| 6621779 | Laser power controller and optical disk device | Chikashi Inokuchi, Shigeru Furumiya, Yuji Hisakado, Atsushi Miyazaki, Toshiya Akagi | 2003-09-16 |
| 6408013 | Semiconductor laser control method and semiconductor laser control apparatus | Toshiya Akagi | 2002-06-18 |
| 6339579 | Semiconductor laser diode driving device and driving method | Yuichi Kamioka, Kenji Koishi, Naoyuki Nakamura, Kenichi Tatehara, Ikuo Hidaka +1 more | 2002-01-15 |
| 5930225 | Two-layer optical disk | Takashi Ishida, Mamoru Shoji, Shunji Ohara, Shinichi Konishi, Yoshito Aoki +2 more | 1999-07-27 |
| 5729525 | Two-layer optical disk | Takashi Ishida, Mamoru Shoji, Shunji Ohara, Shinichi Konishi, Yoshito Aoki +2 more | 1998-03-17 |
| 5418574 | Video signal correction apparatus which detects leading and trailing edges to define boundaries between colors and corrects for bleeding | Hiroshi Onishi | 1995-05-23 |