Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7020059 | Adjustment optical disc for optical pick-up, adjustment method for optical pick-up, and adjustment apparatus for optical pick-up | Yasuo Osada, Hideo Nagasaka, Shuichi Hirosawa, Yoshihiro Kajiyama | 2006-03-28 |
| 7012868 | Adjustment optical disc for optical pick-up, adjustment method for optical pick-up, and adjustment apparatus for optical pick-up | Yasuo Osada, Hideo Nagasaka, Shuichi Hirosawa, Yoshihiro Kajiyama | 2006-03-14 |
| 7006410 | Optical disk for adjusting optical pickup, method for adjusting optical pickup, and device for adjusting optical pickup | Yasuo Osada, Hideo Nagasaka, Shuichi Hirosawa, Yoshihiro Kajiyama | 2006-02-28 |
| 6430143 | Optical pickup device and optical disc recording and/or reproducing apparatus | Yoshihiro Kajiyama, Yasuo Osada, Toshiyuki Kuroiwa, Hideo Nagasaka, Kaneshiro Kondo +5 more | 2002-08-06 |
| 6396794 | Disc recording and/or reproducing devices with disc exchanging function | Tàkashi Tsugami, Akihisa Inatani | 2002-05-28 |
| 6118618 | Disk cartridge loading device for recording and/or reproducing apparatus | — | 2000-09-12 |
| 5384760 | Disk changer player with stocker between loading/unloading position and reproducing unit | — | 1995-01-24 |
| 5301177 | Device for simultaneously loading two different kinds of recording media | — | 1994-04-05 |