Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6768708 | Signal recording apparatus | Takao Terashima, Tomohiro Yamada | 2004-07-27 |
| 6588010 | Computer system and method of modifying program in the computer system | — | 2003-07-01 |
| 6226242 | Disk recording of playback device and method of controlling pickup of the device | — | 2001-05-01 |
| 6175538 | Disk recording or playback device and method of adjusting initial position of pickup thereof | — | 2001-01-16 |
| 6172949 | Disk recording or playback device and method of adjusting initial position of pickup thereof | — | 2001-01-09 |
| 6002654 | Method and apparatus for disk reproduction, disk and cards used for disk reproduction apparatus | Masanao Yoshida, Tokuo Yokota | 1999-12-14 |
| 5943303 | Disk playback device and method of controlling the device | Tadahiro Mitani, Keiji Hirao, Masanao Yoshida | 1999-08-24 |
| 5892738 | Disk recording-playback device and disk loading or unloading method | Keiji Hirao, Tadahiro Mitani, Masanao Yoshida | 1999-04-06 |
| 5781515 | Disk information reproduction apparatus and method using avoid band control signals | Masanao Yoshida, Tokuo Yokota | 1998-07-14 |
| 5721715 | Control system for disc playing device | Tadahiro Mitani, Keiji Hirao, Masanao Yoshida | 1998-02-24 |
| 5671196 | Method for controlling a rotatable optical disk storing magazine | Masanao Yoshida, Tadahiro Mitani, Keiji Hirao | 1997-09-23 |
| 5218592 | Disc player | Taizo Isshiki, Yukiyasu Tsuruta, Tsuneharu Tamatani, Masanao Yoshida | 1993-06-08 |
| 5073805 | Semiconductor light emitting device including a hole barrier contiguous to an active layer | Yoshinori Nomura | 1991-12-17 |