Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6414926 | Optical disc drive | Shinichi Sugiyama | 2002-07-02 |
| 5508987 | Disk player having a system configuration for determining the diameter of loaded disks | Masanori Matsunaga, Takehiro Kataoka | 1996-04-16 |