Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6400674 | Spindle motor holding structure for an optical disk drive | — | 2002-06-04 |
| 5859831 | Disk cartridge | Takashi Naito | 1999-01-12 |
| 5305299 | Support mechanism for optical block in optical disc drive apparatus | — | 1994-04-19 |
| 4972337 | Device for controlling rotation of a magnet used in a magneto-optical recording system | Naoya Eguchi, Osamu Kawakubo, Hitoshi Okada, Susumu Tosaka | 1990-11-20 |