Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5859829 | Disc apparatus for accepting a disc having at least one portion for preventing misinsertion | Yasuo Otsuka, Tohru Sasaki | 1999-01-12 |
| 5831967 | Cartridge for preventing misinsertion | Yasuo Otsuka, Tohru Sasaki | 1998-11-03 |
| 5612940 | Disc cartridge for receiving a disk and mechanism for preventing an incorrect insertion of a cartridge | Yasuo Otsuka, Tohru Sasaki | 1997-03-18 |
| 5606547 | Optical disc cartridge and mechanism for preventing an incorrect insertion of a cartridge | Yasuo Otsuka, Tohru Sasaki | 1997-02-25 |
| 5297133 | Optical disc cartridge and mechanism for preventing an incorrect insertion of a cartridge | Yasuo Otsuka, Tohru Sasaki | 1994-03-22 |