Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4455642 | Case for accommodating a rotary recording medium | — | 1984-06-19 |
| 4436201 | Disc cartridge having a detachable lid | — | 1984-03-13 |
| 4327831 | Disk record container | Toshiro Okada | 1982-05-04 |