Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4399960 | Magnetic tape cassette | — | 1983-08-23 |
| 4365769 | Magnetic tape cassette | — | 1982-12-28 |
| 4360173 | Magnetic tape cassette | — | 1982-11-23 |
| 4341358 | Hub for magnetic tape | — | 1982-07-27 |
| 4330068 | Three-piece structure magnetic tape cassette | — | 1982-05-18 |
| 4304374 | Tape cassette | Masatoshi Okamura, Haruo Shiba | 1981-12-08 |
| 4191345 | Tape cassette | Takateru Sato | 1980-03-04 |