Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5494365 | Tape cassette | Takamitsu Kawai | 1996-02-27 |
| 4983058 | Tape holding case | — | 1991-01-08 |
| 4922063 | Electric data switch that selects data by moving along tracks of electrodes | Seiji Shimizu | 1990-05-01 |