Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5172284 | Cassette loading mechanism for loading cassette with sliding shutter over tape opening of cassette with no shutter | — | 1992-12-15 |
| 5161079 | Tape cassette with slidable shutter | Akinobu Fujikawa | 1992-11-03 |
| 4262255 | Level indicating device | Akira Kokei, Koichi Sakai | 1981-04-14 |