Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4959744 | Shutter assembled disc cartridge | Yasunori Kanazawa, Tadahiro Kuwa, Nobuyuki Fujimoto, Shinichi Abe | 1990-09-25 |
| 4811151 | Shutter assembled disc cartridge | Yasunori Kanazawa, Tadahiro Kuwa, Nobuyuki Fujimoto, Shinichi Abe | 1989-03-07 |
| 4740948 | Disc cartridge | Seiichi Matsushima, Yasunori Kanazawa, Mitsuyoshi Koyama, Shinichi Abe, Nobuyuki Fujimoto | 1988-04-26 |