Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855857 | Magnetic disc cartridge with spindle abutment plate | Tsuyoshi Ono | 1989-08-08 |
| 4809114 | Magnetic disc cartridge | — | 1989-02-28 |
| 4791516 | Cleaning liner in a magnetic disk cartridge | — | 1988-12-13 |
| 4742421 | Magnetic recording disc having tensioned and elastically-supported recording surface | Kengo Oishi | 1988-05-03 |
| 4324705 | Process for recovering materials from scrapped film | Kyoichi Naruo | 1982-04-13 |