Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5422774 | Magnetic tape cassette having improved slider lock | Shigeru Nishiyama | 1995-06-06 |
| 4785369 | Shutter for magnetic disk cartridge | Kengo Oishi | 1988-11-15 |
| 4743993 | Plate spring assembly for a magnetic recording disk cartridge | Kengo Oishi | 1988-05-10 |
| 4694370 | Magnetic disk cartridge | Kengo Oishi | 1987-09-15 |