Issued Patents All Time
Showing 76–78 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4759979 | Magnetic recording medium | Hideaki Kosha | 1988-07-26 |
| 4729922 | Magnetic recording medium | Hideaki Kosha, Akihiro Matsufuji | 1988-03-08 |
| 4652500 | Magnetic recording medium | Shigeo Komine | 1987-03-24 |