Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5242752 | Magnetic recording medium comprising a specified binder resin, specified ferromagnetic metal powder and .alpha.-alumina | Ryosuke Isobe, Noboru Koyama, Takahiro Mori | 1993-09-07 |
| 4789591 | Magnetic recording medium | Issei Nakamura | 1988-12-06 |
| 4748080 | Magnetic recording medium containing iron carbide | — | 1988-05-31 |
| 4572866 | Magnetic recording medium | Issei Nakamura | 1986-02-25 |
| 4572867 | Magnetic recording medium | Issei Nakamura | 1986-02-25 |