Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698336 | Magnetic recording medium | Minoru Hashimoto, Masahiro Fukasawa, Kazutaka Akiyama, Tsutomu Tanaka | 1997-12-16 |
| 5686137 | Method of providing hexagonal ferrite magnetic powder with enhanced coercive force stability | Etsuji Ogawa, Osamu Kubo, Shunji Kurisu | 1997-11-11 |