Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5238753 | Magnetic recording medium kubbed with a super hard alloy blade containing tungsten carbide power and cobalt | Katsumi Ryoke, Youichi Hayata, Toshihiko Miura, Masaki Suzuki, Tatsuya Oguri | 1993-08-24 |