Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5221459 | Method of manufacturing a magnetic disk substrate of titanium | Yoko Okano, Hiroyoshi Suenaga, Kenji Morita, Masanori Ohmura, Iwao Ida +1 more | 1993-06-22 |
| 5136819 | Method for mirror polishing of ti-made magnetic disk substrate | Masakuni Takagi, Hiroyoshi Takeuchi, Hideaki Fukai, Hiroyoshi Suenaga, Kuninori Minakawa | 1992-08-11 |
| 5131995 | Method of manufacturing titanium magnetic disk substrate | Hiroyoshi Suenaga, Hideaki Fukai, Kuninori Minakawa | 1992-07-21 |