Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7531251 | Magnetic recording medium | Kazuhiko Suzuki, Ryoichi Hiratsuka, Hidetoshi Honda | 2009-05-12 |
| 7449221 | Metallic thin film type magnetic recording medium and method of manufacturing thereof | Ryoichi Hiratsuka, Kasumi Suzuki, Tomoe Ozaki | 2008-11-11 |
| 7214436 | Magnetic recording medium and process for producing same | Ryoichi Hiratsuka, Tomoe Ozaki, Taketoshi Sato, Miho Abiko, Kasumi Suzuki | 2007-05-08 |
| 7070871 | Metallic thin film type magnetic recording medium and method of manufacturing thereof | Ryoichi Hiratsuka, Kasumi Suzuki, Tomoe Ozaki | 2006-07-04 |