Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6946191 | Magnetic recording medium | Takashi Morikawa, Hiroshi Tomiyasu, Masafumi Ishiyama | 2005-09-20 |
| 6916558 | Magnetic disk using a glass substrate | Hiroshi Tomiyasu, Keiji Moroishi | 2005-07-12 |