Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7532424 | Method of writing pattern on media and data storage device | Fuminori Sai, Kohji Takasaki, Hiroshi Yanagisawa | 2009-05-12 |
| 7474485 | Magnetic disk medium, magnetic disk drive, and method for detecting rotational position of magnetic disk medium | Masashi Kisaka | 2009-01-06 |