Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8062778 | Magnetic recording disk and method for manufacture thereof | Koichi Shimokawa | 2011-11-22 |
| 7531485 | Method of producing a lubricant for a magnetic disk, lubricant for a magnetic disk, magnetic disk, and method of producing a magnetic disk | Kota Hara, Koichi Shimokawa | 2009-05-12 |