Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8076013 | Magnetic recording medium, magnetic recording medium manufacturing method, and magnetic disk | Takahiro Onoue, Koichi Wago | 2011-12-13 |
| 8003237 | Perpendicular magnetic recording disk and manufacturing method thereof | Teiichiro Umezawa, Kong-Kyeom Kim, Masaki Uemura | 2011-08-23 |
| 7983003 | Magnetic recording medium having soft magnetic layer and perpendicular magnetic recording layer | Shinichi Ishibashi, Masato Kobayashi, Teiichiro Umezawa | 2011-07-19 |
| 7955723 | Magnetic recording medium substrate and perpendicular magnetic recording medium | Teiichiro Umezawa, Kong-Kyeom Kim | 2011-06-07 |