Issued Patents 2011
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8057926 | Perpendicular magnetic recording medium | Kenji Ayama, Tokichiro Sato, Masafumi Ishiyama, Junichi Horikawa | 2011-11-15 |
| 8003237 | Perpendicular magnetic recording disk and manufacturing method thereof | Yoshiaki Sonobe, Kong-Kyeom Kim, Masaki Uemura | 2011-08-23 |
| 7983003 | Magnetic recording medium having soft magnetic layer and perpendicular magnetic recording layer | Yoshiaki Sonobe, Shinichi Ishibashi, Masato Kobayashi | 2011-07-19 |
| 7955723 | Magnetic recording medium substrate and perpendicular magnetic recording medium | Yoshiaki Sonobe, Kong-Kyeom Kim | 2011-06-07 |