Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8021770 | Perpendicular magnetic recording medium | Sok-hyun Kong, Hoo-san Lee, Sadayuki Watanabe | 2011-09-20 |
| 7993764 | Perpendicular magnetic recording medium and the method of manufacturing the same | Yasushi Sakai | 2011-08-09 |