Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8021770 | Perpendicular magnetic recording medium | Hoo-san Lee, Sadayuki Watanabe, Shunji Takenoiri | 2011-09-20 |
| 8007931 | Magnetic recording medium | Hoo-san Lee, Chee-kheng Lim, Hoon-sang Oh | 2011-08-30 |