Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10026429 | Perpendicular magnetic recording medium | Hoo-san Lee, Sadayuki Watanabe, Shunji Takenoiri | 2018-07-17 |
| 8889274 | Perpendicular magnetic recording layer with regions having different magnetic anisotropy constants | Seong-yong Yoon, Chee-kheng Lim, Hoo-san Lee, Hoon-sang Oh | 2014-11-18 |
| 8441754 | Servo pattern transfer | Hoo-san Lee, Sung-chul Lee | 2013-05-14 |
| 8415035 | Perpendicular magnetic recording medium | Hoo-san Lee, Hoon-sang Oh, Seong-yong Yoon | 2013-04-09 |
| 8361641 | Perpendicular magnetic recording layer with regions having different magnetic anisotropy constants | Seong-yong Yoon, Chee-kheng Lim, Hoo-san Lee, Hoon-sang Oh | 2013-01-29 |
| 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 |