Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8159768 | Detecting a servo address mark (SAM) in a servo field sync-up operation | — | 2012-04-17 |
| 7688700 | Phase correction element and optical head device | Yoshiharu Ooi, Masahiro Murakawa, Hiromasa Sato | 2010-03-30 |
| 7492546 | Providing pre-determined servo position correction values for use during disk drive initialization | — | 2009-02-17 |
| 7388728 | System and method for writing servo sectors in a perpendicular media recording environment | Teddy T. C. Chen, Jinsheng Bill Jang, Jie Yu | 2008-06-17 |
| 7110208 | Method for improving servo performance in a disk drive having tracks with mini servo wedges | David D. Nguyen | 2006-09-19 |
| 6995941 | Method for improving head position determination in a disk drive | David D. Nguyen | 2006-02-07 |
| 6635155 | Method for preparing an optical thin film | Kazuhiko Mitarai, Satoru Takaki | 2003-10-21 |
| 5679473 | Magnetic recording medium and method for its production | Akihiro Murayama, Shinji Kondoh | 1997-10-21 |
| 5478661 | Magnetic recording medium and method for its production | Akihiro Murayama | 1995-12-26 |
| 4611121 | Magnet apparatus | Osamu Tsukakoshi, Yoshio Kamata, Shoji Aiba | 1986-09-09 |