Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7573669 | Method and apparatus for writing pattern on disk | Manabu Saikawa, Atsushi Takeichi | 2009-08-11 |
| 7518814 | Magnetic head tester and method of manufacturing magnetic disk drive | Hiroshi Umezaki, Norifumi Miyamoto, Takehiko Hamaguchi, Kenji Itoh | 2009-04-14 |
| 7423825 | Disk unit and manufacturing method thereof | Naoki Shimamura, Osama Takazawa, Kaoru Umemura | 2008-09-09 |
| 7271974 | Method of self servo write with low density gas | Hiroshi Fukuyama, Kensuke Ishiwata, Kanji Nakao, Kazuya Takeda | 2007-09-18 |