Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7538965 | Method and apparatus for writing servo management information in a disk drive | Katsuki Ueda, Masahide Yatsu, Hideo Sado, Seiji Mizukoshi, Takuji Shimada +1 more | 2009-05-26 |
| 7457074 | Method and apparatus for correcting errors while writing spiral servo information in a disk drive | Hideo Sado, Masahide Yatsu, Seiji Mizukoshi, Takayuki Matsuzaki, Takuji Shimada | 2008-11-25 |
| 5187620 | Head position determination control apparatus of data recording/reproducing apparatus in a data surface servo system | Kenji Asai, Tomihisa Ogawa | 1993-02-16 |