Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7206158 | Disk drive for quickly retracting head to retract area, and emergency head-unload control circuit for use in the disk drive | — | 2007-04-17 |
| 7019939 | Apparatus and method for positioning head at target position on disk | Koji Yaegashi | 2006-03-28 |
| 6922302 | Calibration method for use in head loading/unloading type disk apparatus | Hidetoshi Kawachi | 2005-07-26 |
| 6894862 | Servo system with learning function for achieving servo compensation in a disk drive | — | 2005-05-17 |
| 6765746 | Method and apparatus employed in disk drive for retracting head when power supply has been interrupted | — | 2004-07-20 |
| 6765742 | Disk storage apparatus and head load control method | — | 2004-07-20 |
| 6760183 | Servo system with runout compensation for disk drive | — | 2004-07-06 |
| 6661598 | Calibration method for use in head loading/unloading type disk apparatus | Hidetoshi Kawachi | 2003-12-09 |
| 6650499 | Servo system with learning function for achieving servo compensation in a disk drive | — | 2003-11-18 |
| 6594102 | Apparatus and method for retracting the head on power down in a disk drive | Hiroyuki Kanda, Koji Osafune | 2003-07-15 |
| 6496319 | Calibration method for use in head loading/unloading type disk apparatus | Hidetoshi Kawachi | 2002-12-17 |
| 6175465 | Head positioning control system for use in a disk storage drive | Hidetoshi Kawachi, Masahide Yatsu | 2001-01-16 |
| 5801897 | Head positioning control system for use in a disk storage system | Hiroyuki Kanda, Masahide Yatsu | 1998-09-01 |