Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7450335 | Reducing read/write head track misregistration | Toshiki Hirano, Matthew T. White | 2008-11-11 |
| 7375916 | Magnetic recording disk drive with multiple feedforward controllers for rotational vibration cancellation | Matthew T. White, Kevin Tzou | 2008-05-20 |
| 7345841 | Disk drive using a disturbance sensor for disturbance frequency-identification and suppression | Eric Baugh, Matthew T. White | 2008-03-18 |
| 7292407 | Disk drive with support structure for disk-vibration capacitive sensors | Toshiki Hirano, Matthew T. White | 2007-11-06 |
| 7277258 | Dual-stage actuator disk drive with optimal location of the movable portion of the secondary actuator | Toshiki Hirano, Fu-Ying Huang, Matthew T. White | 2007-10-02 |
| 7268968 | Vibration suppression for servo control | Matthew T. White, Eric Baugh | 2007-09-11 |
| 7206162 | Seek trajectory generation using adaptive filtering | Matthew T. White, Hiroshi Uchida | 2007-04-17 |
| 7177113 | Magnetic recording disk drive with switchable rotational vibration cancellation | Matthew T. White, Kevin Tzou | 2007-02-13 |
| 7145746 | Disk drive with adaptive control of periodic disturbances | Toshiki Hirano, Fu-Ying Huang | 2006-12-05 |
| 7133229 | Magnetic recording disk drive with patterned media and compensation for write-clock timing error caused by rotational disturbances | — | 2006-11-07 |
| 7126784 | Concurrent data recording and reproducing method, seek operation control method and magnetic disk drive using the methods | Tetsuya Tamura, Hiroshi Uchida | 2006-10-24 |
| 7079339 | Dual-stage actuator disk drive with method for secondary-actuator failure detection and recovery using a relative-position sensor while track following | Matthew T. White, Satoshi Yamamoto | 2006-07-18 |
| 7079338 | Dual-stage actuator disk drive with method for secondary-actuator failure detection and recovery while track-following | Matthew T. White, Satoshi Yamamoto | 2006-07-18 |
| 7035034 | Data storage device, control device, off-track control method, and control method | Naoyuki Kagami, Akira Tokizono, Gaku Ikedo | 2006-04-25 |
| 7012777 | Disk drive with capacitance sensing of disk vibration and feedforward control for removal of read/write head track misregistration | Toshiki Hirano, Matthew T. White | 2006-03-14 |
| 7010653 | Data storage device, command queue re-ordering method, and data processing method and program | Hiroshi Uchida, Tomoyuki Oyama | 2006-03-07 |
| 6831809 | Rotary recording apparatus and method of controlling the apparatus | Naoyuki Kagami, Kenji Okada, Akira Tokizono, Hiroshi Uchida, Akinori Yuba | 2004-12-14 |
| 6614613 | Phase technique for active damping in a servo-controlled actuator | Fu-Ying Huang, Naoyuki Kagami, Eiji Soga, Shingo Tsuda | 2003-09-02 |
| 6219196 | Method and apparatus for suppressing mechanical resonance in a disk drive storage device using a notch filter | Naoyuki Kagami, Akira Tokizono | 2001-04-17 |
| 6052345 | System for compensating for hard sector noise degradation of tracking error signals in an optical data storage system | Allen Keith Bates, Nhan X. Bui, Alan A. Fennema | 2000-04-18 |
| 5936919 | System for compensating for hard sector noise degradation of tracking error signals in an optical data storage system | Allen Keith Bates, Nhan X. Bui, Alan A. Fennema | 1999-08-10 |
| 5768228 | Method and sytem for cancelling optical servo crosstalk in optical disk drives | Allen Keith Bates, Alan A. Fennema | 1998-06-16 |
| 5760991 | Disk storage unit positioning control for applying DC offsets to a tracking error | — | 1998-06-02 |
| 5504726 | Method and apparatus for calibrating focus and tracking error signals in an optical drive with measuring offsets during track jumps | — | 1996-04-02 |
| 5323368 | Track crossing apparatus and method using the difference between pick-up velocity and a predetermined velocity | — | 1994-06-21 |