Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9934803 | Data storage device attenuating multiple actuator coupling disturbance | Tetsuo Semba, Jeffrey J. Dobbek, Masahito Kobayashi, Kevin Tzou | 2018-04-03 |
| 9792938 | Data storage device communicating servo information between servo channels of multiple actuators | Masahito Kobayashi, Tetsuo Semba, Kevin Tzou, Gary Herbst | 2017-10-17 |
| 7957847 | Voltage regulating systems responsive to feed-forward information from deterministic loads | James Donaldson | 2011-06-07 |
| 7888902 | Adjustable voice coil motor driver | Farzin Assar, Scott E. Heeren, Lee D. Nguyentran | 2011-02-15 |
| 7595953 | Magnetic recording disk drive with switchable compensation for mechanical and electrical disturbances | Adrian E. Cerda, Amir Chaghajerdi | 2009-09-29 |
| 7486463 | Power disturbance compensation | Adrian E. Cerda, Amir Chaghajerdi, Pushkar Hingwe | 2009-02-03 |
| 7332832 | Removable hard disk drive (HDD) that is hot-plug compatible with multiple external power supply voltages | — | 2008-02-19 |
| 7309967 | Motor drive circuitry with regenerative braking for disk drive | Michael Moser, Mantle Man-Hon Yu | 2007-12-18 |
| 6560057 | Head positioning system for a disk drive during a power down condition | Erno H. Klaassen | 2003-05-06 |
| 6388832 | Method and system for providing spindle motor control for head loading in a disk drive | Jeffrey J. Dobbek, Louis J. Serrano, Mantle Man-Hon Yu | 2002-05-14 |
| 6362766 | Variable pulse PWM DAC method and apparatus | Louis J. Serrano, Mantle Man-Hon Yu | 2002-03-26 |
| 6262619 | Method and system for power amplifier offset nulling | Brooke McGreer | 2001-07-17 |
| 6181091 | Apparatus and method for control of a multi-pole brushless DC motor in the event of saturation detection | Scott E. Heeren | 2001-01-30 |
| 6067202 | Method and apparatus for controlling spindle motor commutation switching times in a disk drive | Mantle Man-Hon Yu | 2000-05-23 |
| 5986426 | Adaptive pulse width modulated motor control | — | 1999-11-16 |
| 5963393 | Servo-free velocity estimator for coil driven actuator arm in a data storage drive | Louis J. Serrano | 1999-10-05 |
| 5886489 | Apparatus and method for reducing spindle power and acoustic noise in a disk drive | Mantle Man-Hon Yu | 1999-03-23 |
| 5781363 | Servo-free velocity estimator for coil driven actuator arm in a data storage drive | Louis J. Serrano | 1998-07-14 |