Issued Patents All Time
Showing 1–25 of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9024605 | Power supply device including a second DC power supply in its load circuit | Nobuhiro Kihara, Toru Daigo | 2015-05-05 |
| 8737010 | Servo control of a disk drive | Hiroshi Uchida, Chikako Sakagami, Kazuhisa Shishida | 2014-05-27 |
| 8553348 | Disk drive and servo-control method therefor | Kazuhisa Shishida, Chikako Sakagami, Katsuhiko Ohta, Kenji Okada | 2013-10-08 |
| 8503124 | Head servo control system and head servo control method | Hiroshi Uchida, Tetsuo Ueda, Chikako Sasaki, Masahito Nitta | 2013-08-06 |
| 8059356 | Disk drive and method for head servo control of the disk drive | Chikako Sakagami, Kazuhisa Shishida, Kazuaki Usui, Hiroshi Uchida, Takeshi Saito +2 more | 2011-11-15 |
| 7808739 | Disk drive device and servo control method thereof | Kohji Takasaki, Nobuhiko Wasa, Yasuhiro Iihara | 2010-10-05 |
| 7724457 | Method and system for time-shift based rotational vibration sensing in disk drives | Hien Dang, Tetsuo Ueda, Yuzo Nakagawa, Sri M. Sri-Jayantha | 2010-05-25 |
| 7675701 | Method and apparatus for detecting servo timing marks in a magnetic disk system | Hideki Ohzeki, Noboru YOSHIDA, Kazuyuki Ishibashi, Tetsuo Ueda, Toshiaki Wada | 2010-03-09 |
| 7619849 | Magnetic disk drive with controlled transducer movement during a seek | Hiroshi Uchida, Hideki Ohzeki | 2009-11-17 |
| 7595955 | Disk drive device and method for error recovery procedure therefor | Mirei Hosono, Kazunari Tsuchimoto, Hideki Ohzeki, Tetsuo Ueda, Kazuyuki Ishibashi +1 more | 2009-09-29 |
| 7558017 | Magnetic disk drive and a loading/unloading method | Kazuyuki Ishibashi, Takeshi Chawanya, Hiroshi Uchida | 2009-07-07 |
| 7474490 | Disk drive with reduced vibration due to rotational acceleration of a spindle motor | Yukiko Hayashi, Gaku Ikedo, Nobuhisa Koide, Yuhji Amari | 2009-01-06 |
| 7271976 | Magnetic disk drive and method for seek operations with reduced noise | Satoshi Ishii, Tetsuo Ueda | 2007-09-18 |
| 7209311 | Data storage device and control method therefor to prevent off-track writing | Tetsuo Ueda, Hideki Ohzeki, Naoyuki Minami | 2007-04-24 |
| 7145307 | Data storage apparatus and control method thereof with compensation | Mirei Hosono | 2006-12-05 |
| 7141951 | Data storage apparatus with compensation for vibration and control method thereof | Mirei Hosono | 2006-11-28 |
| 6947243 | Method and system for time-shift based rotational vibration sensing in disk drives | Hien Dang, Tetsuo Ueda, Yuzo Nakagawa, Sri M. Sri-Jayantha | 2005-09-20 |
| 6898046 | Method and system for rotational velocity-based algorithm for vibration compensation in disk drives | Sri M. Sri-Jayantha, Hien Dang, Arun Sharma | 2005-05-24 |
| 6798606 | Position error signal linearization calibration | Yifan Tang, Craig Fukushima, Hiroshi Uchida | 2004-09-28 |
| 6567230 | Method and system for performing positioning control of a head actuator in a disk device utilizing a digital filter | Naoyuki Kagami, Akira Tokizono, Sri M. Sri-Jayantha, Tatsuya Sakai, Hien Dang +1 more | 2003-05-20 |
| 6549349 | Adaptive vibration control for servo systems in data storage devices | Sri M. Sri-Jayantha, Arun Sharma, Hien Dang, Naoyuki Kagami, Yuzo Nakagawa +1 more | 2003-04-15 |
| 6532129 | Method and apparatus for sustaining feedback filter state having periodic output | Sri M. Sri-Jayantha, Hien Dang, Arun Sharma, Nobuyuki Kitazaki | 2003-03-11 |
| 6515813 | Method for controlling servo information detection timing and rotational speed of disk, and disk drive | Nobuyuki Kitazaki, Kenji Ogasawara, Yutaka Ozawa | 2003-02-04 |
| 6353625 | Array type laser diode | — | 2002-03-05 |
| 6345366 | Method and device for error recovery | Hideo Asano, Hiroaki Suzuki, Tatsuya Endo, Kazuyuki Kobayashi, Haruo Andoh | 2002-02-05 |