| 12266385 |
Data storage device having dual actuators and method for emergency power off retract (EPOR) of dual actuators |
Brian Johnson, Jaesoo Byoun, Gaku Ikedo, Hideaki Ito, Hiroki Watanabe |
2025-04-01 |
|
| 12254909 |
VCM PWM to linear mode transition offset optimization to improve PES |
Jaesoo Byoun, Brian Johnson, Hideaki Ito, Gaku Ikedo |
2025-03-18 |
|
| 11978482 |
Data storage device with closed loop extended park mode during spin down operation |
Brian Johnson, Jaesoo Byoun, Gaku Ikedo, Hideaki Ito |
2024-05-07 |
$16,486,000 |
| 11948603 |
Optimize power, RTV, and coupled PES during seek operations |
Brian Johnson, Jaesoo Byoun, Gaku Ikedo, Hideaki Ito, Yasunori Fukuyama |
2024-04-02 |
$38,332,000 |
| 11862202 |
Data storage device with smart ISOFET threshold voltage automatic tuning |
Brian Johnson, Jaesoo Byoun, Hideaki Ito, Gaku Ikedo |
2024-01-02 |
$11,123,000 |
| 11837264 |
Data storage device having dual actuators and method for data egress throttling during emergency power off retract (EPOR) |
Brian Johnson, Jaesoo Byoun, Gaku Ikedo, Hideaki Ito, Hiroki Watanabe |
2023-12-05 |
$9,808,000 |
| 11823710 |
Dual spindle motors and dual spindle motor control for data storage |
Jaesoo Byoun, Brian Johnson, Gaku Ikedo, Hideaki Ito |
2023-11-21 |
$18,044,000 |
| 11763843 |
VCM PWM to linear mode transition offset optimization to improve PES |
Jaesoo Byoun, Brian Johnson, Hideaki Ito, Gaku Ikedo |
2023-09-19 |
$12,644,000 |
| 11763844 |
Data storage device having dual actuators and method for emergency power off retract (EPOR) of dual actuators |
Brian Johnson, Jaesoo Byoun, Gaku Ikedo, Hideaki Ito, Hiroki Watanabe |
2023-09-19 |
$12,644,000 |
| 11749303 |
Data storage device with soft on-disk activation of fine actuators |
Jaesoo Byoun, Brian Johnson, Gaku Ikedo, Hideaki Ito |
2023-09-05 |
$14,700,000 |
| 11373678 |
Data storage device using windowed delta-sigma analog-to-digital converter in digital current control loop |
Jaesoo Byoun, Gaku Ikedo |
2022-06-28 |
$10,229,000 |
| 11043243 |
Calibrating elevator actuator for disk drive |
Kexiu Liu, Kuang-Yang Tu, Jenghung Chen, Gaku Ikedo |
2021-06-22 |
$28,673,000 |
| 10996740 |
Write data protection at emergency power off |
Hiroki Watanabe, Gaku Ikedo, James Jinshi Ng, Brian K. Tanner |
2021-05-04 |
$12,304,000 |
| 10635158 |
Write data protection at emergency power off |
Hiroki Watanabe, Gaku Ikedo, James Jinshi Ng, Brian K. Tanner |
2020-04-28 |
$4,794,000 |
| 7035034 |
Data storage device, control device, off-track control method, and control method |
Tetsuo Semba, Akira Tokizono, Gaku Ikedo |
2006-04-25 |
$9,745,000 |
| 7019921 |
Control method and apparatus for reducing the effects of hard disk contamination |
Masayuki Kanamaru, Shunichiroh Ohta, Akira Tokizono, Toshihiko Tsunokawa |
2006-03-28 |
$141,000 |
| 6961202 |
Data storage device having acceleration sensor attached to circuit board for detecting vibrations in planar rotation direction along circuit board |
Gaku Ikedo, Mirei Hosono, Yoshitaka Kakizaki |
2005-11-01 |
$153,000 |
| 6937408 |
Rotation recording apparatus and method of inspection thereof |
Ryoheita Hattori, Tetesuya Kokubo, Nobuya Matsubara, Kaoru Umemura |
2005-08-30 |
$67,000 |
| 6937422 |
Self-monitoring and self-healing of frequency specific position errors in a data storage device |
Hien Dang, Mirei Hosono, Kenji Okada, Arun Sharma, Gordon James Smith +1 more |
2005-08-30 |
$67,000 |
| 6831809 |
Rotary recording apparatus and method of controlling the apparatus |
Kenji Okada, Tetsuo Semba, Akira Tokizono, Hiroshi Uchida, Akinori Yuba |
2004-12-14 |
$7,399,000 |
| 6754019 |
System and method for implementing a rotary memory device |
Akira Tokizono, Hiroshi Uchida, Takashi Kuroda |
2004-06-22 |
$211,000 |
| 6707634 |
Control method and apparatus for reducing the effects of hard disk contamination |
Masayuki Kanamaru, Shunichiroh Ohta, Akira Tokizono, Toshihiko Tsunokawa |
2004-03-16 |
$256,000 |
| 6690537 |
Method and system for controlling the positioning of a read/write head of a data recording device |
Akira Tokizono, Hiroshi Uchida |
2004-02-10 |
$322,000 |
| 6678109 |
Disk drive, servo control unit, and control unit |
Masayuki Murakami, Yuzo Nakagawa, Tatsuya Sakai |
2004-01-13 |
$223,000 |
| 6614613 |
Phase technique for active damping in a servo-controlled actuator |
Fu-Ying Huang, Tetsuo Semba, Eiji Soga, Shingo Tsuda |
2003-09-02 |
$11,479,000 |
