Issued Patents All Time
Showing 1–25 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10410657 | Data storage device employing nominal and adaptive multi-actuator decoupler | Jianguo Zhou, Masahito Kobayashi, Feng Hong, Hidehiko Numasato | 2019-09-10 |
| 9934803 | Data storage device attenuating multiple actuator coupling disturbance | Jeffrey J. Dobbek, Bryan Scott Rowan, Masahito Kobayashi, Kevin Tzou | 2018-04-03 |
| 9792938 | Data storage device communicating servo information between servo channels of multiple actuators | Masahito Kobayashi, Bryan Scott Rowan, Kevin Tzou, Gary Herbst | 2017-10-17 |
| 9412403 | Magnetic recording disk drive with position error signal (PES) blocks in the data tracks for compensation of track misregistration | Abhishek Dhanda, Toshiki Hirano, Satoshi Yamamoto | 2016-08-09 |
| 9349400 | Magnetic recording disk drive with adjustable data track pitch and compensation for repeatable runout (RRO) | Abhishek Dhanda, Toshiki Hirano, Satoshi Yamamoto | 2016-05-24 |
| 9324368 | Method and structure for improving performance and storage density in a data storage device | Abhishek Dhanda, Toshiki Hirano | 2016-04-26 |
| 9286926 | Two-dimensional magnetic recording (TDMR) disk drive with varying servo track pitch | Abhishek Dhanda, Toshiki Hirano, Gary Herbst | 2016-03-15 |
| 9025263 | Write current and fly height adjustment for compensating media coercivity variation | Abhishek Dhanda, Chris Gimenez, Toshiki Hirano | 2015-05-05 |
| 8953266 | Method and structure for improving performance and storage density in a data storage device | Abhishek Dhanda, Toshiki Hirano | 2015-02-10 |
| 8842507 | Heat-assisted magnetic recording disk drive (HAMR) with thermal sensor and laser power prediction | Toshiki Hirano, Lidu Huang, Barry Cushing Stipe | 2014-09-23 |
| 8817405 | Magnetic recording disk drive with frequency adjustment for misaligned servo patterns | Abhishek Dhanda, Toshiki Hirano | 2014-08-26 |
| 8737002 | Magnetic recording disk with patterned nondata islands with different sizes and opposite polarity and method for making the disk | Abhishek Dhanda, Michael Grobis, Toshiki Hirano | 2014-05-27 |
| 8724248 | Method and apparatus for compensating vibration by adjusting track pitch | Abhishek Dhanda, Toshiki Hirano, Zvonimir Z. Bandic | 2014-05-13 |
| 8699165 | Thermal read/write offset compensation | Lidu Huang, Fu-Ying Huang | 2014-04-15 |
| 8665549 | Method for creating burst magnitude servo patterns with unipolar bits on a magnetic media of a magnetic data recording system | Thomas R. Albrecht, Toshiki Hirano, Xiaotian Sun | 2014-03-04 |
| 8625231 | Adjusting VGA analog gain for misaligned servo sectors in a disk drive | Abhishek Dhanda, Toshiki Hirano | 2014-01-07 |
| 8379342 | Magnetic recording disk drive with rotational vibration compensation having adaptive optimization of vibration sensor gains | Fu-Ying Huang, Xiaotian Sun | 2013-02-19 |
| 8363348 | Patterned media with structured PES servo segments encoding local track position | Toshiki Hirano, Jeffrey S. Lille | 2013-01-29 |
| 7826170 | Apparatus and method for adjusting a feed-forward signal for seek control during a seek operation | — | 2010-11-02 |
| 7580217 | Disk drive with hybrid analog-digital acceleration feedforward control system and method for rejecting rotational vibration | Jirou Abe, Gaku Ikedo | 2009-08-25 |
| 7499243 | Disk drive with support structure for air dams and disk-vibration capacitive sensors | Toshiki Hirano, Matthew T. White | 2009-03-03 |
| 7486470 | Hard disk drive vibration cancellation using adaptive filter | — | 2009-02-03 |
| 7486469 | Minimizing a mechanical mode excitation utilizing a generated seek trajectory | — | 2009-02-03 |
| 7457076 | Head seek control method suppressing vibrations and rotatary recorder/reproducer | Hiroshi Uchida | 2008-11-25 |
| 7450335 | Reducing read/write head track misregistration | Toshiki Hirano, Matthew T. White | 2008-11-11 |