Issued Patents All Time
Showing 25 most recent of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10657987 | Laser boost and duration optimization | Franklin P. Martens, Aaron Jacobs | 2020-05-19 |
| 10395673 | In-field laser calibration for heat-assisted magnetic recording head using temperature compensation equation | Franklin P. Martens, Drew Michael Mader, Steven J. Kimble, James E. Angelo | 2019-08-27 |
| 10152997 | Laser current calibration using preamplifier | Todd Michael Lammers, Thomas Lee Schick, Robert A. Matousek | 2018-12-11 |
| 10147453 | Laser boost and duration optimization | Franklin P. Martens, Aaron Jacobs | 2018-12-04 |
| 10127930 | In-field laser calibration for heat-assisted magnetic recording head using temperature compensation equation | Franklin P. Martens, Drew Michael Mader, Steven J. Kimble, James E. Angelo | 2018-11-13 |
| 10083716 | Laser calibration for heat-assisted magnetic recording head using interleaved laser current | Drew Michael Mader, Joshua Ward Christensen, Jason W. Riddering | 2018-09-25 |
| 10008231 | Shingled magnetic recording for writing tracks of variable track width | Steven Douglas Granz, Edward Charles Gage, Wenzhong Zhu | 2018-06-26 |
| 9997176 | Activating a magnetic writer to recover from read errors due to reader instability | Wenzhong Zhu, Jason Charles Jury | 2018-06-12 |
| 9978403 | Changing write coil current in response to reader instability | Wenzhong Zhu, Siew Kin Chow | 2018-05-22 |
| 9916850 | Laser bias current control | Robert A. Matousek, Todd Michael Lammers, Thomas Lee Schick, Wenzhong Zhu | 2018-03-13 |
| 9892752 | Selecting a maximum laser power for a calibration based on a previously measured function | Siew Kin Chow, Franklin P. Martens | 2018-02-13 |
| 9842619 | Selecting laser power based on writing to a set of consecutive user data wedges | Wenzhong Zhu, Tim Rausch | 2017-12-12 |
| 9734862 | Method and apparatus for writing test tracks on a magnetic recording medium | Wenzhong Zhu, Siew Kin Chow, Franklin P. Martens | 2017-08-15 |
| 9704519 | Sorting of HAMR read/write heads based on reader and writer widths | Wenzhong Zhu, Edward Charles Gage | 2017-07-11 |
| 9679597 | Bidirectional shingled magnetic recording in a heat-assisted magnetic recording device | Wenzhong Zhu | 2017-06-13 |
| 9653121 | Heat-assisted magnetic recording device capable of detecting head malfunction based on different currents of sensors | Wenzhong Zhu, Tim Rausch | 2017-05-16 |
| 9595288 | Laser mode hopping detection in a heat-assisted magnetic recording drive | Pu-Ling Lu, Franklin P. Martens, John W. Dykes | 2017-03-14 |
| 9589587 | Laser adjustment during field operation of a heat-assisted magnetic recording data storage device | Drew Michael Mader, Wenzhong Zhu, Michael A. Cordle | 2017-03-07 |
| 9548068 | Determining optical degradation in a heat-assisted read/write head | Tim Rausch, Drew Michael Mader | 2017-01-17 |
| 9508369 | Defining a maximum sequential write duration for a data storage device utilizing heat-assisted recording | Wenzhong Zhu | 2016-11-29 |
| 9502061 | Data storage device optimization based on adjacent track interference | Wenzhong Zhu, SiewKin Chow | 2016-11-22 |
| 9478248 | Adaptive HAMR laser power data storage device | Michael A. Cordle, Franklin P. Martens, Shawn Stephen Silewski, Tim Rausch | 2016-10-25 |
| 9396750 | Near-field transducer efficiency monitoring system | Kenneth A. Haapala, Paul William Burnett, Siew Kin Chow | 2016-07-19 |
| 9361920 | Compensation for track misalignment due to degradation of HAMR write head | Wenzhong Zhu, Franklin P. Martens, Kaizhong Gao, Edward Charles Gage | 2016-06-07 |
| 9349415 | Qualifying a recording head based on symmetry of a cross-track profile | Drew Michael Mader, Tim Rausch | 2016-05-24 |