Park; Charles A.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Park; Charles A..The latest application filed is for "data storage device with history dependent write boost".

Company Profile

0.23.2

Park; Charles A. - Aromas CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Data Storage Device With History Dependent Write Boost App 20220246173 - Guo; Guoxiao ; et al.	2022-08-04
Data storage device with servo field dependent write boost Grant 11,200,912 - Guo , et al. December 14, 2	2021-12-14
Data storage device measuring reader/writer offset by reading spiral track and concentric servo sectors Grant 9,245,560 - Nie , et al. January 26, 2	2016-01-26
Data storage device attenuating interference from first spiral track when reading second spiral track Grant 9,208,810 - Nie , et al. December 8, 2	2015-12-08
Data storage device reading first spiral track while simultaneously writing second spiral track Grant 8,982,490 - Park , et al. March 17, 2	2015-03-17
Disk drive calibrating a velocity profile prior to writing a spiral track Grant 8,917,474 - Rigney , et al. December 23, 2	2014-12-23
Disk drive performing spiral scan of disk surface to detect residual data Grant 8,896,957 - Ng , et al. November 25, 2	2014-11-25
Data storage device initializing read signal gain to detect servo seed pattern Grant 8,891,191 - Park November 18, 2	2014-11-18
Disk drive servoing on first disk surface while erasing second disk surface Grant 8,861,123 - Ooi Huat Lye , et al. October 14, 2	2014-10-14
Servoing on zoned concentric servo sectors of a first disk surface to write a spiral servo track to a second disk surface Grant 8,743,504 - Bryant , et al. June 3, 2	2014-06-03
Disk drive employing overlapping servo zones to facilitate servo zone crossing Grant 8,724,245 - Smith , et al. May 13, 2	2014-05-13
Disk drive performing in-drive spiral track writing Grant 8,634,283 - Rigney , et al. January 21, 2	2014-01-21
Disk drive writing a sync mark seam in a bootstrap spiral track Grant 8,634,154 - Rigney , et al. January 21, 2	2014-01-21
Disk drive biasing timing recovery measurements for spiral tracks based on radial location of head Grant 8,498,076 - Sheh , et al. July 30, 2	2013-07-30
Spiral slope approximation of spiral patterns written to a disk of a disk drive Grant 7,852,592 - Liang , et al. December 14, 2	2010-12-14
Disk drive demodulating a spiral track by finding a maximum correlation between a spiral track crossing signal and a time-shifted nominal spiral track crossing signal Grant 7,656,604 - Liang , et al. February 2, 2	2010-02-02
Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer Grant 7,035,026 - Codilian , et al. April 25, 2	2006-04-25
Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer App 20050117240 - Codilian, Raffi ; et al.	2005-06-02
Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer Grant 6,885,514 - Codilian , et al. April 26, 2	2005-04-26

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