Aromas, California
United States
21
2026-05-07
The entities that hold a legal rights for patent applications filed by inventor Park Charles A.:
Charles A. Park from Aromas, US has applied for patents for these inventions. The list has both pending applications and granted patents:
DATA STORAGE DEVICE WITH ASSISTIVE BURSTS IN SERVO SECTORS
#2 | 2025-07-15Preamplifier circuit for parallel self-servo write
#3 | 2025-07-15Servo interface circuitry for parallel self-servo write
#4 | 2025-07-15Parallel self-servo write circuitry in a data storage device
#5 | 2025-07-08Parallel self-servo write in a data storage device
#6 | 2022-08-04Data storage device with history dependent write boost
#7 | 2021-12-14Data storage device with servo field dependent write boost
#8 | 2016-01-26Data storage device measuring reader/writer offset by reading spiral track and concentric servo sectors
#9 | 2015-12-08Data storage device attenuating interference from first spiral track when reading second spiral track
#10 | 2015-03-17Data storage device reading first spiral track while simultaneously writing second spiral track
#11 | 2014-12-23Disk drive calibrating a velocity profile prior to writing a spiral track
#12 | 2014-11-25Disk drive performing spiral scan of disk surface to detect residual data
#13 | 2014-11-18Data storage device initializing read signal gain to detect servo seed pattern
#14 | 2014-10-14Disk drive servoing on first disk surface while erasing second disk surface
#15 | 2014-06-03Servoing on zoned concentric servo sectors of a first disk surface to write a spiral servo track to a second disk surface
#16 | 2014-05-13Disk drive employing overlapping servo zones to facilitate servo zone crossing
#17 | 2013-07-30Disk drive biasing timing recovery measurements for spiral tracks based on radial location of head
#18 | 2010-12-14Spiral slope approximation of spiral patterns written to a disk of a disk drive
#19 | 2010-02-02Disk 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
#20 | 2005-06-02Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer
#21 | 2005-04-26Method of manufacturing and disk drive produced by measuring the read and write widths and varying the track pitch in the servo-writer
4852390 ⎘