Sheh; Edgar D.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Sheh; Edgar D..The latest application filed is for "data storage device employing triangle-like dither to spread track squeeze".

Company Profile

1.25.0

Sheh; Edgar D. - Cupertino CA
Sheh; Edgar D. - San Jose 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 employing triangle-like dither to spread track squeeze Grant 10,923,146 - Guo , et al. February 16, 2	2021-02-16
Disk drive writing radial offset spiral servo tracks by reading spiral seed tracks Grant 9,076,490 - Nie , et al. July 7, 2	2015-07-07
Disk drive measuring radial offset between heads by detecting a difference between ramp contact Grant 9,064,537 - Nie , et al. June 23, 2	2015-06-23
Disk drive opening spiral crossing window based on DC and AC spiral track error Grant 9,053,727 - Nie , et al. June 9, 2	2015-06-09
Disk drive measuring spiral track error by measuring a slope of a spiral track across a disk radius Grant 9,047,901 - Nie , et al. June 2, 2	2015-06-02
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 adapting feed-forward compensation using iterative learning control over segments of seek length Grant 8,902,535 - Nie , et al. December 2, 2	2014-12-02
Disk drive detecting when head is on ramp Grant 8,861,126 - Kang , et al. October 14, 2	2014-10-14
Disk drive adjusting gain and offset of BEMF velocity sensor during self writing of spiral tracks Grant 8,665,551 - Rigney , et al. March 4, 2	2014-03-04
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
Locating an initial servo track in order to servo write a disk drive from spiral tracks Grant 7,457,071 - Sheh November 25, 2	2008-11-25
Fault tolerant sync mark detection while servo writing a disk drive from spiral tracks Grant 7,391,583 - Sheh , et al. June 24, 2	2008-06-24
Compensating for repeatable phase error when servo writing a disk drive from spiral tracks Grant 7,391,584 - Sheh , et al. June 24, 2	2008-06-24
Adjusting track density by changing PES algorithm when servo writing a disk drive from spiral tracks Grant 7,068,459 - Cloke , et al. June 27, 2	2006-06-27
Method and disk drive for improving head position accuracy during track following through real-time identification of external vibration Grant 6,693,764 - Sheh , et al. February 17, 2	2004-02-17
Disk drive with feed-forward control path that receives a reference position signal to apply a feed-forward command effort at a rate greater than a servo sampling rate Grant 6,614,618 - Sheh , et al. September 2, 2	2003-09-02
Method for transparent switching and controlling optical signals using mirror designs Grant 6,529,654 - Wong , et al. March 4, 2	2003-03-04

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.