Inventor
YangQuan Chen
Inventor
Singapore, SG
Overview
Patents· 15 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer69%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
G01RMeasuring electric variables6%
G05BControl or regulating systems in general6%
G05FSystems for regulating electric or magnetic variables6%
G11CStatic stores6%
PatentTitleYear
11,024,392Sense amplifier for bidirectional sensing of memory cells of a non-volatile memory20219,523,723'Fractional order power point tracking'20167,599,752'Tuning methods for fractional-order controllers'20096,785,073'Identification and cancellation of cage frequency in a hard disc drive'20046,704,159'Automatic acoustic management system for a disc drive'20046,690,534'Method and apparatus for handling multiple resonance frequencies in disc drives using active damping'20046,674,607'Method and apparatus for determining high order polynomials for linearization of position signals'20046,674,589'Method for harmonic frequency identification in a disc drive'20046,661,599'Enhanced adaptive feedforward control to cancel once-per-revolution disturbance by shaping the internal mode'20036,654,198'Repeatable run-out error compensation method for a disc drive'20036,636,375'Seek in a disc drive with nonlinear pivot friction'20036,574,067'Optimally designed parsimonious repetitive learning compensator for hard disc drives having high track density'20036,563,663'Repeatable runout compensation using iterative learning control in a disc storage system'20036,437,936'Repeatable runout compensation using a learning algorithm with scheduled parameters'20026,324,890'Method of characterizing and screening voice coil motor pivot friction in a low velocity region'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2004Patents assigned to SEAGATE TECHNOLOGY LLC (12)· patent assignee history
2001–2004Based in Singapore, SG· patent location history
2009–2016Patents assigned to UNIV UTAH STATE (2)· patent assignee history
2009Based in Logan, UT, US· patent location history
2016Patents assigned to CHEN YANGQUAN (1)· patent assignee history
2016Patents assigned to MALEK HADI (1)· patent assignee history
2016Based in Atwater, CA, US· patent location history
2021Patents assigned to SANDISK TECHNOLOGIES LLC (1)· patent assignee history
2021Based in Cupertino, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEAGATE TECHNOLOGY LLC | 12 | 2001–2004 |
| UNIV UTAH STATE | 2 | 2009–2016 |
| CHEN YANGQUANself | 1 | 2016 |
| MALEK HADI | 1 | 2016 |
| SANDISK TECHNOLOGIES LLC | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Singapore, SG | 12 | 2001–2004 |
| Cupertino, California, US | 1 | 2021 |
| Atwater, California, US | 1 | 2016 |
| Logan, UT, US | 1 | 2009 |