Inventor
Yunfeng Li
Inventor
San Jose, CA, US
Overview
Patents· 32 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 transducer17%
G06TImage data processing or generation, in general7%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations5%
C07DHeterocyclic compounds5%
G01VGeophysics5%
H04NPictorial communication, e.g. television5%
H05BElectric heating5%
G06VImage or video recognition or understanding3%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications3%
A61KPreparations for medical, dental or toiletry purposes2%
PatentTitleYear
10,958,114Method of making a magnetic core with tooth having overlapping short and long teeth distal ends202110,895,445Articulated arm coordinate measuring machines with active counterbalance202110,671,361Automatically determining data dependencies to facilitate code execution202010,470,266LED dimming load sudden change suppression circuit201910,414,025Weather-resistant polishing pad201910,359,712Relative position measurement based alignment system, double workpiece stage system and measurement system201910,338,251Method and apparatus for directional designature201910,324,208Premigration deghosting for marine streamer data using a bootstrap approach in Tau-P domain201910,122,080Supply cable, a driver arrangement with wireless control function and a control method20189,945,969Apparatus and method for reconstructing complex salt geometry using dual-flood RTM with prismatic waves20189,787,969'Figure ground organization of 3-D scenes'20179,755,427'Current clamp circuit based on BCD technology'20179,618,192'Small-spacing LED screen'20179,397,345'Cathodes for lithium-air battery cells with acid electrolytes'20169,225,964'Figure-ground organization of 3-D scenes'20159,119,268'Driver with isolation and surge signal protection'20158,980,887'2-aryl imidazo[1,2-a]pyridine-3-acetamide derivatives, preparation methods and uses thereof'20158,921,563'1-[(4-hydroxypiperidin-4-yl)methyl]pyridin-2(1H)-one derivatives, preparation methods and uses thereof'20148,406,567'Reconstruction of shapes of near symmetric and asymmetric objects'20138,318,772'Amine compounds and medical uses thereof'20128,224,065'Reconstruction of shapes of objects from images'20127,400,468'Vibration detector for hard disk drives'20087,382,570'Dynamically controlling seek profile in an acceleration tracking seek controller'20087,375,911'Piezoelectric actuator and sensor for disk drive dual-stage servo systems'20087,369,345'Mobile hard disk drive free fall detection and protection'20087,350,394'Zero-g offset identification of an accelerometer employed in a hard disk drive'20087,286,317'Disk drive that compensates for repeatable runout of a disk based on measured timing between servo information and methods thereof'20077,283,321'Disk drives and methods allowing for dual stage actuator adaptive seek control and microactuator gain calibration'20077,215,499'Multi-stage actuator disk drive and methods for controlling a transducer with settle-switching state dependent feed-forward control'20077,126,785'Multi-stage actuator disk drives, methods, and computer program products for seeking and then maintaining a transducer on track'20067,049,301'Quercetin derivatives and their medical usages'20067,027,253'Microactuator servo control during self writing of servo data'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2008Patents assigned to MAXTOR CORP (9)· patent assignee history
2006–2008Based in San Jose, CA, US· patent location history
2006–2015Based in Beijing, CN· patent location history
2012–2018Patents assigned to LI YUNFENG (8)· patent assignee history
2012–2017Patents assigned to PURDUE RESEARCH FOUNDATION (4)· patent assignee history
2012–2015Patents assigned to PIZLO ZYGMUNT (3)· patent assignee history
2013–2017Based in Whitewater, WI, US· patent location history
2015–2020Based in Shanghai, CN· patent location history
2018–2019Patents assigned to CGG SERVICES SAS (3)· patent assignee history
2018–2019Based in Sugar Land, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MAXTOR CORP | 9 | 2006–2008 |
| LI YUNFENGself | 8 | 2012–2018 |
| PURDUE RESEARCH FOUNDATION | 4 | 2012–2017 |
| CGG SERVICES SAS | 3 | 2018–2019 |
| PIZLO ZYGMUNT | 3 | 2012–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Jose, California, US | 9 | 2006–2008 |
| Beijing, CN | 5 | 2006–2015 |
| Shanghai, CN | 3 | 2015–2020 |
| Sugar Land, Texas, US | 3 | 2018–2019 |
| Whitewater, WI, US | 3 | 2013–2017 |