Inventor
Shyh-Jier Wang
Inventor
Hsinchu County, TW
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Kprimary
H02KDynamo-electric machines29%
G11BInformation storage based on relative movement between record carrier and transducer18%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters18%
F16CShafts6%
G01BMeasuring length, thickness or similar linear dimensions6%
G01DMeasuring not specially adapted for a specific variable6%
G01RMeasuring electric variables6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
Y10TTechnical subjects covered by former us classification6%
PatentTitleYear
7,886,317'Vibration absorber'20117,672,198'Optical pickup head and electromagnetic actuating device thereof'20107,573,218'Sensorless driving method for brushless DC motor'20097,319,303'Method and apparatus for estimating the position of a moving part of a linear actuator'20086,998,814'Method for measuring the electromotive force constant of motors'20066,703,736'Magnetic bearing'20046,686,761'Method for determining whether a rotor is good in magnetic induction by measuring the EMF of a motor'20046,204,618'Starting method for brushless DC motor and device for the same'20016,047,456'Method of designing optimal bi-axial magnetic gears and system of the same'20005,923,110'Spindle motor for optical disc drives'19995,744,893'Brushless motor stator design'19985,739,620'Optimum groove/pole ratio for brushless motor stator profile'1998Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1998–2011Patents assigned to IND TECH RES INST (12)· patent assignee history
1998–2011Based in Hsinchu County, TW· patent location history
1998–2010Based in Hsinchu, TW· patent location history
1999Patents assigned to SUNONWEALTH ELECTR MACH IND CO (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| IND TECH RES INST | 12 | 1998–2011 |
| SUNONWEALTH ELECTR MACH IND CO | 1 | 1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu County, TW | 9 | 1998–2011 |
| Hsinchu, TW | 3 | 1998–2010 |