Inventor
Chih-Shih Yang
Inventor
Hsinchu, TW
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Pprimary
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters38%
H03KPulse technique23%
G06FElectric digital data processing15%
H02HEmergency protective circuit arrangements15%
H05KPrinted circuits8%
PatentTitleYear
10,608,426High temperature protection system for adjusting duty cycle by using pulse width modulation signal202010,338,652High voltage protection system for adjusting duty cycle by using pulse width modulation signal20199,859,837'Negative voltage protection system for reducing an intensity of negative voltage'20189,184,746'Contactless switch and associated method'20157,250,735'Driving circuit of a fan'20077,019,473'Noiseless driving circuit for DC motor'20066,617,818'Voltage independent PWM base frequency generating method'20036,522,093'Method for driving a brushless DC motor'2003Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2003–2020Patents assigned to PROLIFIC TECHNOLOGY INC (8)· patent assignee history
2003–2020Based in Hsinchu, TW· patent location history
2015Patents assigned to YANG CHIH-SHIH (1)· patent assignee history
2015Based in Taipei, TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PROLIFIC TECHNOLOGY INC | 8 | 2003–2020 |
| YANG CHIH-SHIHself | 1 | 2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu, TW | 7 | 2003–2020 |
| Taipei, TW | 1 | 2015 |