Inventor
Ching-Sheng Chang
Inventor
Hsinchu County, TW
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus50%
G01RMeasuring electric variables13%
H05KPrinted circuits13%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1013%
Y10TTechnical subjects covered by former us classification13%
PatentTitleYear
10,845,571Optical lens202010,558,022Optical lens and fabrication method thereof20209,939,611Optical lens20189,366,722'Method and apparatus for performing de-skew control'20167,889,504'Portable electronic device'20117,417,812'Microminiature lens module and lens device having the same'20086,450,248'Heat sink retainer'2002Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2002Patents assigned to HOYA TECH CO LTD (1)· patent assignee history
2002Based in Taipei, TW· patent location history
2008–2011Based in Taichung, TW· patent location history
2016Patents assigned to CHANG CHING-SHENG (1)· patent assignee history
2016Patents assigned to FARADAY TECH CORP (1)· patent assignee history
2016–2018Based in Hsinchu, TW· patent location history
2018Patents assigned to CHANG CHING SHENG (1)· patent assignee history
2020Patents assigned to RAYS OPTICS INC (2)· patent assignee history
2020Based in Hsinchu County, TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| RAYS OPTICS INC | 2 | 2020 |
| CHANG CHING SHENGself | 1 | 2018 |
| CHANG CHING-SHENGself | 1 | 2016 |
| FARADAY TECH CORP | 1 | 2016 |
| HOYA TECH CO LTD | 1 | 2002 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hsinchu County, TW | 2 | 2020 |
| Hsinchu, TW | 2 | 2016–2018 |
| Taichung, TW | 2 | 2008–2011 |
| Taipei, TW | 1 | 2002 |