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USPTO Data Jan 1 1976 - Nov 3 2026
75 Patents
#33 in Taichung
#296 in Taiwan
#10,020 in the World
Largan Precision., Ltd.
Forward Citations = 20
71 inventors:
Largan Precision., Ltd.
Calculating rank
EPO Patents = 11
Forward Citations = 20
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71 inventors (with patents filed for the assignee):
Ming-Ta Chou (25 out of 410 patents)
Hsin-Hsuan Huang (13 out of 437 patents)
Wen-Yu Tsai (12 out of 31 patents)
4. Cheng-Yu Tsai (10 out of 21 patents)
5. Kuan-Ting Yeh (9 out of 43 patents)
6. Wei-Yu Chen (7 out of 298 patents)
7. Tzu-Chieh Kuo (7 out of 105 patents)
8. Te-Sheng Tseng (6 out of 83 patents)
9. Chien-Pang Chang (6 out of 26 patents)
10. Chen-Wei Fan (6 out of 11 patents)
11. Chun-Hung Teng (5 out of 37 patents)
12. Lin-An Chang (5 out of 41 patents)
13. Ssu-Hsin Liu (5 out of 16 patents)
14. Yu Jui Lin (5 out of 23 patents)
15. Kuo-Chiang Chu (5 out of 20 patents)
Core Competencies:
Imaging Lens Assembly
Optical Lens Assembly
Camera Module
Image Capturing Unit
Optical Imaging
Photographing System
Controllable Aperture
Low Reflection Layer
Optical Path Folding
Compact Camera Module
Plastic Lens Element
Adjustable Aperture Module
75 patents:
4. 12775149 - Photographing optical lens system, imaging apparatus and electronic device (2026-10-27),
Company Overview
Largan Precision, Ltd. is a leading manufacturer based in Taichung, Taiwan, specializing in imaging lens technology. The company focuses on the development and production of high-quality optical lens assemblies and camera modules, which are integral to modern image capturing units and photographing systems. Largan's expertise extends to controllable apertures and low reflection layers, positioning it at the forefront of optical imaging innovation. Its commitment to advanced technology supports a wide range of applications in consumer electronics and beyond.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Largan Precision., Ltd.. Retrieved from https://idiyas.com/company/largan-precision
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
11 patents (EPO):
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]