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USPTO Data Jan 1 1976 - Oct 13 2026
69 Patents
#35 in Taichung
#314 in Taiwan
#10,763 in the World
Largan Precision., Ltd.
Forward Citations = 20
70 inventors:
Largan Precision., Ltd.
EPO Patents = 11
Forward Citations = 20
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70 inventors (with patents filed for the assignee):
Ming-Ta Chou (23 out of 408 patents)
Hsin-Hsuan Huang (12 out of 436 patents)
Wen-Yu Tsai (11 out of 30 patents)
4. Cheng-Yu Tsai (10 out of 21 patents)
5. Kuan-Ting Yeh (9 out of 43 patents)
6. Tzu-Chieh Kuo (7 out of 105 patents)
7. Wei-Yu Chen (6 out of 297 patents)
8. Te-Sheng Tseng (6 out of 83 patents)
9. Chen-Wei Fan (6 out of 11 patents)
10. Yu Jui Lin (5 out of 23 patents)
11. Kuo-Chiang Chu (5 out of 20 patents)
12. Chien-Pang Chang (5 out of 24 patents)
13. Chun-Che Hsueh (4 out of 114 patents)
14. Hsiang-Chi Tang (4 out of 115 patents)
15. Chun-Hung Teng (4 out of 36 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
69 patents:
7. 12736778 - Imaging optical lens assembly, image capturing unit and electronic device (2026-09-15),
10. 12724246 - Optical path folding element, imaging lens module and electronic device (2026-09-01),
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]