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USPTO Data Jan 1 1976 - Oct 13 2026
1,387 Patents
#2 in Taichung
#25 in Taiwan
#721 in the World
Largan Precision Co., Ltd.
Forward Citations = 10,829
130 inventors:
Largan Precision Co., Ltd.
% Expired Patents = 0.14
EPO Patents = 77
Trademarks = 3
Forward Citations = 10,829
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130 inventors (with patents filed for the assignee):
Hsin-Hsuan Huang (424 out of 436 patents)
Ming-Ta Chou (310 out of 408 patents)
Wei-Yu Chen (289 out of 297 patents)
4. Tsung-Han Tsai (225 out of 226 patents)
5. Hsiang-Chi Tang (111 out of 115 patents)
6. Chun-Che Hsueh (110 out of 114 patents)
7. Tzu-Chieh Kuo (98 out of 105 patents)
8. Po-Lun Hsu (72 out of 73 patents)
9. Cheng-Feng Lin (70 out of 74 patents)
10. Chun-Yen Chen (68 out of 72 patents)
11. Cheng-Chen Lin (67 out of 67 patents)
12. Chun-Shan Chen (62 out of 63 patents)
13. Kuan-Ming Chen (58 out of 64 patents)
14. Shu-Yun Yang (56 out of 57 patents)
15. Yu-Tai Tseng (55 out of 56 patents)
Core Competencies:
Optical Lens Assembly
Camera Module
Image Capturing Unit
Imaging Lens Assembly
Photographing Optical Lens
Optical Imaging System
Lens System
Imaging Module
Projection Apparatus
Shiftable Image Sensor
Light Path Folding
Optical Imaging Device
1,387 patents:
7. 12504605 - Lens system, projection apparatus, detecting module and electronic device (2025-12-23),
10. 12493166 - Imaging optical lens system, image capturing unit and electronic device (2025-12-09),
Company Overview
Largan Precision Co., Ltd. is a leading manufacturer based in Taichung, Taiwan, specializing in optical imaging systems. The company focuses on the development and production of high-quality optical lens assemblies and camera modules, catering to a diverse range of applications in the imaging sector. Largan's expertise encompasses various core technology topics, including imaging lens assemblies and optical imaging systems, positioning it as a key player in the global optical lens market.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Largan Precision Co., Ltd.. Retrieved from https://idiyas.com/company/largan-precision-company
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]
77 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]