EPO Patents = 1

Forward Citations = 365

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4 inventors (with patents filed for the assignee):

Young Rag Do (6 out of 55 patents)

Young-Rag Do (4 out of 17 patents)

Yeon-Goog Sung (4 out of 4 patents)

4. Yeon Goog Sung (2 out of 29 patents)

10 patents: Sort by Forward Citations

1. 10062804 - Method of manufacturing nano-scale LED electrode assembly comprising selective metal ohmic layer (2018-08-28),

2. 9978725 - LED lamp using ultra-small LED electrode assembly (2018-05-22),

3. 9935241 - Solvent for manufacture of self-assembled nano-scale LED electrode assembly and method for manufacturing self-assembled nano-scale LED electrode assembly by the same (2018-04-03),

4. 9773761 - Ultra-small LED electrode assembly and method for manufacturing same (2017-09-26),

5. 9570425 - Display comprising ultra-small LEDs and method for manufacturing same (2017-02-14),

6. 9293668 - Phosphor-converted single-color LED including a long-wavelength pass filter (2016-03-22),

7. 9112112 - Subminiature led element and manufacturing method thereof (2015-08-18),

8. 9059114 - Full-color LED display device and manufacturing method thereof (2015-06-16),

9. 9024335 - Multi-package white LED device (2015-05-05),

10. 7943947 - LED device comprising thin-film phosphor having two dimensional nano periodic structures (2011-05-17),

Company Overview

Psi Co., Ltd. is a South Korean company based in Gyeonggi-do, specializing in advanced technology solutions and innovative products. The organization focuses on the development and manufacturing of high-performance electronic components and systems, catering to various industries including telecommunications, automotive, and consumer electronics. With a commitment to research and development, Psi Co., Ltd. aims to enhance technological capabilities and drive progress in its core domains, contributing to the evolution of modern technology.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

10 Patents

#72 in Gyeonggi-do

#1,087 in South Korea

#55,986 in the World

Gyeonggi-do, South Korea

Psi Co., Ltd.

Forward Citations = 365

4 inventors:

Young Rag Do (6 out of 55 patents)

Young-Rag Do (4 out of 17 patents)

Yeon-Goog Sung (4 out of 4 patents)

4. Yeon Goog Sung (2 out of 29 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Psi Co., Ltd.. Retrieved from https://idiyas.com/company/psi-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]

1 patent (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]