Forward Citations = 60

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12 inventors (with patents filed for the assignee):

Dae-Gab Gweon (2 out of 3 patents)

Jaeuk Ryu (1 out of 11 patents)

Ook Kim (1 out of 11 patents)

4. Sung Ho Lee (1 out of 49 patents)

5. Jae K Chong (1 out of 1 patent)

6. Seong I Jang (1 out of 1 patent)

7. Min H Song (1 out of 1 patent)

8. Dong S Kim (1 out of 1 patent)

9. Deockje Cho (1 out of 1 patent)

10. Hee Hyeong Moon (1 out of 1 patent)

11. Young-Bin Cho (1 out of 1 patent)

12. Sang-Kwon Cha (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. D491903 - Combined video tape and disc player (2004-06-23),

2. 5774210 - Perpendicularity measuring method and an apparatus thereof (1998-06-30),

3. 5483391 - Method of and apparatus for adjusting deck mechanism of video cassette (1996-01-09),

4. 5200828 - Autofocusing device for use in a video camera and an autofocusing method (1993-04-06),

Company Overview

Sam Jung Co., Ltd. is a leading manufacturer of high-quality industrial equipment in South Korea. Established in 1985, the company specializes in the production of precision machinery and automated systems for various industries. With a strong emphasis on technological innovation and customer satisfaction, Sam Jung Co., Ltd. has built a reputation for delivering reliable and efficient solutions to meet the needs of its clients. Visit our website to learn more about our products and services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#18 in Gyeonggi

#2,202 in South Korea

Gyeonggi, South Korea

Sam Jung Co., Ltd.

Forward Citations = 60

12 inventors:

Dae-Gab Gweon (2 out of 3 patents)

Jaeuk Ryu (1 out of 11 patents)

Ook Kim (1 out of 11 patents)

4. Sung Ho Lee (1 out of 49 patents)

5. Jae K Chong (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sam Jung Co., Ltd.. Retrieved from https://idiyas.com/company/sam-jung-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]