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For the Inventor, By the Inventor

Gyeonggi-do, South Korea

Sk Materials Jnc Co., Ltd.

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USPTO Granted Patents = 19


Forward Citations = 41

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29 inventors (with patents filed for the assignee):

goldMedal Takuji Hatakeyama (18 out of 29 patents)

silverMedal Motoki Yanai (7 out of 23 patents)

bronzeMedal Yuko Yamaga (5 out of 6 patents)

4.  Yasuhiro Kondo (5 out of 9 patents)

5.  Yasuyuki Sasada (5 out of 34 patents)

6.  Daisuke Baba (4 out of 4 patents)

7.  Katsuya Masuda (3 out of 3 patents)

8.  Keiichi Nakamoto (3 out of 5 patents)

9.  Kazushi Shiren (3 out of 10 patents)

10.  Guofang Wang (3 out of 6 patents)

11.  Toshiaki Ikuta (3 out of 5 patents)

12.  Yukihiro Fujita (2 out of 9 patents)

13.  Yohei Ono (2 out of 6 patents)

14.  Akio Tajima (2 out of 91 patents)

15.  Soichiro Nakatsuka (2 out of 4 patents)


19 patents:

1. 12473315 - Polycyclic aromatic compound (2025-11-18),
2. 12185625 - Organic electroluminescence element, display device, and lighting device (2024-12-31),
3. 11877506 - Polycyclic aromatic compound (2024-01-16),
4. 11807656 - Polycyclic aromatic compound and light emission layer-forming composition (2023-11-07),
5. 11800785 - Material for organic device and organic electroluminescent device using the same (2023-10-24),
6. 11723263 - Organic electroluminescent element (2023-08-08),
7. 11711970 - Organic electroluminescent device (2023-07-25),
8. 11653565 - Polycyclic aromatic compound (2023-05-16),
9. 11647666 - Organic electroluminescent element (2023-05-09),
10. 11637250 - Polycyclic aromatic compound and light emitting layer-forming composition (2023-04-25),
11. 11637249 - Organic electroluminescent element (2023-04-25),
12. 11600790 - Polycyclic aromatic compound for organic electroluminescent device (2023-03-07),
13. 11539003 - Polycyclic aromatic amino compound (2022-12-27),
14. 11407774 - Polycyclic aromatic compound (2022-08-09),
15. 11342511 - Azoline ring-containing compound, electron transport/injection layer material containing the same, and organic electroluminescent element using the same (2022-05-24),
Company Overview
SK Materials Jnc Co., Ltd. is a prominent player in the materials science sector, specializing in the development and manufacturing of advanced materials for various applications. The company focuses on innovative solutions in semiconductor materials, electronic components, and specialty chemicals, catering to the evolving needs of industries such as electronics and telecommunications. Headquartered in Gyeonggi-do, South Korea, SK Materials is committed to research and development, driving technological advancements to enhance product performance and sustainability.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

19 Patents

#48 in Gyeonggi-do

#664 in South Korea

#32,705 in the World

Gyeonggi-do, KR
Gyeonggi-do, South Korea

Sk Materials Jnc Co., Ltd.

Forward Citations = 41

29 inventors:

goldMedal Takuji Hatakeyama (18 out of 29 patents)

silverMedal Motoki Yanai (7 out of 23 patents)

bronzeMedal Yuko Yamaga (5 out of 6 patents)

4.  Yasuhiro Kondo (5 out of 9 patents)

5.  Yasuyuki Sasada (5 out of 34 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sk Materials Jnc Co., Ltd.. Retrieved from https://idiyas.com/company/sk-materials-jnc-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]
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