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For the Inventor, By the Inventor

Tokyo, Japan

Jx Nippon Oil Energy Corporation


USPTO Granted Patents = 331



Trademarks = 9

Forward Citations = 844

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419 inventors (with patents filed for the assignee):

goldMedal Shinichiro Yanagawa (24 out of 30 patents)

silverMedal Kazuaki Hayasaka (23 out of 25 patents)

bronzeMedal Kazuhiko Tasaka (19 out of 19 patents)

4.  Masahide Kobayashi (18 out of 41 patents)

5.  Marie Iwama (18 out of 18 patents)

6.  Yuichi Tanaka (17 out of 36 patents)

7.  Suzushi Nishimura (16 out of 37 patents)

8.  Yasuyuki Iwasa (14 out of 20 patents)

9.  Yoshiyuki Nagayasu (14 out of 14 patents)

10.  Yasuhiro Onishi (14 out of 18 patents)

11.  Shigeki Matsui (13 out of 30 patents)

12.  Ryoji Ida (12 out of 15 patents)

13.  Souichirou Konno (12 out of 25 patents)

14.  Eiichi Yamada (12 out of 34 patents)

15.  Masanori Saito (11 out of 42 patents)


Core Competencies:
Refrigerant Oil
Optical Phase Difference Component
Lubricating Oil Composition
Astaxanthin Production
Fiber-Reinforced Composite Material
Fischer-Tropsch Synthesis Catalyst
Hydrocarbon Production
Transparent Film
Ionomer Resin Composition
Working Fluid Composition
Hydrogenation Catalyst
Viscosity Index Improver

331 patents:

1. 10550351 - Refrigerator oil and refrigerator working fluid composition (2020-02-04),
2. 10408984 - Optical phase difference component, composite optical component, incorporating optical phase difference component, and method for manufacturing optical phase difference component (2019-09-10),
3. 10273394 - Refrigerating machine working fluid composition and refrigerant oil (2019-04-30),
4. 10240215 - Method for producing astaxanthin by fermentation (2019-03-26),
5. 10227541 - Lubricating oil composition for transmissions (2019-03-12),
6. 10214671 - Refrigerator oil and working fluid composition for refrigerator (2019-02-26),
7. 10208408 - Method for manufacturing ultrafine fiber (2019-02-19),
8. 10087389 - Lubricating oil composition (2018-10-02),
9. 10087376 - Method for producing monocyclic aromatic hydrocarbons (2018-10-02),
10. 10081157 - Fiber-reinforced composite material (2018-09-25),
11. 10076773 - Method for washing reactor (2018-09-18),
12. 10053647 - Working fluid composition for refrigerator, and refrigerator oil (2018-08-21),
13. 9988585 - Method for producing base oil for lubricant oils (2018-06-05),
14. 9988583 - Highly aromatic base oil and method for producing highly aromatic base oil (2018-06-05),
15. 9920256 - Hydrocarbon compound distillation separation apparatus (2018-03-20),
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USPTO Data Jan 1 1976 - Dec 30 2025

331 Patents

#223 in Tokyo

#486 in Japan

#2,652 in the World

...
Tokyo, Japan

Jx Nippon Oil Energy Corporation

Forward Citations = 844

419 inventors:

goldMedal Shinichiro Yanagawa (24 out of 30 patents)

silverMedal Kazuaki Hayasaka (23 out of 25 patents)

bronzeMedal Kazuhiko Tasaka (19 out of 19 patents)

4.  Masahide Kobayashi (18 out of 41 patents)

5.  Marie Iwama (18 out of 18 patents)

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