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Chevron Japan Limited

USPTO Granted Patents = 23

% Expired Patents = 8.7

CIPO Patents = 2

EPO Patents = 39

Forward Citations = 8

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40 inventors (with patents filed for the assignee):

Koichi Kubo (7 out of 77 patents)

Masami Fuchi (6 out of 6 patents)

Takahiro Nakagawa (5 out of 10 patents)

4. Isao Tanaka (4 out of 5 patents)

5. Hiroyuki Nagamatsu (4 out of 5 patents)

6. Yoshitaka Takeuchi (2 out of 29 patents)

7. Hisanari Onouchi (2 out of 6 patents)

8. Taiki Hattori (2 out of 2 patents)

9. Nobuo Ushioda (2 out of 2 patents)

10. Morikuni Nakazato (2 out of 6 patents)

11. Yasuhiro Ogasawara (2 out of 2 patents)

12. Satoshi Ohta (2 out of 5 patents)

13. Hiroki Andoh (2 out of 6 patents)

14. William R Ruhe, Jr (2 out of 51 patents)

15. Satoshi Ohta (2 out of 8 patents)

23 patents: Sort by Forward Citations

1. 12723214 - Lubricating engine oil for hybrid or plug-in hybrid electric vehicles (2026-09-01),

2. 12606764 - Lubricating oil compositions (2026-04-21),

3. 12529005 - Lubricating oil compositions for electric vehicles (2026-01-20),

4. 12448583 - Lubricating oil composition (2025-10-21),

5. 12391898 - Friction modifier system (2025-08-19),

6. 12384981 - Lubricating oil composition for hybrid vehicles (2025-08-12),

7. 12331260 - Ashless additive composition (2025-06-17),

8. 12291686 - Lubricating oil compositions for automatic transmissions (2025-05-06),

9. 11214754 - Low viscosity lubricating oil composition (2022-01-04),

10. 11193084 - Low viscosity lubricating oil compositions (2021-12-07),

11. 10669507 - Fuel economy engine oil composition (2020-06-02),

12. 10604719 - Lubricating oils for automatic transmissions (2020-03-31),

13. 9499765 - Lubricating oil compositions for construction machines (2016-11-22),

14. 9102896 - Fuel economical lubricating oil composition for internal combustion engines (2015-08-11),

15. 8926763 - Method for cleaning internal parts of gasoline engines (2015-01-06),

Chevron Japan Limited is a subsidiary of Chevron Corporation, focusing on the exploration and production of oil and natural gas in Japan. The company specializes in energy solutions and is involved in various aspects of the energy sector, including refining and marketing petroleum products. With a commitment to innovation, Chevron Japan engages in research and development to enhance energy efficiency and sustainability, contributing to the broader energy landscape in the Asia-Pacific region.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

23 Patents

#1,244 in Tokyo

#2,701 in Japan

#27,619 in the World

Chevron Japan Limited

Forward Citations = 8

40 inventors:

Koichi Kubo (7 out of 77 patents)

Masami Fuchi (6 out of 6 patents)

Takahiro Nakagawa (5 out of 10 patents)

4. Isao Tanaka (4 out of 5 patents)

5. Hiroyuki Nagamatsu (4 out of 5 patents)

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