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Japan Petroleum Exploration Co., Ltd.

USPTO Granted Patents = 80

CIPO Patents = 24

EPO Patents = 31

Forward Citations = 54

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88 inventors (with patents filed for the assignee):

Yuichi Tanaka (19 out of 36 patents)

Kazuhiko Tasaka (19 out of 19 patents)

Yasuhiro Onishi (16 out of 18 patents)

4. Eiichi Yamada (13 out of 34 patents)

5. Marie Iwama (11 out of 18 patents)

6. Kenichi Kawazuishi (10 out of 14 patents)

7. Yuzuru Kato (10 out of 13 patents)

8. Atsushi Murata (7 out of 17 patents)

9. Fuyuki Yagi (7 out of 15 patents)

10. Takuya Niitsuma (5 out of 8 patents)

11. Shuhei Wakamatsu (4 out of 12 patents)

12. Toshiya Wakatsuki (4 out of 8 patents)

13. Tomoyuki Mikuriya (3 out of 7 patents)

14. Yasumasa Morita (3 out of 7 patents)

15. Shinya Arai (3 out of 5 patents)

Core Competencies:

Underground Storage

Enhanced Oil Recovery

Hydrocarbon Synthesis

Hydrogenation Catalyst

Fischer-Tropsch Synthesis

Catalyst Recovery

Natural Gas Production

Liquid Hydrocarbon Synthesis

Temperature Control System

Hydrocracking Catalyst

Gas Separation

Reactor Management

80 patents: Sort by Forward Citations

1. 11873703 - Method of underground storage of injection gas containing CO2 gas and enhanced oil recovery (2024-01-16),

2. 11493393 - In-situ stress measurement method (2022-11-08),

3. 10994758 - Transportation management system for railway transportation of LNG tank containers and transportation management device (2021-05-04),

4. 10076773 - Method for washing reactor (2018-09-18),

5. 9920256 - Hydrocarbon compound distillation separation apparatus (2018-03-20),

6. 9884998 - Method of suppressing metal contamination of synthesis gas production apparatus (2018-02-06),

7. 9845435 - Diesel fuel or diesel fuel base stock and production method thereof (2017-12-19),

8. 9839904 - Method for producing hydrogenation catalyst (2017-12-12),

9. 9776160 - Catalyst recovery system, hydrocarbon synthesis reaction apparatus, hydrocarbon synthesis reaction system, and catalyst recovery process (2017-10-03),

10. 9725665 - Kerosene base material production method and kerosene base material (2017-08-08),

11. 9725656 - Method of suppressing metal contamination of synthesis gas production apparatus (2017-08-08),

12. 9688918 - Hydrocarbon synthesis reaction apparatus (2017-06-27),

13. 9688917 - Hydrocarbon-producing apparatus and hydrocarbon-producing method (2017-06-27),

14. 9513051 - Method for recovering hydrocarbon compounds and a hydrocarbon recovery apparatus from a gaseous by-product (2016-12-06),

15. 9499453 - Catalyst filling apparatus of bubble column slurry bed reactor and catalyst filling method of bubble column slurry bed reactor (2016-11-22),

Japan Petroleum Exploration Co., Ltd. (JAPEX) is an oil and gas exploration company headquartered in Tokyo, Japan. With over 50 years of experience, JAPEX is actively involved in the exploration, development, and production of petroleum resources both domestically and internationally. The company's expertise lies in offshore and onshore exploration, as well as in the development of unconventional resources. Through its dedicated efforts, JAPEX continuously contributes to securing a stable energy supply for Japan and the world.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

80 Patents

#543 in Tokyo

#1,274 in Japan

#9,196 in the World

Japan Petroleum Exploration Co., Ltd.

Forward Citations = 54

88 inventors:

Yuichi Tanaka (19 out of 36 patents)

Kazuhiko Tasaka (19 out of 19 patents)

Yasuhiro Onishi (16 out of 18 patents)

4. Eiichi Yamada (13 out of 34 patents)

5. Marie Iwama (11 out of 18 patents)

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