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Kanagawa, Japan

Tonengeneral Sekiyu K.k.

USPTO Granted Patents = 15

CIPO Patents = 3

Forward Citations = 129

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38 inventors (with patents filed for the assignee):

Satoshi Ogano (4 out of 7 patents)

Toshiaki Kuribayashi (3 out of 12 patents)

Takanori Kugimiya (3 out of 5 patents)

4. Takehisa Sato (3 out of 3 patents)

5. Nobuchika Kawagoishi (2 out of 2 patents)

6. Hiroyuki Kobayashi (1 out of 109 patents)

7. Narihiko Yoshimura (1 out of 13 patents)

8. Norihiro Nakashima (1 out of 1 patent)

9. Masayoshi Kuwbara (1 out of 1 patent)

10. Manabu Higo (1 out of 1 patent)

11. Hirotaka Tomizawa (1 out of 29 patents)

12. Miyoshi Marumo (1 out of 1 patent)

13. Yosuharu Yokoyama (1 out of 1 patent)

14. Isao Nakashima (1 out of 1 patent)

15. Noriaki Oomori (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 7799212 - Method for preventing fouling of a heat exchanger for cooling residue from a hydrodesulfurization/hydrocracking process (2010-09-21),

2. 7399736 - Low viscosity, high abrasion resistance engine oil composition (2008-07-15),

3. 7148186 - Lubricant oil composition for diesel engines (LAW964) (2006-12-12),

4. 6972084 - Fuel oil composition for diesel engine (2005-12-06),

5. 6878678 - Oil composition for automatic transmission (2005-04-12),

6. 6855675 - Lubricating oil composition (2005-02-15),

7. 6750185 - Lubricating oil composition for internal combustion engines (2004-06-15),

8. 6638897 - Lubricant oil composition for internal combustion engines (law859) (2003-10-28),

9. 6617286 - Lubricating oil composition for continuously variable transmission (2003-09-09),

10. 6593281 - Lubricating oil composition for automatic transmission (2003-07-15),

11. 6511947 - Heat resisting lubricating oil composition (2003-01-28),

12. 6426323 - Lubricating oil composition for continuously variable transmission (2002-07-30),

13. 6329328 - Lubricant oil composition for internal combustion engines (2001-12-11),

14. 6323162 - Lubricant oil composition for internal combustion engines (LAW960) (2001-11-27),

15. 6267874 - Hydrotreating catalyst and processes for hydrotreating hydrocarbon oil with the same (2001-07-31),

Tonengeneral Sekiyu K.K. is a Japanese energy company primarily engaged in the petroleum business. The company operates in various segments, including Refining & Marketing, Exploration & Production, and Others. Tonengeneral Sekiyu is involved in the refining and sale of petroleum products, exploration and production of oil and natural gas, as well as the operation of service stations. The company is committed to providing high-quality products and services while considering environmental sustainability.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

15 Patents

#104 in Kanagawa

#3,363 in Japan

#38,669 in the World

Kanagawa, Japan

Tonengeneral Sekiyu K.k.

Forward Citations = 129

38 inventors:

Satoshi Ogano (4 out of 7 patents)

Toshiaki Kuribayashi (3 out of 12 patents)

Takanori Kugimiya (3 out of 5 patents)

4. Takehisa Sato (3 out of 3 patents)

5. Nobuchika Kawagoishi (2 out of 2 patents)

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