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Mitsubishi Oil Co., Ltd.

USPTO Granted Patents = 54

CIPO Patents = 1

Forward Citations = 518

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83 inventors (with patents filed for the assignee):

Junsuke Yabumoto (12 out of 12 patents)

Hisashi Yano (11 out of 11 patents)

Kazuhito Tate (9 out of 9 patents)

4. Yoshio Takahashi (7 out of 8 patents)

5. Kazuhiro Yanagida (7 out of 7 patents)

6. Shigeto Hatanaka (6 out of 12 patents)

7. Hajime Yoshida (5 out of 23 patents)

8. Fumio Kumata (5 out of 6 patents)

9. Kunihiko Moriya (5 out of 5 patents)

10. Goro Muroga (5 out of 5 patents)

11. Hiroyuki Ihara (5 out of 5 patents)

12. Masayoshi Muraki (4 out of 5 patents)

13. Ryuzi Kuwavara (3 out of 3 patents)

14. Akiharu Kitada (3 out of 3 patents)

15. Koji Tsuchimoto (3 out of 3 patents)

Core Competencies:

Lubricating Oil Composition

Desulfurization Process

Refrigerating Machine Oil

Alkenylsuccinic Acid

Spherical Zeolite Catalyst

Gasoline-Blended Methanol Fuel

Hydrogenated Liquid Petroleum Resin

Paper Sizing Agent

Conductive Graphite Fiber

Integrated Separator

Optically Anisotropic Pitch

Carbon Fiber Production

54 patents: Sort by Forward Citations

1. 6010988 - Lubricating oil composition (2000-01-04),

2. 5906730 - Process for desulfurizing catalytically cracked gasoline (1999-05-25),

3. 5853570 - Process for desulfurizing catalytically cracked gasoline (1998-12-29),

4. 5808169 - Process for the preparation of 1,2,4,5-dimethyldiisopropylbenzene (1998-09-15),

5. 5728655 - Refrigerating machine oil composition for use with HCFC and HFC (1998-03-17),

6. 5665811 - Alkenylsuccinic acid emulsion sizing agent (2) (1997-09-09),

7. 5653909 - Refrigerating machine oil composition for use with HFC refrigerant (1997-08-05),

8. 5639812 - Alkenylsuccinic acid emulsion sizing agent (1) (1997-06-17),

9. 5625102 - Method of alkylating the side chain of alkyl-substituted aromatic (1997-04-29),

10. 5608132 - Method of alkylating the side chain of alkyl-substituted aromatic (1997-03-04),

11. 5510019 - Bubble separating apparatus (1996-04-23),

12. 5464593 - Process for producing spherical zeolite catalyst and apparatus for (1995-11-07),

13. 5462650 - Process for producing low viscosity lubricating base oil having high (1995-10-31),

14. 5460713 - Process for producing low viscosity lubricating base oil having high (1995-10-24),

15. 5457255 - Catalysts for hydrogenolytic dealkylation and use thereof (1995-10-10),

Mitsubishi Oil Co., Ltd. is a multinational energy company engaged in the production, refining, and distribution of petroleum, lubricants, and other petroleum-based products. With a rich history spanning over a century, Mitsubishi Oil has established a strong presence in the global energy market. The company focuses on delivering high-quality and sustainable energy solutions to its customers, while prioritizing environmental preservation and social responsibility. For more information about Mitsubishi Oil Co., Ltd., please visit their official website.

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

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USPTO Data Jan 1 1976 - Jan 6 2026

54 Patents

#670 in tokyo

#1,593 in Japan

#12,753 in the World

Mitsubishi Oil Co., Ltd.

Forward Citations = 518

83 inventors:

Junsuke Yabumoto (12 out of 12 patents)

Hisashi Yano (11 out of 11 patents)

Kazuhito Tate (9 out of 9 patents)

4. Yoshio Takahashi (7 out of 8 patents)

5. Kazuhiro Yanagida (7 out of 7 patents)

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