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For the Inventor, By the Inventor

Tokyo, Japan

Mitsubishi Corporation


USPTO Granted Patents = 101

% Expired Patents = 11.9



Trademarks = 13

Forward Citations = 2,854

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147 inventors (with patents filed for the assignee):

goldMedal Makoto Saito (24 out of 100 patents)

silverMedal Hiroyuki Harada (6 out of 40 patents)

bronzeMedal Ryuji Monden (5 out of 60 patents)

4.  Kunio Kondo (5 out of 60 patents)

5.  Takeshi Igarashi (4 out of 69 patents)

6.  Donald Ray Huffman (4 out of 6 patents)

7.  Wolfgang Krätschmer (4 out of 4 patents)

8.  Eiji Inoue (3 out of 66 patents)

9.  Eiki Tsushima (3 out of 5 patents)

10.  Kazuyuki Murakami (3 out of 3 patents)

11.  Susumu Katagiri (3 out of 3 patents)

12.  Jun Imamura (3 out of 5 patents)

13.  Yoshio Uchiyama (3 out of 9 patents)

14.  Junya Nakatani (3 out of 8 patents)

15.  Shunichi Momiki (3 out of 3 patents)


Core Competencies:
Lubricating Oil
Production Method
Data Management
Hydrogen Generation
Power Converter
Sintered Magnet
Digital Content
Carbon Fiber
Pharmaceutical Compositions
High Pressure Hydrogen
Refrigeration Cycle
Electronic Control

101 patents:

1. 12696679 - Fullerene derivative and production method therefor (2026-07-28),
2. 12679733 - Fullerene derivative, fullerene derivative production method, deposit, film, and electronic device (2026-07-14),
3. 12517027 - Method of inspecting lubricating oil composition and method of producing lubricating oil composition (2026-01-06),
4. 12421423 - Polishing method, machine device manufacturing method, and machine device (2025-09-23),
5. 12205070 - Product return/replacement system, product return/replacement server, and product return/replacement device (2025-01-21),
6. 12049601 - Method for producing lubricating oil composition, and lubricating oil composition (2024-07-30),
7. 11932820 - Lubricating oil composition and method for producing lubricating oil composition (2024-03-19),
8. 11407960 - Lubricating oil composition and method for producing same (2022-08-09),
9. 11136298 - Method for producing fullerene derivative (2021-10-05),
10. 10526293 - Method for producing fullerene derivative (2020-01-07),
11. 10343972 - Fullerene derivative, fluororesin composition, and lubricant (2019-07-09),
12. 9879921 - Heat exchanger and refrigeration cycle device including the heat exchanger (2018-01-30),
13. 9806594 - Drive device for power converter and driving method of power converter (2017-10-31),
14. 9469203 - Battery information output equipment for power supply and demand leveling system (2016-10-18),
15. 9340117 - Power supply and demand leveling system (2016-05-17),
Mitsubishi Corporation, headquartered in Tokyo, Japan, is a leading general trading company engaged in a diverse range of sectors, including lubricating oil composition. The company specializes in the development and production of advanced lubricating oils, focusing on innovative production methods and data management solutions. Additionally, Mitsubishi is involved in hydrogen generation technologies, power converters, and the manufacturing of sintered magnets. Its expertise extends to digital content and carbon fiber, positioning it as a key player in various technological domains.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Mitsubishi Corporation
101 Patents

#540 in Tokyo

#1,117 in Japan

#7,705 in the World

Tokyo, JP
Tokyo, Japan

Mitsubishi Corporation

Forward Citations = 2,854

147 inventors:

goldMedal Makoto Saito (24 out of 100 patents)

silverMedal Hiroyuki Harada (6 out of 40 patents)

bronzeMedal Ryuji Monden (5 out of 60 patents)

4.  Kunio Kondo (5 out of 60 patents)

5.  Takeshi Igarashi (4 out of 69 patents)

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