Tokyo, Japan

Mitsui Co., Ltd.


USPTO Granted Patents = 37

% Expired Patents = 10.8



Trademarks = 10

Forward Citations = 584

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63 inventors (with patents filed for the assignee):

goldMedal Masanobu Nakamura (4 out of 6 patents)

silverMedal Tsuneo Yano (3 out of 3 patents)

bronzeMedal Jun Taga (3 out of 3 patents)

4.  Yuji Kobayashi (2 out of 46 patents)

5.  Koji Miyasaka (2 out of 21 patents)

6.  Kenichi Takasu (2 out of 6 patents)

7.  Masakazu Mori (2 out of 15 patents)

8.  Kazuyuki Sakaki (2 out of 3 patents)

9.  Fumio Tanimoto (2 out of 11 patents)

10.  Takayuki Usui (2 out of 3 patents)

11.  Masao Iijima (2 out of 3 patents)

12.  Tadashi Imai (2 out of 2 patents)

13.  Tadao Hamaya (2 out of 3 patents)

14.  Sadami Ishibashi (2 out of 2 patents)

15.  Shoji Horiuchi (1 out of 2 patents)


Core Competencies:
Electro-Conductive Fibers
Carbon Nanotubes
Polymer Gel Electrolyte
Position Measurement
Food Preservation
Deodorizer
Hydrogen Vehicle
Shock Absorbing Member
Thermoplastic Cement
Waste Reclamation
Blood Sugar Measurement
Laminated Glass Cutting

37 patents:

Mitsui Co., Ltd. is a diversified global trading and investment company headquartered in Tokyo, Japan. The organization specializes in a wide range of sectors including chemicals, machinery, food, and textiles, leveraging its extensive network to facilitate international trade and investment. Mitsui is actively involved in various research and technology domains, focusing on sustainable development and innovation across industries. Its operations span multiple continents, reflecting a commitment to fostering economic growth and collaboration worldwide.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Mitsui Co., Ltd.
37 Patents

#963 in Tokyo

#2,052 in Japan

#18,238 in the World

Tokyo, JP
Tokyo, Japan
Forward Citations = 584

63 inventors:

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