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Mitsui Toatsu Chemicals, Incorporated

USPTO Granted Patents = 1,379

CIPO Patents = 11

Trademarks = 5

Forward Citations = 12,642

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1,627 inventors (with patents filed for the assignee):

Akihiro Yamaguchi (188 out of 213 patents)

Masahiro Ohta (65 out of 70 patents)

Teruyuki Nagata (63 out of 72 patents)

4. Tadashi Asanuma (60 out of 67 patents)

5. Keizaburo Yamaguchi (56 out of 58 patents)

6. Shoji Tamai (54 out of 68 patents)

7. Katsuyoshi Sasagawa (45 out of 45 patents)

8. Hisato Itoh (42 out of 49 patents)

9. Masanobu Ajioka (40 out of 61 patents)

10. Yoshimitsu Tanabe (40 out of 45 patents)

11. Masakatsu Nakatsuka (36 out of 43 patents)

12. Kiyoharu Hasegawa (36 out of 36 patents)

13. Tetsunosuke Shiomura (33 out of 34 patents)

14. Tsutomu Nishizawa (33 out of 33 patents)

15. Yoshinobu Kanemura (31 out of 45 patents)

Core Competencies:

Polymer Chemistry

Optical Materials

Biodegradable Polymers

Monoclonal Antibodies

Liquid Crystal Compositions

Thermosetting Coatings

Phytase Enzymes

High-Refractive Index Lenses

Aromatic Hydroxycarboxylic Acids

Syndiotactic Polypropylene

Insecticide Compositions

Catalytic Processes

1,379 patents: Sort by Forward Citations

1. 6936684 - Poly (alkylene oxide) prepared in the presence of a phosphazenium salt or compound (2005-08-30),

2. 6090892 - Redispersible polymer and production process thereof (2000-07-18),

3. 6051223 - Method of improving solubility of tissue plasminogen activator (2000-04-18),

4. 5908826 - Freeze-dried preparation containing monoclonal antibody (1999-06-01),

5. 5869184 - Diguanamines and preparation process, derivatives and use thereof (1999-02-09),

6. 5837797 - Process for preparing a sulfur-containing urethane-based plastic lens (1998-11-17),

7. 5830732 - Phytase (1998-11-03),

8. 5798422 - Aromatic hydroxycarboxylic acid resins and their use (1998-08-25),

9. 5777175 - Preparation of polyoxyalkylene polyols, polymer polyols and flexible (1998-07-07),

10. 5773172 - Color filter having novel dyestuff (1998-06-30),

11. 5770683 - Preparation process of polyhydroxycarboxylic acid (1998-06-23),

12. 5770108 - Pyrimidine compound and liquid crystal composition and liquid crystal (1998-06-23),

13. 5763537 - Polyimide based resin composition (1998-06-09),

14. 5763513 - L-lactic acid polymer composition, molded product and film (1998-06-09),

15. 5760187 - Purification process of a human growth hormone (1998-06-02),

Mitsui Toatsu Chemicals, Incorporated is a leading chemical company based in Japan. With a wide range of products and services, they are involved in various industries such as chemicals, materials, energy, and health and nutrition. Their aim is to contribute to society through the creation of innovative and sustainable solutions. For more information about Mitsui Toatsu Chemicals, Incorporated, please visit their website.

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

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USPTO Data Jan 1 1976 - Dec 9 2025

1,379 Patents

#77 in Tokyo

#157 in Japan

#697 in the World

Mitsui Toatsu Chemicals, Incorporated

Forward Citations = 12,642

1,627 inventors:

Akihiro Yamaguchi (188 out of 213 patents)

Masahiro Ohta (65 out of 70 patents)

Teruyuki Nagata (63 out of 72 patents)

4. Tadashi Asanuma (60 out of 67 patents)

5. Keizaburo Yamaguchi (56 out of 58 patents)

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