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Jfe Chemical Corporation

USPTO Granted Patents = 29

% Expired Patents = 20.7

EPO Patents = 21

Forward Citations = 146

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48 inventors (with patents filed for the assignee):

Ryuta Haga (8 out of 9 patents)

Hiroaki Mori (6 out of 13 patents)

Tetsuo Shiode (5 out of 7 patents)

4. Satoshi Goto (4 out of 21 patents)

5. Makiko Ijiri (4 out of 7 patents)

6. Katsuhiro Nagayama (4 out of 9 patents)

7. Hirofumi Yoshida (4 out of 4 patents)

8. Yukiko Nakamura (4 out of 5 patents)

9. Mikito Suto (3 out of 21 patents)

10. Akira Matsuzaki (3 out of 33 patents)

11. Yusuke Fushiwaki (3 out of 29 patents)

12. Kazuya Takemura (3 out of 12 patents)

13. Naoyuki Kitamura (3 out of 3 patents)

14. Ryota Yamaji (3 out of 3 patents)

15. Hiroaki Nakao (2 out of 2 patents)

Core Competencies:

Negative Electrode

Lithium Ion Battery

Carbon Material

Graphite Particles

Electrode Material

Phenolic Resin

Polyimide Composition

Thermally Cured Object

Activated Carbon

Ferrite Core

Amorphous Carbon

29 patents: Sort by Forward Citations

1. 12330946 - Carbon material for negative electrode of lithium ion secondary battery and method of producing the same, and negative electrode and lithium ion secondary battery using the carbon material (2025-06-17),

2. 11942641 - Method for producing carbonaceous substance-coated graphite particles (2024-03-26),

3. 11840452 - Spherically-shaped coated graphite, negative electrode for lithium ion secondary battery, and lithium ion secondary battery (2023-12-12),

4. 11804594 - Carbonaceous substance-coated graphite particles, negative electrode for lithium ion secondary battery, and lithium ion secondary battery (2023-10-31),

5. 11804593 - Carbonaceous substance-coated graphite particles, negative electrode for lithium ion secondary battery and lithium ion secondary battery (2023-10-31),

6. 10930929 - Negative-electrode material for Li-ion secondary cell, method for manufacturing said material, negative electrode for Li-ion-secondary-cell, and Li-ion secondary cell (2021-02-23),

7. 10906855 - Method for producing fluorenylidene diallylphenols, and fluorenylidene diallylphenols (2021-02-02),

8. 10865325 - Thermally curable composition, varnish thereof, and thermally cured object (2020-12-15),

9. 10604629 - Polyamide acid composition and polyimide composition (2020-03-31),

10. 10538660 - Method for producing dicyclopentadiene-modified phenolic resin (2020-01-21),

11. 10351660 - Phenolic resin composition, epoxy resin composition, and cured epoxy resin (2019-07-16),

12. 10174165 - Poly(amic acid) composition and polyimide composition (2019-01-08),

13. 10170752 - Method for producing amorphous carbon particle, amorphous carbon particles, negative electrode material for lithium ion secondary batteries, and lithium ion secondary battery (2019-01-01),

14. 9735421 - Method for producing amorphous carbon particles, amorphous carbon particles, negative electrode material for lithium ion secondary battery, and lithium ion secondary battery (2017-08-15),

15. 9607729 - Binder pitch and method for producing the same (2017-03-28),

JFE Chemical Corporation, headquartered in Tokyo, specializes in the development and manufacturing of advanced chemical products and materials. The company focuses on a variety of sectors, including automotive, electronics, and environmental solutions, leveraging innovative technologies to enhance performance and sustainability. With a commitment to research and development, JFE Chemical aims to address global challenges through its diverse portfolio, contributing to industries that require high-quality chemical solutions and materials.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

29 Patents

#1,087 in Tokyo

#2,359 in Japan

#22,530 in the World

Jfe Chemical Corporation

Forward Citations = 146

48 inventors:

Ryuta Haga (8 out of 9 patents)

Hiroaki Mori (6 out of 13 patents)

Tetsuo Shiode (5 out of 7 patents)

4. Satoshi Goto (4 out of 21 patents)

5. Makiko Ijiri (4 out of 7 patents)

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