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Tanaka Chemical Corporation

USPTO Granted Patents = 32

% Expired Patents = 6.3

EPO Patents = 10

Trademarks = 3

Forward Citations = 59

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61 inventors (with patents filed for the assignee):

Yusuke Maeda (9 out of 9 patents)

Kenji Takamori (9 out of 16 patents)

Hiroyuki Kurita (7 out of 10 patents)

4. Yuichiro Imanari (7 out of 22 patents)

5. Jun-ichi Kageura (6 out of 11 patents)

6. Takashi Arimura (5 out of 9 patents)

7. Daisuke Yamashita (5 out of 8 patents)

8. Yasutaka Iida (4 out of 4 patents)

9. Kimiyasu Nakao (4 out of 4 patents)

10. Kyousuke Doumae (4 out of 6 patents)

11. Hiroyuki Ito (4 out of 4 patents)

12. Toyoshi Iida (4 out of 5 patents)

13. Hideka Shibuya (3 out of 4 patents)

14. Noriyuki Tamura (3 out of 25 patents)

15. Ryota Yuge (3 out of 38 patents)

Core Competencies:

Lithium Composite Metal Compound

Positive Electrode Active Material

Nickel Hydroxide

Lithium Secondary Battery

Cobalt-Manganese Oxide

Electrolytic Oxidation

Transition Metal Oxide

Production Methods

Alkaline Battery

Lithium Hydroxide

32 patents: Sort by Forward Citations

1. 12401032 - Nickel composite hydroxide, positive electrode active material using nickel composite hydroxide as precursor, and methods for producing the same (2025-08-26),

2. 12176531 - Lithium-containing transition metal composite oxide, positive electrode active material for lithium secondary battery, positive electrode for lithium secondary battery, lithium secondary battery, and method for manufacturing lithium-containing transition metal composite oxide (2024-12-24),

3. 12172906 - Precursor for lithium secondary battery positive electrode active materials, method for producing precursor for lithium secondary battery positive electrode active materials, and method for producing lithium composite metal compound (2024-12-24),

4. 11949101 - Lithium composite metal compound, positive electrode active material for lithium secondary battery, positive electrode for lithium secondary battery, lithium secondary battery, and method for manufacturing lithium composite metal compound (2024-04-02),

5. 11932548 - Method for manufacturing lithium hydroxide powder, method for manufacturing positive electrode active material for lithium secondary cell, and package (2024-03-19),

6. 11855247 - Lithium-containing transition metal composite oxide, positive electrode active material for lithium secondary battery, positive electrode for lithium secondary battery, lithium secondary battery, and method for manufacturing lithium-containing transition metal composite oxide (2023-12-26),

7. 11557754 - Positive electrode active material for lithium secondary batteries, positive electrode for lithium secondary batteries, and lithium secondary battery (2023-01-17),

8. 11532814 - Lithium nickel cobalt composite oxide positive active material, positive electrode, and lithium secondary battery using the same (2022-12-20),

9. 11437618 - Positive electrode active material for lithium secondary batteries, method of producing positive electrode active material for lithium secondary batteries, positive electrode for lithium secondary batteries, and lithium secondary battery (2022-09-06),

10. 11417881 - Lithium-manganese complex oxide and method for producing same (2022-08-16),

11. 11417879 - Positive electrode active material for lithium secondary batteries, positive electrode for lithium secondary batteries, and lithium secondary battery (2022-08-16),

12. 11365130 - Positive electrode active material precursor for lithium secondary battery, and method for manufacturing positive electrode active material for lithium secondary battery (2022-06-21),

13. 11283073 - Positive electrode active material for lithium secondary battery, positive electrode for lithium secondary battery, and lithium secondary battery (2022-03-22),

14. 11088366 - Positive electrode active material for lithium secondary batteries, positive electrode for lithium secondary batteries, and lithium secondary battery (2021-08-10),

15. 11024847 - Positive electrode active material for lithium secondary batteries, positive electrode for lithium secondary batteries, and lithium secondary battery (2021-06-01),

Company Overview

Tanaka Chemical Corporation is a leading manufacturer specializing in advanced materials and chemical products. The company focuses on the development of high-performance materials for various industries, including electronics, automotive, and medical sectors. With a strong emphasis on innovation, Tanaka Chemical leverages its expertise in material science to create solutions that enhance product performance and sustainability. Headquartered in Fukui, Japan, the company is committed to advancing technology through research and development in its core domains.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

32 Patents

#5 in Fukui

#2,240 in Japan

#20,697 in the World

Tanaka Chemical Corporation

Forward Citations = 59

61 inventors:

Yusuke Maeda (9 out of 9 patents)

Kenji Takamori (9 out of 16 patents)

Hiroyuki Kurita (7 out of 10 patents)

4. Yuichiro Imanari (7 out of 22 patents)

5. Jun-ichi Kageura (6 out of 11 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tanaka Chemical Corporation. Retrieved from https://idiyas.com/company/tanaka-chemical

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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