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Shikoku Chemicals Corporation

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USPTO Granted Patents = 64

% Expired Patents = 4.7

EPO Patents = 19

Trademarks = 12

Forward Citations = 241

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91 inventors (with patents filed for the assignee):

Takayuki Murai (18 out of 18 patents)

Natsuo Sawa (16 out of 16 patents)

Hirohiko Hirao (15 out of 15 patents)

4. Noriaki Yamaji (8 out of 8 patents)

5. Takeshi Kumano (8 out of 9 patents)

6. Yoshimasa Kikukawa (7 out of 7 patents)

7. Takeshi Masuda (7 out of 7 patents)

8. Miya Tanioka (6 out of 6 patents)

9. Hajime Hata (6 out of 6 patents)

10. Naoto Okumura (5 out of 6 patents)

11. Seiji Sogabe (5 out of 5 patents)

12. Kazuo Kamagata (5 out of 5 patents)

13. Yoshiya Iwasaki (4 out of 5 patents)

14. Shusaku Iida (4 out of 4 patents)

15. Masato Katsumura (4 out of 4 patents)

Core Competencies:

Thiol Compounds

Imidazole Derivatives

Copper Surface Treatments

Epoxy Resins

Silane Compounds

Rubber Compositions

Metal Surface Treatment

Detergent Composition

Chemical Layer Formation

Aluminum Borate Whiskers

Granular Sulfur

Toner Production

64 patents: Sort by Forward Citations

1. 12692245 - Thiophene compound, method for synthesizing same, and composition containing said thiophene compound (2026-07-28),

2. 12091430 - Metal surface treatment liquid and liquid concentrate thereof, metal surface treatment liquid set, metal surface treatment method, and method for manufacturing printed wiring board (2024-09-17),

3. 11807596 - Thiol compounds, synthesis method therefor, and utilization of said thiol compounds (2023-11-07),

4. 11773207 - Thiol compound, method for synthesizing same, and uses for said thiol compound (2023-10-03),

5. 11702507 - Resin composition and use thereof (2023-07-18),

6. 11680076 - Triazole silane compound, method for synthesizing said compound and use thereof (2023-06-20),

7. 11472823 - Tetrazole silane compound, method for synthesizing said compound and use thereof (2022-10-18),

8. 11225788 - Roof structure and construction method thereof (2022-01-18),

9. 11078450 - Material containing solid bleaching agent, and detergent composition (2021-08-03),

10. 11014946 - Tetrazole silane compound, method for synthesizing said compound and use thereof (2021-05-25),

11. 10913731 - Epoxy-oxetane compound, method for synthesizing same, and use of said compound (2021-02-09),

12. 10550131 - Mercaptoethylglycol uril compound and utilization thereof (2020-02-04),

13. 10405422 - Copper film-forming agent and method for forming copper film (2019-09-03),

14. 10398028 - Surface treating composition for copper and copper alloy and utilization thereof (2019-08-27),

15. 10030023 - Mercaptoalkylglycolurils and use of same (2018-07-24),

Company Overview

Shikoku Chemicals Corporation, headquartered in Kagawa, Japan, specializes in the development and manufacturing of a diverse range of chemical compounds. The company focuses on innovative solutions in thiol compounds, imidazole derivatives, and silane compounds, catering to various industrial applications. Additionally, Shikoku Chemicals is recognized for its expertise in copper surface treatments, epoxy resins, rubber compositions, and detergent formulations, contributing significantly to advancements in metal surface treatment technologies.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

64 Patents

#3 in Kagawa

#1,487 in Japan

#11,489 in the World

Shikoku Chemicals Corporation

Forward Citations = 241

91 inventors:

Takayuki Murai (18 out of 18 patents)

Natsuo Sawa (16 out of 16 patents)

Hirohiko Hirao (15 out of 15 patents)

4. Noriaki Yamaji (8 out of 8 patents)

5. Takeshi Kumano (8 out of 9 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Shikoku Chemicals Corporation. Retrieved from https://idiyas.com/company/shikoku-chemicals

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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