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Toyochem Co., Ltd.

USPTO Granted Patents = 15

EPO Patents = 3

Forward Citations = 16

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39 inventors (with patents filed for the assignee):

Tsutomu Hayasaka (5 out of 5 patents)

Kazunori Matsudo (4 out of 4 patents)

Hidenobu Kobayashi (3 out of 3 patents)

4. Tetsuya Natsumoto (3 out of 3 patents)

5. Kenji Ando (3 out of 3 patents)

6. Shota Mori (3 out of 3 patents)

7. Toshiichi Sawaguchi (2 out of 3 patents)

8. Naohiro Tanaka (2 out of 3 patents)

9. Kaori Sakaguchi (2 out of 6 patents)

10. Kenji Andou (2 out of 2 patents)

11. Hiroyuki Hayashi (2 out of 53 patents)

12. Yoshitaka Tone (2 out of 4 patents)

13. Toru Oya (2 out of 7 patents)

14. Daisuke Kishi (2 out of 3 patents)

15. Takahiro Matsuzawa (2 out of 6 patents)

15 patents: Sort by Forward Citations

1. 12444698 - Electronic component-mounting substrate and electronic device (2025-10-14),

2. 11990420 - Electromagnetic wave shielding sheet (2024-05-21),

3. 11825632 - Thermally conductive insulating sheet, and composite member (2023-11-21),

4. 11533833 - Electromagnetic wave shielding sheet and printed wiring board (2022-12-20),

5. 11434396 - Synthetic rubber pressure-sensitive adhesive, pressure-sensitive adhesive sheet, and polishing member laminate (2022-09-06),

6. 11407201 - Composite member (2022-08-09),

7. 11208565 - Water-soluble paint and coated can (2021-12-28),

8. 11172599 - Electromagnetic-wave shielding sheet and electronic component-mounted substrate (2021-11-09),

9. 11130890 - Adhesive composition, adhesive sheet, and method for producing same (2021-09-28),

10. 11084192 - Fabric-like material for reinforcement in urethane foam molding, and method for producing urethane foam molded body utilizing same (2021-08-10),

11. 10858557 - Adhesive and adhesive tape (2020-12-08),

12. 10820457 - Electromagnetic wave shielding sheet and printed wiring board (2020-10-27),

13. 9951259 - Adhesive composition and laminate (2018-04-24),

14. 9825264 - Electricity storage device, electricity storage device container, and electricity storage device packaging material (2017-11-21),

15. 9549473 - Printed wiring board, printed wiring board manufacturing method, and electronic device (2017-01-17),

Company Overview

Toyochem Co., Ltd., based in Tokyo, specializes in the development and manufacturing of advanced chemical products, including specialty chemicals and materials for various industries. The company focuses on innovative solutions in fields such as electronics, automotive, and healthcare, leveraging its expertise in chemical engineering and materials science. With a commitment to research and development, Toyochem aims to enhance product performance and sustainability across its diverse portfolio, catering to both domestic and international markets.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

15 Patents

#1,540 in Tokyo

#3,443 in Japan

#39,921 in the World

Toyochem Co., Ltd.

Forward Citations = 16

39 inventors:

Tsutomu Hayasaka (5 out of 5 patents)

Kazunori Matsudo (4 out of 4 patents)

Hidenobu Kobayashi (3 out of 3 patents)

4. Tetsuya Natsumoto (3 out of 3 patents)

5. Kenji Ando (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Toyochem Co., Ltd.. Retrieved from https://idiyas.com/company/toyochem-company

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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