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Nagase Chemtex Corporation

USPTO Granted Patents = 42

% Expired Patents = 19.0

EPO Patents = 24

Trademarks = 3

Forward Citations = 76

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75 inventors (with patents filed for the assignee):

Takayuki Hashimoto (6 out of 6 patents)

Eiichi Nomura (4 out of 4 patents)

Katsushi Kan (4 out of 4 patents)

4. Yosuke Oi (4 out of 4 patents)

5. Takuya Ishibashi (3 out of 3 patents)

6. Kazuki Nishimura (3 out of 3 patents)

7. Hiroshi Nagata (3 out of 3 patents)

8. Hiroaki Ozoe (3 out of 3 patents)

9. Hirofumi Nishida (3 out of 3 patents)

10. Koji Watanabe (3 out of 84 patents)

11. Daisuke Nakamura (3 out of 18 patents)

12. Yutaka Miyamoto (2 out of 2 patents)

13. Yuki Maeda (2 out of 2 patents)

14. Tatsuya Ohori (2 out of 2 patents)

15. Yutaka Tsujimura (2 out of 2 patents)

Core Competencies:

Cell Treatment Agent

Multi-Layer Sheet

Inorganic Oxide Microparticle

Photocurable Resin

Epoxy Resin Composition

Nano-Metal Ink

All-Solid-State Lithium-Sulfur Battery

Impact-Resistant Polyamide

Optical Adhesive Composition

Endotoxin Adsorbent

Electric Conductive Fiber

Color Coating Compositions

42 patents: Sort by Forward Citations

1. 12410395 - Cell treatment agent (2025-09-09),

2. 12362310 - Multi-layer sheet for mold underfill encapsulation, method for mold underfill encapsulation, electronic component mounting substrate, and production method for electronic component (2025-07-15),

3. 12152159 - Inorganic oxide microparticle dispersion (2024-11-26),

4. 12129392 - Resin composition for imprinting (2024-10-29),

5. 12084528 - Photocurable resin composition and resin cured product (2024-09-10),

6. 11891462 - Photocurable resin composition and 3D stereolithography product using same (2024-02-06),

7. 11848659 - Manufacturing method of mounting structure, and sheet therefor (2023-12-19),

8. 11799442 - Manufacturing method of mounting structure, and laminate sheet therefor (2023-10-24),

9. 11760870 - Resin composition for encapsulation (2023-09-19),

10. 11718770 - Curable resin composition and curable sheet (2023-08-08),

11. 11710645 - Manufacturing method of mounting structure, and sheet therefor (2023-07-25),

12. 11660788 - Method for producing sealed structure (2023-05-30),

13. 11608435 - Epoxy resin composition, electronic component mounting structure, and method for producing the same (2023-03-21),

14. 11434322 - Sulfobetaine group-comprising reactive compound, polymer thereof, and method of producing the polymer (2022-09-06),

15. 11410898 - Manufacturing method of mounting structure, and sheet therefor (2022-08-09),

Company Overview

Nagase Chemtex Corporation, based in Osaka, Japan, specializes in the development and manufacturing of advanced materials and chemical products. The company focuses on innovative technologies such as cell treatment agents, multi-layer sheets, and various resin compositions, including photocurable and epoxy resins. Additionally, Nagase Chemtex is engaged in producing inorganic oxide microparticles, endotoxin adsorbents, electric conductive fibers, and nano-metal inks, catering to diverse industries and applications.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

42 Patents

#207 in Osaka

#1,911 in Japan

#16,354 in the World

Nagase Chemtex Corporation

Forward Citations = 76

75 inventors:

Takayuki Hashimoto (6 out of 6 patents)

Eiichi Nomura (4 out of 4 patents)

Katsushi Kan (4 out of 4 patents)

4. Yosuke Oi (4 out of 4 patents)

5. Takuya Ishibashi (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nagase Chemtex Corporation. Retrieved from https://idiyas.com/company/nagase-chemtex

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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