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For the Inventor, By the Inventor

Tokyo, Japan

Nichias Corporation


USPTO Granted Patents = 256

% Expired Patents = 27.3



Trademarks = 11

Forward Citations = 1,649

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373 inventors (with patents filed for the assignee):

goldMedal Takahiro Niwa (25 out of 25 patents)

silverMedal Kazuhisa Watanabe (15 out of 15 patents)

bronzeMedal Masaaki Nakayama (15 out of 38 patents)

4.  Masaji Kurosawa (13 out of 15 patents)

5.  Yoshifumi Fujita (12 out of 12 patents)

6.  Kazuo Nishimoto (12 out of 12 patents)

7.  Tetsuya Mihara (11 out of 11 patents)

8.  Yoshiyuki Motoyoshi (10 out of 13 patents)

9.  Nobuya Tomosue (10 out of 10 patents)

10.  Tomoya Shimizu (9 out of 14 patents)

11.  Isami Abe (9 out of 10 patents)

12.  Ken Yonaiyama (9 out of 9 patents)

13.  Osamu Horiuchi (9 out of 11 patents)

14.  Katsuhiro Yamashita (9 out of 28 patents)

15.  Kanji Hanashima (9 out of 10 patents)


Core Competencies:
Fluoropolymer
Crosslinking Agent
Thermal Insulation
Soundproof Material
Gasket
Heating Device
Molded Article
Internal Combustion Engine
Heat-Resistant Roll
Biosoluble Inorganic Fiber
Absorption Rotor
Pipe Cover

256 patents:

1. 12716006 - Ink composition for screen printing and method for producing printed matter (2026-08-25),
2. 12583995 - Compound, crosslinking agent and crosslinked fluoroelastomer (2026-03-24),
3. 12415898 - Porous body (2025-09-16),
4. 12305107 - Perfluoroelastomer composition, cross-linked perfluoroelastomer and molded article (2025-05-20),
5. 12292210 - Dehumidifying member, dehumidifying rotor, and manufacturing method of dehumidifying member (2025-05-06),
6. 12292092 - Shim for disk brakes, and disk brake (2025-05-06),
7. 12135086 - Material for gasket (2024-11-05),
8. 12087262 - Soundproof member (2024-09-10),
9. 11767389 - Crosslinking agent and fluorine-containing aromatic compound (2023-09-26),
10. 11635144 - Multi-layered metal sheet (2023-04-25),
11. 11535004 - Soundproofing material (2022-12-27),
12. 11333216 - Connector (2022-05-17),
13. 11215309 - Heating device and method of heating a heated object using the same (2022-01-04),
14. 11193040 - Coating agent for rubber-coated cylinder head gasket and cylinder head gasket (2021-12-07),
15. 11118651 - Connector (2021-09-14),
Company Overview
Nichias Corporation, headquartered in Tokyo, specializes in advanced fluoroelastomer technology, focusing on the development and manufacturing of high-performance materials. The company is recognized for its expertise in fluoropolymers and crosslinking agents, which are essential in various applications including thermal insulation, soundproof materials, and gaskets. Nichias also innovates in heating devices and molded articles, contributing significantly to industries such as automotive and construction, where reliability and durability are paramount.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

256 Patents

#302 in Tokyo

#596 in Japan

#3,412 in the World

Tokyo, JP
Tokyo, Japan

Nichias Corporation

Forward Citations = 1,649

373 inventors:

goldMedal Takahiro Niwa (25 out of 25 patents)

silverMedal Kazuhisa Watanabe (15 out of 15 patents)

bronzeMedal Masaaki Nakayama (15 out of 38 patents)

4.  Masaji Kurosawa (13 out of 15 patents)

5.  Yoshifumi Fujita (12 out of 12 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nichias Corporation. Retrieved from https://idiyas.com/company/nichias

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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