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For the Inventor, By the Inventor

Tokyo, Japan

Riken Technos Corporation

USPTO Granted Patents = 83

% Expired Patents = 7.2


Trademarks = 8

Forward Citations = 198

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72 inventors (with patents filed for the assignee):

goldMedal Taketo Hashimoto (18 out of 18 patents)

silverMedal Nozomu Washio (17 out of 17 patents)

bronzeMedal Michihisa Tasaka (12 out of 19 patents)

4.  Motohiro Shimizu (10 out of 12 patents)

5.  Kohei Nakashima (6 out of 8 patents)

6.  Hitomi Inomata (5 out of 5 patents)

7.  Jun Fujimoto (5 out of 70 patents)

8.  Hidemasa Sugimoto (5 out of 5 patents)

9.  Tomohiro Takahashi (4 out of 63 patents)

10.  Shigekazu Ito (4 out of 4 patents)

11.  Toshimi Yamanaka (4 out of 6 patents)

12.  Masataka Mori (3 out of 9 patents)

13.  Yasuhiro Itagaki (3 out of 4 patents)

14.  Hideaki Yambe (3 out of 3 patents)

15.  Shoko Nakajima (3 out of 3 patents)


Core Competencies:
Thermoplastic Resin
Hard Coat Film
Adhesive Film
Multilayer Film
Active Energy Curable Resin
Flake-like Material
Anti-Glare Coating
Electrical Wire Molded Body
Decorative Sheet
Scratch-Resistant Film
Heat-Shielding Film
Extrusion Molded Article

83 patents:

1. 12662729 - Composite film manufacturing method and organic/inorganic hybrid film manufacturing method (2026-06-23),
2. 12528965 - Active energy curable resin composition, hard coat laminated film, and film for application to glass (2026-01-20),
3. 12459818 - Method for manipulating flake-like material and method for producing article containing flake-like material (2025-11-04),
4. 12043775 - Adhesive film (2024-07-23),
5. 11987692 - Thermoplastic resin compositions, adhesive coating materials, and laminates using the same (2024-05-21),
6. 11774166 - Door body (2023-10-03),
7. 11773229 - Hard coat laminated film (2023-10-03),
8. 11655347 - Organic-inorganic hybrid membrane (2023-05-23),
9. 11639428 - Hardcoat multilayer film (2023-05-02),
10. 11549031 - Coating material for forming matte hard coat, and decorative sheet using same (2023-01-10),
11. 11512194 - Thermoplastic resin composition for wire-coating and heat resistant wire (2022-11-29),
12. 11512176 - Anti-glare hard coat laminated film (2022-11-29),
13. 11466111 - Coating material for formation of matte hard coat, and decorative sheet using same (2022-10-11),
14. 11465323 - Method for producing multilayer film (2022-10-11),
15. 11459489 - Pressure-sensitive adhesive and articles including same (2022-10-04),
Company Overview
Riken Technos Corporation, headquartered in Tokyo, specializes in the development and manufacturing of advanced thermoplastic resin compositions. The company focuses on a diverse range of products, including hard coat films, adhesive films, and multilayer films, which are essential in various industrial applications. Riken Technos is also known for its innovations in active energy curable resins, flake-like materials, and anti-glare coatings, contributing significantly to sectors such as electronics and automotive engineering.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

83 Patents

#612 in Tokyo

#1,272 in Japan

#9,158 in the World

Tokyo, JP
Tokyo, Japan

Riken Technos Corporation

Forward Citations = 198

72 inventors:

goldMedal Taketo Hashimoto (18 out of 18 patents)

silverMedal Nozomu Washio (17 out of 17 patents)

bronzeMedal Michihisa Tasaka (12 out of 19 patents)

4.  Motohiro Shimizu (10 out of 12 patents)

5.  Kohei Nakashima (6 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Riken Technos Corporation. Retrieved from https://idiyas.com/company/riken-technos

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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