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For the Inventor, By the Inventor

Saitama, Japan

Asahi Rubber Inc.

Calculating rank
USPTO Granted Patents = 26

% Expired Patents = 7.7


Trademarks = 2

Forward Citations = 206

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58 inventors (with patents filed for the assignee):

goldMedal Masutsugu Tasaki (14 out of 16 patents)

silverMedal Naoto Igarashi (6 out of 6 patents)

bronzeMedal Akira Ichikawa (6 out of 37 patents)

4.  Tsutomu Odaki (5 out of 7 patents)

5.  Takayuki Motoyanagi (5 out of 5 patents)

6.  Maimi Yoshida (4 out of 4 patents)

7.  Takashi Kanahira (3 out of 3 patents)

8.  Hideaki Sato (3 out of 67 patents)

9.  Nobuyuki Tomizawa (3 out of 3 patents)

10.  Takeru Kawaguchi (3 out of 3 patents)

11.  Eiji Ishiguro (2 out of 2 patents)

12.  Naoya Mashiko (2 out of 2 patents)

13.  Satoshi Endo (2 out of 25 patents)

14.  Yuta Ito (2 out of 13 patents)

15.  Nobuyoshi Watanabe (2 out of 3 patents)


Core Competencies:
Ultraviolet LED
Optical Member
Synthetic Resin
Silicone Resin
Light Source
Reflective Substrate
LED Lighting
Lens
Color Reflecting Material
Cell Culture
Soldering Method
Liquid Crystal Display

26 patents:

1. 12270977 - Ultraviolet led optical member (2025-04-08),
2. 12194697 - Method for modifying optical properties of synthetic resin (2025-01-14),
3. 12092792 - Optical member with reduced low-molecular-weight siloxane content, and method for producing same (2024-09-17),
4. 11946443 - Bonded body of object to be bonded to and functional base material (2024-04-02),
5. 11484859 - Airflow generation device and manufacturing method for same (2022-11-01),
6. 11476395 - Light source, LED device, and light emitting display structure (2022-10-18),
7. 11472945 - Slidable rubber material having an amino-modified interfacial modification layer, and method for producing said slidable rubber material (2022-10-18),
8. 11326065 - Silicone resin reflective substrate, manufacturing method for same, and base material composition used in reflective substrate (2022-05-10),
9. 11094857 - Method for manufacturing lighting device (2021-08-17),
10. 10563159 - Cell-holding container and cell culture method using same (2020-02-18),
11. 10533094 - Silicone resin reflective substrate, manufacturing method for same, and base material composition used in reflective substrate (2020-01-14),
12. 10351713 - Ink for white reflective film, powder coating material for white reflective film, production method of white reflective film, white reflective film, light source mount, and lighting device shade (2019-07-16),
13. 9803829 - Light distribution lens (2017-10-31),
14. 9663664 - Ink for white reflective film, powder coating material for white reflective film, production method of white reflective film, white reflective film, light source mount, and lighting device shade (2017-05-30),
15. 9574050 - Silicone resin reflective substrate, manufacturing method for same, and base material composition used in reflective substrate (2017-02-21),
Company Overview
Asahi Rubber Inc., based in Saitama, Japan, specializes in the development and manufacturing of rubber products for various industries. The company focuses on innovative solutions in automotive components, industrial materials, and consumer goods, leveraging advanced technologies to enhance product performance and durability. With a commitment to quality and sustainability, Asahi Rubber aims to meet the evolving needs of its global clientele while contributing to advancements in material science and engineering.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

26 Patents

#51 in Saitama 343-0827

#2,509 in Japan

#24,848 in the World

Saitama, JP
Saitama, Japan

Asahi Rubber Inc.

Forward Citations = 206

58 inventors:

goldMedal Masutsugu Tasaki (14 out of 16 patents)

silverMedal Naoto Igarashi (6 out of 6 patents)

bronzeMedal Akira Ichikawa (6 out of 37 patents)

4.  Tsutomu Odaki (5 out of 7 patents)

5.  Takayuki Motoyanagi (5 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Asahi Rubber Inc.. Retrieved from https://idiyas.com/company/asahi-rubber

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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