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Hiroshima, Japan

Keylex Corporation

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USPTO Granted Patents = 19

% Expired Patents = 5.3

Forward Citations = 82

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48 inventors (with patents filed for the assignee):

Toshimasa Yamane (6 out of 6 patents)

Kenichi Hatakeyama (4 out of 4 patents)

Atsushi Nakasaki (3 out of 3 patents)

4. Tsuyoshi Itaoka (3 out of 3 patents)

5. Tomoyuki Shiokawa (2 out of 2 patents)

6. Ichirou Ino (2 out of 6 patents)

7. Kazunari Uehara (2 out of 2 patents)

8. Takeshi Furuta (2 out of 2 patents)

9. Satoshi Tagawa (2 out of 2 patents)

10. Keizo Kawasaki (2 out of 17 patents)

11. Yoshiaki Yamane (2 out of 2 patents)

12. Toshiaki Miyagawa (2 out of 2 patents)

13. Yoshihide Hirao (2 out of 4 patents)

14. Ryotaro Shinagawa (2 out of 2 patents)

15. Kenjiro Sugio (2 out of 2 patents)

19 patents: Sort by Forward Citations

1. 12121949 - Method for molding screw thread of metal pipe (2024-10-22),

2. 12064814 - Method for manufacturing αFe—SiC composite material, and αFe—SiC composite material (2024-08-20),

3. 11975364 - Component transfer device (2024-05-07),

4. 11858045 - Fe-based sintered body, Fe-based sintered body production method, and hot-pressing die (2024-01-02),

5. 11707795 - Welding apparatus and plate thickness testing method for welding apparatus (2023-07-25),

6. 11548378 - Fuel filler pipe (2023-01-10),

7. 11338668 - Fuel filler pipe (2022-05-24),

8. 11241864 - Insulator (2022-02-08),

9. 11203117 - Teaching data generation system for vertical multi-joint robot (2021-12-21),

10. 11110541 - Ultrasonic bonding machine (2021-09-07),

11. 10688594 - Fuel supply pipe assembly device (2020-06-23),

12. 10350663 - Press apparatus (2019-07-16),

13. 9981342 - Method for assembling fuel supply pipe, and fuel supply pipe assembly device (2018-05-29),

14. 9497360 - Electrode inspection apparatus for spot welding (2016-11-15),

15. 9321092 - Method for forming steel sheet by hot pressing (2016-04-26),

Company Overview

Keylex Corporation, based in Hiroshima, Japan, specializes in the development and manufacturing of advanced electronic components and systems. The company focuses on innovative solutions in the fields of telecommunications and industrial automation, leveraging cutting-edge technology to enhance connectivity and operational efficiency. With a commitment to research and development, Keylex aims to deliver high-quality products that meet the evolving needs of various industries, contributing to technological advancement and economic growth.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

19 Patents

#26 in Hiroshima, 729-3431

#3,041 in Japan

#32,705 in the World

Hiroshima, Japan

Keylex Corporation

Forward Citations = 82

48 inventors:

Toshimasa Yamane (6 out of 6 patents)

Kenichi Hatakeyama (4 out of 4 patents)

Atsushi Nakasaki (3 out of 3 patents)

4. Tsuyoshi Itaoka (3 out of 3 patents)

5. Tomoyuki Shiokawa (2 out of 2 patents)

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

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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