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Neturen Co., Ltd.

USPTO Granted Patents = 129

% Expired Patents = 8.5

CIPO Patents = 1

EPO Patents = 71

Trademarks = 9

Forward Citations = 353

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162 inventors (with patents filed for the assignee):

Fumiaki Ikuta (20 out of 20 patents)

Kazuhiro Kawasaki (19 out of 19 patents)

Takahiko Kanai (17 out of 17 patents)

4. Yoshimasa Tanaka (15 out of 33 patents)

5. Takashi Yamawaki (13 out of 13 patents)

6. Yoshitaka Misaka (10 out of 10 patents)

7. Ryosuke Suzuki (10 out of 20 patents)

8. Yutaka Kiyosawa (10 out of 10 patents)

9. Takashi Horino (9 out of 9 patents)

10. Masato Sugimoto (7 out of 7 patents)

11. Hironori Ooyama (7 out of 7 patents)

12. Yoshiaki Inoue (7 out of 58 patents)

13. Seiji Yokota (7 out of 7 patents)

14. Yoshiki Seto (7 out of 7 patents)

15. Tetsukazu Fukuhara (7 out of 7 patents)

Core Competencies:

Induction Heating

Heating Coil

Power Supply Device

Heat Treatment

Direct Resistance Heating

Induction Hardening

Welding Method

Cooling Jacket

Manufacturing Method

Rack Bar

Quenching Apparatus

Surface Nitriding

129 patents: Sort by Forward Citations

1. 12752314 - Method and apparatus for cleaning carrier film (2026-10-06),

2. 12706545 - Dual-frequency power-supply apparatus, high-frequency heating apparatus, and high-frequency quenching apparatus (2026-08-11),

3. 12383974 - Steel joined body and method for manufacturing the same (2025-08-12),

4. 12246389 - Steel joined body and method for manufacturing the same (2025-03-11),

5. 12245347 - Induction heating system, induction heating method, output monitoring apparatus, output monitoring method, and induction heating apparatus (2025-03-04),

6. 12133315 - Snubber circuit, power semiconductor module, and induction heating power supply device (2024-10-29),

7. 12116644 - Cooling jacket and quenching apparatus (2024-10-15),

8. 12114410 - Heating coil and heating method (2024-10-08),

9. 12075549 - Heating coil, heating apparatus and manufacturing method of workpiece (2024-08-27),

10. 12053816 - Apparatus and method for manufacturing rack bar (2024-08-06),

11. 12048070 - Direct resistance heating apparatus, direct resistance heating method, heating apparatus, heating method, and hot-press molding method (2024-07-23),

12. 12023721 - Wire winding device and wire treatment system (2024-07-02),

13. 12011775 - Steel joined body and method for manufacturing the same (2024-06-18),

14. 11980929 - Manufacturing method for hollow rack bar and hollow rack bar manufacturing apparatus (2024-05-14),

15. 11729868 - Induction heating device, induction heating equipment, induction heating method, and heat treatment method (2023-08-15),

Company Overview

Neturen Co., Ltd., based in Tokyo, specializes in induction heating technology, focusing on the development and manufacturing of advanced heating solutions. The company is recognized for its expertise in induction heating systems, including heating coils and power supply devices, which are essential for various industrial applications such as heat treatment, induction hardening, and welding methods. With a commitment to innovation, Neturen also explores cooling jacket technologies, enhancing efficiency and performance in thermal processes.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

129 Patents

#468 in Tokyo

#954 in Japan

#6,229 in the World

Neturen Co., Ltd.

Forward Citations = 353

162 inventors:

Fumiaki Ikuta (20 out of 20 patents)

Kazuhiro Kawasaki (19 out of 19 patents)

Takahiko Kanai (17 out of 17 patents)

4. Yoshimasa Tanaka (15 out of 33 patents)

5. Takashi Yamawaki (13 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Neturen Co., Ltd.. Retrieved from https://idiyas.com/company/neturen-company

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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