Yokohama, Japan

Nkh Spring Co., Ltd.


USPTO Granted Patents = 4

Forward Citations = 51

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7 inventors (with patents filed for the assignee):

goldMedal Takeshi Uchida (1 out of 66 patents)

silverMedal Hiroyoshi Yamaguchi (1 out of 32 patents)

bronzeMedal Hideki Fuchino (1 out of 1 patent)

4.  Takeyoshi Shimbori (1 out of 5 patents)

5.  Hajime Shono (1 out of 5 patents)

6.  Juji Ojima (1 out of 48 patents)

7.  Isao Hino (1 out of 5 patents)


4 patents:

Company Overview
NKH Spring Co., Ltd. is a leading manufacturer of automotive suspension springs. With over 30 years of experience in the industry, we specialize in producing high quality springs for various car models. Our state-of-the-art manufacturing facility and strict quality control processes ensure that our products meet the highest standards. We are committed to providing our customers with innovative solutions and excellent service.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

4 Patents

#135 in Yokohama

#7,573 in Japan

Yokohama, JP
Yokohama, Japan
Forward Citations = 51

7 inventors:

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nkh Spring Co., Ltd.. Retrieved from https://idiyas.com/company/nkh-spring-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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