Hayashikogyosyo Co., Ltd.

Calculating rank

USPTO Granted Patents = 7

% Expired Patents = 28.6

EPO Patents = 1

Forward Citations = 4

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7 inventors (with patents filed for the assignee):

Toru Kuroyanagi (6 out of 8 patents)

Takahiko Hobo (6 out of 6 patents)

Ko Kajita (5 out of 5 patents)

4. Hiroo Hayashi (1 out of 1 patent)

5. Ko Kajita (1 out of 3 patents)

6. Yong Ho Kim (1 out of 253 patents)

7. Min Mo Koo (1 out of 4 patents)

7 patents: Sort by Forward Citations

1. 11894734 - Method of manufacturing stator and device for manufacturing stator (2024-02-06),

2. 11888364 - Stator manufacturing method (2024-01-30),

3. 11362561 - Stator and stator coil having lead wires arranged to secure interphase insulation performance (2022-06-14),

4. 10998791 - Stator and rotating electric machine (2021-05-04),

5. 10998786 - Stator and method for manufacturing stator (2021-05-04),

6. 10811921 - Insulating member and stator (2020-10-20),

7. 10516312 - Stator coil, method for manufacturing stator, and rotating electrical machine (2019-12-24),

Company Overview

Hayashikogyosyo Co., Ltd. is a Japanese company that specializes in the manufacturing and distribution of high-quality industrial tools and equipment. With a history of over 50 years in the industry, Hayashikogyosyo has built a reputation for providing reliable products and excellent customer service. The company's products are used by a wide range of industries, including automotive, construction, and manufacturing.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

7 Patents

#1 in Nakatsugawa

#5,464 in Japan

Nakatsugawa, Japan

Hayashikogyosyo Co., Ltd.

Forward Citations = 4

7 inventors:

Toru Kuroyanagi (6 out of 8 patents)

Takahiko Hobo (6 out of 6 patents)

Ko Kajita (5 out of 5 patents)

4. Hiroo Hayashi (1 out of 1 patent)

5. Ko Kajita (1 out of 3 patents)

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

1 patent (EPO):

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]