Forward Citations = 0

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2 inventors (with patents filed for the assignee):

Tamio Nishimiya (2 out of 14 patents)

Tetsuya Ogasawara (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 12599973 - Structure and chuck (2026-04-14),

2. 12544873 - Automatic jig replacement system (2026-02-10),

3. 12539570 - Cam mechanism, cam mechanism manufacturing method, camshaft manufacturing method, NC rotary table (2026-02-03),

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

3 Patents

#4 in Fuchu

#8,932 in Japan

Fuchu, Japan

Kitagawa Iron Works Co., Ltd.

Forward Citations = 0

2 inventors:

Tamio Nishimiya (2 out of 14 patents)

Tetsuya Ogasawara (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kitagawa Iron Works Co., Ltd.. Retrieved from https://idiyas.com/company/kitagawa-iron-works

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]