EPO Patents = 1

Forward Citations = 52

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10 inventors (with patents filed for the assignee):

Shoji Nakai (6 out of 6 patents)

Shuichiro Imai (3 out of 3 patents)

Toshio Yajima (2 out of 2 patents)

4. Terukazu Ohta (2 out of 2 patents)

5. Yoshiyasu Maeda (1 out of 12 patents)

6. Shuichiro Iami (1 out of 1 patent)

7. Tamotsu Kawamura (1 out of 1 patent)

8. Nobuhide Iwasaki (1 out of 1 patent)

9. Matsunosuke Yano (1 out of 1 patent)

10. Koji Akimoto (1 out of 1 patent)

11. Maeda Yoshiyasu (0 patent)

9 patents: Sort by Forward Citations

1. 9493323 - Fiber bundle guide (2016-11-15),

2. 5489067 - Turret type precision yarn winder (1996-02-06),

3. 5407143 - Turret type yarn winder (1995-04-18),

4. 5344090 - Turret type yarn winder (1994-09-06),

5. 5228630 - Turret type yarn winder (1993-07-20),

6. 4989799 - Apparatus for winding a multifilament with flat shape and broad width (1991-02-05),

7. 4613092 - Spindle assembly for winding machine (1986-09-23),

8. 4090676 - Yarn or thread guiding device (1978-05-23),

9. 3933318 - Tension control apparatus (1976-01-20),

Company Overview

Kamitsu Seisakusho Ltd. is a leading manufacturer of precision machined components and assemblies for various industries including automotive, aerospace, and medical. With over 50 years of experience, they are known for their high-quality products, state-of-the-art facilities, and commitment to customer satisfaction. Their capabilities include CNC machining, grinding, and assembly, and they have a strong focus on innovation and continuous improvement.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

9 Patents

#76 in Hyogo

#4,699 in Japan

Hyogo, Japan

Kamitsu Seisakusho Ltd.

Forward Citations = 52

10 inventors:

Shoji Nakai (6 out of 6 patents)

Shuichiro Imai (3 out of 3 patents)

Toshio Yajima (2 out of 2 patents)

4. Terukazu Ohta (2 out of 2 patents)

5. Yoshiyasu Maeda (1 out of 12 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Kamitsu Seisakusho Ltd.. Retrieved from https://idiyas.com/company/kamitsu-seisakusho

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]