Yukiwa Seiko Inc.

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USPTO Granted Patents = 7

Forward Citations = 26

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7 inventors (with patents filed for the assignee):

Kazuo Sakamaki (7 out of 23 patents)

Tadashi Taniguchi (7 out of 16 patents)

Koji Sakamaki (5 out of 5 patents)

4. Koichi Nakano (4 out of 4 patents)

5. Akira Sakamaki (2 out of 26 patents)

6. Chokichi Sato (2 out of 7 patents)

7. Kazuki Aoyagi (1 out of 2 patents)

7 patents: Sort by Forward Citations

1. 11364546 - Chuck apparatus (2022-06-21),

2. D837014 - Drill chuck (2019-01-01),

3. D837013 - Drill chuck (2019-01-01),

4. D837012 - Drill chuck (2019-01-01),

5. D837011 - Drill chuck (2019-01-01),

6. 7178216 - Keyless chuck and associated method (2007-02-20),

7. 6959931 - Keyless chuck and associated method (2005-11-01),

Company Overview

Yukiwa Seiko Inc. is a leading manufacturer of precision-engineered components and products, offering a wide range of high-quality parts and assemblies for various industries, including automotive, medical, and aerospace. With a strong commitment to innovation and quality, the company has built a solid reputation for excellence and reliability. Visit their website to learn more about their products and services.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 27 2026

7 Patents

#4 in Ojiya

#5,462 in Japan

Ojiya, Japan

Yukiwa Seiko Inc.

Forward Citations = 26

7 inventors:

Kazuo Sakamaki (7 out of 23 patents)

Tadashi Taniguchi (7 out of 16 patents)

Koji Sakamaki (5 out of 5 patents)

4. Koichi Nakano (4 out of 4 patents)

5. Akira Sakamaki (2 out of 26 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yukiwa Seiko Inc.. Retrieved from https://idiyas.com/company/yukiwa-seiko

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]