% Expired Patents = 50.0

Trademarks = 1

Forward Citations = 5

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6 inventors (with patents filed for the assignee):

Isami Katsumoto (1 out of 1 patent)

Noriaki Hayashi (1 out of 1 patent)

Masaru Kagawa (1 out of 2 patents)

4. Koichiro Shioaki (1 out of 1 patent)

5. Rumi Tsuchiya (1 out of 1 patent)

6. Takahiko Mitani (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 6755481 - Cutting blade and method for cutting pavement in a circle (2004-06-29),

2. 6579560 - Soybean processed food and method of producing the same (2003-06-17),

Company Overview

Sanko Corporation Ltd. is a global manufacturing company specialized in providing innovative solutions for various industries. With over 50 years of experience, Sanko has established itself as a reliable and trusted partner in the market. Our comprehensive product range includes industrial machinery, electronic components, automotive parts, and consumer goods. We strive to exceed customer expectations by delivering high-quality products, utilizing advanced technologies, and maintaining strict quality control. Sanko is committed to sustainability and environmental responsibility, ensuring our manufacturing processes are eco-friendly. Our mission is to contribute to the progress and development of industries worldwide through continuous innovation and customer satisfaction.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#3 in Hirakata

#11,124 in Japan

Hirakata, Japan

Sanko Corporation Ltd.

Forward Citations = 5

6 inventors:

Isami Katsumoto (1 out of 1 patent)

Noriaki Hayashi (1 out of 1 patent)

Masaru Kagawa (1 out of 2 patents)

4. Koichiro Shioaki (1 out of 1 patent)

5. Rumi Tsuchiya (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sanko Corporation Ltd.. Retrieved from https://idiyas.com/company/sanko

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]