% Expired Patents = 40.0

Forward Citations = 7

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9 inventors (with patents filed for the assignee):

Masanori Watanabe (3 out of 84 patents)

Yudai Takagi (3 out of 10 patents)

Yuji Kurematsu (2 out of 75 patents)

4. Osamu Yoshida (2 out of 48 patents)

5. Masahiko Konno (1 out of 39 patents)

6. Shunji Sakura (1 out of 23 patents)

7. Tatsuya Hirai (1 out of 13 patents)

8. Koichi Saeda (1 out of 10 patents)

9. Yuko Sanada (1 out of 2 patents)

5 patents: Sort by Forward Citations

1. 10871209 - Chain and chain transmission device (2020-12-22),

2. 10871208 - Tensioner (2020-12-22),

3. 10851876 - Tensioner (2020-12-01),

4. 10837527 - Tensioner (2020-11-17),

5. 5214980 - Work rotating apparatus for laser machining having improved tilt angle (1993-06-01),

Company Overview

Tsubakimoto Chain Co. is a leading global manufacturer of power transmission and motion control products. With a history dating back to 1917, the company has consistently evolved to meet the changing needs of various industries. Tsubakimoto offers a wide range of products including roller chains, sprockets, conveyor systems, power cylinders, and more. Their commitment to innovation, quality, and customer satisfaction has made them a trusted name in the industry. Visit their website to learn more about their products and solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#717 in Osaka

#6,652 in Japan

Osaka, Japan

Tsubakimoto Chainco.

Forward Citations = 7

9 inventors:

Masanori Watanabe (3 out of 84 patents)

Yudai Takagi (3 out of 10 patents)

Yuji Kurematsu (2 out of 75 patents)

4. Osamu Yoshida (2 out of 48 patents)

5. Masahiko Konno (1 out of 39 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Tsubakimoto Chainco.. Retrieved from https://idiyas.com/company/tsubakimoto-chainco

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]