Forward Citations = 60

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4 inventors (with patents filed for the assignee):

Kouichi Takamatsu (2 out of 2 patents)

Tatsuya Gomi (1 out of 5 patents)

Masaji Nishikawa (1 out of 1 patent)

4. Hajime Takayama (1 out of 1 patent)

4 patents: Sort by Forward Citations

1. 5950850 - Sealing device and container (1999-09-14),

2. 5860542 - Sealing device and container (1999-01-19),

3. 4684426 - Method of manufacturing a container cap with a concealed mark (1987-08-04),

4. 4623070 - Closure cap (1986-11-18),

Company Overview

Shibazaki Seisakusho, Ltd. is a leading manufacturing company specializing in precision components and machinery. With over 50 years of experience in the industry, we are known for our high-quality products and commitment to customer satisfaction. Our state-of-the-art facilities and skilled workforce enable us to provide innovative solutions for various industries, including automotive, aerospace, and electronics. We strive for excellence in every aspect of our business, from design and engineering to production and quality control.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

4 Patents

#81 in Chiba

#7,588 in Japan

Chiba, Japan

Shibazaki Seisakusho, Ltd.

Forward Citations = 60

4 inventors:

Kouichi Takamatsu (2 out of 2 patents)

Tatsuya Gomi (1 out of 5 patents)

Masaji Nishikawa (1 out of 1 patent)

4. Hajime Takayama (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Shibazaki Seisakusho, Ltd.. Retrieved from https://idiyas.com/company/shibazaki-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]