Osaka, Japan

Jiro Kamezawa

This inventor holds 2 USPTO granted patents. Top assignee: Tomoe Technical Research Company Ltd.. Active years: 1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Jiro Kamezawa. Retrieved from https://idiyas.com/inventor/jiro-kamezawa

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 1.0

ph-index = 2

Forward Citations = 41(Granted Patents)


Location History:

  • Osaka, JP (1996)
  • Higashi-Osaka, JP (1996)

Company Filing History:


Years Active: 1996

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2 patents (USPTO):Explore Patents

Title: Jiro Kamezawa: Innovator in Valve Technology

Introduction

Jiro Kamezawa is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of valve technology, holding a total of 2 patents. His innovative designs focus on enhancing the functionality and efficiency of valve systems.

Latest Patents

Kamezawa's latest patents include a manual device for a valve and a seat ring for a butterfly valve. The manual device features a movable valve opening member that allows for precise control of fluid passage. It includes a notch plate that moves freely and is designed to maintain various degrees of valve opening while ensuring a simple structure and long lifespan. The second patent, related to the seat ring, is designed to prevent fluid leakage in butterfly valves. It incorporates a resiliently fitted seat ring that enhances the sealing capability of the valve, ensuring reliable operation.

Career Highlights

Jiro Kamezawa is associated with Tomoe Technical Research Company Ltd., where he continues to develop innovative solutions in valve technology. His work has been instrumental in advancing the design and functionality of valve systems, making them more efficient and reliable.

Conclusion

Jiro Kamezawa's contributions to valve technology through his patents demonstrate his commitment to innovation and excellence in engineering. His work not only enhances the performance of valve systems but also sets a standard for future developments in the field.

Profile summary based on public USPTO records.
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]
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