Nagano, Japan

Hiroshi Zenisawa

This inventor holds 2 USPTO granted patents. Top assignee: Kabushiki Kaisha Sankyo Seiki Seisakusho. Active years: 1995-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Zenisawa. Retrieved from https://idiyas.com/inventor/hiroshi-zenisawa

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


% Patents Active = 100.0

Average Co-Inventor Count = 4.2

ph-index = 2

Forward Citations = 19(Granted Patents)


Company Filing History:


Years Active: 1995-2003

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2 patents (USPTO):Explore Patents

Title: Hiroshi Zenisawa: Innovator in Dynamic Pressure Bearings and Electric Machines

Introduction

Hiroshi Zenisawa is a notable inventor based in Nagano, Japan. He has made significant contributions to the field of engineering, particularly in the development of dynamic pressure bearing devices and laminated cores for rotating electric machines. With a total of 2 patents, Zenisawa's work showcases his innovative approach to solving complex engineering challenges.

Latest Patents

Zenisawa's latest patents include a dynamic pressure bearing device and a method of manufacturing the same. This invention involves a shaft member and a thrust plate with a press-fitting portion designed for the shaft member. The design incorporates at least two relief portions to absorb press-fitting stress, ensuring the thrust plate extends perpendicular to the shaft member's axial direction. His second patent focuses on a laminated core for a rotating electric machine, which consists of multiple single-sheet cores. Each core is formed by arranging salient poles on a beltlike yoke plate, which is then wound into a cylindrical shape. This innovative design allows for efficient interaction with magnets and enhances the performance of electric machines.

Career Highlights

Hiroshi Zenisawa is currently employed at Kabushiki Kaisha Sankyo Seiki Seisakusho, where he continues to develop cutting-edge technologies. His work has been instrumental in advancing the capabilities of dynamic pressure bearings and electric machines, contributing to the overall progress in these fields.

Collaborations

Zenisawa has collaborated with notable coworkers, including Masayuki Ishikawa and Hirotaka Sakamaki. Their combined expertise has fostered an environment of innovation and creativity, leading to the successful development of new technologies.

Conclusion

Hiroshi Zenisawa's contributions to engineering through his patents and collaborative efforts highlight his role as a key innovator in the industry. His work continues to influence the development of advanced technologies in dynamic pressure bearings and electric machines.

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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