Chiba, Japan

Shigeyoshi Nakatsuji

This inventor holds 1 USPTO granted patent and 3 published patent applications. Top assignee: Edwards Japan Limited. Active years: 2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeyoshi Nakatsuji. Retrieved from https://idiyas.com/inventor/shigeyoshi-nakatsuji

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

USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 2.0

ph-index = 1


Company Filing History:


Years Active: 2025

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1 patent (USPTO):Explore Patents

Title: Shigeyoshi Nakatsuji: Innovator in Vacuum Pump Technology

Introduction

Shigeyoshi Nakatsuji is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of vacuum technology, particularly through his innovative designs and patents. His work has been instrumental in advancing the efficiency and functionality of vacuum pumps.

Latest Patents

One of Nakatsuji's key patents is for a vacuum pump that features a unique design. The vacuum pump includes a casing with an inlet port, enclosing a rotating body and a thread groove stator that is substantially cylindrical. This design allows for the effective exhaustion of gas from the inlet port to the outside of the casing by rotating the rotating body. A notable aspect of this invention is the binding means, which is made from a material with a lower linear expansion coefficient than that of the thread groove stator. This feature helps to reduce radial deformation during thermal expansion, enhancing the pump's reliability and performance. Nakatsuji holds 1 patent for this innovative vacuum pump.

Career Highlights

Shigeyoshi Nakatsuji is currently employed at Edwards Japan Limited, where he continues to develop and refine vacuum technology. His expertise and innovative mindset have made him a valuable asset to the company. His work has not only contributed to the company's success but has also had a broader impact on the industry.

Collaborations

Nakatsuji has collaborated with fellow inventor Yoshiyuki Sakaguchi, working together to push the boundaries of vacuum technology. Their partnership has led to advancements that benefit both their company and the field as a whole.

Conclusion

Shigeyoshi Nakatsuji is a prominent figure in the realm of vacuum pump innovation. His contributions, particularly through his patented designs, have significantly advanced the technology and its applications. His ongoing work at Edwards Japan Limited continues to shape the future of vacuum technology.

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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