Shizuoka, Japan

Yasuo Nakashima

This inventor holds 4 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1985-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuo Nakashima. Retrieved from https://idiyas.com/inventor/yasuo-nakashima-lumw65nr

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 = 5.7

ph-index = 4

Forward Citations = 182(Granted Patents)


Company Filing History:


Years Active: 1985-1989

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4 patents (USPTO):Explore Patents

Title: Yasuo Nakashima: Innovator in Heat Exchanger Technology

Introduction

Yasuo Nakashima is a prominent inventor based in Shizuoka, Japan. He has made significant contributions to the field of heat exchanger technology, holding a total of 4 patents. His innovative designs focus on improving the efficiency and functionality of heating and cooling systems.

Latest Patents

One of Nakashima's latest patents is a defrosting system for a heat exchanger. This system includes a temperature detector positioned near the exchanger, a temperature memory for storing detected temperature data, and a central processing unit. The system is designed to initiate a defrosting operation when certain temperature conditions are met, ensuring optimal performance even during rapid frost accumulation.

Another notable invention is a multiroom air conditioner that features multiple indoor heat exchangers connected to a single outdoor unit. This system incorporates reversible expansion valves and temperature sensors to maintain a target degree of subcooling during both cooling and heating operations. The controller ensures that temperatures across the branch pipes remain approximately equal, enhancing overall system efficiency.

Career Highlights

Yasuo Nakashima is currently employed at Mitsubishi Electric Corporation, where he continues to develop innovative solutions in the HVAC industry. His work has significantly impacted the design and functionality of modern heating and cooling systems.

Collaborations

Throughout his career, Nakashima has collaborated with notable colleagues, including Hitoshi Iijima and Fumio Matsuoka. These partnerships have fostered a creative environment that encourages the development of cutting-edge technologies.

Conclusion

Yasuo Nakashima's contributions to heat exchanger technology exemplify his commitment to innovation and efficiency. His patents reflect a deep understanding of the challenges in HVAC systems and provide practical solutions that enhance performance.

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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