Tokyo, Japan

Akimasa Yokoyama

This inventor holds 6 USPTO granted patents and 2 published patent applications and 2 EPO patents. Top assignees: Mitsubishi Heavy Industries Thermal Systems, Ltd., Mitsubishi Heavy Industries Limited. Active years: 2016-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Akimasa Yokoyama. Retrieved from https://idiyas.com/inventor/akimasa-yokoyama

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

USPTO Granted Patents = 6 

% Patents Active = 66.7

 

Average Co-Inventor Count = 4.1

ph-index = 1

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 2016-2026

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6 patents (USPTO):Explore Patents

Title: Akimasa Yokoyama: Innovator in Refrigeration Technology

Introduction

Akimasa Yokoyama is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of refrigeration technology, holding a total of four patents. His work focuses on improving the efficiency and reliability of refrigeration systems.

Latest Patents

Yokoyama's latest patents include a control device for detecting abnormal operation states of compressors in parallel refrigerators. This innovative control device is designed to detect surging and droplet suction by analyzing the current flowing through electric motors that drive multiple compressors. Another notable patent is for a turbo compressor and turbo chiller, which features an open impeller designed to enhance efficiency and expand the safe operating region. This turbo compressor utilizes advanced magnetic bearings and a control unit that calculates axial thrust loads to maintain optimal performance.

Career Highlights

Throughout his career, Akimasa Yokoyama has worked with leading companies in the industry, including Mitsubishi Heavy Industries Thermal Systems, Ltd. and Mitsubishi Heavy Industries Limited. His experience in these organizations has allowed him to develop cutting-edge technologies that address the challenges faced in refrigeration systems.

Collaborations

Yokoyama has collaborated with notable colleagues such as Yasushi Hasegawa and Kenji Ueda. Their combined expertise has contributed to the advancement of innovative solutions in the field of refrigeration.

Conclusion

Akimasa Yokoyama's contributions to refrigeration technology through his patents and collaborations highlight his role as a key innovator in the industry. His work continues to influence the development of more efficient and reliable refrigeration systems.

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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