Fukuoka, Japan

Kiyonori Tokumitsu

This inventor holds 7 USPTO granted patents. Top assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Denki K.k.. Active years: 1983-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyonori Tokumitsu. Retrieved from https://idiyas.com/inventor/kiyonori-tokumitsu

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 = 2.5

ph-index = 4

Forward Citations = 40(Granted Patents)


Company Filing History:


Years Active: 1983-1991

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7 patents (USPTO):Explore Patents

Title: Kiyonori Tokumitsu: Innovator in Fluid Machinery

Introduction

Kiyonori Tokumitsu is a notable inventor based in Fukuoka, Japan. He has made significant contributions to the field of fluid machinery, holding a total of seven patents. His innovative designs focus on enhancing the efficiency and functionality of various machines.

Latest Patents

Among his latest patents is a fluid scroll machine with peripherally attached counterweights. This invention features a movable scroll that is balanced through a simple construction, which reduces both the weight and cost of the machine. The design includes counterweights attached to the peripheral portion of the movable scroll, allowing for a reduction in the thickness of the engaged portion of the scroll that does not participate in gas compression. This balance improves the overall performance of the scroll during rotation. Another significant patent is a sealing device for an oil rotary vacuum pump. This device includes a rotor and a cylinder, with a unique arrangement of sealing members that form a gap portion to enhance the sealing efficiency. The design also incorporates an oil reservoir and passages that facilitate lubrication, ensuring optimal operation of the vacuum pump.

Career Highlights

Kiyonori Tokumitsu has worked with prominent companies such as Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Denki K.K. His experience in these organizations has contributed to his expertise in fluid machinery and innovation.

Collaborations

Throughout his career, Tokumitsu has collaborated with talented individuals, including Mitsuhiro Nishida and Sakuei Yamamoto. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.

Conclusion

Kiyonori Tokumitsu's contributions to fluid machinery through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, showcasing the importance of innovation in engineering.

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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