Kariya, Japan

Tetsuhiko Fukanuma

This inventor holds 88 USPTO granted patents, plus 1 CIPO patent and 2 EPO patents, primarily in Compressor Technology (CPC class 418 552). Top assignees: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho, Kabushiki Kaisha Toyota Jidoshokki, Nippondenso Co., Ltd.. Active years: 1990-2026.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tetsuhiko Fukanuma. Retrieved from https://idiyas.com/inventor/tetsuhiko-fukanuma

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


% Patents Active = 80.7


 

Average Co-Inventor Count = 4.4

ph-index = 14

Forward Citations = 783(Granted Patents)

Forward Citations (Not Self Cited) = 744(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Aichi, JP (2005)
  • Kariya, JP (1990 - 2020)

Company Filing History:


Years Active: 1990-2026

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Areas of Expertise:
Variable Displacement Compressor
Swash Plate Compressor
Oil Separator
Heat-Insulating Mechanism
Piston-Type Compressor
Control Valve
Refrigerant Compressor
Compressor Control Method
Vehicle Air Conditioner
Lubricating Oil Composition
Displacement Control Device
Valve Plate Manufacturing
88 patents (USPTO):Explore Patents

Title: Tetsuhiko Fukanuma: A Pioneer in Refrigeration Technology

Introduction: Tetsuhiko Fukanuma, based in Kariya, Japan, is a remarkable inventor known for his significant contributions to refrigeration technology. With a prolific history that includes 87 patents, Fukanuma has revolutionized the lubrication and operational processes of refrigerators, particularly those utilizing environmentally friendly refrigerants.

Latest Patents: Among his latest innovations are several key patents that showcase his expertise. One notable patent is the "Lubricating Oil Composition for Refrigerator," which is specifically designed for use with refrigerants containing carbon dioxide. This composition combines a base oil that primarily includes polyoxyalkylene glycol and an alcohol with hydroxy groups, ensuring efficient lubrication under various operational conditions.

Another important invention is the "Compressor Having Oil Separator," which features a partition member that effectively separates discharge chambers and passages. The design includes a circular ring portion, optimizing the flow of refrigerants while maintaining effective oil separation. This innovation is crucial for enhancing the performance and reliability of refrigeration systems.

Career Highlights: Throughout his career, Tetsuhiko Fukanuma has worked at notable companies, including Toyota Industries Corporation and DENSO Corporation, where his expertise in engineering and innovation has been nurtured and further developed. His work has not only led to numerous patents but has also influenced the direction of refrigeration technology in the industry.

Collaborations: Fukanuma's journey in the realm of inventions has seen him collaborate with esteemed colleagues, including Masahiro Kawaguchi and Tetsuo Yoshida. These partnerships have facilitated the exchange of innovative ideas and have contributed to his impressive portfolio of patents.

Conclusion: Tetsuhiko Fukanuma stands out as a key figure in the field of refrigeration technology. His 87 patents reflect his dedication to improving efficiency and sustainability in refrigeration systems. As his innovations continue to pave the way for future advancements, Fukanuma's legacy in the industry is undoubtedly secured.

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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