Ohi, Japan

Takehisa Sato

This inventor holds 5 USPTO granted patents. Top assignees: Tonen Corporation, Exxon Chemical Patents, Inc.. Active years: 1994-1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takehisa Sato. Retrieved from https://idiyas.com/inventor/takehisa-sato-iv64mofi

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 = 3.8

ph-index = 4

Forward Citations = 33(Granted Patents)


Location History:

  • Ohi, JP (1994 - 1996)
  • Saitama, JP (1994 - 1998)
  • Ohi-Machi, JP (1998)

Company Filing History:


Years Active: 1994-1998

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5 patents (USPTO):Explore Patents

Title: Takehisa Sato: Innovator in Refrigeration Technology

Introduction

Takehisa Sato is a prominent inventor based in Ohi, Japan, known for his significant contributions to refrigeration technology. With a total of five patents to his name, Sato has made notable advancements in the field, particularly in the development of lubricants for refrigerating machines.

Latest Patents

One of Sato's latest patents is focused on a refrigerating machine oil that serves as both a lubricant and a combination lubricant and refrigerant composition. This innovative lubricant is designed for use in refrigerating machines utilizing substitute freon refrigerants. The formulation includes a polymer of a fumaric ester or a fumaric ester combined with a copolymerizable alkylene. Additionally, it may contain an organic carboxylic ester or a polyalkylene glycol with a kinematic viscosity ranging from 2 to 30 cSt. This lubricant is compatible with substitute freon refrigerants, such as hydrogen-containing halogenated hydrocarbons, particularly R 134a. It exhibits a high viscosity index, thermal and chemical stability, and excellent lubricity across a wide temperature range.

Career Highlights

Throughout his career, Takehisa Sato has worked with notable companies, including Tonen Corporation and Exxon Chemical Patents, Inc. His work has significantly impacted the refrigeration industry, leading to more efficient and environmentally friendly solutions.

Collaborations

Sato has collaborated with esteemed colleagues, including Toshiaki Kuribayashi and Hironari Ueda, contributing to the advancement of refrigeration technologies.

Conclusion

Takehisa Sato's innovative work in refrigeration technology, particularly in developing advanced lubricants, has made a lasting impact on the industry. His contributions continue to influence the efficiency and effectiveness of refrigerating machines today.

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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