Chiba, Japan

Toshinori Tazaki

This inventor holds 24 USPTO granted patents and 5 EPO patents, primarily in Refrigeration Lubricants. Top assignee: Idemitsu Kosan Company, Limited. Active years: 1993-2014.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshinori Tazaki. Retrieved from https://idiyas.com/inventor/toshinori-tazaki

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

Calculating rank

% Patents Active = 87.5

 

Average Co-Inventor Count = 1.6

ph-index = 12

Forward Citations = 408(Granted Patents)


Location History:

  • Kamiizumi Sodegaura, JP (1997)
  • Sodegaura, JP (1993 - 1998)
  • Chiba, JP (2003 - 2008)
  • Ichihara, JP (1993 - 2014)

Company Filing History:


Years Active: 1993-2014

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Areas of Expertise:
Lubricating Oil
Refrigerant Composition
Hydraulic Fluid
Cyclic Organophosphorus
Natural Refrigerants
Polyether Additive
Propylene Block Copolymer
Olefin Polymer
Styrenic Copolymer
Graft Copolymer
Thermal Management
Carbon Dioxide Refrigerant
24 patents (USPTO):Explore Patents

Title: Innovations in Refrigeration: The Patents of Toshinori Tazaki

Introduction

Toshinori Tazaki, based in Chiba, Japan, has made significant contributions to the field of refrigeration technology. With a remarkable portfolio of 24 patents, Tazaki is known for developing innovative solutions that enhance the efficiency and performance of refrigeration systems. His work, particularly in lubricating oils and fluid compositions, showcases a commitment to advancing the industry.

Latest Patents

Tazaki's recent patents include several groundbreaking inventions. One notable patent is for a lubricating oil specifically designed for refrigerators, which incorporates a base oil derived from polyester or polyvinyl ether, combined with polycarbonate-based compounds. This innovative lubricating oil exhibits exceptional miscibility with refrigerants that have one carbon atom and no chlorine, especially difluoromethane. Additionally, Tazaki has developed a hydraulic fluid composition that demonstrates outstanding antiwear and lubricity properties.

Another key patent concerns a refrigerating machine oil composition tailored for use with carbon dioxide refrigerants. This invention focuses on enhancing the performance of compression refrigeration systems found in car air conditioners, refrigerators, and heat pumps. The composition is characterized by a kinematic viscosity suitable for high efficiency and stability in operation.

Career Highlights

Toshinori Tazaki is associated with Idemitsu Kosan Company, Limited, where he has played an instrumental role in research and development. His passion for innovation has led to numerous patents that not only reflect his expertise but also his dedication to improving refrigeration technologies for various applications. Throughout his career, he has remained focused on developing sustainable and effective solutions that meet the industry's evolving needs.

Collaborations

In his journey of innovation, Tazaki has collaborated with esteemed colleagues, including Shuji Machida and Noriyuki Tani. These partnerships have allowed for the exchange of knowledge and expertise, further enhancing the quality of their collective work in the field of refrigeration technology.

Conclusion

Toshinori Tazaki's contributions to refrigeration innovations through his patents are a testament to his role as a leading inventor in the field. With a focus on developing lubricating oils and hydraulic fluids, his work continues to drive advancements that improve efficiency and sustainability in refrigeration systems. As the industry evolves, Tazaki’s patents are likely to play a crucial role in shaping the future of refrigeration technology.

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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