Sodegaura, Japan

Yozo Iwao

This inventor holds 1 USPTO granted patent. Top assignee: Idemitsu Kosan Company, Limited. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yozo Iwao. Retrieved from https://idiyas.com/inventor/yozo-iwao

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 1

Forward Citations = 37(Granted Patents)


Company Filing History:


Years Active: 1979

Loading Chart...
1 patent (USPTO):Explore Patents

Title: Yozo Iwao: Innovator in Lubricating Oil Technology

Introduction

Yozo Iwao is a notable inventor based in Sodegaura, Japan. He has made significant contributions to the field of lubricating oil technology. His innovative methods have led to advancements in the production of base stocks for lubricating oils.

Latest Patents

Iwao holds a patent for a method of preparing base stocks for lubricating oil. This patent describes a process for producing base stocks with excellent thermal stability. The method involves hydrofinishing a mixture that consists of 10 to 60 percent by volume of a neutralized extract and 90 to 40 percent by volume of an unextracted intermediate distillate product of low total acid value. The neutralized extract is prepared through alkaline treatment and vacuum distillation of an extract obtained by solvent extraction of the intermediate distillate product using a solvent that has an affinity for aromatic compounds. This innovative approach enhances the quality and performance of lubricating oils.

Career Highlights

Yozo Iwao is associated with Idemitsu Kosan Company, Limited, where he has contributed to various research and development projects. His work has focused on improving the efficiency and effectiveness of lubricating oils, which are essential in numerous industrial applications.

Collaborations

Iwao has collaborated with notable colleagues such as Susumu Yamamoto and Takatoshi Kunihiro. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

In summary, Yozo Iwao is a distinguished inventor whose work in lubricating oil technology has made a significant impact. His patented methods continue to influence the industry, showcasing the importance of innovation in enhancing product performance.

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]
Loading…