Yamaguchi, Japan

Masayasu Isibasi

This inventor holds 2 USPTO granted patents. Top assignee: Mitsui Petrochemical Industries, Ltd.. Active years: 1981-1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masayasu Isibasi. Retrieved from https://idiyas.com/inventor/masayasu-isibasi

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 = 3.7

ph-index = 2

Forward Citations = 7(Granted Patents)


Location History:

  • Yamaguchi, JP (1981)
  • Waki, JP (1982)

Company Filing History:


Years Active: 1981-1982

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2 patents (USPTO):Explore Patents

Title: Masayasu Isibasi: Innovator in Resorcinol Production

Introduction

Masayasu Isibasi is a notable inventor based in Yamaguchi, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of resorcinol. With a total of 2 patents to his name, Isibasi's work has advanced the methods used in this important chemical process.

Latest Patents

Isibasi's latest patents include a process for producing resorcinol and a method for recovering resorcinol. The process for producing resorcinol involves cleaving m-diisopropylbenzene dihydroperoxide in the presence of a water-soluble acid catalyst. This is done in a mixed solvent consisting of an aromatic hydrocarbon and acetone. The method for recovering resorcinol focuses on thermally cracking high-boiling by-products formed during the acid-cleavage process. This is achieved under reduced pressure and at specific temperatures, enhancing the efficiency of resorcinol recovery.

Career Highlights

Masayasu Isibasi is associated with Mitsui Petrochemical Industries, Ltd., where he has applied his expertise in chemical processes. His innovative approaches have contributed to the company's advancements in petrochemical production.

Collaborations

Isibasi has worked alongside notable colleagues such as Hiroaki Nakagawa and Hirohiko Nambu. Their collaborative efforts have furthered research and development in the field of resorcinol production.

Conclusion

Masayasu Isibasi's contributions to the production and recovery of resorcinol highlight his role as an influential inventor in the chemical industry. His patents reflect a commitment to innovation and efficiency in chemical processes.

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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