Oi, Japan

Masayoshi Kubo

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

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masayoshi Kubo. Retrieved from https://idiyas.com/inventor/masayoshi-kubo-e0r82lgh

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 = 2.4

ph-index = 2

Forward Citations = 24(Granted Patents)


Location History:

  • Oi, JP (1981)
  • Ohimachi, JP (1982)

Company Filing History:


Years Active: 1981-1982

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2 patents (USPTO):Explore Patents

Title: Masayoshi Kubo: Innovator in Lactone Polymer Production

Introduction

Masayoshi Kubo is a notable inventor based in Oi, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the production of lactone high polymers and polyesters. With a total of 2 patents to his name, Kubo's work has advanced the understanding and application of lactone-based materials.

Latest Patents

Kubo's latest patents include a process for producing lactone high polymers and a process for producing lactone polyesters. The first patent describes a method for producing resinous lactone high polymers through the catalytic polymerization of lactones with a water content of less than 0.1%. This process utilizes a catalyst selected from a group that includes stannous chloride, stannous bromide, titanium trichloride, and others. The second patent focuses on the ring-opening polymerization of a lactone in the presence of a metal-containing organic compound as a catalyst, specifically highlighting the use of vanadium or molybdenum compounds.

Career Highlights

Masayoshi Kubo is currently associated with Daicel Chemical Industries, Ltd., where he continues to innovate in the field of polymer production. His expertise in lactone chemistry has positioned him as a key figure in the development of new materials that have various industrial applications.

Collaborations

Kubo has collaborated with notable coworkers such as Michio Nakanishi and Mamoru Kimura. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas in polymer research.

Conclusion

Masayoshi Kubo's contributions to the field of lactone polymer production are significant and impactful. His patents reflect a deep understanding of polymer chemistry and a commitment to advancing the industry. Kubo's work continues to inspire future innovations in material science.

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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