Kurashiki, Japan

Yoshiyuki Tsunematsu

This inventor holds 1 USPTO granted patent and 1 EPO patent. Top assignee: Asahi Kasei Kabushiki Kaisha. Active years: 2009.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiyuki Tsunematsu. Retrieved from https://idiyas.com/inventor/yoshiyuki-tsunematsu

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 = 5.0

ph-index = 1


Company Filing History:


Years Active: 2009

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

Title: The Innovations of Yoshiyuki Tsunematsu

Introduction

Yoshiyuki Tsunematsu is a notable inventor based in Kurashiki, Japan. He has made significant contributions to the field of polymer chemistry, particularly through his innovative work on oxytetramethylene glycol copolymers. His expertise and dedication to research have led to the development of valuable patents that enhance industrial applications.

Latest Patents

Tsunematsu holds a patent for an oxytetramethylene glycol copolymer and the method for producing it. This copolymer is synthesized by copolymerizing tetrahydrofuran and neopentyl glycol. The patent details specific characteristics such as the number average molecular weight (Mn), molecular weight distribution (Mw/Mn), and copolymerization ratios. Additionally, the patent outlines a purification method that involves adding fresh tetrahydrofuran to a reaction mixture containing the copolymer and unreacted diol, ensuring efficient distillation of the unreacted diol.

Career Highlights

Yoshiyuki Tsunematsu is associated with Asahi Kasei Corporation, where he has contributed to various research initiatives. His work has not only advanced the understanding of copolymer chemistry but has also led to practical applications in different industries. His innovative approach and technical skills have made him a valuable asset to his organization.

Collaborations

Throughout his career, Tsunematsu has collaborated with esteemed colleagues such as Tamotsu Kodama and Haruyuki Minoura. These collaborations have fostered a productive research environment, leading to further advancements in polymer technology.

Conclusion

Yoshiyuki Tsunematsu's contributions to the field of polymer chemistry, particularly through his patent on oxytetramethylene glycol copolymers, highlight his innovative spirit and dedication to research. His work continues to influence the industry and inspire future innovations.

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…