This inventor holds 3 USPTO granted patents. Top assignee: Teijin Chemicals Limited. Active years: 1991-1993.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1991-1993
Title: The Innovative Contributions of Noboru Yamanishi
Introduction
Noboru Yamanishi, an accomplished inventor based in Matsuyama, Japan, has made significant strides in the field of polycarbonate materials. With three patents to his name, he has developed innovative solutions that enhance the performance of polycarbonate resins.
Latest Patents
Among his most notable inventions is a polycarbonate resin composition that boasts improved melt properties without compromising the mechanical strength and transparency characteristic of polycarbonate resins. This composition includes a polycarbonate resin with a weight-average molecular weight of 13,000 to 35,000 and an ultrahigh-molecular-weight polycarbonate resin with a weight-average molecular weight of 175,000 to 300,000. The result is improved flowability and a better structural viscosity index, making it particularly suitable for blow molding applications.
In addition, he has developed a process for the continuous production of polycarbonate oligomer. This innovative method facilitates the production of polycarbonate oligomers by reacting an aqueous alkali solution of a dihydric phenol with phosgene within a tower-type reactor, eliminating the need for organic solvents. This approach enables the production of oligomers that yield polycarbonate of consistent quality while using a simplified apparatus.
Career Highlights
Noboru Yamanishi is currently affiliated with Teijin Chemicals Limited, where he applies his expertise in polymer chemistry and materials engineering to drive innovation and efficiency. His work is characterized by a commitment to enhancing material properties and production processes, making a significant impact in the field of polymer science.
Collaborations
Throughout his career, Yamanishi has collaborated with esteemed colleagues, including Koji Hashimoto and Kouji Hashimoto. These partnerships have likely contributed to the successful development and implementation of his innovative polymer technologies, furthering the potential applications of polycarbonate materials.
Conclusion
Noboru Yamanishi's inventive prowess and dedication to improving polycarbonate materials demonstrate the importance of innovation in advancing chemistry and material science. His contributions not only push the boundaries of what is possible with polycarbonate resins but also pave the way for future advancements in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile