This inventor holds 2 USPTO granted patents. Top assignee: Teijin Chemicals Limited. Active years: 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: 1993
Title: Koji Hashimoto: Innovator in Polycarbonate Resin Technology
Introduction
Koji Hashimoto is a prominent inventor based in Matsuyama, Japan. He has made significant contributions to the field of polymer science, particularly in the development of polycarbonate resin compositions. With a total of 2 patents to his name, Hashimoto's work has advanced the capabilities of materials used in various applications.
Latest Patents
Hashimoto's latest patents include a polycarbonate resin composition that boasts improved melt properties without compromising the mechanical properties and transparency inherent in polycarbonate resins. This innovative composition is particularly suited for blow molding and comprises a polycarbonate resin with a weight-average molecular weight of 13,000 to 35,000, along with an ultrahigh-molecular-weight polycarbonate resin with a weight-average molecular weight of 175,000 to 300,000. The result is enhanced flowability and a favorable structural viscosity index.
Another notable patent is a process for the continuous production of polycarbonate oligomers. This process involves feeding an aqueous alkali solution of a dihydric phenol and phosgene into a tower-type reactor from the bottom, allowing for a reaction without the use of organic solvents. The reaction mixture is then discharged from the top of the reactor, enabling the production of oligomers that yield polycarbonate of stable quality using a simple apparatus.
Career Highlights
Koji Hashimoto is associated with Teijin Chemicals Limited, a company known for its innovative chemical solutions. His work at Teijin has allowed him to focus on advancing polycarbonate technologies, contributing to the company's reputation as a leader in the field.
Collaborations
Throughout his career, Hashimoto has collaborated with notable colleagues, including Noboru Yamanishi and Hideyuki Ichihana. These collaborations have fostered an environment of innovation and have led to the successful development of new materials and processes.
Conclusion
Koji Hashimoto's contributions to polycarbonate resin technology exemplify the impact of dedicated inventors in the field of materials science. His innovative patents and collaborations continue to influence the industry, paving the way for future advancements.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile