This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Gas Chemical Company, Inc.. Active years: 1991.
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
Title: Teruo Kawahigashi: Inventor of an Optical-Grade Polycarbonate Resin
Introduction
Teruo Kawahigashi is an inventor associated with Osaka, Japan, and Mitsubishi Gas Chemical Company, Inc. His patent work includes a polycarbonate resin designed to combine useful processing characteristics with improved optical properties.
Latest Patents
Kawahigashi is credited with 1 patent: “Polycarbonate Resin from Bis(Hydroxy Benzoyl Oxy-Tetra Oxa Spiro) Compound.” The invention describes a polycarbonate resin containing structural units derived from a spiro ring-containing dihydric phenol, either alone or together with units derived from another dihydric phenol. It also covers a process for producing the resin.
The patent describes the material as having excellent flowability and moldability, along with optical properties such as a low refractive index and a large Abbe number. These characteristics make it suitable for optical molded articles and other precision-molded products.
Career Highlights
Kawahigashi’s documented patent contribution focuses on developing polycarbonate materials for demanding manufacturing and optical applications. The invention connects resin composition and production methods with properties that can support precision molding.
Collaborations
Kawahigashi’s listed coworkers include Satoshi Kanayama and Toshiaki Asoh. His patent is associated with Mitsubishi Gas Chemical Company, Inc.
Conclusion
Teruo Kawahigashi’s patent highlights an approach to polycarbonate resin that combines moldability and flowability with optical performance for precision applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile