This inventor holds 1 USPTO granted patent. Top assignee: Toray Industries, Inc.. Active years: 2012.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2012
Title: Koji Sumi and His Polyphenylene Sulfide Invention.
Introduction
Koji Sumi is an inventor associated with Shiga, Japan, and Toray Industries, Inc. His work includes a patented polyphenylene sulfide (PPS) member designed to retain its color and material characteristics when exposed to light.
Latest Patents
Sumi is associated with 1 patent: “Polyphenylene Sulfide Member and Method for Producing the Same.” The invention describes a PPS member with improved light fastness, intended to resist color changes during outdoor use while retaining the characteristic properties of PPS. Its light-fastness rating is Class 1 or higher under ultraviolet carbon arc lamp exposure, measured according to JIS L-0842.
Career Highlights
Sumi’s patent reflects an effort to improve the durability of PPS products in light-exposed environments. The disclosed method and material focus on maintaining appearance and performance under ultraviolet light.
Collaborations
Sumi’s listed coworkers include Taizo Horiike and Hideyuki Yamamoto. His work is associated with Toray Industries, Inc.
Conclusion
Koji Sumi’s patented PPS member addresses light-induced color change, offering a material designed to preserve its appearance and characteristics during outdoor use.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile