This inventor holds 2 USPTO granted patents. Top assignee: Mitsui Toatsu Chemicals, Incorporated. Active years: 1993-1995.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1993-1995
Title: Innovations of Hiroyuki Katayama
Introduction
Hiroyuki Katayama is a notable inventor based in Nagoya, Japan. He has made significant contributions to the field of colorants and polarizing films, holding two patents that showcase his innovative spirit.
Latest Patents
His latest patents include an anthraquinonic colorant and a polarizing film containing this colorant. The anthraquinonic colorant is represented by a specific formula, wherein Q¹ and Q² are independently substituted or unsubstituted anthraquinonyl groups, Z¹ and Z² are bridge groups, A is an aromatic divalent group, and n is either 0 or 1. The polarizing film incorporates at least one colorant from this invention within a hydrophobic resin, providing excellent durability and moisture resistance.
Career Highlights
Hiroyuki Katayama is associated with Mitsui Toatsu Chemicals, Incorporated, where he has been able to apply his expertise in developing advanced materials. His work has contributed to the enhancement of product performance in various applications.
Collaborations
He has collaborated with notable coworkers such as Tsutami Misawa and Hisato Itoh, further enriching his research and development efforts.
Conclusion
Hiroyuki Katayama's innovative work in anthraquinonic colorants and polarizing films highlights his significant impact on material science. His contributions continue to influence advancements in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile