This inventor holds 1 USPTO granted patent. Top assignee: Unitika Ltd.. Active years: 1980.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1980
Title: Tadashi Hayashi and Polyester Film Processing
Introduction
Tadashi Hayashi is an inventor associated with Uji, Japan, and Unitika Ltd. His work includes a patented process for preparing biaxially drawn thermoplastic polyester film.
Latest Patents
The available information lists one patent for Hayashi: Process for Preparing Biaxially Drawn Thermoplastic Polyester Film. The process uses a tenter method to draw the film in two directions at a temperature above the polyester’s glass transition temperature. It maintains the film’s preheating temperature above the drawing temperature, sets the immediate post-drawing heat-treatment temperature below the preheating temperature, and reheats the film in multiple steps across substantially equal temperature ranges.
Career Highlights
Hayashi’s listed patent focuses on controlling the heating and drawing stages involved in producing biaxially drawn thermoplastic polyester film. The described method coordinates preheating, drawing, heat treatment, and staged reheating.
Collaborations
Hayashi’s listed coworkers include Kazuo Matsukura and Tsugio Nagasawa.
Conclusion
Tadashi Hayashi’s recorded contribution is a patented film-preparation process that specifies a coordinated sequence of drawing and temperature treatments.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile