This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Toagosei., Ltd.. Active years: 2026.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2026
Title: Keigo Iwatsuki: Inventor in Nagoya
Introduction
Keigo Iwatsuki is an inventor based in Nagoya, Japan, and is associated with Toagosei Co., Ltd. His recorded patent work concerns multilayer sheet materials and their production.
Latest Patents
Iwatsuki is credited with 1 patent: “Multilayer Sheet and Production Method Thereof.” The invention describes a multilayer sheet with a substrate layer containing polyphenylene ether, polystyrene, and an amino group-containing polymer, alongside an adhesive layer containing an acid-modified polyolefin.
Career Highlights
The available information identifies Iwatsuki’s work in materials and multilayer sheet technology. His patent describes a substrate composition containing 40 to 99.9% by mass polyphenylene ether, 0 to 59.9% by mass polystyrene, and an amino group-containing polymer.
Collaborations
Iwatsuki’s listed coworkers include Makoto Imahori and Kentaro Miyamura. The patent’s subject matter reflects collaborative work in developing multilayer materials and production methods.
Conclusion
Keigo Iwatsuki’s recorded invention focuses on a multilayer sheet combining a polymer-based substrate with an acid-modified polyolefin adhesive layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile