Patents by Inventor Yasuto Kuwahara

Yasuto Kuwahara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pressure-Sensitive Adhesive and Method for Producing Same, and Pressure-Sensitive Adhesive Sheet
    Publication number: 20080248299
    Abstract: A pressure-sensitive adhesive, comprising a polymer (A), which is formed by polymerization of a radical polymerizable monomer, contains carboxyl groups, and has a glass transition temperature within a range from ?80 to 0° C. and a weight average molecular weight within a range from 500,000 to 1,500,000, a tricyclic diterpene carboxylic acid (B), and a curing agent (C) capable of reacting with a carboxyl group, wherein the total acid value of the combination of the polymer (A) and the tricyclic diterpene carboxylic acid (B) is within a range from 5 to 50 (mgKOH/g).
    Type: Application
    Filed: September 2, 2005
    Publication date: October 9, 2008
    Inventors: Yasuto Kuwahara, Shoichi Fukumoto, Naotoshi Nakamura