Patents by Inventor Katumitu Tamura

Katumitu Tamura 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).

  • Printing sheets
    Patent number: 5047286
    Abstract: Disclosed is a printing sheet comprising(a) a support, and(b) a surface layer provided on at least one side surface of the support, the surface layer containing at least one compound selected from the group consisting of n-butyl (meth)acrylate based polymers, phenyl (meth)acrylate based homopolymer and copolymers, benzyl (meth)acrylate based homopolymers and copolymers, styrene based homopolymers and copolymers, cinnamic acid, and cinnamic acid derivatives. The printing sheets have improved printability.
    Type: Grant
    Filed: July 25, 1989
    Date of Patent: September 10, 1991
    Assignee: Tomoegawa Paper Co.
    Inventors: Yoshiaki Kaburaki, Junichi Morimoto, Katumitu Tamura, Koichi Tomita