Patents by Inventor Tadahisa Chiyoda

Tadahisa Chiyoda 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).

  • Rosin modified phenolic resin, gel varnish using the same, printing ink, printing method, and method for producing rosin modified phenolic resin
    Publication number: 20040181026
    Abstract: The present invention provides a rosin modified phenolic resin having a weight average molecular weight of 3,000 to 400,000, which is obtained by reacting a monoester with a polyhydric alcohol and a phenol formaldehyde initial condensate, said monoester being prepared by partially esterifying a rosin and an animal and vegetable oil fatty acid with a monoalcohol, and a method for producing the same. Also the present invention provides a gel varnish comprising the resin, an animal and vegetable oil component, and a gelling agent, and a printing ink comprising the gel varnish. Printing is conducted using the printing ink.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 16, 2004
    Applicant: HARIMA CHEMICALS, INC.
    Inventors: Hiroshi Toyoda, Tadahisa Chiyoda