Patents by Inventor Shoichi Shimoyama

Shoichi Shimoyama 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).

  • Process for Producing Modified Rosin Ester Resin Composition for Use in Lithographic Ink Varnish and Process for Producing Lithographic Ink Varnish
    Publication number: 20070221091
    Abstract: This process for producing a modified rosin ester resin composition for use in a lithographic ink reacts rosin (A), an acid modified rosin (B) which is obtained by denaturating rosin (A) with an ?,?-unsaturated dicarboxylic acid and/or anhydride thereof (d), an oil modified rosin (C) which is obtained by denaturating rosin (A) with a vegetable oil (c) having an iodine value of 140 or more, with a polyol (D) of trihydric or more.
    Type: Application
    Filed: April 21, 2005
    Publication date: September 27, 2007
    Inventors: Shoichi Shimoyama, Masatoshi Motomura
  • Process for producing oil-modified and rosin-modified phenolic resin for printing inks
    Patent number: 4391640
    Abstract: A process for producing an animal or vegetable oil-modified and rosin-modified phenolic resin for printing inks, which comprises:[I] reacting (a) a resol-type phenol/formaldehyde initial condensation product, (b) an animal or vegetable oil having an iodine value of 100 to 210 or containing a hydroxyl group, (c) a rosin and (d) an alchohol, and if required, (e) an acid or (f) a hydrocarbon resin; or[II] reacting the condensation product (a) and the animal or vegetable oil (b) with a rosin ester obtained by the reaction of the rosin (c) and the alcohol (d) and if required, the acid (e) or the hydrocarbon resin (f) in advance.
    Type: Grant
    Filed: June 3, 1981
    Date of Patent: July 5, 1983
    Assignee: Dainippon Ink & Chemicals, Inc.
    Inventors: Noboru Okoshi, Kin-ichi Kudo, Shoichi Shimoyama