Patents by Inventor Yohonosuke Takahashi

Yohonosuke Takahashi 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).

  • Desensitizing solution for lithographic printing plate
    Patent number: 4370404
    Abstract: A novel desensitizing solution is disclosed which is applied to the surface of a lithographic printing plate coated with a photosensitive layer of a photopolymerizable composition, the desensitizing solution contains a hydrophilic colloid, a free radical polymerization inhibitor and water.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: January 25, 1983
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiromichi Tachikawa, Yohonosuke Takahashi, Kazuo Ishii, Tomoaki Ikeda, Fumiaki Shinozaki
  • Desensitizing solution for lithographic printing plate
    Patent number: 4328304
    Abstract: A novel desensitizing solution is disclosed which is applied to the surface of a lithographic printing plate coated with a photosensitive layer of a photopolymerizable composition, the desensitizing solution contains a hydrophilic colloid, a free radical polymerization inhibitor and water.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: May 4, 1982
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiromichi Tachikawa, Yohonosuke Takahashi, Kazuo Ishii, Tomoaki Ikeda, Fumiaki Shinozaki
  • Photopolymerizable composition with epoxy stabilizers
    Patent number: 4171977
    Abstract: A photopolymerizable composition having improved thermal stability comprising (a) a polymerizable ethylenically unsaturated monomer, (b) an initiator represented by the general formula (I): ##STR1## wherein Z represents the non-metallic atoms necessary to complete a nitrogen-containing heterocyclic nucleus; R.sup.1 represents an unsubstituted or substituted alkyl group; and R.sup.2 represents an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group, or a thienyl group; and (c) a chlorinated polyolefin as a binder and additionally containing (d) about 1 to about 30% by weight of an epoxy compound.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: October 23, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Eiichi Hasegawa, Kenichiro Yazawa, Shigeo Tanaka, Masataka Murata, Yohonosuke Takahashi