Patents by Inventor Shuiti Takamiya

Shuiti Takamiya 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).

  • Presensitized O-quinone diazide plate having an anodized aluminum base with an amine compound containing hydrophilic layer
    Patent number: 4801527
    Abstract: A presensitized plate for use in making a planographic printing plate is described, comprising an aluminum plate having an anodized film layer, a hydrophilic layer provided on said anodized film layer and a lithographically suitable light-sensitive layer on said hydrophilic layer, said hydrophilic layer comprising a hydrophilic compound having at least one amino group and at least one group selected from the class consisting of a carboxyl group in the free acid form or salt form, a sulfo group in the free acid form or salt form, and a hydroxyl group has prolonged life on the printing press and at the same time is resistant to scumming on non-image areas.
    Type: Grant
    Filed: April 21, 1987
    Date of Patent: January 31, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shuiti Takamiya, Hirokazu Sakaki