Patents by Inventor Seiji Katano

Seiji Katano 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).

  • Patent number: 4405709
    Abstract: A reusable gravure printing plate or cylinder blank which can be readily processed into a printing plate or cylinder carrying an image to be printed. The blank comprises a non-etchable, wear-resistant layer, as of chromium, overlying at least the surface of a base, and a multiplicity of minute dot-like etchable portions, as of copper, which are of equal size and uniform placement, and which are formed at least in and isolated from each other by the non-etchable layer. The etchable portions are formed flush with the non-etchable layer. For preparation of a gravure printing plate or cylinder from this blank an etching operation is performed on the blank through a prepared etching resist, as with the use of a ferric chloride solution. The etchant forms ink-retaining cells in the etchable portions of the blank.
    Type: Grant
    Filed: March 31, 1981
    Date of Patent: September 20, 1983
    Assignee: Dai Nippon Insatsu Kabushiki Kaisha
    Inventors: Seiji Katano, Masataka Atsumi