Patents by Inventor Katsunobu Kunimoto

Katsunobu Kunimoto 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).

  • Method for producing a metal lithographic plate
    Patent number: 4585529
    Abstract: A method for producing a metal substrate for a lithographic plate is provided herein by treating the substrate having the thickness in the range of 50 to 400 .mu.m. The said substrate is electrochemically, chemically or mechanically treated in order to provide an average surface roughness in the range of 0.1 to 3 .mu.m, followed by a surface treatment such as plating or chemical treatment, and then followed by a conventional hydrophilic treatment.
    Type: Grant
    Filed: November 1, 1983
    Date of Patent: April 29, 1986
    Assignee: Toyo Kohan Co., Ltd
    Inventors: Katsumi Kanda, Katsunobu Kunimoto, Keiji Yamane, Yoshikazu Kondo
  • Method for producing a steel lithographic plate
    Patent number: 4445998
    Abstract: A method for producing a metal substrate for a lithographic plate is provided herein by treating the substrate having the thickness in the range of 50 to 400 .mu.m. The said substrate is electrochemically, chemically or mechanically treated in order to provide an average surface roughness in the range of 0.1 to 3 .mu.m, followed by a surface treatment such as plating or chemical treatment, and then followed by a conventional hydrophilic treatment.
    Type: Grant
    Filed: December 2, 1981
    Date of Patent: May 1, 1984
    Assignee: Toyo Kohan Co., Ltd.
    Inventors: Katsumi Kanda, Katsunobu Kunimoto, Keiji Yamane, Yoshikazu Kondo