Patents by Inventor Bonpei Kato

Bonpei Kato 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 gravure printing plates
    Patent number: 4384011
    Abstract: A process for producing novel resinous gravure printing plates comprises coating on a printing substrate such as a cylinder a radiation-curable resin coating composition containing in a specific ratio a soluble polyamide resin and a radiation-polymerizable monomer or the like dissolved in a solvent, curing the coated film by irradiation with actinic rays, and engraving the resulting cured film. As a result, a novel resinous gravure printing plate having excellent engraving property, printing durability, and solvent resistance is produced.
    Type: Grant
    Filed: September 14, 1981
    Date of Patent: May 17, 1983
    Assignees: Dai Nippon Insatsu Kabushiki Kaisha, Tokyo Ohka Kogyo Kabushiki Kaisha
    Inventors: Toshimi Aoyama, Bonpei Kato, Hiroyuki Tohda, Eiichi Tachibana, Shinichi Hikosaka