Patents by Inventor Masayuki Kuzuwata

Masayuki Kuzuwata 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 desensitizing offset printing plates
    Patent number: 4282811
    Abstract: A method for desensitizing an offset printing plate which comprises applying an aqueous desensitizing composition consisting essentially of at least one complex to a non-image area of the offset printing plate having an oleophilic image formed thereon in an amount effective to desensitize said non-image area.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: August 11, 1981
    Assignee: Ricoh Co., Ltd.
    Inventors: Masayuki Kuzuwata, Hazime Machida, Hiroshi Tamura, Tadashi Saito
  • Aqueous treating liquid for use in offset printing
    Patent number: 4208212
    Abstract: The present invention is intended to provide a cyanless treating liquid for use in offset printing which has an intense desensitizability, is capable of rapidly forming a firm hydrophilic film, is free from deterioration of the efficiency thereof when subjected to light or heat, and poses no problem of public nuisance.
    Type: Grant
    Filed: February 16, 1978
    Date of Patent: June 17, 1980
    Assignee: Ricoh Company, Ltd.
    Inventors: Masayuki Kuzuwata, Hazime Machida, Hiroshi Tamura, Tadashi Saito