Patents by Inventor Hiroshi Matumoto

Hiroshi Matumoto 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 developing a lithographic printing plate
    Patent number: 4186006
    Abstract: A method for developing a light-sensitive lithographic printing plate having an image-forming layer containing a substantially water-insoluble diazo resin thereon using a developer composition which comprises (a) benzyl alcohol, .alpha.-methylbenzyl alcohol, ethylene glycol monophenyl ether and/or ethylene glycol monobenzyl ether, (b) an anionic surface active agent and (c) a water-soluble sulfite.
    Type: Grant
    Filed: October 3, 1977
    Date of Patent: January 29, 1980
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kesanao Kobayashi, Hiroshi Matumoto, Yasuhisa Naritomi