Patents by Inventor Takeshi Iizima

Takeshi Iizima 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).

  • Color image forming method and color image forming photo-sensitive material to be used therefor
    Patent number: 4551408
    Abstract: A color image forming method wherein a colored, water soluble polymer and a photo-sensitive polymerization initiator are layered upon a transparent base material, exposed to light through a negative original, washed with water to remove unpolymerized material, proofed, and then dyed to an optical density of at least 2.5.
    Type: Grant
    Filed: October 4, 1983
    Date of Patent: November 5, 1985
    Assignee: Sanyo-Kokusaku Pulp Co., Ltd.
    Inventors: Hisashi Mino, Takeshi Iizima