Patents by Inventor Shigeki Itoh

Shigeki Itoh 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).

  • Set for producing a colored pattern
    Patent number: 4960749
    Abstract: The present invention provides a method of making a concavo-convex pattern such as a fingerprint on a given sheet without soiling the pattern with color, and a set for making the pattern.
    Type: Grant
    Filed: June 28, 1988
    Date of Patent: October 2, 1990
    Assignee: Matsumoto Yushi-Seiyaku Co., Ltd.
    Inventors: Satoshi Miura, Masato Nishimura, Shigeki Itoh, Takashi Asari