Patents by Inventor Kaoru Haraguchi

Kaoru Haraguchi 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).

  • Signature identification system
    Patent number: 5150420
    Abstract: A signature identification system includes an IC card having a memory storing sign data representing a genuine signature and a display device for displaying the genuine signature by readign the sign data stored in the IC card. A writing unit includes a sign reading device for reading a genuine signature signed by an authorized person and a writing device for writing data representing the read genuine signature on an IC card, whereby the genuine signature is invisibly stored in the IC card and imitation of the genuine signature by viewing the genuine signature in the card can be avoided.
    Type: Grant
    Filed: June 18, 1991
    Date of Patent: September 22, 1992
    Assignee: Omron Tateisi Electronics Co.
    Inventor: Kaoru Haraguchi