Patents by Inventor Kiyofumi Shimokawa

Kiyofumi Shimokawa 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).

  • Patent number: 4847181
    Abstract: A laser marking method comprising steps of preparing a label material consisting of a colour layer and a transparant layer, applying the label material on a marking surface of a work, illuminating the marking surface through the label material with a laser beam of a wave length transilluminating the transparent layer so as to form a mark of a certain information on the marking surface of the work and in the coloured layer of the label material, and removing the label material from the marking surface of the work to produce a recorded label. The label can be produced simultaniously with the mark on the work wherein the information shown on the label is sophisticatedly identical with the information of the mark on the work surface.
    Type: Grant
    Filed: August 7, 1987
    Date of Patent: July 11, 1989
    Assignee: Mazda Motor Corporation
    Inventor: Kiyofumi Shimokawa