Patents by Inventor Kazuhiro Hayasaka

Kazuhiro Hayasaka 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).

  • Apparatus for and method of laser making
    Patent number: 5801868
    Abstract: An apparatus for and a method of laser marking make it possible to perform laser marking on workpieces being continuously conveyed, without having to stop them at intervals, thereby achieving an improvement in production efficiency. For this purpose, the marking apparatus has a second deflector (9) which includes a mirror (10), for reflecting a laser beam transmitted through a mask (6), and movable lenses (16, 17) for receiving the reflected laser beam from the reflective mirror (10) and applying it to the surface of a workpiece (8) for marking, with the movable lenses (16, 17) being mounted on a moving mechanism (15) which moves in synchronism with the speed at which the workpiece is conveyed.
    Type: Grant
    Filed: May 20, 1996
    Date of Patent: September 1, 1998
    Assignee: Komatsu Ltd.
    Inventors: Kazuhiro Hayasaka, Masashi Ichihara