Patents by Inventor Shoji Ikshizaka

Shoji Ikshizaka 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).

  • Laser beam harmonics generator and light exposing device
    Patent number: 5198837
    Abstract: A laser beam harmonics generator comprises a laser beam source for emitting a laser beam, a harmonics generator for generating harmonics of the laser beam in response to the irradiation of the laser beam, and a displacement unit for relatively displacing the harmonics generator and the laser beam substantially perpendicular to a light path of the laser beam.
    Type: Grant
    Filed: December 28, 1990
    Date of Patent: March 30, 1993
    Assignee: Nikon Corporation
    Inventors: Shoji Ikshizaka, Hideo Hara, Yutaka Ichihara