Patents by Inventor Kouichi Ise

Kouichi Ise 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).

  • Optical low pass filter utilizing a phase grating
    Patent number: 4795236
    Abstract: An optical low pass filter including a phase grating, wherein the grating is implanted inwardly from the surface of a substrate, the grating having a uniform repetitive period and having a refractive index different from that of the substrate.
    Type: Grant
    Filed: December 20, 1985
    Date of Patent: January 3, 1989
    Assignee: Sony Corporation
    Inventor: Kouichi Ise