Patents by Inventor Koki WAKUNAMI

Koki WAKUNAMI 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).

  • AR OPTICAL ELEMENT, METHOD FOR MANUFACTURING THE SAME, AND AR DISPLAY DEVICE
    Publication number: 20230333300
    Abstract: An AR optical element having high image quality, high efficiency of light utilization, and small-size is provided. The AR optical element has periodic structures of refractive index multiplexed with a predetermined interval and predetermined multiplicity, wherein each of the periodic structures of refractive index has an optical normal in a different direction from a physical normal orthogonal to a plane of a micro-region that reflects incident light.
    Type: Application
    Filed: September 16, 2021
    Publication date: October 19, 2023
    Applicant: National Institute of Information and Communications Technology
    Inventors: Koki WAKUNAMI, Yasuyuki ICHIHASHI, Shunsuke YOSHIDA