Patents by Inventor Moritsugu SAKAMOTO

Moritsugu SAKAMOTO 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).

  • Publication number: 20210072447
    Abstract: A polarization diffraction element comprising a film including a liquid crystalline material having photosensitivity, the film having at least one hologram recorded therein, and thereby having a property as a fork-shaped polarization grating having an anisotropic structure in which an optical axis continuously rotates toward a direction of a grating vector.
    Type: Application
    Filed: September 8, 2020
    Publication date: March 11, 2021
    Inventors: Takeya SAKAI, Moritsugu SAKAMOTO, Hiroshi ONO, Nobuhiro KAWATSUKI