Patents by Inventor Katsutoshi INOMOTO

Katsutoshi INOMOTO 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).

  • VIRTUAL IMAGE DISPLAY DEVICE AND OPTICAL UNIT
    Publication number: 20240142707
    Abstract: A virtual image display device includes a display panel being a display element configured to emit image light, a light-guiding member including a first total reflection surface and a second total reflection surface, a first diffraction element being provided on a light incidence side in association with the light-guiding member, a second diffraction element being provided on a light emission side in association with the light-guiding member, and a stray light suppression filter being provided on an external side of an image extraction part provided with the second diffraction element and being configured to limit passage of diffracted light from the second diffraction element.
    Type: Application
    Filed: October 25, 2023
    Publication date: May 2, 2024
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Katsutoshi INOMOTO, Mitsutaka IDE, Masayuki TAKAGI, Takashi TAJIRI