Patents by Inventor Kazuaki Kameshima

Kazuaki Kameshima 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 DEVICE, DISPLAY UNIT, AND ELECTRONIC APPARATUS
    Publication number: 20170357112
    Abstract: A display unit of the present invention includes a display section (10) that outputs a first linearly-polarized light as image light, and a display switching section (20) that performs switching between an image display mode and an external light reflection mode. The display section (10) includes a first absorption-type polarization member (11) that allows the first linearly-polarized light to pass through and absorbs second linearly-polarized light. The display switching section (20) includes a reflection-type polarization member (21), a switchable transmission polarization axis member (22), and a second absorption-type polarization member (23). The reflection-type polarization member (21) allows the first linearly-polarized light to pass through and reflects the second linearly-polarized light.
    Type: Application
    Filed: December 15, 2015
    Publication date: December 14, 2017
    Applicant: Sony Corporation
    Inventors: Seiji Shibahara, Seiji Hayashimoto, Kotaro Shima, Kazuaki Kameshima
  • Display
    Patent number: D941815
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: January 25, 2022
    Assignee: SONY CORPORATION
    Inventors: Kazuaki Kameshima, Seiji Hayashimoto, Yuji Nakahata, Kotaro Shima