Patents by Inventor Tomo'o Kamigaki

Tomo'o Kamigaki 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).

  • Electrochromic display device having white counter electrode
    Patent number: 4746200
    Abstract: An electrochromic display device in which an electrolyte is disposed between a display electrode and a counter electrode, and an electrochromic substance layer is formed at least to the inside of said display electrode, wherein the counter electrode comprises a layer containing a white redox substance. Since the white redox substance layer is formed to the counter electrode, white background plate is no more necessary which enables to reduce the fabrication cost and give a great feasibility for the design of ECD.
    Type: Grant
    Filed: May 16, 1986
    Date of Patent: May 24, 1988
    Assignee: Alps Electric Co., Ltd.
    Inventor: Tomo'o Kamigaki