Patents by Inventor Keiko Miyai

Keiko Miyai 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
    Patent number: 4365870
    Abstract: An electrochromic display device wherein a layer of electrochromic material is formed on a display electrode. A counter electrode is spaced apart from the display electrode, and the space therebetween is filled with an electrolyte. A cermet layer is formed on the counter electrode. The cermet layer consists of WO.sub.3 and Ta.
    Type: Grant
    Filed: October 27, 1980
    Date of Patent: December 28, 1982
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Hiroshi Morita, Keiko Miyai