Patents by Inventor Mayumi MIZUTAMI

Mayumi MIZUTAMI 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).

  • EL display device
    Patent number: 8735900
    Abstract: A plurality of pixels are arranged on the substrate. Each of the pixels is provided with an EL element which utilizes as a cathode a pixel electrode connected to a current control TFT. On a counter substrate, a light shielding film, a first color filter having a first color and a second color filter having a second color are provided. The second color is different from the first color.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: May 27, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Mayumi Mizutami, Toshimitsu Konuma
  • EL Display Device and Method for Manufacturing the Same
    Publication number: 20130313558
    Abstract: A plurality of pixels are arranged on the substrate. Each of the pixels is provided with an EL element which utilizes as a cathode a pixel electrode connected to a current control TFT. On a counter substrate, a light shielding film, a first color filter having a first color and a second color filter having a second color are provided. The second color is different from the first color.
    Type: Application
    Filed: May 22, 2013
    Publication date: November 28, 2013
    Applicant: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei YAMAZAKI, Mayumi MIZUTAMI, Toshimitsu KONUMA