Patents by Inventor Mika Yazawa

Mika Yazawa 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).

  • Electroluminescent device having a light reflecting film only at locations corresponding to light emitting regions
    Patent number: 5804918
    Abstract: An electroluminescent device comprises an insulating substrate having thereon a pair of electrodes comprising a transparent first electrode and a transparent second electrode, with a stack of transparent first insulating layer, a luminescent layer, and a second transparent layer interposed therebetween; provided that a light reflecting plane is formed on the outside of one of the electrode pairs with a transparent insulating substance interposed between, the electrode being disposed opposed to the light outcoupling direction.
    Type: Grant
    Filed: December 7, 1995
    Date of Patent: September 8, 1998
    Assignee: Nippondenso Co., Ltd.
    Inventors: Mika Yazawa, Tomohiro Yonekawa, Yutaka Hattori, Nobuei Ito, Tadashi Hattori