Patents by Inventor Kikuo MIYATA

Kikuo MIYATA 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).

  • Light-emitting device comprising partition including overhang portion
    Patent number: 9728693
    Abstract: Occurrence of a crosstalk phenomenon in a light-emitting device including a tandem element is suppressed. A light-emitting device includes: lower electrodes over an insulating layer; a partition over a portion between the lower electrodes, which includes an overhang portion over an end portion of each of the lower electrodes; a first light-emitting unit over each of the lower electrodes and the partition; an intermediate layer over the first light-emitting unit; a second light-emitting unit over the intermediate layer; and an upper electrode over the second light-emitting unit. The distance between the overhang portion and each of the lower electrodes is larger than the total thickness of the first light-emitting unit and the intermediate layer over the lower electrode.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: August 8, 2017
    Assignees: Semiconductor Energy Laboratory Co., Ltd., Sharp Kabushiki Kaisha
    Inventors: Kaoru Hatano, Takashi Hamada, Kikuo Miyata, Hiromitsu Katsui, Shoji Okazaki
  • LIGHT-EMITTING DEVICE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20140103385
    Abstract: Occurrence of a crosstalk phenomenon in a light-emitting device including a tandem element is suppressed. A light-emitting device includes: lower electrodes over an insulating layer; a partition over a portion between the lower electrodes, which includes an overhang portion over an end portion of each of the lower electrodes; a first light-emitting unit over each of the lower electrodes and the partition; an intermediate layer over the first light-emitting unit; a second light-emitting unit over the intermediate layer; and an upper electrode over the second light-emitting unit. The distance between the overhang portion and each of the lower electrodes is larger than the total thickness of the first light-emitting unit and the intermediate layer over the lower electrode.
    Type: Application
    Filed: October 15, 2013
    Publication date: April 17, 2014
    Inventors: Kaoru HATANO, Takashi HAMADA, Kikuo MIYATA, Hiromitsu KATSUI, Shoji OKAZAKI