Patents by Inventor Takashi Kidu

Takashi Kidu 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).

  • Patent number: 8282436
    Abstract: A light emitting device having at least one pixel having a light emitting element includes a substrate, a partition wall formed over the substrate, and a luminous layer of the light emitting element, where the luminous layer is formed in at least one groove partitioned by the partition wall. The partition wall has a plurality of first partition walls and at least one second partition wall. Each of the first partition walls is extending in the first direction and the second partition wall is formed to extend in a second direction orthogonal to the first direction and connect end portions of the plurality of first partition walls. A lyophobic degree of the second partition wall is lower than that of a center region between both ends of each of the first partition walls in the first direction.
    Type: Grant
    Filed: July 30, 2010
    Date of Patent: October 9, 2012
    Assignee: Casio Computer Co., Ltd.
    Inventors: Takashi Kidu, Satoru Shimoda
  • Patent number: 8012526
    Abstract: The present invention improves luminance and light emitting efficiency of electroluminescent elements. A manufacturing method of electroluminescent elements includes forming a positive electrode on a substrate, forming an organic compound layer on the positive electrode, forming an electron injecting layer on the organic compound layer, and forming a transparent conductive film on the electron injecting layer, thus forming electroluminescent element. After forming the transparent conductive film on the electron injecting layer, by applying a voltage between the positive electrode and the transparent conductive film while heating the electroluminescent element, light emission of the electroluminescent element such as luminance and light emitting efficiency is improved.
    Type: Grant
    Filed: September 14, 2006
    Date of Patent: September 6, 2011
    Assignee: Casio Computer Co., Ltd.
    Inventors: Takashi Kidu, Tsuyoshi Ozaki
  • Publication number: 20110025189
    Abstract: A light emitting device having at least one pixel having a light emitting element includes a substrate, a partition wall formed over the substrate, and a luminous layer of the light emitting element, where the luminous layer is formed in at least one groove partitioned by the partition wall. The partition wall has a plurality of first partition walls and at least one second partition wall. Each of the first partition walls is extending in the first direction and the second partition wall is formed to extend in a second direction orthogonal to the first direction and connect end portions of the plurality of first partition walls. A lyophobic degree of the second partition wall is lower than that of a center region between both ends of each of the first partition walls in the first direction.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 3, 2011
    Applicant: Casio Computer Co., Ltd.
    Inventors: Takashi KIDU, Satoru Shimoda
  • Publication number: 20100051993
    Abstract: Disclosed is a light emitting apparatus including: a first electrode; at least one carrier transporting layer on the first electrode; a second electrode on the carrier transporting layer; a partition wall formed on an upper face side of a substrate the partition wall including an opening to be communicated with the first electrode; and a light emitting protecting layer mediating between the partition wall and the carrier transporting layer.
    Type: Application
    Filed: August 27, 2009
    Publication date: March 4, 2010
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Satoru SHIMODA, Tomoyuki SHIRASAKI, Takashi KIDU
  • Publication number: 20090315027
    Abstract: A manufacturing method of a light emitting device in which at least one carrier transporting layer is interposed between a first electrode and a second electrode, includes: removing a surface layer of a partition that surrounds a periphery of at least one side of the first electrode by a thickness of 50 nm or more; and forming the carrier transporting layer on the first electrode, the carrier transporting layer being in contact with the partition and containing a transition metal oxide.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 24, 2009
    Applicant: Casio Computer Co., Ltd.
    Inventors: Takashi KIDU, Minoru Kumagai
  • Publication number: 20090232970
    Abstract: Disclosed is a method of manufacturing an EL element. The EL element includes: a first electrode formed on a substrate; a carrier transport layer formed on the first electrode; a second electrode formed on the carrier transport layer; and a partition wall by which an opening is defined, the partition wall including a side wall in a longer direction of the opening and a side wall in a shorter direction of the opening, the opening being formed by surrounding the first electrode by the side wall in the longer direction and the side wall in the shorter direction. The method includes: moving a nozzle relatively along the shorter direction of the opening; and applying a liquid material, which is produced by dissolving or dispersing a material of the carrier transport layer in a solvent, to the first electrode in the opening by injecting the liquid material from the nozzle.
    Type: Application
    Filed: March 11, 2009
    Publication date: September 17, 2009
    Applicant: Casio Computer Co., Ltd.
    Inventor: Takashi KIDU
  • Publication number: 20090170230
    Abstract: A manufacturing method including applying a light emitting material solution for forming a light emitting function layer of the light emitting elements each of which has any one of a plurality of luminescent colors which carry out a color display arranged along a plurality of rows and along a plurality of columns on a substrate to a light emitting element forming region on the substrate in which the light emitting elements of a plurality of columns are formed, in an order that the light emitting material solution is not continuously applied to the light emitting element forming regions in adjacent columns among the plurality of columns and in an applying amount which is set so as to correspond to each of the luminescent colors.
    Type: Application
    Filed: December 24, 2008
    Publication date: July 2, 2009
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Takashi KIDU, Tomoko OZAKI
  • Publication number: 20070057627
    Abstract: The present invention improves luminance and light emitting efficiency of electroluminescent elements. A manufacturing method of electroluminescent elements includes forming a positive electrode on a substrate, forming an organic compound layer on the positive electrode, forming an electron injecting layer on the organic compound layer, and forming a transparent conductive film on the electron injecting layer, thus forming electroluminescent element. After forming the transparent conductive film on the electron injecting layer, by applying a voltage between the positive electrode and the transparent conductive film while heating the electroluminescent element, light emission of the electroluminescent element such as luminance and light emitting efficiency is improved.
    Type: Application
    Filed: September 14, 2006
    Publication date: March 15, 2007
    Applicant: CASIO COMPUTER CO., LTD.
    Inventors: Takashi Kidu, Tsuyoshi Ozaki