Patents by Inventor Hirofumi Takenaka

Hirofumi Takenaka 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).

  • Publication number: 20240180016
    Abstract: According to one embodiment, a method of manufacturing a display device, includes forming a lower electrode on a base including a first main surface and a side surface, the lower electrode being on the first main surface of the base, forming a rib including a pixel aperture, forming a partition on the rib, forming a first deposition film which includes a first organic layer which covers the lower electrode via the pixel aperture and a first upper electrode which covers the first organic layer and forming a first sealing layer which covers the first deposition film. The first sealing layer includes a first upper end portion which covers the first deposition film and a first side end portion which covers the side surface.
    Type: Application
    Filed: October 31, 2023
    Publication date: May 30, 2024
    Applicant: Japan Display Inc.
    Inventors: Masaru TAKAYAMA, Takanobu TAKENAKA, Hirofumi MIZUKOSHI, Yuki HAMADA
  • Publication number: 20240112932
    Abstract: According to one embodiment, a manufacturing device of a display device includes a conveyance mechanism for conveying a processing substrate in a first direction, and first, second, third and fourth evaporation portions arranged in order in the first direction. The first evaporation portion includes a plurality of evaporation chambers for forming an organic layer. The second evaporation portion includes an evaporation chamber for forming an upper electrode. The third evaporation portion includes an evaporation chamber for forming a first transparent layer. The fourth evaporation portion includes an evaporation chamber for forming a second transparent layer having a refractive index less than a refractive index of the first transparent layer on the first transparent layer.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 4, 2024
    Applicant: Japan Display Inc.
    Inventors: Takanobu TAKENAKA, Hirofumi MIZUKOSHI, Masaru TAKAYAMA, Yuki HAMADA
  • Publication number: 20240099110
    Abstract: According to one embodiment, a manufacturing method of a display device includes preparing a processing substrate by forming a lower electrode, a rib and a partition, forming an organic layer on the lower electrode, forming an upper electrode on the organic layer, forming a first transparent layer on the upper electrode by depositing a first organic material, forming a second transparent layer on the first transparent layer by depositing a second organic material, and depositing the second organic material on each of a plurality of crystal oscillators included in a film thickness measurement device by emitting the second organic material from first and second nozzles of an evaporation source before forming the second transparent layer.
    Type: Application
    Filed: September 20, 2023
    Publication date: March 21, 2024
    Applicant: Japan Display Inc.
    Inventors: Hirofumi MIZUKOSHI, Takanobu TAKENAKA, Masaru TAKAYAMA, Kaichi FUKUDA
  • Patent number: 5090176
    Abstract: A method of installing concrete slabs on girders includes arranging a girder to extend along a moving direction of slabs to be installed. A first slab then is positioned at a mounting position at an upstream end, relative to the moving direction, of the girder. The first slab then is moved from the mounting position in the downstream direction by a predetermined distance. Another slab then is positioned at the mounting position after removal therefrom of the first slab. Then another slab is moved in the downstream direction together with the first slab. The operations of positioning slabs and moving the slabs in the downstream direction are repeated until the installation is completed.
    Type: Grant
    Filed: May 16, 1990
    Date of Patent: February 25, 1992
    Assignee: Harumoto Iron Works Co., Ltd.
    Inventors: Hiroo Kishida, Hirofumi Takenaka
  • Patent number: 4710994
    Abstract: A composite structural member is formed by fixedly mounting a prestressed concrete slab having compressive stress acting along pc steel wires buried therein on a beam. The compressive stress is thereafter released from the prestressed concrete slab by loosening a turnbuckle or the like provided in the prestressed concrete slab, so as to produce in the beam a tensile force acting in the same direction as the direction of the compressive stress acting in the prestressed concrete slab and a bending moment.The slabs, placed in a side by side and end to end configuration, have undulated end surfaces spaced apart on a beam. The ends abut dowels fixed to the main beam. The space defined by the end surfaces with the dowels is filled with mortar to integrally fix the slab to the beam.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: December 8, 1987
    Assignee: Harumoto Iron Works Co., Ltd.
    Inventors: Hiroo Kishida, Hirofumi Takenaka
  • Patent number: 4641816
    Abstract: An apparatus for stretching, loosening, and fixing a wire member includes a grasping member for grasping an end of the wire member, a displacing member for displacing the grasping member so as to stretch/loosen the wire member in the longitudinal direction thereof, a fixing member having a wedge receiving face, and a wedge member disposed axially between the fixing member and the grasping member. The wedge has a wedge face tapering toward the wedge receiving face of the fixing member and is divided circumferentially into a plurality of parts. A pushing member pushes the wedge member toward the wedge receiving face of the fixing member, and a holding member holds the wedge member away from the fixing member when the wire member is stretched/loosened by the displacing member.
    Type: Grant
    Filed: June 12, 1985
    Date of Patent: February 10, 1987
    Assignee: Harumoto Iron Works Co., Ltd.
    Inventors: Hiroo Kishida, Hirofumi Takenaka