Patents by Inventor Takaharu Hoshina

Takaharu Hoshina 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: 20200350597
    Abstract: An electrode of a redox flow battery, provided with a liquid inflow layer (1) into which an electrolytic solution flows, a liquid outflow layer (3) from which the electrolytic solution flows out, and a main electrode layer (2) disposed between the liquid inflow layer (1) and the liquid outflow layer (3). The liquid outflow layer (3) has a thickness that is less than that of the liquid inflow layer (1). Also disclosed is a redox flow battery including an ion exchange membrane, the electrode and a current collector plate in this order. The electrode is arranged such that the liquid inflow layer is on a side of the current collector plate and the liquid outflow layer is on a side of the ion exchange membrane.
    Type: Application
    Filed: December 14, 2018
    Publication date: November 5, 2020
    Applicant: SHOWA DENKO K. K.
    Inventors: Takaharu HOSHINA, Miyuki TOMITA
  • Patent number: 8378369
    Abstract: A light emitting unit (60) is provided with a resin container (61) in which a recessed portion (61a) is formed, an anode lead portion (62) and a cathode lead portion (63) which are provided so as to be exposed on the bottom surface of the recessed portion (61a), a semiconductor light emitting element (64) attached to the cathode lead portion (63) on the bottom surface (70) of the recessed portion (61a), and a sealing resin (65) provided so as to cover the recessed portion (61a). The resin container (61) is produced from a white resin containing titania as a coloring agent. The anode lead portion (62) and the cathode lead portion (63) are each configured by forming a silver-plated layer with the gloss level set in the range of 0.3-1.0 inclusive on a metal plate based on a copper alloy or the like. Thus, the efficiency of extraction of light outputted from the light emitting unit is improved.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: February 19, 2013
    Assignee: Showa Denko K.K.
    Inventors: Kenzo Hanawa, Takaharu Hoshina, Tomoyuki Takei
  • Patent number: 8174038
    Abstract: A light emitting device includes a board, a semiconductor light emitting element formed on the board optionally via a submount, a cap sealing the semiconductor light emitting element and a reflector provided surrounding the cap. The cap has top and bottom surfaces that are parallel to the top surface of the semiconductor light emitting element, and the spacing between the top and bottom surfaces is 1-3 times the longest diagonal or the diameter of the semiconductor light emitting element. Also disclosed is a process for producing the device.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: May 8, 2012
    Assignee: Showa Denko K.K.
    Inventor: Takaharu Hoshina
  • Publication number: 20120044667
    Abstract: A light emitting unit (60) is provided with a resin container (61) in which a recessed portion (61a) is formed, an anode lead portion (62) and a cathode lead portion (63) which are provided so as to be exposed on the bottom surface of the recessed portion (61a), a semiconductor light emitting element (64) attached to the cathode lead portion (63) on the bottom surface (70) of the recessed portion (61a), and a sealing resin (65) provided so as to cover the recessed portion (61a). The resin container (61) is produced from a white resin containing titania as a coloring agent. The anode lead portion (62) and the cathode lead portion (63) are each configured by forming a silver-plated layer with the gloss level set in the range of 0.3-1.0 inclusive on a metal plate based on a copper alloy or the like. Thus, the efficiency of extraction of light outputted from the light emitting unit is improved.
    Type: Application
    Filed: September 1, 2009
    Publication date: February 23, 2012
    Applicant: SHOWA DENKO K.K.
    Inventors: Kenzo Hanawa, Takaharu Hoshina, Tomoyuki Takei
  • Patent number: 8058668
    Abstract: An object of the present invention is to provide a light-emitting apparatus reduced in the optical self-absorption of the light-emitting device and assured of excellent light extraction efficiency. The inventive light-emitting apparatus comprises a substrate, a semiconductor light-emitting device provided on the substrate with or without intervention of a submount, and an encapsulating structure for encapsulating the semiconductor light-emitting device, wherein the encapsulating structure has a bottom parallel to the bottom of the semiconductor light-emitting device and the side surface of the encapsulating structure is tilted with respect to the bottom.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: November 15, 2011
    Assignee: Showa Denko K.K.
    Inventor: Takaharu Hoshina
  • Publication number: 20100059787
    Abstract: An object of the present invention is to provide a light-emitting apparatus reduced in the optical self-absorption of the light-emitting device and assured of excellent light extraction efficiency. The inventive light-emitting apparatus comprises a substrate, a semiconductor light-emitting device provided on the substrate with or without intervention of a submount, and an encapsulating structure for encapsulating the semiconductor light-emitting device, wherein the encapsulating structure has a bottom parallel to the bottom of the semiconductor light-emitting device and the side surface of the encapsulating structure is tilted with respect to the bottom.
    Type: Application
    Filed: May 13, 2008
    Publication date: March 11, 2010
    Applicant: SHOWA DENKO K.K.
    Inventor: Takaharu Hoshina
  • Publication number: 20090078957
    Abstract: A light emitting device includes a board, a semiconductor light emitting element formed on the board optionally via a submount, a cap sealing the semiconductor light emitting element and a reflector provided surrounding the cap. The cap has top and bottom surfaces that are parallel to the top surface of the semiconductor light emitting element, and the spacing between the top and bottom surfaces is 1-3 times the longest diagonal or the diameter of the semiconductor light emitting element. Also disclosed is a process for producing the device.
    Type: Application
    Filed: February 5, 2007
    Publication date: March 26, 2009
    Applicant: Showa Denko K.K.
    Inventor: Takaharu Hoshina
  • Patent number: 6677615
    Abstract: A semiconductor light-emitting device includes a semiconductor substrate that has a rear surface formed with a first electrode, a semiconductor layer that includes a light-emitting portion and is formed on the semiconductor substrate, a plurality of dispersed electrodes that are individually formed on a part of the surface of the semiconductor layer to make ohmic contact with the semiconductor layer, a transparent conductive film that covers the surface of the semiconductor layer and the dispersed electrodes to electrically conduct with the dispersed electrodes, and a pad electrode that is formed on a part of the surface of the transparent conductive film to electrically conduct with the transparent conductive film.
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: January 13, 2004
    Assignee: Showa Denko K.K.
    Inventors: Ryouichi Takeuchi, Kazuhiro Mitani, Wataru Nabekura, Takashi Udagawa, Takaharu Hoshina
  • Publication number: 20030052323
    Abstract: A semiconductor light-emitting device includes a semiconductor substrate that has a rear surface formed with a first electrode, a semiconductor layer that includes a light-emitting portion and is formed on the semiconductor substrate, a plurality of dispersed electrodes that are individually formed on a part of the surface of the semiconductor layer to make ohmic contact with the semiconductor layer, a transparent conductive film that covers the surface of the semiconductor layer and the dispersed electrodes to electrically conduct with the dispersed electrodes, and a pad electrode that is formed on a part of the surface of the transparent conductive film to electrically conduct with the transparent conductive film.
    Type: Application
    Filed: October 7, 2002
    Publication date: March 20, 2003
    Applicant: SHOWA DENKO K.K.
    Inventors: Ryouichi Takeuchi, Kazuhiro Mitani, Wataru Nabekura, Takashi Udagawa, Takaharu Hoshina
  • Patent number: 6512248
    Abstract: A semiconductor light-emitting device includes a semiconductor substrate that has a rear surface formed with a first electrode, a semiconductor layer that includes a light-emitting portion and is formed on the semiconductor substrate, a plurality of dispersed electrodes that are individually formed on a part of the surface of the semiconductor layer to make ohmic contact with the semiconductor layer, a transparent conductive film that covers the surface of the semiconductor layer and the dispersed electrodes to electrically conduct with the dispersed electrodes, and a pad electrode that is formed on a part of the surface of the transparent conductive film to electrically conduct with the transparent conductive film.
    Type: Grant
    Filed: October 19, 2000
    Date of Patent: January 28, 2003
    Assignee: Showa Denko K.K.
    Inventors: Ryouichi Takeuchi, Kazuhiro Mitani, Wataru Nabekura, Takashi Udagawa, Takaharu Hoshina