Patents by Inventor Hirofumi Fukutsuka

Hirofumi Fukutsuka 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, lighting device, light-emitting device assembly, and method for producing light-emitting device
    Patent number: 9172010
    Abstract: A light-emitting device includes a substrate including a mirror surface region on its upper surface, a semiconductor light-emitting element disposed in the mirror surface region, and an encapsulating layer joined onto the upper surface of the substrate. The encapsulating layer includes a lower layer that is in contact with the upper surface of the substrate, covers the surrounding of the semiconductor light-emitting element, and contains phosphor; and an upper layer that is positioned on the lower layer, and has a larger phosphor content per unit area than that of the lower layer.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: October 27, 2015
    Assignee: NITTO DENKO CORPORATION
    Inventors: Shinsuke Wakiya, Toshikazu Takagi, Hirofumi Fukutsuka, Yasunari Ooyabu, Hiroyuki Katayama, Takashi Kondo, Hiroki Kono
  • LIGHT-EMITTING DEVICE, LIGHTING DEVICE, LIGHT-EMITTING DEVICE ASSEMBLY, AND METHOD FOR PRODUCING LIGHT-EMITTING DEVICE
    Publication number: 20130228803
    Abstract: A light-emitting device includes a substrate including a mirror surface region on its upper surface, a semiconductor light-emitting element disposed in the mirror surface region, and an encapsulating layer joined onto the upper surface of the substrate. The encapsulating layer includes a lower layer that is in contact with the upper surface of the substrate, covers the surrounding of the semiconductor light-emitting element, and contains phosphor; and an upper layer that is positioned on the lower layer, and has a larger phosphor content per unit area than that of the lower layer.
    Type: Application
    Filed: February 27, 2013
    Publication date: September 5, 2013
    Applicant: NITTO DENKO CORPORATION
    Inventors: Shinsuke Wakiya, Toshikazu Takagi, Hirofumi Fukutsuka, Yasunari Ooyabu, Hiroyuki Katayama, Takashi Kondo, Hiroki Kono