Patents by Inventor SHUUJI ONAKA

SHUUJI ONAKA 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: 9332599
    Abstract: The present invention provides a technology related to an improvement in the performance of releasing heat generated in a semiconductor light-emitting device. In a light-emitting module including a semiconductor light-emitting device provided with at least a semiconductor light-emitting element and a phosphor, and a circuit board, on the circuit board, at least a semiconductor light-emitting device including a plurality of semiconductor light-emitting elements each having a different path of a drive current to be supplied thereto, or a plurality of semiconductor light-emitting devices each having a different path of a drive current to be supplied to the semiconductor light-emitting elements is mounted. The circuit board is provided with a base material portion formed using a heat-conducting material, and a power supply conductor layer for supplying the drive currents of the semiconductor light-emitting elements to the semiconductor light-emitting device.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: May 3, 2016
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Akeo Kasakura, Shuuji Onaka, Toru Takeda, Yoshihito Satou
  • Patent number: 8814385
    Abstract: The light-emitting apparatus includes: a first light-emitting source which emits light of a first chromaticity from a first light-emitting surface; a second light-emitting source which has a second light-emitting surface provided adjacently to the first light-emitting surface and which emits light of a second chromaticity different from the first chromaticity, from the second light-emitting surface; and a lens member having a light-entering surface which is arranged facing the first light-emitting surface and the second light-emitting surface and on which depressions and projections that mix light entering from the first light-emitting source and the second light-emitting source are formed, and a light-exiting surface which radiates light from the first light-emitting source and the second light-emitting source that has entered from the light-entering surface.
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: August 26, 2014
    Assignee: Mitsubishi Chemical Corporation
    Inventors: Shuuji Onaka, Akeo Kasakura, Toru Takeda
  • Publication number: 20140191655
    Abstract: The present invention provides a technology related to an improvement in the performance of releasing heat generated in a semiconductor light-emitting device. In a light-emitting module including a semiconductor light-emitting device provided with at least a semiconductor light-emitting element and a phosphor, and a circuit board, on the circuit board, at least a semiconductor light-emitting device including a plurality of semiconductor light-emitting elements each having a different path of a drive current to be supplied thereto, or a plurality of semiconductor light-emitting devices each having a different path of a drive current to be supplied to the semiconductor light-emitting elements is mounted. The circuit board is provided with a base material portion formed using a heat-conducting material, and a power supply conductor layer for supplying the drive currents of the semiconductor light-emitting elements to the semiconductor light-emitting device.
    Type: Application
    Filed: January 15, 2014
    Publication date: July 10, 2014
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Akeo KASAKURA, Shuuji Onaka, Toru Takeda, Yoshihito Satou
  • Publication number: 20130092965
    Abstract: An object of the present invention is to provide a light emitting device exhibiting a superior emission efficiency which enables easy adjustment of an emission spectrum. The above object is achieved by a light emitting device comprising a semiconductor light emitting element and a phosphor layer, which has an area A and an area B of different emission spectra, and in which a plurality of phosphor portions are disposed on a plane such that identical phosphor portions do not adjoin one another, and the surface area occupied by specific phosphor portions in the phosphor layer is different in area A and area B.
    Type: Application
    Filed: October 1, 2012
    Publication date: April 18, 2013
    Inventors: NAOTO KIJIMA, TADAHIRO KATSUMOTO, FUMIKO YOYASU, HIROYA KODAMA, TOSHIAKI YOKOO, TORU TAKEDA, SHUUJI ONAKA