Patents by Inventor Kouta YOSHIZAWA

Kouta YOSHIZAWA 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: 10361348
    Abstract: A spot lighting apparatus includes a first reflection unit, a semiconductor light emitting device, a second reflection unit being provided on an optical axis of the semiconductor light emitting device, and a fixing unit fixing the second reflection unit to be separated from the semiconductor light emitting device, wherein the second reflection unit receives a part of a light released from the semiconductor light emitting device and reflects it toward the first reflection unit, the first reflection unit receives a part of a light released from the semiconductor light emitting device and all or a part of a light reflected on the second reflection unit and reflects them toward the opening part, and the light reflected on the first reflection unit and emitted from the opening part is 80% or more of total lights emitted from the opening part.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: July 23, 2019
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Kouta Yoshizawa, Akeo Kasakura
  • Publication number: 20170256693
    Abstract: A spot lighting apparatus includes a first reflection unit, a semiconductor light emitting device, a second reflection unit being provided on an optical axis of the semiconductor light emitting device, and a fixing unit fixing the second reflection unit to be separated from the semiconductor light emitting device, wherein the second reflection unit receives a part of a light released from the semiconductor light emitting device and reflects it toward the first reflection unit, the first reflection unit receives a part of a light released from the semiconductor light emitting device and all or a part of a light reflected on the second reflection unit and reflects them toward the opening part, and the light reflected on the first reflection unit and emitted from the opening part is 80% or more of total lights emitted from the opening part.
    Type: Application
    Filed: May 19, 2017
    Publication date: September 7, 2017
    Applicant: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Kouta YOSHIZAWA, Akeo KASAKURA
  • Publication number: 20150138780
    Abstract: The illumination device includes: a case; a heat sink which has a bottom part in which an LED module is installed, a cylindrical wall part standing upright from the bottom part and disposed such that a clearance is created between the cylindrical wall part and an inner wall surface of the case, and an open end formed at the front end of the cylindrical wall part; a fan which is housed in the case; an air intake passage which guides to the fan, air introduced from the lateral side of the case into the case; and an air discharge passage which is formed along the outer surface of the bottom part and the outer wall surface of the cylindrical wall part in the heat sink and discharges the air sent from the fan from the front end side of the heat sink to the outside.
    Type: Application
    Filed: January 27, 2015
    Publication date: May 21, 2015
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Kouta YOSHIZAWA, Toshihiko KURIYAMA, Akeo KASAKURA, Yuki KOHARA, Toru TAKEDA
  • Patent number: D742557
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: November 3, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Kouta Yoshizawa, Hiroyuki Ooshima, Akeo Kasakura
  • Patent number: D743058
    Type: Grant
    Filed: July 10, 2014
    Date of Patent: November 10, 2015
    Assignee: MITSUBISHI CHEMICAL CORPORATION
    Inventors: Shuuji Oonaka, Kouta Yoshizawa, Keisuke Tajima