Patents by Inventor Yuji Kozuma

Yuji Kozuma 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).

  • Illumination device
    Patent number: 8985793
    Abstract: An illumination device with a toning function in which possibility of moisture and dust intruding into the case is reduced with a simple mechanism is realized.
    Type: Grant
    Filed: June 27, 2011
    Date of Patent: March 24, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinji Osaki, Toyonori Uemura, Toshio Hata, Junichi Somei, Yuji Kozuma, Kenji Hatazawa, Tomokazu Nada, Makoto Agatani, Shinya Ishizaki, Tatsuya Morioka, Makoto Matsuda
  • ILLUMINATION DEVICE
    Publication number: 20130128493
    Abstract: An illumination device with a toning function in which possibility of moisture and dust intruding into the case is reduced with a simple mechanism is realized.
    Type: Application
    Filed: June 27, 2011
    Publication date: May 23, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Shinji Osaki, Toyonori Uemura, Toshio Hata, Junichi Somei, Yuji Kozuma, Kenji Hatazawa, Tomokazu Nada, Makoto Agatani, Shinya Ishizaki, Tatsuya Morioka, Makoto Matsuda
  • LED light bulb
    Patent number: 8342719
    Abstract: In an LED light bulb, an LED module and a lens are disposed on a fixing stage provided to a housing. The lens has a concave portion at its top end. The concave portion forms a reflecting surface which reflects part of outgoing light from the LED module to (i) first directions perpendicular to a front emission direction of the outgoing light or (ii) second directions leaning to a cap beyond the first directions. Due to diffusion effect of an optical cover, part of the light reflected by the lens is emitted backward (toward the cap). This realizes an LED light bulb that distributes light over an entire circumference and has high output as well as high light output ratio.
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: January 1, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Motoki Takase, Masako Horiyama, Junichi Somei, Yuji Kozuma
  • Multi-feed horn, low noise block downconverter provided with the same and antenna apparatus
    Patent number: 8049675
    Abstract: A multi-feed horn includes a first feed horn, a second feed horn and a third feed horn which are connected to a first waveguide, a second waveguide and a third waveguide, respectively. The first feed horn is provided with a first proximal end opening and a first tip opening which are rectangular in shape, the second feed horn is provided with a second proximal end opening and a second tip opening which are rectangular in shape, and the third feed horn is provided with a third proximal end opening and a third tip opening which are rectangular in shape. Consequently, a multi-feed horn, a low noise block downconverter and an antenna apparatus which allow a further improvement in the reception characteristic and in the manufacturing accuracy can be provided.
    Type: Grant
    Filed: March 25, 2009
    Date of Patent: November 1, 2011
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yuji Kozuma, Hitoshi Tanaka
  • LED LIGHT BULB
    Publication number: 20110170299
    Abstract: In an LED light bulb, an LED module and a lens are disposed on a fixing stage provided to a housing. The lens has a concave portion at its top end. The concave portion forms a reflecting surface which reflects part of outgoing light from the LED module to (i) first directions perpendicular to a front emission direction of the outgoing light or (ii) second directions leaning to a cap beyond the first directions. Due to diffusion effect of an optical cover, part of the light reflected by the lens is emitted backward (toward the cap). This realizes an LED light bulb that distributes light over an entire circumference and has high output as well as high light output ratio.
    Type: Application
    Filed: January 6, 2011
    Publication date: July 14, 2011
    Inventors: Motoki TAKASE, Masako HORIYAMA, Junichi SOMEI, Yuji KOZUMA
  • MULTI-FEED HORN, LOW NOISE BLOCK DOWNCONVERTER PROVIDED WITH THE SAME AND ANTENNA APPARATUS
    Publication number: 20090267853
    Abstract: A multi-feed horn includes a first feed horn, a second feed horn and a third feed horn which are connected to a first waveguide, a second waveguide and a third waveguide, respectively. The first feed horn is provided with a first proximal end opening and a first tip opening which are rectangular in shape, the second feed horn is provided with a second proximal end opening and a second tip opening which are rectangular in shape, and the third feed horn is provided with a third proximal end opening and a third tip opening which are rectangular in shape. Consequently, a multi-feed horn, a low noise block downconverter and an antenna apparatus which allow a further improvement in the reception characteristic and in the manufacturing accuracy can be provided.
    Type: Application
    Filed: March 25, 2009
    Publication date: October 29, 2009
    Inventors: Yuji Kozuma, Hitoshi Tanaka