Patents by Inventor Hiroshi Kijima

Hiroshi Kijima 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: 10514151
    Abstract: A headlamp includes a light-emitting section which emits fluorescence upon receiving excitation light from a laser element. Energy intensity distribution of the excitation light, which is received by the light-emitting section, is a top-hat distribution.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: December 24, 2019
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Hiroshi Kijima
  • Publication number: 20180356069
    Abstract: A headlamp includes a light-emitting section which emits fluorescence upon receiving excitation light from a laser element. Energy intensity distribution of the excitation light, which is received by the light-emitting section, is a top-hat distribution.
    Type: Application
    Filed: July 25, 2018
    Publication date: December 13, 2018
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Hiroshi KIJIMA
  • Patent number: 10066809
    Abstract: A headlamp (1) includes a light-emitting section (4) which emits fluorescence upon receiving excitation light from a laser element (2). Energy intensity distribution of the excitation light, which is received by the light-emitting section (4), is a top-hat distribution.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: September 4, 2018
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Hiroshi Kijima
  • Patent number: 9562661
    Abstract: A headlight of the present invention includes: a fluorescent material light-emitting section; a reflector that reflects light emitted from the fluorescent material light-emitting section so as to emit reflected light out of the headlight; and a mini-mirror that reflects, toward a predetermined surface of the fluorescent material light-emitting section provided substantially at a focal point of the reflector, at least part of light that has not been directed toward the reflector. The mini-mirror has its optical axis inclined with respect to a normal line of the predetermined surface.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: February 7, 2017
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hiroshi Kijima, Kensei Toyota, Koji Takahashi
  • Patent number: 9534756
    Abstract: A light-emitting device includes a light-emitting section, a lens, and a movement control section, the movement control section changing an illumination position and a spot size of a laser beam in the light-emitting section by changing a relative position of the lens with respect to the light-emitting section.
    Type: Grant
    Filed: March 29, 2013
    Date of Patent: January 3, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Hiroshi Kijima, Tomohiro Sakaue
  • Patent number: 9291759
    Abstract: In a head lamp 1, relative positions of a laser light guide path in a tapered light guide section 20 and a parabolic mirror 5 are fixed. An optical fiber 10 and the tapered light guide section 20 are each provided so as to have a receiving end part where laser light is received and an emitting end part where laser light is emitted. The emitting end part of the optical fiber 10 is located near the receiving end part of the tapered light guide section 20.
    Type: Grant
    Filed: September 4, 2014
    Date of Patent: March 22, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kensei Toyota, Hiroshi Kijima, Koji Takahashi
  • Patent number: 9270975
    Abstract: A receiver (101) that receives main information (2) including 2D video content and complementary information (3) for converting the 2D video content to 3D, and an integrating unit (102) that integrates the main information (2) and the complementary information (3), received by the receiver (101), as integrated information (4) by using the main information (2) and the complementary information (3) are provided. Accordingly, 3D video can be viewed without changing the broadcasting format of the current 2D broadcasting or without degrading the image quality.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: February 23, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hideharu Tajima, Hiroshi Kijima
  • Patent number: 9233639
    Abstract: A light-emitting device includes a plurality of laser elements, a light-emitting section for emitting light in response to a laser beam, and an emission control section for controlling whether each of the plurality of laser elements emits light or not. At least a part of the plurality of laser elements is positioned in such a manner that irradiation regions of the light-emitting section are positioned at least partially differently.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: January 12, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Hiroshi Kijima
  • Publication number: 20150251587
    Abstract: A light-emitting device includes a plurality of laser elements, a light-emitting section for emitting light in response to a laser beam, and an emission control section for controlling whether each of the plurality of laser elements emits light or not. At least a part of the plurality of laser elements is positioned in such a manner that irradiation regions of the light-emitting section are positioned at least partially differently.
    Type: Application
    Filed: May 26, 2015
    Publication date: September 10, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Hiroshi KIJIMA
  • Patent number: 9068714
    Abstract: A light-emitting device includes a plurality of laser elements, a light-emitting section for emitting light in response to a laser beam, and an emission control section for controlling whether each of the plurality of laser elements emits light or not. At least a part of the plurality of laser elements is positioned in such a manner that irradiation regions of the light-emitting section are positioned at least partially differently.
    Type: Grant
    Filed: April 2, 2013
    Date of Patent: June 30, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Hiroshi Kijima
  • Publication number: 20140369065
    Abstract: In a head lamp 1, relative positions of a laser light guide path in a tapered light guide section 20 and a parabolic mirror 5 are fixed. An optical fiber 10 and the tapered light guide section 20 are each provided so as to have a receiving end part where laser light is received and an emitting end part where laser light is emitted. The emitting end part of the optical fiber 10 is located near the receiving end part of the tapered light guide section 20.
    Type: Application
    Filed: September 4, 2014
    Publication date: December 18, 2014
    Inventors: Kensei TOYOTA, Hiroshi KIJIMA, Koji TAKAHASHI
  • Patent number: 8864328
    Abstract: In a head lamp 1, relative positions of a laser light guide path in a tapered light guide section 20 and a parabolic mirror 5 are fixed. An optical fiber 10 and the tapered light guide section 20 are each provided so as to have a receiving end part where laser light is received and an emitting end part where laser light is emitted. The emitting end part of the optical fiber 10 is located near the receiving end part of the tapered light guide section 20.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: October 21, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kensei Toyota, Hiroshi Kijima, Koji Takahashi
  • Publication number: 20130265561
    Abstract: A light-emitting device includes a plurality of laser elements, a light-emitting section for emitting light in response to a laser beam, and an emission control section for controlling whether each of the plurality of laser elements emits light or not. At least a part of the plurality of laser elements is positioned in such a manner that irradiation regions of the light-emitting section are positioned at least partially differently.
    Type: Application
    Filed: April 2, 2013
    Publication date: October 10, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Hiroshi KIJIMA
  • Publication number: 20130258689
    Abstract: A light-emitting device includes a light-emitting section, a lens, and a movement control section, the movement control section changing an illumination position and a spot size of a laser beam in the light-emitting section by changing a relative position of the lens with respect to the light-emitting section.
    Type: Application
    Filed: March 29, 2013
    Publication date: October 3, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Hiroshi KIJIMA, Tomohiro SAKAUE
  • Publication number: 20130222540
    Abstract: A receiver (101) that receives main information (2) including 2D video content and complementary information (3) for converting the 2D video content to 3D, and an integrating unit (102) that integrates the main information (2) and the complementary information (3), received by the receiver (101), as integrated information (4) by using the main information (2) and the complementary information (3) are provided. Accordingly, 3D video can be viewed without changing the broadcasting format of the current 2D broadcasting or without degrading the image quality.
    Type: Application
    Filed: November 10, 2011
    Publication date: August 29, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Hideharu Tajima, Hiroshi Kijima
  • Publication number: 20130027964
    Abstract: In a head lamp 1, relative positions of a laser light guide path in a tapered light guide section 20 and a parabolic mirror 5 are fixed. An optical fiber 10 and the tapered light guide section 20 are each provided so as to have a receiving end part where laser light is received and an emitting end part where laser light is emitted. The emitting end part of the optical fiber 10 is located near the receiving end part of the tapered light guide section 20.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 31, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kensei TOYOTA, Hiroshi Kijima, Koji Takahashi
  • Publication number: 20130003400
    Abstract: A headlight of the present invention includes: a fluorescent material light-emitting section; a reflector that reflects light emitted from the fluorescent material light-emitting section so as to emit reflected light out of the headlight; and a mini-mirror that reflects, toward a predetermined surface of the fluorescent material light-emitting section provided substantially at a focal point of the reflector, at least part of light that has not been directed toward the reflector. The mini-mirror has its optical axis inclined with respect to a normal line of the predetermined surface.
    Type: Application
    Filed: June 4, 2012
    Publication date: January 3, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Hiroshi KIJIMA, Kensei Toyota, Koji Takahashi
  • Patent number: 5223350
    Abstract: There are disclosed a mold material for molding of an optical part, composed of at least the molding surface of a mold for molding, which comprises a sintered body or a coated layer composed mainly of at least one chromium compound selected from chromium oxide, chromium oxycarbide, chromium oxynitride and chromium oxycarbonitride and a process for producing the same.When an optical part is molded by use of the mold of the present invention, the optical part after molding can be easily taken out from the mold, and the mold has a long lifetime, and also the optical part obtained has excellent surface precision.
    Type: Grant
    Filed: March 15, 1990
    Date of Patent: June 29, 1993
    Assignee: Toshiba Tungaloy Co., Ltd.
    Inventors: Masaki Kobayashi, Tomoyuki Oshita, Hiroshi Kijima