Patents by Inventor Kensei Toyota

Kensei Toyota 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: 9863595
    Abstract: A light-emitting unit according to the present invention includes: a fluorescent section for emitting light upon irradiation with a laser beam; and a wavelength selection filter being provided so as to face the fluorescent section. The wavelength selection filter reflects the laser beam toward the fluorescent section and transmits fluorescence emitted from the fluorescent section.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: January 9, 2018
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Tomohiro Sakaue, Kensei Toyota
  • 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: 9328890
    Abstract: A light-projecting device according to the present invention includes a plurality of light source units including (i) a light emitting section that emits light upon receiving a laser beam and (ii) a reflector. Each of the light source units project light to a corresponding one of light-projected spots which is a region to which light is projected in an illuminated region in a partitioning manner, and the illuminated region is formed by combining a plurality of the light-projected spot.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: May 3, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiyuki Takahira, Yosuke Maemura, Koji Takahashi, Kensei Toyota
  • 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: 9223071
    Abstract: A headlamp includes the laser chip which emits excitation light, a light-emitting section which contains a phosphor, and an optical rod. The excitation light emitted from the laser chip is optically guided by the optical rod, and the light output from the optical rod enters the light-emitting section. An edge is present in the light intensity distribution of the light-emitting section.
    Type: Grant
    Filed: August 21, 2013
    Date of Patent: December 29, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Tomohiro Sakaue, Kensei Toyota
  • Publication number: 20150308648
    Abstract: A light-projecting device according to the present invention includes a plurality of light source units including (i) a light emitting section that emits light upon receiving a laser beam and (ii) a reflector. Each of the light source units project light to a corresponding one of light-projected spots which is a region to which light is projected in an illuminated region in a partitioning manner, and the illuminated region is formed by combining a plurality of the light-projected spot.
    Type: Application
    Filed: July 7, 2015
    Publication date: October 29, 2015
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshiyuki TAKAHIRA, Yosuke MAEMURA, Koji TAKAHASHI, Kensei TOYOTA
  • Patent number: 9108568
    Abstract: A light-projecting device according to the present invention includes a plurality of light source units including (i) a light emitting section that emits light upon receiving a laser beam and (ii) a reflector. Each of the light source units project light to a corresponding one of light-projected spots which is a region to which light is projected in an illuminated region in a partitioning manner, and the illuminated region is formed by combining a plurality of the light-projected spot.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: August 18, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiyuki Takahira, Yosuke Maemura, Koji Takahashi, Kensei Toyota
  • Publication number: 20150062943
    Abstract: A light-emitting unit according to the present invention includes: a fluorescent section for emitting light upon irradiation with a laser beam; and a wavelength selection filter being provided so as to face the fluorescent section. The wavelength selection filter reflects the laser beam toward the fluorescent section and transmits fluorescence emitted from the fluorescent section.
    Type: Application
    Filed: August 11, 2014
    Publication date: March 5, 2015
    Inventors: Yoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Tomohiro SAKAUE, Kensei TOYOTA
  • 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: 20140056021
    Abstract: A headlamp includes the laser chip which emits excitation light, a light-emitting section which contains a phosphor, and an optical rod. The excitation light emitted from the laser chip is optically guided by the optical rod, and the light output from the optical rod enters the light-emitting section. An edge is present in the light intensity distribution of the light-emitting section.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 27, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Yoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Tomohiro SAKAUE, Kensei TOYOTA
  • 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
  • Publication number: 20130003403
    Abstract: A light-projecting device according to the present invention includes a plurality of light source units including (i) a light emitting section that emits light upon receiving a laser beam and (ii) a reflector. Each of the light source units project light to a corresponding one of light-projected spots which is a region to which light is projected in an illuminated region in a partitioning manner, and the illuminated region is formed by combining a plurality of the light-projected spot.
    Type: Application
    Filed: June 26, 2012
    Publication date: January 3, 2013
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Yoshiyuki TAKAHIRA, Yosuke MAEMURA, Koji TAKAHASHI, Kensei TOYOTA