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).
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Patent number: 10514151Abstract: 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: GrantFiled: July 25, 2018Date of Patent: December 24, 2019Assignee: Sharp Kabushiki KaishaInventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Hiroshi Kijima
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Publication number: 20180356069Abstract: 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: ApplicationFiled: July 25, 2018Publication date: December 13, 2018Applicant: Sharp Kabushiki KaishaInventors: Yoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Hiroshi KIJIMA
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Patent number: 10066809Abstract: 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: GrantFiled: January 17, 2013Date of Patent: September 4, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Hiroshi Kijima
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Patent number: 9562661Abstract: 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: GrantFiled: June 4, 2012Date of Patent: February 7, 2017Assignee: Sharp Kabushiki KaishaInventors: Hiroshi Kijima, Kensei Toyota, Koji Takahashi
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Patent number: 9534756Abstract: 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: GrantFiled: March 29, 2013Date of Patent: January 3, 2017Assignee: SHARP KABUSHIKI KAISHAInventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Hiroshi Kijima, Tomohiro Sakaue
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Patent number: 9291759Abstract: 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: GrantFiled: September 4, 2014Date of Patent: March 22, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Kensei Toyota, Hiroshi Kijima, Koji Takahashi
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Patent number: 9270975Abstract: 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: GrantFiled: November 10, 2011Date of Patent: February 23, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Hideharu Tajima, Hiroshi Kijima
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Patent number: 9233639Abstract: 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: GrantFiled: May 26, 2015Date of Patent: January 12, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Hiroshi Kijima
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Publication number: 20150251587Abstract: 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: ApplicationFiled: May 26, 2015Publication date: September 10, 2015Applicant: SHARP KABUSHIKI KAISHAInventors: Yoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Hiroshi KIJIMA
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Patent number: 9068714Abstract: 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: GrantFiled: April 2, 2013Date of Patent: June 30, 2015Assignee: Sharp Kabushiki KaishaInventors: Yoshiyuki Takahira, Koji Takahashi, Yosuke Maemura, Hiroshi Kijima
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Publication number: 20140369065Abstract: 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: ApplicationFiled: September 4, 2014Publication date: December 18, 2014Inventors: Kensei TOYOTA, Hiroshi KIJIMA, Koji TAKAHASHI
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Patent number: 8864328Abstract: 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: GrantFiled: July 20, 2012Date of Patent: October 21, 2014Assignee: Sharp Kabushiki KaishaInventors: Kensei Toyota, Hiroshi Kijima, Koji Takahashi
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Publication number: 20130265561Abstract: 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: ApplicationFiled: April 2, 2013Publication date: October 10, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Yoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Hiroshi KIJIMA
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Publication number: 20130258689Abstract: 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: ApplicationFiled: March 29, 2013Publication date: October 3, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Yoshiyuki TAKAHIRA, Koji TAKAHASHI, Yosuke MAEMURA, Hiroshi KIJIMA, Tomohiro SAKAUE
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Publication number: 20130222540Abstract: 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: ApplicationFiled: November 10, 2011Publication date: August 29, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Hideharu Tajima, Hiroshi Kijima
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Publication number: 20130027964Abstract: 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: ApplicationFiled: July 20, 2012Publication date: January 31, 2013Applicant: Sharp Kabushiki KaishaInventors: Kensei TOYOTA, Hiroshi Kijima, Koji Takahashi
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Publication number: 20130003400Abstract: 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: ApplicationFiled: June 4, 2012Publication date: January 3, 2013Applicant: Sharp Kabushiki KaishaInventors: Hiroshi KIJIMA, Kensei Toyota, Koji Takahashi
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Patent number: 5223350Abstract: 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: GrantFiled: March 15, 1990Date of Patent: June 29, 1993Assignee: Toshiba Tungaloy Co., Ltd.Inventors: Masaki Kobayashi, Tomoyuki Oshita, Hiroshi Kijima