Patents by Inventor Yasuhiro Ookubo
Yasuhiro Ookubo 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: 9506616Abstract: A vehicle headlamp is provided with: a reflector having reflecting surfaces made of a parabola-based free curved face; and semiconductor-type light sources having a light emitting chip shaped like a planar rectangle. The reflecting surfaces 2U, 2D are made up of: a first reflecting surface forming a high luminous intensity zone; a second reflecting surface forming a middle luminous intensity zone; and a third reflecting surface forming a low luminous intensity zone. As a result, the vehicle headlamp allows downsizing, weight reduction, and cost reduction. In addition, precision of assembling optical elements can be improved.Type: GrantFiled: November 20, 2013Date of Patent: November 29, 2016Assignee: ICHIKOH INDUSTRIES, LTD.Inventor: Yasuhiro Ookubo
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Publication number: 20140078769Abstract: A vehicle headlamp is provided with: a reflector having reflecting surfaces made of a parabola-based free curved face; and semiconductor-type light sources having a light emitting chip shaped like a planar rectangle. The reflecting surfaces 2U, 2D are made up of a first reflecting surface forming a high luminous intensity zone; a second reflecting surface forming a middle luminous intensity zone; and a third reflecting surface forming a low luminous intensity zone. As a result, the vehicle headlamp allows downsizing, weight reduction, and cost reduction. In addition, precision of assembling optical elements can be improved.Type: ApplicationFiled: November 20, 2013Publication date: March 20, 2014Applicant: ICHIKOH INDUSTRIES, LTD.Inventor: Yasuhiro OOKUBO
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Patent number: 8616741Abstract: A vehicle headlamp is provided with: a reflector having reflecting surfaces made of a parabola-based free curved face; and semiconductor-type light sources having a light emitting chip shaped like a planar rectangle. The reflecting surfaces 2U, 2D are made up of: a first reflecting surface forming a high luminous intensity zone; a second reflecting surface forming a middle luminous intensity zone; and a third reflecting surface forming a low luminous intensity zone. As a result, the vehicle headlamp allows downsizing, weight reduction, and cost reduction. In addition, precision of assembling optical elements can be improved.Type: GrantFiled: October 21, 2009Date of Patent: December 31, 2013Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Ookubo
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Patent number: 8201980Abstract: A vehicle headlamp is provided with: a fixed reflector having reflecting surfaces, a respective one of which is made of a parabola-based free curved face; movable reflectors having reflecting surfaces, a respective one of which is made of a parabola-based free curved face; and semiconductor-type light sources, a respective one of which has a light emitting chip shaped like a planar rectangle. When the movable reflectors are positioned in a first location, a light distribution pattern for low beam is obtained on the reflecting surfaces of the fixed reflector. When the movable reflectors are positioned in a second location, light distribution patterns for high beams are obtained on the reflecting surfaces of the fixed reflector and the movable reflector. As a result, the vehicle headlamp enables downsizing, weight reduction, power saving, and cost reduction.Type: GrantFiled: October 21, 2009Date of Patent: June 19, 2012Assignee: Ichikoh Industries, Ltd.Inventors: Yasuhiro Ookubo, Toshiya Abe
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Patent number: 8123388Abstract: A vehicle headlamp has semiconductor-type light sources and lenses. Emission surfaces of the lenses are made of free curved faces controlled to be curved so that: projection images of light emitting chips of the semiconductor-type light sources, which is emitted from the emission surfaces, are not convexly curved in an upward direction from cutoff lines on a screen light distribution of a light distribution pattern for low beam. As a result, the vehicle headlamp can achieve downsizing, weight reduction, and cost reduction. In addition, the precision of assembling an optical element can be improved.Type: GrantFiled: December 17, 2009Date of Patent: February 28, 2012Assignee: Ichikoh Industries, Ltd.Inventor: Yasuhiro Ookubo
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Patent number: 8042980Abstract: A vehicle headlamp is provided with semiconductor-type light sources, lenses, a reflector, light shading members, prism members, and a switching device. When the light shading members are positioned in a first location by means of the switching device, a light distribution pattern LP for low beam, having one or more cutoff lines, is illuminated. In addition, when the prism members are positioned in the first location by means of the switching device, a light distribution pattern HP for high beam is illuminated. As a result, the vehicle headlamp can achieve downsizing, weight reduction, power saving, and cost reduction.Type: GrantFiled: December 17, 2009Date of Patent: October 25, 2011Assignee: Ichikoh Industries, Ltd.Inventors: Yasuhiro Ookubo, Toshiya Abe
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Publication number: 20100165652Abstract: A vehicle headlamp has semiconductor-type light sources and lenses. Emission surfaces of the lenses are made of free curved faces controlled to be curved so that: projection images of light emitting chips of the semiconductor-type light sources, which is emitted from the emission surfaces, are not convexly curved in an upward direction from cutoff lines on a screen light distribution of a light distribution pattern for low beam. As a result, the vehicle headlamp can achieve downsizing, weight reduction, and cost reduction. In addition, the precision of assembling an optical element can be improved.Type: ApplicationFiled: December 17, 2009Publication date: July 1, 2010Inventor: Yasuhiro OOKUBO
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Publication number: 20100165653Abstract: A vehicle headlamp is provided with semiconductor-type light sources, lenses, a reflector, light shading members, prism members, and a switching device. When the light shading members are positioned in a first location by means of the switching device, a light distribution pattern LP for low beam, having one or more cutoff lines, is illuminated. In addition, when the prism members are positioned in the first location by means of the switching device, a light distribution pattern HP for high beam is illuminated. As a result, the vehicle headlamp can achieve downsizing, weight reduction, power saving, and cost reduction.Type: ApplicationFiled: December 17, 2009Publication date: July 1, 2010Inventors: Yasuhiro Ookubo, Toshiya Abe
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Publication number: 20100110711Abstract: A vehicle headlamp is provided with: a fixed reflector having reflecting surfaces, a respective one of which is made of a parabola-based free curved face; movable reflectors having reflecting surfaces, a respective one of which is made of a parabola-based free curved face; and semiconductor-type light sources, a respective one of which has a light emitting chip shaped like a planar rectangle. When the movable reflectors are positioned in a first location, a light distribution pattern for low beam is obtained on the reflecting surfaces of the fixed reflector. When the movable reflectors are positioned in a second location, light distribution patterns for high beams are obtained on the reflecting surfaces of the fixed reflector and the movable reflector. As a result, the vehicle headlamp enables downsizing, weight reduction, power saving, and cost reduction.Type: ApplicationFiled: October 21, 2009Publication date: May 6, 2010Inventors: Yasuhiro OOKUBO, Toshiya Abe
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Publication number: 20100110714Abstract: A vehicle headlamp is provided with: a reflector having reflecting surfaces made of a parabola-based free curved face; and semiconductor-type light sources having a light emitting chip shaped like a planar rectangle. The reflecting surfaces 2U, 2D are made up of: a first reflecting surface forming a high luminous intensity zone; a second reflecting surface forming a middle luminous intensity zone; and a third reflecting surface forming a low luminous intensity zone. As a result, the vehicle headlamp allows downsizing, weight reduction, and cost reduction. In addition, precision of assembling optical elements can be improved.Type: ApplicationFiled: October 21, 2009Publication date: May 6, 2010Inventor: Yasuhiro OOKUBO