Patents by Inventor Kazuhisa Sakashita
Kazuhisa Sakashita 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: 9851063Abstract: Disclosed is a vehicle lamp including a projection lens, and a light source located behind the projection lens so that light emitted from the light source is irradiated forward through the projection lens. The projection lens includes an upright wall surface formed on a peripheral edge thereof, in which the upright wall surface has a greater longitudinal inclination angle than a front surface of the projection lens. A light control member is located behind the projection lens, in which the light control member is configured to suppress light incident on the projection lens from the light source, from being internally reflected by the upright wall surface.Type: GrantFiled: June 24, 2015Date of Patent: December 26, 2017Assignee: Koito Manufacturing Co., Ltd.Inventors: Kazuhisa Sakashita, Yuichi Yamamoto, Shingo Kato
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Patent number: 9784424Abstract: An automotive lamp includes: a first lamp unit that has a first projection lens whose vertical length is longer than the horizontal length thereof when viewed from the front of the lamp and that is used for forming a low beam light distribution pattern; and a second lamp unit that has a second projection lens whose horizontal length is longer than the vertical length thereof when viewed from the front of the lamp and that is used for forming a low beam light distribution pattern. The first lamp unit and the second lamp unit are arranged such that one end of the first projection lens and one end of the second projection lens are adjacent to each other.Type: GrantFiled: March 17, 2014Date of Patent: October 10, 2017Assignees: KOITO MANUFACTURING CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Kazuhisa Sakashita, Yuji Noritake
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Patent number: 9494290Abstract: A vehicle lamp includes a semiconductor light source disposed on an optical axis of the vehicle lamp, a reflector having a plurality of reflective surfaces radially divided about the optical axis and boundary portions formed between two of the reflective surfaces adjacent to each other, and a lens cap that covers the front side of the light source. The lens cap includes a side lens portion that projects laterally emitted light from the light source toward the reflector. The laterally emitted light makes an angle with the optical axis that is at least a predetermined angle. The side lens portion is divided into at least two lens elements in a circumferential direction around the optical axis, and refracts the laterally emitted light so that the laterally emitted light avoids the boundary portions.Type: GrantFiled: April 10, 2012Date of Patent: November 15, 2016Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Kazuhisa Sakashita
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Patent number: 9488328Abstract: There is provided a vehicle lamp including: a light source; a lens disposed on a front side of the light source and having a front surface and a rear surface which is opposite to the front surface and faces the light source, wherein the lens has a convex lens shape, and a curvature of the rear surface is larger than that of the front surface; and a reflector disposed on a rear side of the lens and configured to reflect direct light emitted from the light source toward the lens. The vehicle lamp is configured to form a light distribution pattern by controlling a deflection of the direct light using the lens.Type: GrantFiled: October 6, 2014Date of Patent: November 8, 2016Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Kazuhisa Sakashita
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Publication number: 20160053957Abstract: An automotive lamp includes: a first lamp unit that has a first projection lens whose vertical length is longer than the horizontal length thereof when viewed from the front of the lamp and that is used for forming a low beam light distribution pattern; and a second lamp unit that has a second projection lens whose horizontal length is longer than the vertical length thereof when viewed from the front of the lamp and that is used for forming a low beam light distribution pattern. The first lamp unit and the second lamp unit are arranged such that one end of the first projection lens and one end of the second projection lens are adjacent to each other.Type: ApplicationFiled: March 17, 2014Publication date: February 25, 2016Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KOITO MANUFACTURING CO., LTD.Inventors: Kazuhisa SAKASHITA, Yuji NORITAKE
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Publication number: 20160003437Abstract: Disclosed is a vehicle lamp including a projection lens, and a light source located behind the projection lens so that light emitted from the light source is irradiated forward through the projection lens. The projection lens includes an upright wall surface formed on a peripheral edge thereof, in which the upright wall surface has a greater longitudinal inclination angle than a front surface of the projection lens. A light control member is located behind the projection lens, in which the light control member is configured to suppress light incident on the projection lens from the light source, from being internally reflected by the upright wall surface.Type: ApplicationFiled: June 24, 2015Publication date: January 7, 2016Inventors: Kazuhisa Sakashita, Yuichi Yamamoto, Shingo Kato
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Patent number: 9039261Abstract: The present disclosure provides a vehicular lamp including a low-beam lamp and a daytime running lamp. The low-beam lamp includes a low-beam LED, a low-beam reflector, and a projection lens. The daytime running lamp includes a DRL LED, and a DRL reflector. The DRL LED is disposed at the rear side of the low-beam reflector to emit a light in a direction which intersects with the optical axis of the vehicular lamp. The DRL reflector includes an extension area that extends to at least the outer side of the projection lens when viewed from the front, and reflects the light from the DRL LED in the extension area to emit the light to the front side of the lamp through the outer side of the projection lens.Type: GrantFiled: April 4, 2013Date of Patent: May 26, 2015Assignee: Koito Manufacturing Co., Ltd.Inventors: Hideko Fujiu, Asami Nakada, Kazuhisa Sakashita, Ryujiro Ikuta, Kazunori Natsume
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Publication number: 20150103549Abstract: There is provided a vehicle lamp including: a light source; a lens disposed on a front side of the light source and having a front surface and a rear surface which is opposite to the front surface and faces the light source, wherein the lens has a convex lens shape, and a curvature of the rear surface is larger than that of the front surface; and a reflector disposed on a rear side of the lens and configured to reflect direct light emitted from the light source toward the lens. The vehicle lamp is configured to form a light distribution pattern by controlling a deflection of the direct light using the lens.Type: ApplicationFiled: October 6, 2014Publication date: April 16, 2015Inventor: Kazuhisa Sakashita
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Publication number: 20130272009Abstract: The present disclosure provides a vehicular lamp including a low-beam lamp and a daytime running lamp. The low-beam lamp includes a low-beam LED, a low-beam reflector, and a projection lens. The daytime running lamp includes a DRL LED, and a DRL reflector. The DRL LED is disposed at the rear side of the low-beam reflector to emit a light in a direction which intersects with the optical axis of the vehicular lamp. The DRL reflector includes an extension area that extends to at least the outer side of the projection lens when viewed from the front, and reflects the light from the DRL LED in the extension area to emit the light to the front side of the lamp through the outer side of the projection lens.Type: ApplicationFiled: April 4, 2013Publication date: October 17, 2013Applicant: Koito Manufacturing Co., Ltd.Inventors: Hideko FUJIU, Asami NAKADA, Kazuhisa SAKASHITA, Ryujiro IKUTA, Kazunori NATSUME
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Publication number: 20120262936Abstract: A vehicle lamp includes a semiconductor light source disposed on an optical axis of the vehicle lamp, a reflector having a plurality of reflective surfaces radially divided about the optical axis and boundary portions formed between two of the reflective surfaces adjacent to each other, and a lens cap that covers the front side of the light source. The lens cap includes a side lens portion that projects laterally emitted light from the light source toward the reflector. The laterally emitted light makes an angle with the optical axis that is at least a predetermined angle. The side lens portion is divided into at least two lens elements in a circumferential direction around the optical axis, and refracts the laterally emitted light so that the laterally emitted light avoids the boundary portions.Type: ApplicationFiled: April 10, 2012Publication date: October 18, 2012Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Kazuhisa Sakashita