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).

  • Patent number: 9851063
    Abstract: 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: Grant
    Filed: June 24, 2015
    Date of Patent: December 26, 2017
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Kazuhisa Sakashita, Yuichi Yamamoto, Shingo Kato
  • Patent number: 9784424
    Abstract: 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: Grant
    Filed: March 17, 2014
    Date of Patent: October 10, 2017
    Assignees: KOITO MANUFACTURING CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhisa Sakashita, Yuji Noritake
  • Patent number: 9494290
    Abstract: 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: Grant
    Filed: April 10, 2012
    Date of Patent: November 15, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Kazuhisa Sakashita
  • Patent number: 9488328
    Abstract: 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: Grant
    Filed: October 6, 2014
    Date of Patent: November 8, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Kazuhisa Sakashita
  • Publication number: 20160053957
    Abstract: 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: Application
    Filed: March 17, 2014
    Publication date: February 25, 2016
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KOITO MANUFACTURING CO., LTD.
    Inventors: Kazuhisa SAKASHITA, Yuji NORITAKE
  • Publication number: 20160003437
    Abstract: 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: Application
    Filed: June 24, 2015
    Publication date: January 7, 2016
    Inventors: Kazuhisa Sakashita, Yuichi Yamamoto, Shingo Kato
  • Patent number: 9039261
    Abstract: 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: Grant
    Filed: April 4, 2013
    Date of Patent: May 26, 2015
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Hideko Fujiu, Asami Nakada, Kazuhisa Sakashita, Ryujiro Ikuta, Kazunori Natsume
  • Publication number: 20150103549
    Abstract: 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: Application
    Filed: October 6, 2014
    Publication date: April 16, 2015
    Inventor: Kazuhisa Sakashita
  • Publication number: 20130272009
    Abstract: 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: Application
    Filed: April 4, 2013
    Publication date: October 17, 2013
    Applicant: Koito Manufacturing Co., Ltd.
    Inventors: Hideko FUJIU, Asami NAKADA, Kazuhisa SAKASHITA, Ryujiro IKUTA, Kazunori NATSUME
  • Publication number: 20120262936
    Abstract: 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: Application
    Filed: April 10, 2012
    Publication date: October 18, 2012
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Kazuhisa Sakashita