Patents by Inventor Hiroya Koizumi

Hiroya Koizumi 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: 10072813
    Abstract: A vehicular lamp includes a light emitter, a first light guide, and a second light guide. The first light guide has a first incident surface, a first light guiding portion that guides the entering light, a first light emission surface that emits light guided by the first light guiding portion, and a first reflecting surface that reflects the light guided by the first light guiding portion in a direction toward the second light guide. The second light guide has a second light emission surface that emits light that enters the second light guide after being reflected by the first reflecting surface, and a second reflecting surface that reflects the light that enters the second light guide after being reflected by the first reflecting surface toward the second light emission surface.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: September 11, 2018
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Hiroya Koizumi, Kenichi Motomura, Yasuo Teranishi, Hajime Takeda
  • Patent number: 9862301
    Abstract: A vehicular rear panel with a new configuration is provided. The vehicular rear panel according to an aspect of the present disclosure is made of a resin material and disposed on a rear vehicle body part. The vehicular rear panel includes a light guiding unit configured to guide light from the light source along an extending direction of the vehicular rear panel and a light emitting unit configured to emit light in the light guiding unit to a rear side of a vehicle.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: January 9, 2018
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Kenji Yamada, Masaaki Nakabayashi, Koji Uchino, Manabu Maeda, Noriaki Ito, Norimasa Yamamoto, Asami Nakada, Yuji Sakurai, Hiroya Koizumi, Tsukasa Tokida, Takao Muramatsu, Tomoaki Otani, Motohiro Komatsu, Akihiro Matsumoto, Takashi Terayama, Hiroki Ishibashi
  • Patent number: 9669754
    Abstract: Provided is a turn signal lamp including a light source, a light guide, and a camera having an image capture device, which are installed within a lamp chamber formed by a lamp body and an outer cover. At least a portion of the light guide is formed in an area that extends from the camera in a direction following a vehicle surface.
    Type: Grant
    Filed: December 29, 2015
    Date of Patent: June 6, 2017
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Naoki Tatara, Toshihiro Okamura, Kenji Nobuhara, Hiroya Koizumi, Kazuyuki Ishikawa
  • Publication number: 20160207444
    Abstract: Provided is a turn signal lamp including a light source, a light guide, and a camera having an image capture device, which are installed within a lamp chamber formed by a lamp body and an outer cover. At least a portion of the light guide is formed in an area that extends from the camera in a direction following a vehicle surface.
    Type: Application
    Filed: December 29, 2015
    Publication date: July 21, 2016
    Inventors: Naoki Tatara, Toshihiro Okamura, Kenji Nobuhara, Hiroya Koizumi, Kazuyuki Ishikawa
  • Patent number: 9341336
    Abstract: A vehicle headlamp has a first light source disposed on a first optical axis that extends in a front-to-rear direction of a vehicle, a first lens that projects light emitted from the first light source to a front of the vehicle, a second lens having a rear focal point on a second optical axis that is parallel to the first optical axis and disposed adjacent to the first lens, a second light source disposed on the second optical axis rearwards of the first light source, a reflector that reflects light emitted from the second light source towards the rear focal point of the second lens, and a sub-reflector disposed such that the sub-reflector does not interfere with an optical path which extends from the reflector to the second lens and that causes part of light emitted from the first light source to be incident on the second lens.
    Type: Grant
    Filed: July 3, 2012
    Date of Patent: May 17, 2016
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Hiroya Koizumi
  • Publication number: 20150321599
    Abstract: A vehicular rear panel with a new configuration is provided. The vehicular rear panel according to an aspect of the present disclosure is made of a resin material and disposed on a rear vehicle body part. The vehicular rear panel includes a light guiding unit configured to guide light from the light source along an extending direction of the vehicular rear panel and a light emitting unit configured to emit light in the light guiding unit to a rear side of a vehicle.
    Type: Application
    Filed: July 22, 2015
    Publication date: November 12, 2015
    Inventors: Kenji YAMADA, Masaaki NAKABAYASHI, Koji UCHINO, Manabu MAEDA, Noriaki ITO, Norimasa YAMAMOTO, Asami NAKADA, Yuji SAKURAI, Hiroya KOIZUMI, Tsukasa TOKIDA, Takao MURAMATSU, Tomoaki OTANI, Motohiro KOMATSU, Akihiro MATSUMOTO, Takashi TERAYAMA, Hiroki ISHIBASHI
  • Publication number: 20150277027
    Abstract: A vehicular lamp includes a light emitter, a first light guide, and a second light guide. The first light guide has a first incident surface, a first light guiding portion that guides the entering light, a first light emission surface that emits light guided by the first light guiding portion, and a first reflecting surface that reflects the light guided by the first light guiding portion in a direction toward the second light guide. The second light guide has a second light emission surface that emits light that enters the second light guide after being reflected by the first reflecting surface, and a second reflecting surface that reflects the light that enters the second light guide after being reflected by the first reflecting surface toward the second light emission surface.
    Type: Application
    Filed: March 24, 2015
    Publication date: October 1, 2015
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Hiroya KOIZUMI, Kenichi MOTOMURA, Yasuo TERANISHI, Hajime TAKEDA
  • Publication number: 20150109449
    Abstract: A vehicular lamp includes a light source that illuminates a vehicle periphery; a camera that images the vehicle periphery; and a shield structure configured to protect an image from the camera from light of the light source. The shield structure may include a shield ring configured to shield a light receiving portion of the camera from light of the light source; a light guide member that guides the light of the light source in a direction away from the light receiving portion of the camera; a control circuit that operates the camera only at a timing when the light source, flashing in a short cycle, is off; and an image processing circuit that removes a colored light component of the light source from image data of the camera.
    Type: Application
    Filed: December 23, 2014
    Publication date: April 23, 2015
    Inventors: Osamu Endo, Hiroya Koizumi, Naoki Tatara
  • Patent number: 8974101
    Abstract: A vehicular lamp including a lens member between a light-emitting element (22) and a light guiding plate (26) in which emitted light from the light-emitting element (22) is incident on the rear end surface (26a) and then emitted from the front end surface (26b) to the front of the lamp. The lens member (28) allows a part of the emitted light, which travels in a direction close to an optical axis (Ax), to reach the light guiding plate (26) as diffusing light that diffuses in a horizontal plane and further allows the emitted light to reach the light guiding plate (26) as parallel light along the optical axis (Ax) in a vertical plane.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: March 10, 2015
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Hiroya Koizumi
  • Patent number: 8708538
    Abstract: A vehicle lamp includes a plurality of light sources, and a light guide plate configured to emit light to the front side of the lamp from a second surface facing a first surface by internally reflecting light, which is emitted from the respective light sources, by a plurality of reflective elements formed on the first surface after causing the light to enter the light guide plate from a rear end face of the light guide plate. The light guide plate is curved to the first surface and gradually becomes thinner toward the front side. The reflective elements are disposed at a predetermined interval in a longitudinal direction and extend in a direction crossing the longitudinal direction.
    Type: Grant
    Filed: June 28, 2012
    Date of Patent: April 29, 2014
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Kazunori Natsume, Hiroya Koizumi
  • Publication number: 20140003075
    Abstract: A vehicular rear panel with a new configuration is provided. The vehicular rear panel according to an aspect of the present disclosure is made of a resin material and disposed on a rear vehicle body part. The vehicular rear panel includes a light guiding unit configured to guide light from the light source along an extending direction of the vehicular rear panel and a light emitting unit configured to emit light in the light guiding unit to a rear side of a vehicle.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 2, 2014
    Inventors: Kenji YAMADA, Masaaki NAKABAYASHI, Koji UCHINO, Manabu MAEDA, Noriaki ITO, Norimasa YAMAMOTO, Asami NAKADA, Yuji SAKURAI, Hiroya KOIZUMI, Tsukasa TOKIDA, Takao MURAMATSU, Tomoaki OTANI, Motohiro KOMATSU, Akihiro MATSUMOTO, Takashi TERAYAMA, Hiroki ISHIBASHI
  • Patent number: 8591083
    Abstract: A vehicular lamp includes: a light-emitting element arranged face forward; and a translucent member arranged to cover the light-emitting element from its front side. The member has a horizontally oblong shape in a front view, and includes: a direct light control portion located near the optical axis and directly emitting light forward from a front surface of the member; reflected light control portions located both sides of the direct light control portion and internally reflecting the entered light on a rear surface of the member to form substantially parallel light directed forward and emitting the light forward from the front surface; and a curved-surface light incident area formed on the rear surface to allow light from the light-emitting element to enter as substantially parallel light with respect to a cross section parallel to the axis and a longitudinal direction of the member in the direction perpendicular to the cross section.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: November 26, 2013
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Hiroya Koizumi, Kazunori Natsume
  • Patent number: 8485704
    Abstract: A lamp unit includes at least one light source that emits light in a predetermined direction, and a light guide body including at least one incident surface where light emitted from the light source enters, a first emission surface that emits light entering from the incident surface in a horizontal direction, and a plurality of second emission surfaces that emits light entering the incident surface in a horizontal direction and emits light entering the incident surface to the upper side of the horizontal direction. The second emission surfaces are formed above the first emission surface at different positions in an up-down direction, and are positioned on the back side of the first emission surface so as to be spaced apart from one another in the horizontal direction.
    Type: Grant
    Filed: September 20, 2010
    Date of Patent: July 16, 2013
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Hiroya Koizumi, Asami Nakada, Kazunori Natsume
  • Publication number: 20130021815
    Abstract: A vehicular lamp including a lens member between a light-emitting element (22) and a light guiding plate (26) in which emitted light from the light-emitting element(22) is incident on the rear end surface (26a) and then emitted from the front end surface (26b) to the front of the lamp. The lens member (28) allows a part of the emitted light, which travels in a direction close to an optical axis (Ax), to reach the light guiding plate (26) as diffusing light that diffuses in a horizontal plane and further allows the emitted light to reach the light guiding plate (26) as parallel light along the optical axis (Ax) in a vertical plane.
    Type: Application
    Filed: July 11, 2012
    Publication date: January 24, 2013
    Applicant: Koito Manufacturing Co., Ltd.
    Inventor: Hiroya Koizumi
  • Publication number: 20130010488
    Abstract: A vehicle headlamp has a first light source disposed on a first optical axis that extends in a front-to-rear direction of a vehicle, a first lens that projects light emitted from the first light source to a front of the vehicle, a second lens having a rear focal point on a second optical axis that is parallel to the first optical axis and disposed adjacent to the first lens, a second light source disposed on the second optical axis rearwards of the first light source, a reflector that reflects light emitted from the second light source towards the rear focal point of the second lens, and a sub-reflector disposed such that the sub-reflector does not interfere with an optical path which extends from the reflector to the second lens and that causes part of light emitted from the first light source to be incident on the second lens.
    Type: Application
    Filed: July 3, 2012
    Publication date: January 10, 2013
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Hiroya Koizumi
  • Publication number: 20130010486
    Abstract: A vehicle lamp includes a plurality of light sources, and a light guide plate configured to emit light to the front side of the lamp from a second surface facing a first surface by internally reflecting light, which is emitted from the respective light sources, by a plurality of reflective elements formed on the first surface after causing the light to enter the light guide plate from a rear end face of the light guide plate. The light guide plate is curved to the first surface and gradually becomes thinner toward the front side. The reflective elements are disposed at a predetermined interval in a longitudinal direction and extend in a direction crossing the longitudinal direction.
    Type: Application
    Filed: June 28, 2012
    Publication date: January 10, 2013
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Kazunori Natsume, Hiroya Koizumi
  • Patent number: 8292455
    Abstract: A vehicular lamp including, in a lamp chamber formed by a lamp body having a front opening and a transparent front cover attached to the front opening, a semiconductor light-emitting element; and an inner lens positioned forward of the semiconductor light-emitting element. The inner lens includes a first light control portion for diffusing light from the semiconductor light-emitting element in a horizontal direction; and second light control portions respectively positioned on left and right sides of the first light control portion, each of which have a reflective surface for reflecting the light from the semiconductor light-emitting element in a predetermined direction.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: October 23, 2012
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Hiroya Koizumi
  • Patent number: 8292480
    Abstract: A lamp is provided. The lamp includes a lamp housing; light emitting diodes (LEDs); a main reflector disposed so as to oppose to the LEDs for reflecting light emitted from the LEDs towards a front side of the lamp; a sub-reflector which is interposed between the LEDs and the main reflector, and which reflects and diffuses the light emitted from the LEDs towards the main reflector; an LED element assembly which extends in parallel with the sub-reflector and comprises a plurality of flat portions, each flat portion corresponding to one of the plurality of LEDs and on which the corresponding LED is mounted, adjacent ones of the flat portions being coupled together by at least one step portion; and a center portion which covers the LED element assembly and the LEDs such that the LEDs are not exposed to the front side of the lamp.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: October 23, 2012
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Hiroya Koizumi, Miki Mochizuki
  • Patent number: 8292479
    Abstract: A vehicular infrared irradiation lamp includes an infrared light-emitting element for projecting infrared light; a visible light-emitting element that emits visible light; and a transparent member provided at least partially adjacent to a light-emitting portion of the infrared light-emitting element. The transparent member radiates visible light received from the visible light-emitting element in a radiation direction of infrared light.
    Type: Grant
    Filed: September 8, 2009
    Date of Patent: October 23, 2012
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Kiyoshi Sazuka, Osamu Masuda, Hiroya Koizumi, Takatomo Fujiyoshi
  • Publication number: 20120250343
    Abstract: A vehicular lamp including a plurality of first semiconductor light emitting elements and a plurality of first light guide portions respectively corresponding to the first semiconductor light emitting elements, so that first emission light emitted from the first semiconductor light emitting elements enters the first light guide portions. Second emission light emitted from the first semiconductor light emitting elements but does not enter the first light guide portions is reflected in a radiation direction of the lamp by respective segmented reflecting portions. The first light guide portions are provided spacedly in a first direction that intersects the radiation direction and configured such that the first emission light entering therein is guided in the radiation direction. The segmented reflecting portions are configured such that at least a portion of the reflected second emission light passes therethrough and radiates from an area between the plurality of first light guide portions.
    Type: Application
    Filed: March 26, 2012
    Publication date: October 4, 2012
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Hiroya KOIZUMI