Patents by Inventor Misako Nakazawa

Misako Nakazawa 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: 10741083
    Abstract: In this invention, letters that can be seen by a pedestrian (101) are drawn on an intersection (103). A mark (MM2) that can be seen by the driver of the host vehicle (C) is drawn on the road (104) between the intersection (103) and the host-vehicle (C). The shapes of the letters (MO4) are corrected in accordance with the positional relationship between the pedestrian (101) and the intersection (103). The shape of the mark (MM2) is corrected in accordance with the positional relationship between the driver of the host-vehicle (C) and the road (104).
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: August 11, 2020
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi Masuda, Michihiko Hayakawa, Yuichi Shibata, Takayuki Yagi, Misako Nakazawa, Toshiaki Tsuda, Hidetada Tanaka, Satoshi Yamamura
  • Patent number: 10670214
    Abstract: A vehicle lamp comprises a first light source group for forward illumination comprising at least one light emitting element, a second light source group for road surface drawing comprising at least one light emitting element provided separately from the at least one light emitting element, a single projection lens through which lights emitted from the first and second light source groups are to pass, and a light shade arranged between the first and second light source groups and the projection lens so that the light from the first light source group and the light from the second light source group do not intersect with each other before entering the projection lens. The projection lens has a first region through which the light from the first light source group is to pass and a second region through which the light from the second light source group is to pass.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: June 2, 2020
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Misako Nakazawa, Takeshi Masuda
  • Patent number: 10336239
    Abstract: A vehicle lamp comprises a first light source group for forward illumination comprising at least one light emitting element, a second light source group for road surface drawing comprising at least one light emitting element provided separately from the at least one light emitting element, a first projection lens through which light emitted from the first light source group is to pass, a second projection lens through which light emitted from the second light source group is to pass, and a light shade arranged between the first and second light source groups and the first and second projection lenses so that the lights from the first and second light source groups do not intersect with each other before entering the first and second projection lenses, respectively. Light distribution control functions of the first and second projection lenses are different from each other.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: July 2, 2019
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Misako Nakazawa, Takeshi Masuda
  • Patent number: 10214134
    Abstract: An illumination device for a vehicle, includes: a detection unit that detects a person; an illumination unit that illuminates light in a direction toward a road surface, an illumination region of the light being alterable; and a control unit that, in a case in which a person is detected by the detection unit and there is a possibility of collision between the detected person and the vehicle, controls the illumination unit so as to illuminate light at a region in a range of view of the detected person that is separated from the person by a pre-specified distance, and so as to move the light in a direction of movement of the detected person while maintaining the separation at the pre-specified distance.
    Type: Grant
    Filed: September 25, 2017
    Date of Patent: February 26, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KOITO MANUFACTURING CO., LTD.
    Inventors: Fumihiko Mouri, Susumu Yamamoto, Takeshi Masuda, Misako Nakazawa
  • Patent number: 10208911
    Abstract: An optical unit includes a light source, a rotary reflector that rotates about an axis of rotation and includes a reflective surface that reflects light emitted by the light source, and a projection lens including an incident surface on which reflected light from the rotary reflector is incident. A shade is provided between the projection lens and the rotary reflector. The shade blocks at least a portion of light that has been incident on an emission surface of the projection lens at an angle within a predetermined range, that has been condensed by the projection lens, and that travels toward the reflective surface of the rotary reflector.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: February 19, 2019
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Hidetada Tanaka, Misako Nakazawa, Satoshi Yamamura
  • Publication number: 20190051185
    Abstract: In this invention, letters that can be seen by a pedestrian (101) are drawn on an intersection (103). A mark (MM2) that can be seen by the driver of the host vehicle (C) is drawn on the road (104) between the intersection (103) and the host-vehicle (C). The shapes of the letters (MO4) are corrected in accordance with the positional relationship between the pedestrian (101) and the intersection (103). The shape of the mark (MM2) is corrected in accordance with the positional relationship between the driver of the host-vehicle (C) and the road (104).
    Type: Application
    Filed: October 16, 2018
    Publication date: February 14, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi MASUDA, Michihiko HAYAKAWA, Yuichi SHIBATA, Takayuki YAGI, Misako NAKAZAWA, Toshiaki TSUDA, Hidetada TANAKA, Satoshi YAMAMURA
  • Patent number: 10134283
    Abstract: In this invention, letters that can be seen by a pedestrian (101) are drawn on an intersection (103). A mark (MM2) that can be seen by the driver of the host vehicle (C) is drawn on the road (104) between the intersection (103) and the host-vehicle (C). The shapes of the letters (MO4) are corrected in accordance with the positional relationship between the pedestrian (101) and the intersection (103). The shape of the mark (MM2) is corrected in accordance with the positional relationship between the driver of the host-vehicle (C) and the road (104).
    Type: Grant
    Filed: September 7, 2015
    Date of Patent: November 20, 2018
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi Masuda, Michihiko Hayakawa, Yuichi Shibata, Takayuki Yagi, Misako Nakazawa, Toshiaki Tsuda, Hidetada Tanaka, Satoshi Yamamura
  • Patent number: 10107469
    Abstract: Disclosed is a vehicular lamp including: a plurality of light emitting elements for drawing a pattern on a road surface which is individually turned ON/OFF; and an optical system which transmits light emitted from the plurality of light emitting elements, the plurality of light emitting elements is disposed along a horizontal direction of a vehicle in parallel, and the optical system projects a light source image of each light emitting element on a road surface as a light distribution pattern which extends in the vertical direction more than in the horizontal direction of the vehicle.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 23, 2018
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Misako Nakazawa, Shinji Kagiyama
  • Patent number: 9951920
    Abstract: A vehicle lamp control system is provided which can not only restrict a semiconductor light emitting element from being deteriorated or damaged by sunlight and but also maintain an illumination efficiency of the semiconductor light emitting element. The vehicle lamp control system includes a projection lens, semiconductor light emitting elements disposed near a rear focal point of the projection lens and emit light towards the projection lens, a movable shade which can move between a shading position where the movable shade cuts off light emitted from the semiconductor light emitting elements to be incident on the projection lens and a non-shading position where the movable shade does not cut off light emitting elements to be incident on the projection lens, and a headlamp control unit which executes a control in which the movable shade is moved to the shading position with the semiconductor light emitting elements left switched off.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: April 24, 2018
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi Masuda, Michihiko Hayakawa, Takao Muramatsu, Misako Nakazawa, Hidetada Tanaka, Yuichi Shibata
  • Publication number: 20180099604
    Abstract: An illumination device for a vehicle, includes: a detection unit that detects a person; an illumination unit that illuminates light in a direction toward a road surface, an illumination region of the light being alterable; and a control unit that, in a case in which a person is detected by the detection unit and there is a possibility of collision between the detected person and the vehicle, controls the illumination unit so as to illuminate light at a region in a range of view of the detected person that is separated from the person by a pre-specified distance, and so as to move the light in a direction of movement of the detected person while maintaining the separation at the pre-specified distance.
    Type: Application
    Filed: September 25, 2017
    Publication date: April 12, 2018
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KOITO MANUFACTURING CO., LTD.
    Inventors: Fumihiko MOURI, Susumu Yamamoto, Takeshi Masuda, Misako Nakazawa
  • Patent number: 9878655
    Abstract: A vehicle lamp includes a first light source that emits light of a first brightness, a second light source that emits light of a second brightness higher than the first brightness, an actuator that changes the direction of light emitted from the first light source and the second light source, and an ADB control device that controls the light output of the second light source and the actuator so as to be associated with each other in accordance with a driving condition of a vehicle.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: January 30, 2018
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Hidetada Tanaka, Yuichi Shibata, Misako Nakazawa, Michihiko Hayakawa
  • Publication number: 20170337821
    Abstract: In this invention, letters that can be seen by a pedestrian (101) are drawn on an intersection (103). A mark (MM2) that can be seen by the driver of the host vehicle (C) is drawn on the road (104) between the intersection (103) and the host-vehicle (C). The shapes of the letters (MO4) are corrected in accordance with the positional relationship between the pedestrian (101) and the intersection (103). The shape of the mark (MM2) is corrected in accordance with the positional relationship between the driver of the host-vehicle (C) and the road (104).
    Type: Application
    Filed: September 7, 2015
    Publication date: November 23, 2017
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi MASUDA, Michihiko HAYAKAWA, Yuichi SHIBATA, Takayuki YAGI, Misako NAKAZAWA, Toshiaki TSUDA, Hidetada TANAKA, Satoshi YAMAMURA
  • Patent number: 9822943
    Abstract: A light deflecting device selectively reflects an incident light to a projection optical system. An irradiation optical system irradiates light to a reflective part of the light deflecting device. The light deflecting device has at least some region in the reflective part, a position of which is switchable between a first reflection position where the light irradiated by the irradiation optical system is reflected toward the projection optical system so as to be effectively used as a portion of a desired light distribution pattern, and a second reflection position where the light irradiated by the irradiation optical system is reflected so as not to be effectively used. The irradiation optical system is disposed at a position shifted to a side which a front face of the reflective part in the first reflection position faces, with reference to a vertical plane including an optical axis of the projection optical system.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: November 21, 2017
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Takayuki Yagi, Misako Nakazawa
  • Publication number: 20170276308
    Abstract: Disclosed is a vehicular lamp including: a plurality of light emitting elements for drawing a pattern on a road surface which is individually turned ON/OFF; and an optical system which transmits light emitted from the plurality of light emitting elements, the plurality of light emitting elements is disposed along a horizontal direction of a vehicle in parallel, and the optical system projects a light source image of each light emitting element on a road surface as a light distribution pattern which extends in the vertical direction more than in the horizontal direction of the vehicle.
    Type: Application
    Filed: March 16, 2017
    Publication date: September 28, 2017
    Inventors: Misako Nakazawa, Shinji Kagiyama
  • Publication number: 20170276310
    Abstract: A vehicle lamp comprises a first light source group for forward illumination comprising at least one light emitting element, a second light source group for road surface drawing comprising at least one light emitting element provided separately from the at least one light emitting element, a first projection lens through which light emitted from the first light source group is to pass, a second projection lens through which light emitted from the second light source group is to pass, and a light shade arranged between the first and second light source groups and the first and second projection lenses so that the lights from the first and second light source groups do not intersect with each other before entering the first and second projection lenses, respectively. Light distribution control functions of the first and second projection lenses are different from each other.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 28, 2017
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Misako Nakazawa, Takeshi Masuda
  • Publication number: 20170276309
    Abstract: A vehicle lamp comprises a first light source group for forward illumination comprising at least one light emitting element, a second light source group for road surface drawing comprising at least one light emitting element provided separately from the at least one light emitting element, a single projection lens through which lights emitted from the first and second light source groups are to pass, and a light shade arranged between the first and second light source groups and the projection lens so that the light from the first light source group and the light from the second light source group do not intersect with each other before entering the projection lens. The projection lens has a first region through which the light from the first light source group is to pass and a second region through which the light from the second light source group is to pass.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 28, 2017
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Misako Nakazawa, Takeshi Masuda
  • Patent number: 9616750
    Abstract: A vehicle display system displays information on a road surface. The vehicle display system includes an other-entity detector, an intersection detector, and a display device. The other-entity detector detects whether or not another entity approaches a vehicle mounted with the vehicle display system. The intersection detector detects whether or not the vehicle approaches an intersection. When the other-entity detector detects that said another entity approaches the vehicle or when the intersection detector detects that the vehicle approaches the intersection, the display device displays a predetermined shape in a predetermined region of a road surface ahead of the vehicle while moving the predetermined shape.
    Type: Grant
    Filed: August 11, 2015
    Date of Patent: April 11, 2017
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Yuichi Shibata, Takayuki Yagi, Hidetada Tanaka, Misako Nakazawa, Michihiko Hayakawa, Takeshi Masuda, Toshiaki Tsuda
  • Publication number: 20170016586
    Abstract: A vehicle lamp includes a first light source, a second light source, and a third light source that emit laser beams; a first lens, a second lens, and a third lens that collimate the respective laser beams emitted by the first light source, the second light source, and the third light source; a converging reflector having a reflective surface whose basis is a paraboloid of revolution, and that reflects the respective laser beams transmitted through the first lens, the second lens, and the third lens; and a phosphor that, receiving laser light reflected by the converging reflector, emits light.
    Type: Application
    Filed: September 28, 2016
    Publication date: January 19, 2017
    Applicant: Koito Manufacturing Co., Ltd.
    Inventors: Toshiaki TSUDA, Noriko SATO, Misako NAKAZAWA
  • Publication number: 20160341388
    Abstract: An optical unit includes a light source, a rotary reflector that rotates about an axis of rotation and includes a reflective surface that reflects light emitted by the light source, and a projection lens including an incident surface on which reflected light from the rotary reflector is incident. A shade is provided between the projection lens and the rotary reflector. The shade blocks at least a portion of light that has been incident on an emission surface of the projection lens at an angle within a predetermined range, that has been condensed by the projection lens, and that travels toward the reflective surface of the rotary reflector.
    Type: Application
    Filed: August 8, 2016
    Publication date: November 24, 2016
    Inventors: Hidetada TANAKA, Misako NAKAZAWA, Satoshi YAMAMURA
  • Publication number: 20160238210
    Abstract: A vehicle lamp control system is provided which can not only restrict a semiconductor light emitting element from being deteriorated or damaged by sunlight and but also maintain an illumination efficiency of the semiconductor light emitting element. The vehicle lamp control system includes a projection lens, semiconductor light emitting elements disposed near a rear focal point of the projection lens and emit light towards the projection lens, a movable shade which can move between a shading position where the movable shade cuts off light emitted from the semiconductor light emitting elements to be incident on the projection lens and a non-shading position where the movable shade does not cut off light emitting elements to be incident on the projection lens, and a headlamp control unit which executes a control in which the movable shade is moved to the shading position with the semiconductor light emitting elements left switched off.
    Type: Application
    Filed: September 25, 2014
    Publication date: August 18, 2016
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takeshi MASUDA, Michihiko HAYAKAWA, Takao MURAMATSU, Misako NAKAZAWA, Hidetada TANAKA, Yuichi SHIBATA