Patents Assigned to Koito Manufacturing Co., Ltd.
  • Publication number: 20240227671
    Abstract: A vehicular lamp apparatus includes: a lamp unit; a controller that controls the lamp unit based on vehicle information received from a vehicle; and an acceleration sensor that provides information indicating vehicle acceleration to the controller. The controller detects whether or not reception of the vehicle information is interrupted and controls the lamp unit based on the vehicle acceleration when interruption in the reception of the vehicle information is detected.
    Type: Application
    Filed: March 26, 2024
    Publication date: July 11, 2024
    Applicant: Koito Manufacturing Co., Ltd.
    Inventors: Yuichi NAKAZAWA, Yuichi WATANO, Yuta MARUYAMA, Takahiro TOTSUKA, Yasushi OHTSUKA
  • Publication number: 20240227664
    Abstract: This display system which is provided in a vehicle comprises: a road surface drawing device that is configured so as to emit a light pattern (L1) toward a road surface outside the vehicle; an HUD that is located inside the vehicle and configured so as to display HUD information to an occupant of the vehicle such that the HUD information is overlaid on real space outside the vehicle; and a display control unit that is configured so as to control the road surface drawing device. The display control unit is configured so as to control the emission of the light pattern (L1) in accordance with an input operation by the occupant in an HUD display area (D1) where the HUD information can be displayed.
    Type: Application
    Filed: March 25, 2024
    Publication date: July 11, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Toshihiko Kurebayashi, Masaaki Nakabayashi, Naoki Takii, Misako Kamiya, Yoshiaki Fushimi
  • Publication number: 20240231087
    Abstract: An image projection apparatus includes a first image irradiation unit, a light guide plate unit, and a diffraction grating unit. The first image irradiation unit is configured to emit first light. The light guide plate unit includes a first light incidence unit, an optical waveguide unit, and a first light emission unit. The first light incidence unit on which the first light is incident. The optical waveguide unit is configured to guide a part of the first light as guided light while totally reflecting the part of the first light. The first light emission unit is configured to emit a part of the guided light in a viewpoint direction. The diffraction grating unit is provided in the first light incidence unit. The first light emission unit includes a beam splitter provided in the optical waveguide unit and a retroreflection unit provided at an end of the optical waveguide unit.
    Type: Application
    Filed: February 9, 2022
    Publication date: July 11, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Yoichi Ogata
  • Patent number: 12032162
    Abstract: An image projector is provided for which assembly work and optical axis adjustment are easy while visibility at both sides of an image is secured. This image projector includes a lighting substrate, a lens part that adjusts an optical axis of emitted light from light-emitting elements, and an image display part which displays an image on a display surface and through which the emitted light is transmitted. The display surface of the image display part has a central region and side regions located on both sides. In the lens part, a first lens region corresponding to the central region and second lens regions corresponding to the side regions are integrally formed. Radiation directions of light having passed through the second lens regions are more inclined toward laterally outer sides than a radiation direction of light having passed through the first lens region.
    Type: Grant
    Filed: September 6, 2021
    Date of Patent: July 9, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Kohei Mochizuki
  • Publication number: 20240210531
    Abstract: The gating camera 20 divides the field of view in the depth-direction into multiple ranges RNG1 through RNGN, and generates multiple slice images IMGs1 through IMGsN that correspond to the multiple ranges RNG1 through RNGN. The illumination apparatus 22 is capable of controlling the light emission timing, and emits probe light L1 in synchronization with the light emission timing signal S1. The image sensor 24 is capable of exposure in synchronization with the exposure timing signal S2. The camera controller 26 controls the light emission timing of the illumination apparatus 22 and the image capture timing of the image sensor 24 for each range, and controls the effective image capture range of the image sensor 24 according to the vehicle speed.
    Type: Application
    Filed: April 21, 2022
    Publication date: June 27, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Shun TANEMOTO, Masayuki TAKAHASHI, Koji ITABA, Daiki KATO, Masatoshi SUZUKI
  • Patent number: 12017582
    Abstract: There is provided a vehicular illumination device to be disposed on a ceiling portion in a vehicle passenger compartment includes: a left-row light source unit in which three or more light sources arranged side by side in a front-rear direction of the vehicle is disposed on a left side of a center in a width direction of the vehicle: and a right-row light source unit in which three or more light sources arranged in the front-rear direction of the vehicle is disposed on a right side of the center in the width direction of the vehicle. Optical paths of the light sources are set to be placed in a state where a light irradiation region of the left-row light source unit and a light irradiation region of the right-row light source unit partially overlap with each other on a floor surface in the vehicle passenger compartment.
    Type: Grant
    Filed: August 29, 2022
    Date of Patent: June 25, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Shuichi Ishibashi
  • Patent number: 12017580
    Abstract: A linear regulator supplies a first drive current to a first light source in a first period in which the first light source is turned on and a second light source is not turned on, and in a second period in which the first light source and the second light source are turned on, and stops the supply of the first drive current in a third period in which the first light source and the second light source are turned off. A switching regulator supplies a second drive current to the second light source in the second period, and stops the supply of the second drive current in the third period.
    Type: Grant
    Filed: January 13, 2021
    Date of Patent: June 25, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Shinji Ohta, Susumu Ogo
  • Patent number: 12017576
    Abstract: A lamp system includes a variable light distribution lamp. The variable light distribution lamp 110 irradiates a beam having a variable light intensity distribution to a road surface. A light distribution controller controls the variable light distribution lamp. In response to the start of a predetermined event, the light distribution controller draws a pattern that corresponds to the event. In response to the end of the event, the light distribution controller extinguishes the pattern.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: June 25, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Kiyotaka Mochizuki, Naoki Tatara, Norihiko Kobayashi
  • Publication number: 20240198893
    Abstract: A lighting control apparatus is configured to be applied to a vehicle lamp. The lighting control apparatus includes a first switching converter, a substrate on which the first switching converter is provided, and a first cover. The first switching converter includes a switching element, a coil, and a first output capacitor and is configured to generate a first drive voltage corresponding to a first light source of the vehicle lamp based on a power source voltage. The first cover is formed of a conductive material and covers at least a part of components of the first switching converter in one surface of the substrate. The substrate includes a first conduction part and a second conduction part which are in conductive contact with the first cover. The first switching converter is provided between the first conduction part and the second conduction part. The first output capacitor is provided in a vicinity of one part of the first conduction part and the second conduction part.
    Type: Application
    Filed: April 11, 2022
    Publication date: June 20, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Yuichi Nakazawa, Ryosuke Utsumi
  • Patent number: 12013093
    Abstract: A light unit is configured in such a manner that a light guide is placed between a light source and a projection lens, and includes a first exit surface for emitting light for a low-beam light distribution pattern and a second exit surface for emitting light for an additional light distribution pattern that is added to form a high-beam light distribution pattern. The light guide is configured to be provided with a mirror surface portion on a connection surface extending toward the back of the unit from a lower edge of the first exit surface to an upper edge of the second exit surface. As a result, light from a light-emitting element that has been emitted through the second exit surface and reached the connection surface is reflected by the mirror surface portion to be used as the light for forming the additional light distribution pattern.
    Type: Grant
    Filed: December 2, 2021
    Date of Patent: June 18, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Teppei Muramatsu, Yuta Ugajin
  • Patent number: 12012078
    Abstract: A vehicle cleaner includes a cylinder, a piston, a nozzle holder, a nozzle and a nozzle cover. The nozzle cover includes a cover portion that closes an opening formed in a part of a vehicle body panel of a vehicle, and an engaging portion that protrudes from the cover portion toward the piston and engages with the nozzle holder. The engaging portion is provided with a concave portion for lance engagement on one surface, and an abutting rib on the other surface of the engaging portion opposite to the one surface. The nozzle holder is provided with a first convex portion that engages with the concave portion on one surface, and a first abutted rib against which the abutting rib abuts on the other surface of the nozzle holder opposite to the one surface.
    Type: Grant
    Filed: January 7, 2020
    Date of Patent: June 18, 2024
    Assignees: KOITO MANUFACTURING CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Atsushi Usami, Masaru Sakai, Yasuhiro Ichikawa
  • Patent number: 12007091
    Abstract: A road surface drawing apparatus includes: a plurality of light sources that is capable of individually emitting a light; a mask having a plurality of light-transmitting windows, each light-transmitting window arranged to receive the light from a corresponding light source of the plurality of light sources; a partition that partitions a space between the plurality of light sources and the mask into a plurality of subspaces, each subspace allocated for each light-transmitting window and the corresponding light source; and a common projection lens arranged to project the light transmitted through each light-transmitting window from the corresponding light source onto a road surface.
    Type: Grant
    Filed: May 2, 2023
    Date of Patent: June 11, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Tatsuki Ito
  • Patent number: 12005832
    Abstract: A vehicle display system provided to a vehicle, includes a first display device, a second display device, and a display control unit. The first display device is configured to emit a light pattern toward a road surface outside the vehicle. The second display device is located inside the vehicle and configured to display predetermined information toward a passenger in the vehicle so that the predetermined information is superimposed on a real space outside the vehicle. The display control unit is configured to control the first display device. The display control unit is configured to control emission of the light pattern according to a passenger's input operation on a display area where the predetermined information can be displayed.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: June 11, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Toshihiko Kurebayashi, Masaaki Nakabayashi, Naoki Takii, Misako Kamiya, Yoshiaki Fushimi
  • Publication number: 20240184096
    Abstract: A light reflective member has a mirror surface adapted to reflect light. A deflecting mechanism is configured to oscillate the light reflective member about an oscillation axis extending in a direction along the mirror surface. A first regulating member faces a portion of the light reflective member including the oscillation axis with a gap therebetween in a direction intersecting with the mirror surface, and is configured to regulate displacement of the oscillation axis in the direction intersecting with the mirror surface.
    Type: Application
    Filed: March 9, 2022
    Publication date: June 6, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Hiroshi INOUE
  • Publication number: 20240181999
    Abstract: A cleaner system is mounted on a vehicle including an external sensor configured to acquire information outside the vehicle. The cleaner system includes: a cleaning device configured to clean the external sensor or prevent adhesion of dirt to the external sensor by discharging a cleaning medium to the external sensor; and a cleaner control unit configured to operate the cleaning device at a predetermined cleaning strength when a predetermined operation condition is satisfied. The cleaner control unit further acquires a travel situation of the vehicle, and controls a cleaning strength based on the travel situation.
    Type: Application
    Filed: March 7, 2022
    Publication date: June 6, 2024
    Applicants: KOITO MANUFACTURING CO., LTD., KOITO MANUFACTURING CO., LTD.
    Inventors: Kazuhiro Suzuki, Akinobu Kubota, Syota Yonemaru, Natsuki Iguchi, Yoshiaki Fushimi, Tatsuya Inoue, Masaaki Sato, Toshihisa Hayami
  • Publication number: 20240184125
    Abstract: An image generation device and an image irradiation device equipped with the image generation device are provided, which are capable of improving the position accuracy of an image generation unit and a first mirror, and achieving miniaturization of the first mirror. The image generation device for generating a predetermined image includes: an image generation unit configured to emit light for generating the predetermined image; a first mirror configured to reflect the light; and a bracket for attaching the image generation unit. The first mirror is held by the bracket.
    Type: Application
    Filed: March 11, 2022
    Publication date: June 6, 2024
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Takatomo Fujiyoshi, Masahiro Hori, Kohei Mochizuki, Takashi Ito
  • Publication number: 20240184021
    Abstract: A microlens array includes a plurality of optical systems. Each of the optical systems includes a pair of an incidence-side lens portion and an emission-side lens portion. A hollow portion is provided between an incidence surface of the incidence-side lens portion and an emission surface of the emission-side lens portion. The hollow portion includes a first surface extending to a focus position of the emission-side lens portion, and a second surface extending from the first surface toward the incidence surface. A cut line forming portion is formed by a boundary portion between the first surface and the second surface.
    Type: Application
    Filed: March 16, 2022
    Publication date: June 6, 2024
    Applicants: KOITO MANUFACTURING CO., LTD., KOITO MANUFACTURING CO., LTD.
    Inventors: Ayaka Kazama, Hiroyuki Ishida
  • Patent number: 11999286
    Abstract: A vehicle drawing device draws a sign on a road surface with amber-colored light. When a luminance of the sign is assumed as a road surface drawing luminance, and a luminance in a surrounding environment of a driving vehicle is assumed as a background luminance, the amber-colored light is irradiated such that a luminance contrast calculated by the road surface drawing luminance and the background luminance is 0.2 or more.
    Type: Grant
    Filed: August 11, 2020
    Date of Patent: June 4, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Yuichi Shibata
  • Patent number: 12003839
    Abstract: An illumination apparatus irradiates first reference light having a first intensity distribution and second reference light having a second intensity distribution that has a complementary relation with the first intensity distribution. A photodetector measures reflected light from an object. A processing device executes a first correlation calculation using a first detection intensity based on the output of the photodetector in a state in which the first reference light is irradiated and the second intensity distribution, and executes a second correlation calculation using a second detection intensity based on the output of the photodetector in a state in which the second reference light is irradiated and the second intensity distribution.
    Type: Grant
    Filed: October 20, 2021
    Date of Patent: June 4, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventors: Masato Gomi, Shintaro Sugimoto, Yuta Haruse, Teruaki Torii
  • Patent number: 11999295
    Abstract: A lamp system includes a road surface drawing lamp that illuminates a road surface with a beam BM, and a lamp controlling unit that controls the road surface drawing lamp and draws, with the beam BM, a pattern PTN on the road surface ahead of a vehicle. The lamp controlling unit draws a first pattern before a start of a predetermined event and draws a second pattern at the start of the event. The first pattern includes first information to be presented in advance to a driver to allow the driver to respond to the event, and the second pattern includes second information corresponding to the event.
    Type: Grant
    Filed: August 11, 2022
    Date of Patent: June 4, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Naoki Tatara