Patents Assigned to Koito Manufacturing Co., Ltd.
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Publication number: 20240134190Abstract: 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: ApplicationFiled: February 9, 2022Publication date: April 25, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Yoichi Ogata
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Patent number: 11964608Abstract: A vehicular lamp system includes a light distribution control device that controls a first lamp unit and a second lamp unit. The light distribution control device forms a combined high-illuminance pattern in a region where no target is present. Meanwhile, the light distribution control device forms a combined shading pattern in regard to a forward vehicle. Furthermore, in regard to a specific target, the light distribution control device controls the first lamp unit so as to form an illuminance fixed pattern, controls the second lamp unit so as to form an illuminance fixed pattern or to form an illuminance adjusted pattern, and forms a combined mid-illuminance pattern by superposing the light distribution patterns that the first lamp unit and the second lamp unit form.Type: GrantFiled: September 27, 2023Date of Patent: April 23, 2024Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Takao Muramatsu, Yuta Maruyama, Yuichi Watano
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Publication number: 20240116428Abstract: A vehicle headlight (1) is equipped with: a light source unit (10) for forming a light distribution pattern which can be changed by light beams emitted from a light source group (130); and a control unit (CO).Type: ApplicationFiled: February 3, 2022Publication date: April 11, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Koji ISHIHARA, Atsushi SUGIMOTO
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Publication number: 20240116427Abstract: A drawing processing unit generates multi-gradation light distribution image data that defines a light distribution. The image processing unit executes multiple software processes sequentially. The drawing processing unit self-diagnoses the presence or absence of an abnormality for each software process. The drawing processing unit transmits first diagnostic data that indicates the self-diagnosis results to the auxiliary processor. Furthermore, the drawing processing unit transmits first feedback data based on data generated for each software process to the auxiliary processor. The auxiliary processor diagnoses the presence or absence of an abnormality in the multiple software processes executed by the drawing processing unit based on the first feedback data.Type: ApplicationFiled: December 20, 2023Publication date: April 11, 2024Applicant: Koito Manufacturing Co., Ltd.Inventors: Masashi KATO, Hirotaka SAWADA
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Patent number: 11952071Abstract: A first lamp unit and a second lamp unit arranged in a given direction are provided, luminous intensity of the second lamp unit in a lamp forward direction is set to be higher than luminous intensity of the first lamp unit in the lamp forward direction, and the first lamp unit and the second lamp unit are turned on sequentially with time difference. Thus, since the first lamp unit and the second lamp unit having different luminous intensity and being arranged in the given direction are turned on sequentially with time difference, it is visually recognized that emitted light flows from one side to the other, and the light is emitted from both the first lamp unit and the second lamp unit that has higher luminous intensity than that of the first lamp unit. Thus, it is possible to ensure high conspicuity in addition to improvement of functionality.Type: GrantFiled: May 27, 2020Date of Patent: April 9, 2024Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Riri Hikosaka, Yuji Ishihara
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Patent number: 11951903Abstract: A driving assistance system includes an illumination apparatus and a controller. The illumination apparatus is configured to draw an avoidance pattern PTN on a road surface such that it indicates a lane in which the driver's vehicle is to travel or a direction in which the driver's vehicle is to travel. Upon detecting, by a sensor or communication, an obstacle in front of the driver's vehicle, the controller instructs the illumination apparatus to draw the avoidance pattern PTN.Type: GrantFiled: November 5, 2021Date of Patent: April 9, 2024Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Atsushi Sugimoto, Naoki Tatara
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Publication number: 20240109479Abstract: A road surface drawing system includes a road surface drawing lamp that is provided in a vehicle and illuminates a road surface with a beam, and a controller that controls the road surface drawing lamp and draws, with a beam BM, a pattern PTN on the road surface ahead of the vehicle. The controller draws a pattern PTN instructing the vehicle to stop if a signal state of an upcoming traffic signal is a red light.Type: ApplicationFiled: December 12, 2023Publication date: April 4, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Naoki TATARA, Kiyotaka MOCHIZUKI
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Publication number: 20240109474Abstract: A light distribution control device, if a first upper limit number N1?the number of near-distance targets T1, controls a lamp to irradiate the near-distance targets with light having illuminance according to attributes of the near-distance targets; if a remaining number M?the number of long-distance targets T2, controls the lamp to irradiate the long-distance targets with light having illuminance according to attributes of the long-distance targets; if N1<T1, controls the lamp to form a light distribution pattern that does not depend on the near-distance targets and the long-distance targets; and, if M<T2, controls the lamp to form a light distribution pattern that does not depend on the long-distance targets.Type: ApplicationFiled: December 14, 2023Publication date: April 4, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Hirohiko OSHIO, Yuichi WATANO, Takashi TERAYAMA, Hikaru NAGAI
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Publication number: 20240110685Abstract: Vehicle headlights are equipped with a right-side lamp, a left-side lamp, and a control unit. A right-side light distribution pattern and a left-side light distribution pattern include an overlapping area and a non-overlapping area. In a case where the steering angle is greater than the prescribed angle, the control unit controls power supplied to light-emitting parts of the right-side lamp and power supplied to light-emitting parts of the left-side lamp such that: a first area of a first light distribution pattern is located in the non-overlapping area; a second area of a second light distribution pattern is located in the overlapping area; and a first intensity of the light in the first area becomes greater than the sum of a second intensity of the light in the second area and a third intensity of the light in the area overlapping the second area within the first light distribution pattern.Type: ApplicationFiled: February 3, 2022Publication date: April 4, 2024Applicant: KOITO MANUFACTURING CO.,LTD.Inventor: Tomoyuki OHNO
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Publication number: 20240109473Abstract: A left vehicle lamp (2L) includes a lamp housing (14), a lamp cover (12) that covers an opening of the lamp housing (14), an illumination unit (3, 4) that is disposed inside a lamp chamber (S) formed by the lamp housing (14) and the lamp power bar (12), a radar (5) configured to acquire a radar data indicating a surrounding environment of a vehicle by emitting radio waves toward the outside of the vehicle, and a light guide member (6) that is disposed in a manner of facing the radar (5) so as to hide at least a part of the radar (5) from the outside of the vehicle and is configured to transmit radio waves emitted from the radar (5). The radar (5) is disposed outside the housing (S). The light guide member (6) is configured to emit light toward the outside of the vehicle.Type: ApplicationFiled: December 1, 2023Publication date: April 4, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Yoshihiro Katsurada, Yuta Maruyama, Osamu Kuboyama, Akihito Horikawa, Kosei Kikuchi, Yuichi Watano
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Publication number: 20240110686Abstract: A right-side vehicle lamp (2R) comprises: a lamp housing (14); a lamp cover (12) that covers an opening in the lamp housing (14); a low-beam illumination unit (3) positioned inside a lamp chamber (S) formed from the lamp housing (14) and the lamp cover (12); radar (5) configured so as to emit radio waves outside the vehicle, thereby acquiring radar data; and a shielding part (6) positioned so as to face the radar (5) so as to shield the radar (5) from the outside of the vehicle, the shielding part (6) being configured so as to transmit the radio waves emitted from the radar (5). The shielding part (6) is formed integrally with the lamp cover (12). The boundary (B) between the shielding part (6) and the lamp cover (12) is positioned outside the field of view (Fv) of the radar (5).Type: ApplicationFiled: December 6, 2023Publication date: April 4, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Yuta Maruyama, Yoshihiro Katsurada, Yuichi Watano, Osamu Kuboyama
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Publication number: 20240113911Abstract: A local ECU includes a processor adaptive to execute a software program. An electronic device does not include a processor, and operates under control by the local ECU. The electronic device is structured to store control information required for the local ECU to control the electronic device itself, and to transmit the control information to the local ECU. The local ECU is structured to receive the control information from the electronic device, and to control the electronic device based on the control information.Type: ApplicationFiled: December 14, 2023Publication date: April 4, 2024Applicant: Koito Manufacturing Co., Ltd.Inventor: Yuta MARUYAMA
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Patent number: 11945362Abstract: An aircraft lamp includes: a lamp outer housing configured by a lamp housing having an opening and a cover attached to the lamp housing in a state where the opening is closed, wherein an internal space is formed in the lamp housing as a first arrangement space; and a lamp unit that includes a light source module provided with a light source, an attaching base to which the light source module is attached, and a power receiving connector attached to the attaching base to supply power to the light source, wherein the lamp unit is configured to be detachable with respect to the lamp housing. The lamp housing includes an insertion hole communicating with the first arrangement space. The lamp housing is provided with an arrangement case portion having a second arrangement space opened on an outer surface side of the lamp housing.Type: GrantFiled: July 9, 2020Date of Patent: April 2, 2024Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Kazuyoshi Nakamura, Takashi Yoda, Masaru Ishikiriyama
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Publication number: 20240102627Abstract: A road surface rendering device for rendering a road surface by illuminating an illumination region extending along a direction away from the road surface rendering device with light. The illumination region is divided into three regions of a left region, a central region, and a right region in a direction intersecting a longitudinal direction, an illuminance of the central region is largest.Type: ApplicationFiled: January 12, 2022Publication date: March 28, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Yukiko Kitazawa, Masaru Sasaki, Koichi Tanabe, Ken Watanabe, Masanori Kito
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Publication number: 20240101070Abstract: A cleaner system for cleaning a sensor mounted on a vehicle includes a first cleaner unit configured to clean a first sensor, a second cleaner unit configured to clean a second sensor different from the first sensor, and a solenoid valve configured to switch a duct of a cleaning medium supplied from a supply source. The solenoid valve is switchable such that the duct is connected to the first cleaner unit during non-energization, and the duct is connected to the second cleaner unit during energization, and the first sensor is provided in front of the second sensor in the vehicle.Type: ApplicationFiled: November 19, 2021Publication date: March 28, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventor: Tatsuya INOUE
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Patent number: 11940110Abstract: A vehicle-mounted light source unit (LU) includes a heat sink (80) including a first rib (94L) and a second rib (94R), and a substrate (50) including a first through-hole (51L) and a second through-hole (51R) into which the first rib (94L) and the second rib (94R) are fitted. Each of the first rib (94L) and the second rib (94R) includes an extending portion (94E), and a protruding portion (94P) that protrudes from a part of the extending portion (94E) to a side on which the first rib (94L) and the second rib (94R) approach each other or are away from each other in a left-right direction. Each of the first through-hole (51L) and the second through-hole (51R) includes first facing portions facing both end surfaces of the extending portion (94E) and a second facing portion facing an end surface of the protruding portion (94P).Type: GrantFiled: December 10, 2021Date of Patent: March 26, 2024Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Shuhei Nozue, Ryujiro Ikuta
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Patent number: 11933466Abstract: A vehicular lamp (1) includes a light source unit (20), and a meta-lens (30) in which a plurality of cells (33) including a nanostructure (35) smaller than a longest wavelength of light (L) emitted from the light source unit (20) are arranged, the meta-lens (30) having a main surface (31s) as a meta region through which the light L emitted from the light source unit (20) passes, and the main surface (31s) as the meta region changes a phase distribution of the light (L) passing through the main surface (31s).Type: GrantFiled: January 26, 2023Date of Patent: March 19, 2024Assignee: KOITO MANUFACTURING CO., LTD.Inventor: Kazuya Motohashi
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Patent number: 11932166Abstract: A road surface drawing system includes a road surface drawing lamp that is provided in a vehicle and illuminates a road surface with a beam, and a controller that controls the road surface drawing lamp and draws, with a beam BM, a pattern PTN on the road surface ahead of the vehicle. The controller draws a pattern PTN instructing the vehicle to stop if a signal state of an upcoming traffic signal is a red light.Type: GrantFiled: August 31, 2022Date of Patent: March 19, 2024Assignee: KOITO MANUFACTURING CO., LTD.Inventors: Naoki Tatara, Kiyotaka Mochizuki
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Publication number: 20240083346Abstract: A gating camera divides a field of view in a depth direction into multiple slices, and generates multiple slice images that correspond to the multiple slices. An illumination apparatus emits illumination light. A camera controller controls a light emission timing of the illumination apparatus and an exposure timing of an image sensor so as to generate slice images from a near slice to a farther slice. An arithmetic processing device judges whether a road surface appears for each of the slice images generated in sequence. Processing for a row judged to include a road surface in a given slice is simplified at the time of sensing of a slice farther than the given slice.Type: ApplicationFiled: January 26, 2022Publication date: March 14, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Koji ITABA, Masayuki TAKAHASHI, Daiki KATO, Shun TANEMOTO, Masatoshi SUZUKI, Keita KONDO
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Publication number: 20240067094Abstract: A gating camera divides a field of view in a depth direction into multiple ranges, and generates multiple slice images that correspond to the multiple ranges. A controller is configured to generate an emission control signal and an exposure control signal. An illumination apparatus emits probe light according to the emission control signal during normal imaging. An image sensor performs exposure according to the exposure control signal. A calibration light source emits calibration light to the image sensor according to the emission control signal during calibration. The controller sweeps a time difference between the emission control signal and the exposure control signal, and monitors a change in a pixel value of the image sensor during the calibration.Type: ApplicationFiled: December 17, 2021Publication date: February 29, 2024Applicant: KOITO MANUFACTURING CO., LTD.Inventors: Kenichi HOSHI, Koji ITABA, Daiki KATO