Patents by Inventor Kazuya Motohashi

Kazuya Motohashi 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: 11933466
    Abstract: 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: Grant
    Filed: January 26, 2023
    Date of Patent: March 19, 2024
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Kazuya Motohashi
  • Publication number: 20230272895
    Abstract: A vehicle lamp includes a clearance lamp (330) and an illumination unit (400) for an active sensor. The illumination unit (400) includes a near-infrared light source (410) and a photoconductor (420). The photoconductor (420) receives emitted light from the near-infrared light source (410) and emits illumination light having a predetermined light distribution from an emission surface (422). The photoconductor (420) is disposed such that a rear surface (424) thereof faces a light emitting surface of the clearance lamp (330), and emits, from the emission surface (422), emitted light from the clearance lamp (330) which is received at the rear surface (424).
    Type: Application
    Filed: July 6, 2021
    Publication date: August 31, 2023
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Shota YONEMARU, Kazuya MOTOHASHI, Tomoaki HARADA
  • Publication number: 20230167960
    Abstract: 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: Application
    Filed: January 26, 2023
    Publication date: June 1, 2023
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Kazuya Motohashi
  • Patent number: 11346518
    Abstract: A headlight (1) includes a lamp unit (20) including: light sources (52R,52G,52B) that emit laser light; and phase modulation elements (54R,54G,54B) that diffract the laser light emitted from the light sources (52R,52G,52B) with a phase modulation pattern that is changeable, and emit light of a light distribution pattern based on the phase modulation pattern. The lamp unit (20) adjusts a total luminous flux amount of light emitted from the lamp unit (20) according to the light distribution pattern.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: May 31, 2022
    Assignee: KOITO MANUFACIURING CO., LTD.
    Inventors: Masanori Kito, Kazuya Motohashi
  • Publication number: 20210301996
    Abstract: A headlight (1) includes a lamp unit (20) including: light sources (52R,52G,52B) that emit laser light; and phase modulation elements (54R,54G,54B) that diffract the laser light emitted from the light sources (52R,52G,52B) with a phase modulation pattern that is changeable, and emit light of a light distribution pattern based on the phase modulation pattern. The lamp unit (20) adjusts a total luminous flux amount of light emitted from the lamp unit (20) according to the light distribution pattern.
    Type: Application
    Filed: August 1, 2019
    Publication date: September 30, 2021
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventors: Masanori KITO, Kazuya MOTOHASHI
  • Patent number: 10753563
    Abstract: A vehicle lamp includes a light source, and a projection lens which is configured to project light emitted from the light source. The projection lens includes two or more resin lenses and one or more glass lenses, and a refractive power ratio R (=Pr/Pt) of a total refractive power Pr of the resin lenses to a refractive power Pt of the entire projection lens satisfies a relationship of R<?.
    Type: Grant
    Filed: February 19, 2019
    Date of Patent: August 25, 2020
    Assignee: KOITO MANUFACTURING CO., LTD.
    Inventor: Kazuya Motohashi
  • Patent number: 10655812
    Abstract: Disclosed is a vehicle lamp including: a light source; and a projection lens that projects light emitted from the light source. The projection lens is constituted by a triplet lens including a first lens having a positive refractive power, a second lens having a negative refractive power, and a third lens having a positive refractive power, and a first inter-lens distance (t1) between the first lens and the second lens, a second inter-lens distance (t2) between the second lens and the third lens, and a total lens thickness (T) of the projection lens are in a relationship that satisfies 0.03<t1/T<0.1 and 0.03<t2/T<0.1.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: May 19, 2020
    Assignee: Koito Manufacturing Co., Ltd.
    Inventor: Kazuya Motohashi
  • Patent number: 10641457
    Abstract: A headlight includes light sources, and phase modulation elements that diffract lights incident from the light sources with changeable phase modulation patterns. The lights diffracted by the phase modulation elements are emitted with a low beam light distribution pattern that is a predetermined light distribution pattern based on the phase modulation patterns. A projection region on which zeroth order lights, that are emitted from the phase modulation elements without being diffracted by the phase modulation elements, among the lights incident on the phase modulation elements, are projected is located within a range where a driver's view of a vehicle is obstructed by the vehicle.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: May 5, 2020
    Assignee: Koito Manufacturing Co., Ltd.
    Inventors: Masanori Kito, Kazuya Motohashi
  • Publication number: 20190376659
    Abstract: A headlight includes light sources, and phase modulation elements that diffract lights incident from the light sources with changeable phase modulation patterns. The lights diffracted by the phase modulation elements are emitted with a low beam light distribution pattern that is a predetermined light distribution pattern based on the phase modulation patterns. A projection region on which zeroth order lights, that are emitted from the phase modulation elements without being diffracted by the phase modulation elements, among the lights incident on the phase modulation elements, are projected is located within a range where a driver's view of a vehicle is obstructed by the vehicle.
    Type: Application
    Filed: June 3, 2019
    Publication date: December 12, 2019
    Inventors: Masanori Kito, Kazuya Motohashi
  • Publication number: 20190257492
    Abstract: A vehicle lamp includes a light source, and a projection lens which is configured to project light emitted from the light source. The projection lens includes two or more resin lenses and one or more glass lenses, and a refractive power ratio R (=Pr/Pt) of a total refractive power Pr of the resin lenses to a refractive power Pt of the entire projection lens satisfies a relationship of R<1/3.
    Type: Application
    Filed: February 19, 2019
    Publication date: August 22, 2019
    Applicant: KOITO MANUFACTURING CO., LTD.
    Inventor: Kazuya MOTOHASHI
  • Publication number: 20190086051
    Abstract: Disclosed is a vehicle lamp including: a light source; and a projection lens that projects light emitted from the light source. The projection lens is constituted by a triplet lens including a first lens having a positive refractive power, a second lens having a negative refractive power, and a third lens having a positive refractive power, and a first inter-lens distance (t1) between the first lens and the second lens, a second inter-lens distance (t2) between the second lens and the third lens, and a total lens thickness (T) of the projection lens are in a relationship that satisfies 0.03<t1/T<0.1 and 0.03<t2/T<0.1.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 21, 2019
    Inventor: Kazuya Motohashi