Patents by Inventor Yuki Kuramitsu

Yuki Kuramitsu 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: 10436413
    Abstract: An illumination device includes: an elongated light guide; a first light source; a second light source; and a controller. A first increase beginning time point at which the brightness of the first light source begins to increase from zero is prior to a second increase beginning time point at which the brightness of the second light source begins to increase from zero. A first increase finish time point at which the brightness of the first light source finishes increasing to the first set brightness is simultaneous with or prior to a second increase finish time point at which the brightness of the second light source finishes increasing to the second set brightness. A time from the first increase beginning time point to the second increase finish time point is not more than 0.2 seconds.
    Type: Grant
    Filed: September 12, 2018
    Date of Patent: October 8, 2019
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Renge Asakawa, Yoshiharu Tanaka, Hirotaka Fukui, Yuki Kuramitsu, Taro Isogai
  • Publication number: 20190086053
    Abstract: An illumination device includes: an elongated light guide; a first light source; a second light source; and a controller. A first increase beginning time point at which the brightness of the first light source begins to increase from zero is prior to a second increase beginning time point at which the brightness of the second light source begins to increase from zero. A first increase finish time point at which the brightness of the first light source finishes increasing to the first set brightness is simultaneous with or prior to a second increase finish time point at which the brightness of the second light source finishes increasing to the second set brightness. A time from the first increase beginning time point to the second increase finish time point is not more than 0.2 seconds.
    Type: Application
    Filed: September 12, 2018
    Publication date: March 21, 2019
    Inventors: Renge ASAKAWA, Yoshiharu TANAKA, Hirotaka FUKUI, Yuki KURAMITSU, Taro ISOGAI
  • Patent number: 10191201
    Abstract: A light emitting emblem includes: a board; a light source arranged at the board; a light guide plate having a second peripheral edge and an inner side portion, the second peripheral edge having a first surface facing the light source and a second surface opposite to the first surface, the first surface including a light entering part into which light from the light source is incident, and the second surface including an inclination part through which the light incident into the light entering part is reflected to the inner side portion from the second peripheral edge; and a shielding plate that shields the light from the light source and prevents light not incident from the light entering part from being incident into the inner side portion, wherein the inclination part is positioned at an outer edge of the light emitting emblem from the shielding plate.
    Type: Grant
    Filed: June 9, 2017
    Date of Patent: January 29, 2019
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Yuki Kuramitsu, Hirotaka Fukui, Yoshiharu Tanaka
  • Patent number: 9983343
    Abstract: A decorative lighting apparatus includes: a light source; an elongated outer lens; and a housing, wherein: the outer lens includes: a surface protrusion having a surface that is the light emitting surface and both sides; a back protrusion having a back and both sides; a first connection part, one end thereof in a short-side direction being connected to one side of the protrusions; and a second connection part, one end thereof in a short-side direction being connected to the other side of the protrusion; the housing is fixedly attached to the other end in the short-side direction of each of the first and second connection parts; the light source is arranged to be opposite to one section of the back protrusion; and a width of both sides of the surface protrusion is greater than a width of a surface of the surface protrusion.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: May 29, 2018
    Assignee: TOYODA GOSEI CO., LTD.
    Inventors: Yoshiharu Tanaka, Yuki Kuramitsu, Shinichi Ogawa
  • Publication number: 20170355302
    Abstract: A manufacturing method of a display apparatus including a light blocking housing having a peripheral wall and formed at an inner side of the peripheral wall with a concave part, a light source arranged in the concave part, and a lid having an opposite surface to the housing, sealing the light source in the concave part, and having a light transmitting decorative surface formed at a part of the opposite surface except for an end portion, the manufacturing method includes: forming a top surface of the peripheral wall as a stepwise surface including an outer bonding surface and an inner stepped surface lowered more than the bonding surface by one step; and bonding the end portion of the opposite surface to the bonding surface in a state in which an end portion of the decorative surface is allowed to face the stepped surface.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 14, 2017
    Inventors: Yuki KURAMITSU, Hirotaka FUKUI, Yoshiharu TANAKA
  • Publication number: 20170357044
    Abstract: A light emitting emblem includes: a board; a light source arranged at the board; a light guide plate having a second peripheral edge and an inner side portion, the second peripheral edge having a first surface facing the light source and a second surface opposite to the first surface, the first surface including a light entering part into which light from the light source is incident, and the second surface including an inclination part through which the light incident into the light entering part is reflected to the inner side portion from the second peripheral edge; and a shielding plate that shields the light from the light source and prevents light not incident from the light entering part from being incident into the inner side portion, wherein the inclination part is positioned at an outer edge of the light emitting emblem from the shielding plate.
    Type: Application
    Filed: June 9, 2017
    Publication date: December 14, 2017
    Inventors: Yuki KURAMITSU, Hirotaka Fukui, Yoshiharu Tanaka
  • Publication number: 20170023723
    Abstract: A decorative lighting apparatus includes: a light source; an elongated outer lens; and a housing, wherein: the outer lens includes: a surface protrusion having a surface that is the light emitting surface and both sides; a back protrusion having a back and both sides; a first connection part, one end thereof in a short-side direction being connected to one side of the protrusions; and a second connection part, one end thereof in a short-side direction being connected to the other side of the protrusion; the housing is fixedly attached to the other end in the short-side direction of each of the first and second connection parts; the light source is arranged to be opposite to one section of the back protrusion; and a width of both sides of the surface protrusion is greater than a width of a surface of the surface protrusion.
    Type: Application
    Filed: July 22, 2016
    Publication date: January 26, 2017
    Inventors: Yoshiharu TANAKA, Yuki Kuramitsu, Shinichi Ogawa