Patents by Inventor Ryouji YOKOTANI

Ryouji YOKOTANI 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).

  • Illumination light source having fastener fastening a pedestal and cover together with a mounting substrate interposed therebetween and light emitting elements surround the cover, the entirety of which is spaced in a horizontal direction from the light emitting elements
    Patent number: 10337704
    Abstract: An illumination light source includes a pedestal, a mounting substrate disposed on the pedestal, a plurality of LEDs mounted on the main surface of the mounting substrate, a cover which covers a partial region of the main surface of the mounting substrate, and a fastener which fastens the pedestal and the cover together while the mounting substrate is interposed between the pedestal and the cover. The plurality of LEDs are mounted so as to surround the cover.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: July 2, 2019
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryouji Yokotani, Yasuharu Ueno
  • Light-emitting device, illumination light source, and illumination device
    Patent number: 9689537
    Abstract: A light-emitting device includes: a substrate; a plurality of light-emitting elements arranged in an annular line on a main surface of the substrate; a sealing member which is annularly formed along the line of the plurality of light-emitting elements and seals the plurality of light-emitting elements; and a power supply part disposed on the main surface of the substrate and electrically connected to the plurality of light-emitting elements. The power supply part is located in an inner region interior to the sealing member formed in an annular shape.
    Type: Grant
    Filed: October 10, 2013
    Date of Patent: June 27, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuharu Ueno, Ryouji Yokotani
  • Light-emitting apparatus with fastening of optical component to pedestal through light-emitting substrate through-hole, illumination light source having the same, and lighting apparatus having the same
    Patent number: 9651223
    Abstract: A light-emitting apparatus includes a pedestal, a substrate, an LED, an optical component, and a fastener. The LED is mounted on the substrate, and the substrate includes a first through-hole. The substrate is disposed on the pedestal. The optical component is disposed in the emission direction of light from the LED. The fastener passes through the first through-hole and fastens the optical component to the pedestal. A portion of the pedestal or a portion of the optical component is inserted in the first through-hole.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: May 16, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryouji Yokotani, Yasuharu Ueno, Masashi Sakata, Yoshinori Kakuno, Yoshio Manabe
  • ILLUMINATION LIGHT SOURCE AND ILLUMINATION DEVICE
    Publication number: 20150369461
    Abstract: An illumination light source includes a pedestal, a mounting substrate disposed on the pedestal, a plurality of LEDs mounted on the main surface of the mounting substrate, a cover which covers a partial region of the main surface of the mounting substrate, and a fastener which fastens the pedestal and the cover together while the mounting substrate is interposed between the pedestal and the cover. The plurality of LEDs are mounted so as to surround the cover.
    Type: Application
    Filed: October 16, 2013
    Publication date: December 24, 2015
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO. LTD.
    Inventors: Ryouji YOKOTANI, Yasuharu UENO
  • Light-emitting device, and light source for lighting and lighting apparatus using the same
    Patent number: 9179511
    Abstract: A light-emitting device includes a first light-emitting element and a second light-emitting element. The first light-emitting element has a first LED, and emits a first spectrum. The second light-emitting element has a second LED and a constant voltage element connected in series, and emits a second spectrum different from the first spectrum. The second light-emitting element is connected in parallel to the first light-emitting element. First light-emitting element and the second light-emitting element are configured such that their lines indicating the forward current-forward voltage characteristics cross each other. This enables to change spectral distribution emitted from the light-emitting device just by changing power supplied from a single power circuit.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: November 3, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Kenji Sugiura, Ryouji Yokotani
  • LIGHT-EMITTING DEVICE, ILLUMINATION LIGHT SOURCE, AND ILLUMINATION DEVICE
    Publication number: 20150308632
    Abstract: A light-emitting device includes: a substrate; a plurality of light-emitting elements arranged in an annular line on a main surface of the substrate; a sealing member which is annularly formed along the line of the plurality of light-emitting elements and seals the plurality of light-emitting elements; and a power supply part disposed on the main surface of the substrate and electrically connected to the plurality of light-emitting elements. The power supply part is located in an inner region interior to the sealing member formed in an annular shape.
    Type: Application
    Filed: October 10, 2013
    Publication date: October 29, 2015
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yasuharu UENO, Ryouji YOKOTANI
  • LIGHT-EMITTING APPARATUS, ILLUMINATION LIGHT SOURCE, AND LIGHTING APPARATUS
    Publication number: 20150109778
    Abstract: A light-emitting apparatus includes a pedestal, a substrate, an LED, an optical component, and a fastener. The LED is mounted on the substrate, and the substrate includes a first through-hole. The substrate is disposed on the pedestal. The optical component is disposed in the emission direction of light from the LED. The fastener passes through the first through-hole and fastens the optical component to the pedestal. A portion of the pedestal or a portion of the optical component is inserted in the first through-hole.
    Type: Application
    Filed: October 14, 2014
    Publication date: April 23, 2015
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Ryouji YOKOTANI, Yasuharu UENO, Masashi SAKATA, Yoshinori KAKUNO, Yoshio MANABE
  • LIGHT-EMITTING DEVICE, AND LIGHT SOURCE FOR LIGHTING AND LIGHTING APPARATUS USING THE SAME
    Publication number: 20150008835
    Abstract: A light-emitting device includes a first light-emitting element and a second light-emitting element. The first light-emitting element has a first LED, and emits a first spectrum. The second light-emitting element has a second LED and a constant voltage element connected in series, and emits a second spectrum different from the first spectrum. The second light-emitting element is connected in parallel to the first light-emitting element. First light-emitting element and the second light-emitting element are configured such that their lines indicating the forward current-forward voltage characteristics cross each other. This enables to change spectral distribution emitted from the light-emitting device just by changing power supplied from a single power circuit.
    Type: Application
    Filed: July 2, 2014
    Publication date: January 8, 2015
    Inventors: Kenji SUGIURA, Ryouji YOKOTANI