Patents by Inventor Syousaku KUBO

Syousaku KUBO 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 device
    Patent number: 11060699
    Abstract: An illumination device includes a light source configured to generate primary light having a Gaussian intensity distribution, an intensity-distribution converting member configured to convert the primary light to generate secondary light having a top-hat type intensity distribution, a wavelength converter configured to receive the secondary light from a light-receiving surface, generate tertiary light including the secondary light and wavelength-converted light in which a wavelength of the secondary light has been converted, and emit the tertiary light from an emission surface, and an antenna array having a plurality of optical antennas formed on the emission surface of the wavelength converter and arranged at a period larger than an optical wavelength of the secondary light in the wavelength converter.
    Type: Grant
    Filed: March 2, 2018
    Date of Patent: July 13, 2021
    Assignees: KYOTO UNIVERSITY, STANLEY ELECTRIC CO., LTD.
    Inventors: Shunsuke Murai, Yusuke Yokobayashi, Masaru Kuramoto, Keijiro Takashima, Syousaku Kubo
  • Wavelength conversion device and light source device
    Patent number: 10907773
    Abstract: A wavelength conversion device includes: a wavelength conversion element having a phosphor plate that converts the wavelength of incident light upon a light incident surface to generate wavelength-converted light, and emits the wavelength-converted light from a light emission surface; an antenna array constituted of a plurality of optical antennas that are periodically arranged on the light emission surface of the phosphor plate; and a recessed structure including at least one recessed portion provided in the light emission surface of the phosphor plate.
    Type: Grant
    Filed: July 12, 2019
    Date of Patent: February 2, 2021
    Assignees: STANLEY ELECTRIC CO., LTD., KYOTO UNIVERSITY
    Inventors: Shunsuke Murai, Yusuke Yokobayashi, Yasuyuki Kawakami, Keijiro Takashima, Syousaku Kubo, Yosuke Maemura
  • ILLUMINATION DEVICE
    Publication number: 20200386386
    Abstract: An illumination device includes a light source configured to generate primary light having a Gaussian intensity distribution, an intensity-distribution converting member configured to convert the primary light to generate secondary light having a top-hat type intensity distribution, a wavelength converter configured to receive the secondary light from a light-receiving surface, generate tertiary light including the secondary light and wavelength-converted light in which a wavelength of the secondary light has been converted, and emit the tertiary light from an emission surface, and an antenna array having a plurality of optical antennas formed on the emission surface of the wavelength converter and arranged at a period larger than an optical wavelength of the secondary light in the wavelength converter.
    Type: Application
    Filed: March 2, 2018
    Publication date: December 10, 2020
    Applicants: KYOTO UNIVERSITY, STANLEY ELECTRIC CO., LTD.
    Inventors: Shunsuke MURAI, Yusuke YOKOBAYASHI, Masaru KURAMOTO, Keijiro TAKASHIMA, Syousaku KUBO
  • WAVELENGTH CONVERSION DEVICE AND LIGHT SOURCE DEVICE
    Publication number: 20200025341
    Abstract: A wavelength conversion device includes: a wavelength conversion element having a phosphor plate that converts the wavelength of incident light upon a light incident surface to generate wavelength-converted light, and emits the wavelength-converted light from a light emission surface; an antenna array constituted of a plurality of optical antennas that are periodically arranged on the light emission surface of the phosphor plate; and a recessed structure including at least one recessed portion provided in the light emission surface of the phosphor plate.
    Type: Application
    Filed: July 12, 2019
    Publication date: January 23, 2020
    Applicants: KYOTO UNIVERSITY, STANLEY ELECTRIC CO., LTD.
    Inventors: Shunsuke MURAI, Yusuke YOKOBAYASHI, Yasuyuki KAWAKAMI, Keijiro TAKASHIMA, Syousaku KUBO, Yosuke MAEMURA