Patents by Inventor Yudai SHIBATA

Yudai SHIBATA 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: 11480317
    Abstract: A light source device includes a plurality of light sources; a condensing optical member; a fluorescent unit that converts at least a portion of the light from the light sources and condensed by the optical member into light including converted light and light from the light sources; and a sensor that detects an anomaly in the fluorescent unit, such sensor disposed within a circular area circumscribed by the light sources.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: October 25, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Toshiaki Takenaka, Shintaro Hayashi, Shogo Motegi, Yudai Shibata, Fumiya Yagi, Takeshi Abe
  • Publication number: 20220099274
    Abstract: A light source device, includes: a plurality of excitation light sources that emit primary light; an optical member that condenses the primary light; a fluorescent unit that emits secondary light including the primary light and wavelength converted light which is at least some of the primary light on which wavelength conversion is performed; and a sensor that detects an anomaly in the fluorescent unit. In addition, when seen along an optical axis of the primary light emitted by the plurality of excitation light sources, the sensor circumscribes, among the plurality of excitation light sources, a first excitation light source and a second excitation light source different from the first excitation light source, and is disposed inside an imaginary circle having, as a diameter, a line segment connecting the first excitation light source and the second excitation light source.
    Type: Application
    Filed: August 23, 2021
    Publication date: March 31, 2022
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Toshiaki TAKENAKA, Shintaro HAYASHI, Shogo MOTEGI, Yudai SHIBATA, Fumiya YAGI, Takeshi ABE
  • Patent number: 11280949
    Abstract: A light-emitting device includes: a laser light source that radiates blue-based light as primary light; a wavelength converting member that emits secondary light, the secondary light including wavelength-converted light, the wavelength-converted light being the primary light converted into light having more long-wavelength components than the primary light; a first light-guiding member that transmits the secondary light emitted by the wavelength converting member; and a second light-guiding member which includes a resin material, and transmits the secondary light transmitted by the first light-guiding member, and the first light-guiding member and the second light-guiding member are connected by a connector, the connector including a numerical aperture (NA) converting member that optically connects a transmission path in the first light-guiding member and a transmission path in the second light-guiding member.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: March 22, 2022
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yudai Shibata, Takeshi Abe, Shogo Motegi, Shintaro Hayashi
  • Patent number: 11179030
    Abstract: An illumination device includes a laser light source that emits laser light, a wavelength converter that converts the laser light to converted light of a different wavelength, and a first light guide that mixes the converted light while guiding, and a second light guide that guides the converted light mixed by the first light guide.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: November 23, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yudai Shibata, Yoshiyuki Takahira, Shintaro Hayashi
  • Publication number: 20210167255
    Abstract: A light-emitting device includes: a laser light source that radiates primary light; a wavelength converting member that emits secondary light, the secondary light including wavelength-converted light, the wavelength-converted light being the primary light converted into light having more long-wavelength components than the primary light; a first light-guiding member that transmits the secondary light; and a second light-guiding member that transmits the secondary light, and in the light-emitting device, an exit face of the first light-guiding member and an entrance face of the second light-guiding member are in direct contact with each other, and each of a residual stress in the exit face of the first light-guiding member and a residual stress in the entrance face of the second light-guiding member decreases with distance from a center of an interface between the exit face of the first light-guiding member and the entrance face of the second light-guiding member.
    Type: Application
    Filed: November 18, 2020
    Publication date: June 3, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yudai SHIBATA, Takeshi ABE, Shogo MOTEGI, Shintaro HAYASHI
  • Publication number: 20210165153
    Abstract: A light-emitting device includes: a laser light source that radiates blue-based light as primary light; a wavelength converting member that emits secondary light, the secondary light including wavelength-converted light, the wavelength-converted light being the primary light converted into light having more long-wavelength components than the primary light; a first light-guiding member that transmits the secondary light emitted by the wavelength converting member; and a second light-guiding member which includes a resin material, and transmits the secondary light transmitted by the first light-guiding member, and the first light-guiding member and the second light-guiding member are connected by a connector, the connector including a numerical aperture (NA) converting member that optically connects a transmission path in the first light-guiding member and a transmission path in the second light-guiding member.
    Type: Application
    Filed: November 20, 2020
    Publication date: June 3, 2021
    Applicant: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Yudai SHIBATA, Takeshi ABE, Shogo MOTEGI, Shintaro HAYASHI
  • Patent number: 11022277
    Abstract: A wavelength converter includes a base, a wavelength converting component that converts a wavelength of at least part of excitation light to emit converted light, and an optical filter disposed between the base and the wavelength converting component. The optical filter transmits or absorbs, out of the converted light including a wavelength range of from approximately 470 nm to approximately 750 nm, converted light of a predetermined wavelength included in the wavelength range.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: June 1, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yudai Shibata, Shintaro Hayashi
  • Patent number: 10928038
    Abstract: A wavelength converting member includes a first wavelength converting material and a second wavelength converting material. The emission wavelength of the second wavelength converting material is longer than the emission wavelength of the first wavelength converting material, and in the second wavelength converting material, the time from when excitation light stops to when fluorescence stops is an afterglow time, and the afterglow time is longer than the emission time of the first wavelength converting material and is 1 s or less. A light source device includes the wavelength converting member and a light source unit. A lighting device includes the wavelength converting member, a light source device, and a light guide disposed between the light source unit and the wavelength converting member.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: February 23, 2021
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yudai Shibata, Shintaro Hayashi
  • Publication number: 20200309349
    Abstract: A wavelength converter includes a base, a wavelength converting component that converts a wavelength of at least part of excitation light to emit converted light, and an optical filter disposed between the base and the wavelength converting component. The optical filter transmits or absorbs, out of the converted light including a wavelength range of from approximately 470 nm to approximately 750 nm, converted light of a predetermined wavelength included in the wavelength range.
    Type: Application
    Filed: March 18, 2020
    Publication date: October 1, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yudai SHIBATA, Shintaro HAYASHI
  • Publication number: 20200309348
    Abstract: A wavelength converting member includes a first wavelength converting material and a second wavelength converting material. The emission wavelength of the second wavelength converting material is longer than the emission wavelength of the first wavelength converting material, and in the second wavelength converting material, the time from when excitation light stops to when fluorescence stops is an afterglow time, and the afterglow time is longer than the emission time of the first wavelength converting material and is 1 s or less. A light source device includes the wavelength converting member and a light source unit. A lighting device includes the wavelength converting member, a light source device, and a light guide disposed between the light source unit and the wavelength converting member.
    Type: Application
    Filed: March 18, 2020
    Publication date: October 1, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yudai SHIBATA, Shintaro HAYASHI
  • Publication number: 20200138281
    Abstract: An illumination device includes a laser light source that emits laser light, a wavelength converter that converts the laser light to converted light of a different wavelength, and a first light guide that mixes the converted light while guiding, and a second light guide that guides the converted light mixed by the first light guide.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 7, 2020
    Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yudai SHIBATA, Yoshiyuki TAKAHIRA, Shintaro HAYASHI