Patents by Inventor Kentaro TONE

Kentaro TONE 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).

  • Light emitting device
    Patent number: 10975497
    Abstract: A light emitting device includes a laser diode that emits a blue light, and a wavelength conversion part that absorbs a part of light emitted from the laser diode and converts a wavelength thereof. The wavelength conversion part includes a YAG-based single crystal phosphor. Irradiance of light emitted from the laser diode and irradiated on the wavelength conversion part is not less than 80 W/mm2.
    Type: Grant
    Filed: December 27, 2016
    Date of Patent: April 13, 2021
    Assignees: Tamura Corporation, Koha Co., Ltd.
    Inventors: Mikihiko Uwani, Akira Ito, Hiroyuki Sawano, Kentaro Tone, Hiroaki Sano, Daisuke Inomata, Kazuyuki Iizuka
  • LIGHT EMITTING DEVICE
    Publication number: 20200200347
    Abstract: A light emitting device includes a laser diode that emits a blue light, and a wavelength conversion part that absorbs a part of light emitted from the laser diode and converts a wavelength thereof. The wavelength conversion part includes a YAG-based single crystal phosphor. Irradiance of light emitted from the laser diode and irradiated on the wavelength conversion part is not less than 80 W/mm2.
    Type: Application
    Filed: December 27, 2016
    Publication date: June 25, 2020
    Applicants: TAMURA CORPORATION, KOHA CO., LTD.
    Inventors: Mikihiko UWANI, Akira ITO, Hiroyuki SAWANO, Kentaro TONE, Hiroaki SANO, Daisuke INOMATA, Kazuyuki IIZUKA
  • Lighting device and display device
    Patent number: 9169980
    Abstract: A lighting device includes a translucent member having the same cross sectional tubular shape throughout a longitudinal direction and including a lens that includes a light incident surface for receiving incident light and a pair of light exit surface for diffusing and emitting the light incident on the light incident surface to the outside, and a light-emitting portion mounted on a substrate and emitting the light toward a region including the light incident surface of the translucent member, where in the translucent member includes a pair of light guide portions for guiding the light incident on the light incident surface to a pair of the light exit surfaces so that the light incident on the light incident surface is diffused and emitted from the pair of light exit surfaces in a width direction that is orthogonal to the longitudinal direction.
    Type: Grant
    Filed: March 19, 2014
    Date of Patent: October 27, 2015
    Assignee: KOHA CO., LTD.
    Inventors: Hiroki Iwazaki, Kentaro Tone
  • LIGHTING DEVICE AND DISPLAY DEVICE
    Publication number: 20140293646
    Abstract: A lighting device includes a translucent member having the same cross sectional tubular shape throughout a longitudinal direction and including a lens that includes a light incident surface for receiving incident light and a pair of light exit surface for diffusing and emitting the light incident on the light incident surface to the outside, and a light-emitting portion mounted on a substrate and emitting the light toward a region including the light incident surface of the translucent member, where in the translucent member includes a pair of light guide portions for guiding the light incident on the light incident surface to a pair of the light exit surfaces so that the light incident on the light incident surface is diffused and emitted from the pair of light exit surfaces in a width direction that is orthogonal to the longitudinal direction.
    Type: Application
    Filed: March 19, 2014
    Publication date: October 2, 2014
    Applicant: KOHA CO., LTD.
    Inventors: Hiroki IWAZAKI, Kentaro TONE