Patents by Inventor Yumi KANNO

Yumi KANNO 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).

  • Phosphor and method of manufacturing same, and LED lamp
    Patent number: 11005010
    Abstract: A phosphor has a composition represented by Chemical formula 1: 1.5Y2O3ยท2.5aAl2O3:Ce where a is a number satisfying 1.02<a<1.1.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: May 11, 2021
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Materials Co., Ltd.
    Inventors: Yoshitaka Funayama, Yumi Kanno, Hirofumi Takemura, Tsutomu Ishii, Yasuhiro Shirakawa
  • White LED lamp, backlight, light emitting device, display device and illumination device
    Patent number: 10886434
    Abstract: A white LED lamp including: a conductive portion; a light emitting diode chip mounted on the conductive portion, for emitting a primary light having a peak wavelength of 360 nm to 420 nm; a transparent resin layer including a first hardened transparent resin, for sealing the light emitting diode chip; and a phosphor layer covering the transparent resin layer, the phosphor layer being formed by dispersing a phosphor powder into a second hardened transparent resin, and the phosphor powder receiving the primary light and radiating a secondary light having a wavelength longer than that of the primary light. An energy of the primary light contained in the radiated secondary light is 0.4 mW/lm or less.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: January 5, 2021
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.
    Inventors: Tsutomu Ishii, Hajime Takeuchi, Yasumasa Ooya, Katsutoshi Nakagawa, Yumi Kanno, Masaki Toyoshima, Yasuhiro Shirakawa, Ryo Sakai
  • PHOSPHOR AND METHOD OF MANUFACTURING SAME, AND LED LAMP
    Publication number: 20180138374
    Abstract: A phosphor has a composition represented by Chemical formula 1: 1.5Y2O3.2.5aAl2O3:Ce where a is a number satisfying 1.02<a<1.1.
    Type: Application
    Filed: December 6, 2017
    Publication date: May 17, 2018
    Applicants: KABUSHIKI KAISHA TOSHIBA, TOSHIBA MATERIALS CO., LTD.
    Inventors: Yoshitaka FUNAYAMA, Yumi KANNO, Hirofumi TAKEMURA, Tsutomu ISHll, Yasuhiro SHIRAKAWA