Patents Assigned to Toshio Itakura
  • Publication number: 20060278887
    Abstract: The present invention relates to a white light-emitting diode which emits white light by combining a blue light emitted from a light-emitting diode chip for emitting the blue light, with a light that is emitted through being excited by the blue light emitted from the light-emitting diode chip; and a manufacturing method therefor: and provides a white light-emitting diode which reproduces white light in a wide range while securing equal luminescent brightness to a light-emitting diode using a conventional YAG fluophor; and a manufacturing method therefor. The white light-emitting diode has a fluophor prepared by blending two fluorescent materials of a first fluorescent material which emits yellowish green light through being excited by the blue light emitted from the light-emitting diode chip, and a second fluorescent material which emits red light through being excited by the blue light emitted from the light-emitting diode chip.
    Type: Application
    Filed: October 25, 2005
    Publication date: December 14, 2006
    Applicant: Toshio Itakura
    Inventor: Jofuku Kanekiyo