Shunichi
Kubota Shunichi, Yongin-Si KR
Patent application number | Description | Published |
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20080239206 | Ba-Sr-Ca CONTAINING COMPOUND AND WHITE LIGHT EMITTING DEVICE INCLUDING THE SAME - Disclosed is a compound comprising Ba—Sr—Ca obtained by heat treating, under a reducing atmosphere, a starting material which is a blend comprising Ba oxide; Sr oxide; Ca oxide; an oxide of Eu, Mn, Sm, Sn, Sb, Ce, Pr, Nd, Gd, Tb, Dy, Ho, Er, Tm, Yb, or Bi; Mg oxide; and an oxide of Si or Ge; the blend being mixed together in a molar ratio of x:y:z:(7-x-y-z):a:b, where 010-02-2008 | |
20100019655 | PHOSPHOR FOR WHITE LIGHT-EMITTING DEVICE AND WHITE LIGHT-EMITTING DEVICE INCLUDING THE SAME - Provided are an alkaline earth metal silicate-based phosphor which is a compound represented by Formula 1 below, and a white light-emitting device (LED) including the same: | 01-28-2010 |
Kubota Shunichi, Seongnam-Si KR
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20090050848 | METAL HYDROXY CARBONATE NANOPARTICLE COATED PHOSPHOR AND METHOD FOR PREPARING THE SAME - Disclosed herein are a metal hydroxy carbonate nanoparticle-coated phosphor and a preparation method thereof. The phosphor coated with metal hydroxy carbonate nanoparticles exhibit improved thermal stability and an increased luminance lifespan, when applied to display devices, e.g., PDPs and lamps. | 02-26-2009 |
20090075082 | METHOD FOR PREPARING NANOPHOSPHOR FROM METAL HYDROXY CARBONATE AND NANOPHOSPHOR PREPARED BY THE METHOD - Disclosed herein is a method for preparing a nanophosphor from a metal hydroxy carbonate and a nanophosphor prepared by the method. The method is capable of mass-production of a uniform particle-size nanophosphor with superior dispersibility and enables reduction in preparation costs. The nanophosphor prepared by the disclosed method exhibits high luminescence efficiency. | 03-19-2009 |
Kubota Shunichi, Suwon-Si KR
Patent application number | Description | Published |
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20080199728 | DEEP RED PHOSPHOR AND METHOD OF MANUFACTURING THE SAME - Disclosed is a deep red phosphor (600 nm to 670 nm) of Mn activity having a chemical formula of (k-x)MgOxAF | 08-21-2008 |