Patents by Inventor Chusheng Zhang

Chusheng Zhang 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).

  • Publication number: 20090218585
    Abstract: A phosphor can be excited by UV, purple or blue light LED, its production and the light emitting devices. The general formula of the phosphor is LnaMb(O,F)12:(R3+, M?2+)x, wherein, Ln is at least one metal element selected from a group consisting of Sc, Y, La, Pr, Nd, Gd, Ho, Yb and Sm, 2.6?a?3.4; M is at least one element selected from a group consisting of B, Al and Ga, 4.5?b?5.5; R is at least one metal element selected from a group consisting of Ce and Tb; M? is at least one metal element selected from a group consisting of Ca, Sr, Ba, Mn and Zn, 0.001?x?0.4. The phosphor possesses broad emitting range, high efficiency, better uniformity and stability. A light emitting device can be obtained by incorporating this phosphor into a UV, purple or blue light emitting device.
    Type: Application
    Filed: May 13, 2009
    Publication date: September 3, 2009
    Applicants: GENERAL RESEARCH INSTITUTE FOR NONFERROUS METALS, BEIJING, GRIREM ADVANCED MATERIALS CO., LTD.
    Inventors: Weidong ZHUANG, Yunsheng Hu, Zhen Long, Chusheng Zhang, Xiaowei Huang, Hongwei Li