Patents by Inventor Dao Zhang

Dao 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: 20160340765
    Abstract: A Zr-based amorphous alloy has the following formula: ZraCubAlcNidTieMf. a, b, c, d, e, and f of the formula are corresponding atomic percents with 50?a?55, 25?b?30, 15?c?24, 0.1?d?9, 0.1?e?5, 0.1?f?5, and a+b+c+d+e+f?100. M is selected from one or more of the following group consisting of Sc, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, and mixtures thereof.
    Type: Application
    Filed: July 17, 2015
    Publication date: November 24, 2016
    Inventors: GU-FANG CHEN, XIAN-LAN ZHAO, DAO ZHANG, ZAI-XIONG HU, XIAO-BO YUAN, YI-MIN JIANG, JUN-QI LI
  • Publication number: 20160187064
    Abstract: A crucible for melting metals includes a main body, a bottom portion, and a strengthening annular portion. The bottom portion is sealed to a first end of the main body. The strengthening annular portion is disposed on a second end of the main body. The main body, which is also thicker towards the bottom portion for additional strength, and the bottom portion are composed primarily of graphite, and the strengthening annular portion is composed of a ceramic material or fireproof material or both.
    Type: Application
    Filed: May 21, 2015
    Publication date: June 30, 2016
    Inventors: DAO ZHANG, KAI LUO, XIAO-BO YUAN, YI-MIN JIANG, JUN-QI LI
  • Patent number: 7176158
    Abstract: Copolymerization of Ni(H) or Co(II) acenaphthene diimine complexes containing olefinic substituents on aryl groups in the presence of a free radical initiator results in polymerized late transition metal catalysts which can be used for olefin polymerization or oligomerization. These catalysts have high catalyst activity for olefin polymerization or oligomerization.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: February 13, 2007
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stanley Wai-Yan Chow, Guo-Xin Jin, Zerong Lin, Robert J. Wittenbrink, Dao Zhang
  • Patent number: 7119155
    Abstract: Copolymerization of Ni(II) phenol imine complexes containing olefinic substituents on aryl groups with styrene in the presence of a radical initiator results in polymerized late transition metal catalysts which can be used for olefin polymerization or oligomerization. These catalysts have high catalyst activity for olefin polymerization or oligomerization.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: October 10, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Stanley Wai-Yan Chow, Guo-Xin Jin, Zerong Lin, Robert J. Wittenbrink, Dao Zhang
  • Publication number: 20050032368
    Abstract: Copper seed layers for use in damascene structures are commonly deposited by CVD because of their superior step coverage. However, these films have poor adhesion to the barrier layer. This problem has been overcome by preceding the deposition of the CVD copper layer with a metal plasma treatment that lays down a very thin layer of copper while the structure receiving it is maintained at a temperature below about ?40 C. This is followed by a short exposure to a nitrogen bearing plasma. The result is a seed layer having excellent step coverage as well as very good adhesion to the underlying barrier layer.
    Type: Application
    Filed: August 8, 2003
    Publication date: February 10, 2005
    Inventors: Chaoyong Li, Dao Zhang
  • Publication number: 20040147391
    Abstract: Copolymerization of Ni(II) phenol imine complexes containing olefinic substituents on aryl groups with styrene in the presence of a radical initiator results in polymerized late transition metal catalysts which can be used for olefin polymerization or oligomerization. These catalysts have high catalyst activity for olefin polymerization or oligomerization.
    Type: Application
    Filed: October 24, 2003
    Publication date: July 29, 2004
    Inventors: Stanley Wai-Yan Chow, Guo-Xin Jin, Zerong Lin, Robert J. Wittenbrink, Dao Zhang
  • Publication number: 20040147771
    Abstract: Copolymerization of Ni(II) or Co(II) acenaphthene imine complexes containing olefinic substituents on aryl groups with styrene in the presence of a radical initiator results in polymerized late transition metal catalysts which can be used for olefin polymerization or oligomerization. These catalysts have high catalyst activity for olefin polymerization or oligomerization.
    Type: Application
    Filed: October 24, 2003
    Publication date: July 29, 2004
    Inventors: Stanley Wai-Yan Chow, Guo-Xin Jin, Zerong Lin, Robert J. Wittenbrink, Dao Zhang