Patents by Inventor Wu-Bin Li

Wu-Bin Li 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).

  • Method for conversion treating surface of magnesium alloy workpiece
    Patent number: 9416454
    Abstract: A method for conversion treating a surface of a magnesium alloy workpiece includes the following steps: providing a magnesium alloy workpiece, degreasing the magnesium alloy workpiece, acid pickling the magnesium alloy workpiece in a first acid pickling treatment step, surface conditioning the magnesium alloy workpiece in a first surface conditioning treatment step, acid pickling the magnesium alloy workpiece in a second acid pickling treatment step, surface conditioning the magnesium alloy workpiece in a second surface conditioning treatment step, pre-phosphating the magnesium alloy workpiece in a pre-phosphating treatment step, and phosphating the magnesium alloy workpiece in a phosphating treatment step to form a phosphating film on the surface of the magnesium alloy workpiece.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: August 16, 2016
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Hao-Wei Chen, Wu-Bin Li, Yong-Hui Gao, Kun Qian
  • METHOD FOR CONVERSION TREATING SURFACE OF MAGNESIUM ALLOY WORKPIECE
    Publication number: 20140261896
    Abstract: A method for conversion treating a surface of a magnesium alloy workpiece includes the following steps: providing a magnesium alloy workpiece, degreasing the magnesium alloy workpiece, acid pickling the magnesium alloy workpiece in a first acid pickling treatment step, surface conditioning the magnesium alloy workpiece in a first surface conditioning treatment step, acid pickling the magnesium alloy workpiece in a second acid pickling treatment step, surface conditioning the magnesium alloy workpiece in a second surface conditioning treatment step, pre-phosphating the magnesium alloy workpiece in a pre-phosphating treatment step, and phosphating the magnesium alloy workpiece in a phosphating treatment step to form a phosphating film on the surface of the magnesium alloy workpiece.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 18, 2014
    Applicants: FOXCONN TECHNOLOGY CO., LTD., FU ZHUN PRECISION INDUSTRY (SHEN ZHEN) CO., LTD.
    Inventors: HAO-WEI CHEN, WU-BIN LI, YONG-HUI GAO, KUN QIAN
  • Magnesium coating solution and method for preparing the same
    Patent number: 7964030
    Abstract: A vanadate solution for conversion treating of surface of a magnesium alloy workpiece contains 8.20×104 to 8.20×10?2 mol/liter of metavanadate ion, 1.18×104 to 1.18×10?2 mol/liter of a polyhydroxylated aromatic compound, and balance of water. The pH value of the vanadate solution exceeds 1 and is less than 4. A method for preparing the vanadate solution is also provided.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: June 21, 2011
    Assignees: Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Foxconn Technology Co., Ltd.
    Inventors: Isao Nakatsugawa, Wu-Bin Li, Bin-Lung Ou