Patents by Inventor Shoumin Wu

Shoumin Wu 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).

  • Double cold reduction strip for shadow mask and process for producing the same
    Patent number: 9623457
    Abstract: The present invention discloses a double cold reduction strip for shadow mask and a process for producing the same, comprising the following procedures: converter steelmaking?continuous billet casting?hot rolling?pickling and cold rolling?continuous annealing?double cold reduction?finishing and oiling. The weight percentages of essential elements of the shadow mask strip are: C: ?0.001%, Mn: 0.10˜0.40%, Al: 0.02˜0.06%, Si: ?0.025%, P: ?0.015%, S: ?0.01%, O: ?0.004%, with remainders composed of Fe and inevitable impurities.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: April 18, 2017
    Assignee: BAOSHAN IRON & STEEL CO., LTD.
    Inventors: Shoumin Wu, Xiujun Li
  • DOUBLE COLD REDUCTION STRIP FOR SHADOW MASK AND PROCESS FOR PRODUCING THE SAME
    Publication number: 20150099141
    Abstract: The present invention discloses a double cold reduction strip for shadow mask and a process for producing the same, comprising the following procedures: converter steelmaking?continuous billet casting?hot rolling?pickling and cold rolling?continuous annealing?double cold reduction?finishing and oiling. The weight percentages of essential elements of the shadow mask strip are: C: ?0.001%, Mn: 0.10˜0.40%, Al: 0.02˜0.06%, Si: ?0.025%, P: ?0.015%, S: ?0.01%, O: ?0.004%, with remainders composed of Fe and inevitable impurities.
    Type: Application
    Filed: May 17, 2013
    Publication date: April 9, 2015
    Inventors: Shoumin Wu, Xiujun Li