Patents by Inventor DELPHIC CHEN

DELPHIC CHEN 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 manufacturing high-strength and high-ductility steel
    Patent number: 10047418
    Abstract: A method for manufacturing a high-strength and high-ductility steel includes steps in which an alloy steel is provided. The method continues with step in which the alloy steel is hot rolled, so that the microstructure of the alloy steel includes austenite, bainite and martensite. The method continues with step in which the hot-rolled alloy steel is annealed, so as to decompose bainite and martensite structures of the alloy steel into ferrite and austenite structures. The method continues with step in which the annealed alloy steel is cold rolled. The method continues with step in which the cold-rolled alloy steel is annealed, so as to manufacture a high-strength and high-ductility steel in a phase with 50% to 70% of residual austenite.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: August 14, 2018
    Assignee: CHINA STEEL CORPORATION
    Inventors: Chih-Pu Chang, Delphic Chen, Chih-Hung Ou, Jui-Fan Tu, Kuo-Cheng Yang, Lung-Jen Chiang, Ming-Chin Tsai
  • METHOD FOR MANUFACTURING HIGH-STRENGTH AND HIGH-DUCTILITY STEEL
    Publication number: 20160222494
    Abstract: A method for manufacturing a high-strength and high-ductility steel includes steps in which an alloy steel is provided. The method continues with step in which the alloy steel is hot rolled, so that the microstructure of the alloy steel includes austenite, bainite and martensite. The method continues with step in which the hot-rolled alloy steel is annealed, so as to decompose bainite and martensite structures of the alloy steel into ferrite and austenite structures. The method continues with step in which the annealed alloy steel is cold rolled. The method continues with step in which the cold-rolled alloy steel is annealed, so as to manufacture a high-strength and high-ductility steel in a phase with 50% to 70% of residual austenite.
    Type: Application
    Filed: July 10, 2015
    Publication date: August 4, 2016
    Inventors: CHIH-PU CHANG, DELPHIC CHEN, CHIH-HUNG OU, JUI-FAN TU, KUO-CHENG YANG, LUNG-JEN CHIANG, MING-CHIN TSAI