Patents by Inventor Thanh-Nghia NGUYEN

Thanh-Nghia NGUYEN 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).

  • Metal strip coil and method for manufacturing the same
    Patent number: 11097324
    Abstract: The present invention provides a metal strip coil that can suppress a shape failure at an end portion of the coil.
    Type: Grant
    Filed: September 28, 2017
    Date of Patent: August 24, 2021
    Assignee: HITACHI METALS, LTD.
    Inventors: Thanh-Nghia Nguyen, Takuya Okamoto, Shinichiro Fukada
  • Manufacturing method of metal strip coil for blades
    Patent number: 10322442
    Abstract: A manufacturing method of a metal strip coil for blades includes performing, on a steel band after a finishing cold rolling, a slit process that divides the steel band into a plurality of metal strips via joint operation of circular upper and lower blade cutters, and winding the metal strip into a coil shape after the slit process. In the slit process, a clearance of the upper and lower cutters is set within 5-25% of a metal strip thickness; an overlap amount of the upper and lower cutters is set within 5-80% of the metal strip thickness; and a clearance variation during the slit process is 30% or lower of the clearance. After the slit process, the metal strip is wound into a coil shape so that sag formed on an edge of the metal strip is positioned toward an axis center of a reel winding up the metal strip.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: June 18, 2019
    Assignee: HITACHI METALS, LTD.
    Inventor: Thanh-Nghia Nguyen
  • MANUFACTURING METHOD OF METAL STRIP COIL FOR BLADES
    Publication number: 20170087613
    Abstract: A manufacturing method of a metal strip coil for blades includes performing, on a steel band after a finishing cold rolling, a slit process that divides the steel band into a plurality of metal strips via joint operation of circular upper and lower blade cutters, and winding the metal strip into a coil shape after the slit process. In the slit process, a clearance of the upper and lower cutters is set within 5-25% of a metal strip thickness; an overlap amount of the upper and lower cutters is set within 5-80% of the metal strip thickness; and a clearance variation during the slit process is 30% or lower of the clearance. After the slit process, the metal strip is wound into a coil shape so that sag formed on an edge of the metal strip is positioned toward an axis center of a reel winding up the metal strip.
    Type: Application
    Filed: September 28, 2016
    Publication date: March 30, 2017
    Applicant: HITACHI METALS, LTD.
    Inventor: Thanh-Nghia NGUYEN