Patents by Inventor Wan-Ping Wang

Wan-Ping Wang 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: 20190198204
    Abstract: A method for making resistors includes: forming a protective layer on a metal plate; patterning the metal plate to form a plurality of spaced-apart resistor wires; forming a plurality of bottom parts on the metal plate, each of the bottom parts covering a portion of a respective one of the resistor wires such that the respective resistor wire defines two opposite electrode forming regions; laser-marking the protective layer to form a plurality of identification codes; laser-cutting the protective layer and the metal plate to form a plurality of spaced-apart pre-formed resistors; and forming two terminal electrodes respectively on the two opposite electrode forming regions of each of the resistor wires.
    Type: Application
    Filed: December 18, 2018
    Publication date: June 27, 2019
    Inventors: Wan-Ping WANG, Chen-Ling TSAI
  • Patent number: 9991032
    Abstract: A method for manufacturing a thin film chip resistor device includes the steps of: disposing a magnetic fixing member on a first surface of a substrate, and disposing a magnetic shadow mask on a second surface of the substrate opposite to the first surface, such that the magnetic shadow mask detachably and fixedly contacts the second surface of the substrate by virtue of an attractive magnetic force between the magnetic fixing member and the magnetic shadow mask; and depositing at least one resistor unit on the second surface of the substrate with the use of the magnetic shadow mask, the resistor unit including two separated first electrode elements and a resistor element that electrically interconnects the first electrode elements.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: June 5, 2018
    Assignee: RALEC ELECTRONIC CORPORATION
    Inventor: Wan-Ping Wang
  • Publication number: 20160351307
    Abstract: A method for manufacturing a thin film chip resistor device includes the steps of: disposing a magnetic fixing member on a first surface of a substrate, and disposing a magnetic shadow mask on a second surface of the substrate opposite to the first surface, such that the magnetic shadow mask detachably and fixedly contacts the second surface of the substrate by virtue of an attractive magnetic force between the magnetic fixing member and the magnetic shadow mask; and depositing at least one resistor unit on the second surface of the substrate with the use of the magnetic shadow mask, the resistor unit including two separated first electrode elements and a resistor element that electrically interconnects the first electrode elements.
    Type: Application
    Filed: November 19, 2015
    Publication date: December 1, 2016
    Inventor: WAN-PING WANG
  • Patent number: 8854175
    Abstract: A chip resistor device includes an insulating substrate, two indented patterns, and a resistor unit. The insulating substrate has opposite first and second surfaces. The first surface has two opposite edges and two electrode forming regions adjacent to the two opposite edges, respectively. The indented patterns are respectively formed in the electrode forming regions of the first surface and indented from the first surface. The resistor unit includes two contact electrodes respectively formed on the electrode forming regions of the first surface and filled into the indented patterns, and a resistor formed on the first surface between the two contact electrodes and electrically contacting the contact electrodes.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: October 7, 2014
    Assignee: Ralec Electronic Corporation
    Inventor: Wan-Ping Wang
  • Publication number: 20140055228
    Abstract: A chip resistor device includes an insulating substrate, two indented patterns, and a resistor unit. The insulating substrate has opposite first and second surfaces. The first surface has two opposite edges and two electrode forming regions adjacent to the two opposite edges, respectively. The indented patterns are respectively formed in the electrode forming regions of the first surface and indented from the first surface. The resistor unit includes two contact electrodes respectively formed on the electrode forming regions of the first surface and filled into the indented patterns, and a resistor formed on the first surface between the two contact electrodes and electrically contacting the contact electrodes.
    Type: Application
    Filed: March 8, 2013
    Publication date: February 27, 2014
    Applicant: RALEC ELECTRONIC CORPORATION
    Inventor: Wan-Ping Wang