Patents by Inventor Youn-Sic Chun

Youn-Sic Chun 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: 20240122686
    Abstract: A dental screw for osseointegration of a bone surface includes a base, a healing cap, and a handle. The base includes a penetrating body configured to penetrate into a bone. An area of the penetrating body at a proximal side of the base is smaller than an area of the penetrating body at a distal side of the base.
    Type: Application
    Filed: July 24, 2023
    Publication date: April 18, 2024
    Applicant: E- WIRELIGNER CO., LTD.
    Inventor: Youn Sic Chun
  • Patent number: 11776714
    Abstract: A device for coating a wire with polymer fibers and method thereof are provided. The device includes a wire holder unit fixing both ends of a wire, a fiber forming unit including a first fiber forming module and a second fiber forming module that receive a polymer solution, face each other, and form fibers while approaching each other and retreating from each other, and a control unit adjusting a tension of the wire by controlling the wire holder unit and crossing the wire and the fibers by controlling the fiber forming unit. The fiber forming unit rotates the wire along an axis which extends in a longitudinal direction of the wire. The fibers are attached and coated on the wire when the wire and the fibers cross each other. The wire coating method can improve an adsorption state of coated fibers by including a post-processing step.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: October 3, 2023
    Assignee: E-WIRELIGNER CO., LTD.
    Inventor: Youn Sic Chun
  • Publication number: 20220157496
    Abstract: A wire coating device and method are provided. The wire coating device includes a wire holder unit fixing both ends of a wire, a fiber forming unit including a first fiber forming module and a second fiber forming module that are applied with a polymer solution, face each other, and form fibers while approaching each other and retreating from each other, and a control unit adjusting a tension of the wire by controlling the wire holder unit and crossing the wire and the fibers by controlling the fiber forming unit. The fiber forming unit spins the wire using a longitudinal direction of the wire as an axis. The fibers are attached and coated on the wire when the wire and the fibers cross each other. The wire coating method can improve an adsorption state of coated fibers by including a post-processing step.
    Type: Application
    Filed: January 26, 2021
    Publication date: May 19, 2022
    Inventor: Youn Sic CHUN
  • Publication number: 20210038347
    Abstract: Dental braces according to one embodiment of the present invention comprise: wires for straightening teeth; a coating agent coated on the outer surfaces of the wires; and fixing parts for fixing the wires, coated with the coating agent, on the surfaces of the teeth and fixing the wires such that the wires can move along the longitudinal direction of the wire. A wire positioning unit applied to the surface of the tooth comprising a body and a slot configured to receive the wire.
    Type: Application
    Filed: October 26, 2020
    Publication date: February 11, 2021
    Inventor: Youn Sic CHUN
  • Publication number: 20180214252
    Abstract: Dental braces according to one embodiment of the present invention comprise: wires for straightening teeth; a coating agent coated on the outer surfaces of the wires; and fixing parts for fixing the wires, coated with the coating agent, on the surfaces of the teeth and fixing the wires such that the wires can move along the longitudinal direction of the wire, wherein the coating agent coated on the wires is removed from the wires after the coating agent is covered with the fixing part, such that a clearance gap can be formed between the fixing part and the wire, thereby enabling accurate and smooth teeth-straightening.
    Type: Application
    Filed: March 16, 2016
    Publication date: August 2, 2018
    Inventor: Youn Sic CHUN
  • Patent number: 6027340
    Abstract: An orthodontic appliance comprising an upper splint defining a set of tooth sockets for secure but removable retention to the upper set of teeth, a lower splint defining a set of tooth sockets for secure but removable retention to the lower set of teeth, and a pair of elastic linkages which connect the upper and lower splints so as to force the maxilla forward. A traction bow with two ends adapted for releasable connection to the lower splint is provided with a sub bar fixed to its frontal center, and a hook is provided on each side of the upper splint. An elastic linkage is removably connected between each of the hooks and a clasp on an end of the sub bar. The sub bar is substantially shorter in length from end to end than the main bowed bar of the traction bow.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: February 22, 2000
    Inventor: Youn-Sic Chun