Patents by Inventor Seungkyu Kwak

Seungkyu Kwak 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: 20240081092
    Abstract: A foldable display device includes a foldable display panel and a foldable cover window disposed on the foldable display panel. The foldable cover window includes a flexible film and a first hard coating layer located on the flexible film with the first hard coating layer including a base material in combination with a linker material. The base material is a siloxane-based resin and the linker material is one of: a urethane-acrylic-based linker, an acrylic-based linker, and an epoxy-based linker.
    Type: Application
    Filed: November 9, 2023
    Publication date: March 7, 2024
    Inventors: Youngjoo PARK, Seungkyu LEE, Sejin JANG, Jungmin LEE, Taehyoung KWAK, Hyesun SONG
  • Publication number: 20070233244
    Abstract: Methods and devices are provided for replacing a spinal disc. In an exemplary embodiment, artificial disc replacements and methods are provided wherein at least a portion of a disc replacement can be implanted using a posterolateral approach. With a posterolateral approach, the spine is accessed more from the side of the spinal canal through an incision formed in the patient's back. A pathway is created from the incision to the disc space between adjacent vertebrae. Portions of the posterolateral annulus, and posterior lip of the vertebral body may be removed to access the disc space, leaving the remaining annulus and the anterior and posterior longitudinal ligaments in tact. The disc implant can be at least partially introduced using a posterolateral approach, yet it has a size that is sufficient to restore height to the adjacent vertebrae, and that is sufficient to maximize contact with the endplates of the adjacent vertebrae.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 4, 2007
    Applicant: DePuy Spine, Inc.
    Inventors: Erasmo Lopez, Amie Borgstrom, SeungKyu Kwak, John Hawkins, Charles Bartish
  • Publication number: 20070233261
    Abstract: Methods and devices are provided for replacing a spinal disc. In an exemplary embodiment, artificial disc replacements and methods are provided wherein at least a portion of a disc replacement can be implanted using a posterolateral approach. With a posterolateral approach, the spine is accessed more from the side of the spinal canal through an incision formed in the patient's back. A pathway is created from the incision to the disc space between adjacent vertebrae. Portions of the posterolateral annulus, and posterior lip of the vertebral body may be removed to access the disc space, leaving the remaining annulus and the anterior and posterior longitudinal ligaments in tact. The disc implant can be at least partially introduced using a posterolateral approach, yet it has a size that is sufficient to restore height to the adjacent vertebrae, and that is sufficient to maximize contact with the endplates of the adjacent vertebrae.
    Type: Application
    Filed: March 28, 2006
    Publication date: October 4, 2007
    Applicant: DePuy Spine, Inc.
    Inventors: Erasmo Lopez, Amie Borgstrom, SeungKyu Kwak, John Hawkins, Charles Bartish
  • Publication number: 20070213821
    Abstract: An intervertebral disc prosthesis comprises a left prosthesis component and a symmetric right prosthesis component positioned in an intervertebral space. Each prosthesis component includes a superior vertebra facing surface, an inferior vertebra facing surface, and a substantially spherical bearing surface. The bearing surface is positioned between the superior vertebra facing surface and the inferior vertebra facing surface. The superior vertebra facing surface is provided on a superior endplate and the inferior vertebra facing surface is provided on an inferior endplate. The superior endplate is operable to rotate relative to the inferior endplate upon the bearing surface. Each prosthesis component further comprises an elastic member positioned between an endplate and the bearing surface. The elastic member may be substantially cylindrical with a plurality of resilient ribs.
    Type: Application
    Filed: February 10, 2006
    Publication date: September 13, 2007
    Applicant: DePuy Spine, Inc.
    Inventors: SeungKyu Kwak, Amie Borgstrom, Erasmo Lopez, John Hawkins
  • Publication number: 20070161992
    Abstract: An interspinous spacer having opposed, pivotally connected s-shaped members that can enter the interspinous space in an initial state and then rotate to a final state to secure the implant to the adjacent interspinous processes.
    Type: Application
    Filed: December 22, 2005
    Publication date: July 12, 2007
    Inventors: Seungkyu Kwak, John Hawkins
  • Publication number: 20070156237
    Abstract: An implantable device for stabilizing at least a portion of a spinal column. The implantable device comprises an implantable artificial facet joint and one or more artificial ligaments connecting the implanted artificial facet joint to a third vertebra disposed adjacent to either the first or the second vertebra. The artificial facet joint, when implanted, spans a first vertebra and a second vertebra, adjacent to the first vertebra.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 5, 2007
    Inventor: Seungkyu Kwak
  • Publication number: 20070118118
    Abstract: A bone screw assembly includes a screw body, including anchor portion and rod-receiving portion, and a rod seat movably mounted in the screw body to allow for controlled angulation between a spinal connection element disposed in the rod seat and the screw body. The rod seat is pivotable in one or more selected directions about one or more axes relative to the screw body. The rod seat may include a first lower rod seat element disposed in a recess of the screw body having a cylindrical bottom surface to facilitate pivoting in a first direction. A second lower rod seat element is stacked on the first lower rod seat element and has a conical bottom surface abutting a top surface of the first lower rod seat element to facilitate pivoting in a second direction.
    Type: Application
    Filed: October 21, 2005
    Publication date: May 24, 2007
    Applicant: DePuy Spine, Inc.
    Inventors: SeungKyu Kwak, Nam Chao, Andrea Burke
  • Publication number: 20070005137
    Abstract: Various methods and devices for ligament replacement in the human body, and in particular, the spine are provided. In an exemplary embodiment, a ligament replacement system is provided that has an artificial ligament configured in the form of a closed loop. The artificial ligament is adapted to be coupled between the ligament seating regions of first and second connection members in a connection geometry that results in the artificial ligament having a large motion with a non-linear relationship between the force and displacement, similar to that of a natural ligament.
    Type: Application
    Filed: June 30, 2005
    Publication date: January 4, 2007
    Applicant: DePuy Spine, Inc.
    Inventor: SeungKyu Kwak
  • Publication number: 20060129239
    Abstract: A prosthetic facet joint having compression springs interposed between articulating surfaces for providing gradual resistance to extreme movements.
    Type: Application
    Filed: December 13, 2004
    Publication date: June 15, 2006
    Inventor: Seungkyu Kwak
  • Publication number: 20050203512
    Abstract: An interspinous spacer having a memory metal extension.
    Type: Application
    Filed: March 9, 2004
    Publication date: September 15, 2005
    Applicant: DePuy Spine, Inc.
    Inventors: John Hawkins, Amie Borgstrom, William Dunbar, Seungkyu Kwak
  • Publication number: 20050055096
    Abstract: A facet joint replacement system having an elongate rod and a polyaxial screw having a groove therein, wherein the rod is slidably received within the groove of the polyaxial screw.
    Type: Application
    Filed: May 20, 2004
    Publication date: March 10, 2005
    Applicant: DePuy Spine, Inc.
    Inventors: Hassan Serhan, Robert Labrom, John Hawkins, William Dunbar, Amie Borgstrom, Seungkyu Kwak, Andrew Dooris, Michael Slivka