Patents by Inventor Kyung Yul Han

Kyung Yul Han 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: 20240301740
    Abstract: A pop-up actuator for a vehicle door is applied to a vehicle door and pops up a circumferential portion of the door from a vehicle body when a signal for opening the door is inputted, allowing an occupant to easily open the door. The pop-up actuator for a vehicle door includes a housing provided in a vehicle, a drive motor mounted in the housing, a nut rod configured to rectilinearly moved by operation of the drive motor, and an operating rod coupled to an external portion of the nut rod and configured to extend from the housing by a forward movement of the nut rod to move the door away from a vehicle body.
    Type: Application
    Filed: September 20, 2023
    Publication date: September 12, 2024
    Applicants: Hyundai Motor Company, Kia Corporation, PYEONG HWA AUTOMOTIVE CO.,LTD.
    Inventors: Yong-Jae KIM, Jung-Ho HAN, Jeong-Han YOON, Kyung-Yul KIM
  • Patent number: 6616725
    Abstract: A self-grown monopoly compact grit and high pressure, high temperature process for preparing the same. The high pressure, high temperature sintered/synthesized monopoly compact grit is used in various industrial tools such as saw blades, grinding wheels, cutting tools and drill bits. Further, the monopoly compact grit of the present invention is produced from a seed of a mono-crystal of diamond or cubic boron nitride surrounded by either a self-grown crystal layer or an integrally bonded poly-crystalline sintered compact layer. The self-grown crystal layer is a new grown crystal structure where the seed crystal grows into a new phase through a normal diamond or cubic boron nitride synthesis process in the presence of a catalyst metal solvent.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: September 9, 2003
    Inventors: Hyun Sam Cho, John Chen, Kyung Yul Han
  • Publication number: 20030044613
    Abstract: A self-grown monopoly compact grit and high pressure, high temperature process for preparing the same. The high pressure, high temperature sintered/synthesized monopoly compact grit is used in various industrial tools such as saw blades, grinding wheels, cutting tools and drill bits. Further, the monopoly compact grit of the present invention is produced from a seed of a mono-crystal of diamond or cubic boron nitride surrounded by either a self-grown crystal layer or an integrally bonded poly-crystalline sintered compact layer. The self-grown crystal layer is a new grown crystal structure where the seed crystal grows into a new phase through a normal diamond or cubic boron nitride synthesis process in the presence of a catalyst metal solvent.
    Type: Application
    Filed: August 21, 2001
    Publication date: March 6, 2003
    Inventors: Hyun Sam Cho, John Chen, Kyung Yul Han
  • Patent number: 6068913
    Abstract: A new PCD/PCBN tool and method for making the same involve the use of an intermediate layer of polycrystalline material between a substrate and an outer working layer. The intermediate layer is formulated to limit or prevent the amount of cobalt or other binders which may infiltrate the outer working layer and accelerate deterioration under high throughput conditions. In accordance with one aspect of the invention, the substrate is corrugate or rounded projections to both reduce stress and to decrease infiltration of cobalt through the polycrystalline structures. In accordance with another aspect of the invention, the bonding medium and/or binder agents in the intermediate layer may be selected to decrease mobility of cobalt and the like.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: May 30, 2000
    Assignee: Sid Co., Ltd.
    Inventors: Hyun Sam Cho, Kyung-Yul Han