Patents by Inventor Hyun-Chul YOO

Hyun-Chul YOO 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).

  • Patent number: 11744684
    Abstract: Proposed is a method of manufacturing a dental composite blank. The method of manufacturing the dental composite blank includes (a) pressurizing a laminate for a composite blank having multiple layers having different colors at a first pressure (P1), (b) pressurizing the laminate for a composite blank, pressurized at the first pressure, at a second pressure (P2), and (c) manufacturing a composite blank by curing the pressurized laminate for a composite blank, in which steps (a) and (b) are each independently performed once or multiple times, and the first pressure (P1) is less than or greater than the second pressure (P2), ultimately making it possible to manufacture a dental composite blank that is similar to a natural tooth and thus exhibits a superior aesthetic appearance and high interlayer bonding strength.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: September 5, 2023
    Assignee: VERICOM CO., LTD.
    Inventors: Myung-Hwan Oh, Jong-Ho Kang, Hyun-Chul Yoo, Yun-Ki Kim
  • Publication number: 20220079724
    Abstract: Proposed is a method of manufacturing a dental composite blank. The method of manufacturing the dental composite blank includes (a) pressurizing a laminate for a composite blank having multiple layers having different colors at a first pressure (P1), (b) pressurizing the laminate for a composite blank, pressurized at the first pressure, at a second pressure (P2), and (c) manufacturing a composite blank by curing the pressurized laminate for a composite blank, in which steps (a) and (b) are each independently performed once or multiple times, and the first pressure (P1) is less than or greater than the second pressure (P2), ultimately making it possible to manufacture a dental composite blank that is similar to a natural tooth and thus exhibits a superior aesthetic appearance and high interlayer bonding strength.
    Type: Application
    Filed: December 20, 2019
    Publication date: March 17, 2022
    Inventors: Myung-Hwan OH, Jong-Ho KANG, Hyun-Chul YOO, Yun-Ki KIM
  • Publication number: 20200405461
    Abstract: The present invention relates to a method of manufacturing a dental composite blank, including (a) placing a composite paste in a mold, (b) pressurizing the composite paste placed in the mold at a first pressure (P1), (c) pressurizing the composite paste placed in the mold at a second pressure (P2), and (d) curing the pressurized composite paste, in which each of steps (b) and (c) is performed once or multiple times, and the first pressure (P1) is less than or greater than the second pressure (P2). The dental composite blank and the method of manufacturing the same are effective at dispersing a non-dispersed filler and removing bubbles, thus improving mechanical properties, through repeated pressurization at different pressures before curing the composite paste.
    Type: Application
    Filed: December 28, 2018
    Publication date: December 31, 2020
    Inventors: Myung-Hwan OH, Jong-Ho KANG, Hyun-Chul YOO, Joung-Lim HOO, Yun-Ki KIM