Patents by Inventor Hie Tack Ryu

Hie Tack Ryu 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).

  • Method for manufacturing multilayer structure golf ball
    Patent number: 9375889
    Abstract: Disclosed is a method of manufacturing a golf ball having a multilayer structure. The method uses a forming apparatus including an upper mold, a lower mold, and an intermediate mold. The upper mold and the lower mold include a plurality of hemispheric cavities, respectively. The intermediate mold includes a plurality of protrusions having smaller diameters than those of the cavities, on a top and a bottom to correspond to the cavities.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: June 28, 2016
    Assignee: VOLVIK INC.
    Inventors: Hie Tack Ryu, Jung Soo Kim, Jae Ho Lee, Kyung Ahn Moon
  • METHOD FOR MANUFACTURING MULTILAYER STRUCTURE GOLF BALL
    Publication number: 20140015166
    Abstract: Disclosed is a method of manufacturing a golf ball having a multilayer structure. The method uses a forming apparatus including an upper mold, a lower mold, and an intermediate mold. The upper mold and the lower mold include a plurality of hemispheric cavities, respectively. The intermediate mold includes a plurality of protrusions having smaller diameters than those of the cavities, on a top and a bottom to correspond to the cavities.
    Type: Application
    Filed: February 21, 2012
    Publication date: January 16, 2014
    Applicant: VOLVIK INC.
    Inventors: Hie Tack Ryu, Jung Soo Kim, Jae Ho Lee, Kyung Ahn Moon