Patents by Inventor Deok-Su Ryu

Deok-Su 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).

  • Patent number: 9296032
    Abstract: Disclosed is a method of manufacturing a porous metal foam cone assembly. The metal foam cone assembly according to the present invention includes providing a porous metal foam sheet; cutting the porous metal foam sheet to be in a predetermined shape using a cutting press that is provided with a knife tool; disposing the cut metal foam sheet on a base plate of a forming die and then primarily forming the metal foam sheet using a mandrel of a cone shape; secondarily forming the metal foam sheet using a left slider and a right slider of the forming die; and pressing an overlapping portion of the metal foam sheet using a stamping jig of the forming die after the forming using the left and right sliders.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: March 29, 2016
    Assignee: ALANTUM
    Inventors: Kwon-Oh Oh, Gi-Young Kim, Jong-Kwang Kim, Deok-Su Ryu, Jungsuk Bae
  • Publication number: 20130340879
    Abstract: Disclosed is a method of manufacturing a porous metal foam cone assembly. The metal foam cone assembly according to the present invention includes providing a porous metal foam sheet; cutting the porous metal foam sheet to be in a predetermined shape using a cutting press that is provided with a knife tool; disposing the cut metal foam sheet on a base plate of a forming die and then primarily forming the metal foam sheet using a mandrel of a cone shape; secondarily forming the metal foam sheet using a left slider and a right slider of the forming die; and pressing an overlapping portion of the metal foam sheet using a stamping jig of the forming die after the forming using the left and right sliders.
    Type: Application
    Filed: March 22, 2011
    Publication date: December 26, 2013
    Applicant: ALANTUM
    Inventors: Kwon-Oh OH, Gi-Young Kim, Jong-Kwang Kim, Deok-Su Ryu, Jungsuk Bae