Patents by Inventor Chang Hwan Byun

Chang Hwan Byun 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).

  • Manufacturing method and apparatus of artificial teeth using dental CT
    Patent number: 8157564
    Abstract: The present invention discloses a manufacturing method and apparatus of artificial human teeth using dental CT. The method comprises the steps of: removing a damaged part of human teeth; obtaining surface coordinates of the teeth using a dental CT machine located at a dental clinic for a medical checkup; converting the surface coordinates of the actual teeth to CAD/CAM data; manufacturing artificial teeth by cutting metal or ceramic with a three-dimensional N/C machine using the converted data; obtaining shape data of upper or lower actual teeth corresponding to the artificial teeth; changing the shape of the artificial teeth by direct surface processing according to the shape data of the upper or lower teeth; and coating ceramic to the artificial teeth after sintering the processed artificial teeth for a predetermined period.
    Type: Grant
    Filed: August 29, 2007
    Date of Patent: April 17, 2012
    Assignee: Ray Co., Ltd.
    Inventors: Sang Chul Lee, Chang Hwan Byun, Tae Seok Park
  • Manufacturing Method and Apparatus of Artificial Teeth Using Dental CT
    Publication number: 20100055647
    Abstract: The present invention discloses a manufacturing method and apparatus of artificial human teeth using dental CT. The method comprises the steps of: removing a damaged part of human teeth; obtaining surface coordinates of the teeth using a dental CT machine located at a dental clinic for a medical checkup; converting the surface coordinates of the actual teeth to CAD/CAM data; manufacturing artificial teeth by cutting metal or ceramic with a three-dimensional N/C machine using the converted data; obtaining shape data of upper or lower actual teeth corresponding to the artificial teeth; changing the shape of the artificial teeth by direct surface processing according to the shape data of the upper or lower teeth; and coating ceramic to the artificial teeth after sintering the processed artificial teeth for a predetermined period.
    Type: Application
    Filed: August 29, 2007
    Publication date: March 4, 2010
    Applicant: RAY CO., LTD.
    Inventors: Sang Chul Lee, Chang Hwan Byun, Tae Seok Park