Patents by Inventor Jong Sok Choi

Jong Sok Choi 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).

  • Wafer Carrying Apparatus
    Publication number: 20090191043
    Abstract: A wafer carrying apparatus or cassette is disclosed, which includes a binding or retention unit, so as to prevent wafers from being damaged by crash, inadvertent egress or exiting, and so on. The wafer carrying apparatus includes a main body provided with a plurality of wafer insertion grooves formed on inner sides and an opening formed on a front surface to take wafers in and out, a binding unit configured to move up and down on the front surface of the main body, its position relative to the insertion grooves being variable so as to close and open the insertion grooves, and a mechanism for varying the position of the binding unit relative to the insertion grooves, the mechanism being connected to the binding unit.
    Type: Application
    Filed: February 2, 2009
    Publication date: July 30, 2009
    Inventor: Jong Sok CHOI
  • Wafer Carrying Apparatus
    Publication number: 20090142176
    Abstract: A wafer carrying apparatus or cassette is disclosed, which includes a binding or retention unit, so as to prevent wafers from being damaged by crash, inadvertent egress or exiting, and so on. The wafer carrying apparatus includes a main body provided with a plurality of wafer insertion grooves formed on inner sides and an opening formed on a front surface to take wafers in and out, a binding unit configured to move up and down on the front surface of the main body, its position relative to the insertion grooves being variable so as to close and open the insertion grooves, and a mechanism for varying the position of the binding unit relative to the insertion grooves, the mechanism being connected to the binding unit.
    Type: Application
    Filed: February 2, 2009
    Publication date: June 4, 2009
    Inventor: Jong Sok CHOI
  • Wafer carrying apparatus
    Patent number: 7500564
    Abstract: A wafer carrying apparatus or cassette is disclosed, which includes a binding or retention unit, so as to prevent wafers from being damaged by crash, inadvertent egress or exiting, and so on. The wafer carrying apparatus includes a main body provided with a plurality of wafer insertion grooves formed on inner sides and an opening formed on a front surface to take wafers in and out, a binding unit configured to move up and down on the front surface of the main body, its position relative to the insertion grooves being variable so as to close and open the insertion grooves, and a mechanism for varying the position of the binding unit relative to the insertion grooves, the mechanism being connected to the binding unit.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: March 10, 2009
    Assignee: Dongbu Electronics Co., Ltd.
    Inventor: Jong Sok Choi