Patents by Inventor In Chul Choi

In Chul 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).

  • Patent number: 8662875
    Abstract: Disclosed herein are an injection foam molding apparatus for manufacturing one-piece shoes or soles and one-piece shoes manufactured using the same. A thermoplastic resin is injected into top and bottom molds in a state in which the top and bottom molds are coupled with a middle mold and is then pressed to form the upper and lower parts of a shoe, the middle mold is separated therefrom, and then the top mold and bottom mold, including the upper part and lower part of the shoe, respectively, are pressed, thereby forming the upper part and lower part of the shoe into one body. The injection foam molding apparatus is advantageous in that, since functional one-piece shoes or soles, having various colors, hardnesses and specific gravities, and having excellent feeling and durability, can be manufactured using different materials by one apparatus, working time is decreased, and productivity can be increased.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: March 4, 2014
    Assignees: Comtech Chemical Co., Ltd., Sung Shin New Material Co., Ltd.
    Inventors: Byoung Mun Lim, Jang Sik Yang, Si Hyeok Lee, In Chul Choi
  • Publication number: 20100242312
    Abstract: Disclosed herein are an injection foam molding apparatus for manufacturing one-piece shoes or soles and one-piece shoes manufactured using the same. A thermoplastic resin is injected into top and bottom molds in a state in which the top and bottom molds are coupled with a middle mold and is then pressed to form the upper and lower parts of a shoe, the middle mold is separated therefrom, and then the top mold and bottom mold, including the upper part and lower part of the shoe, respectively, are pressed, thereby forming the upper part and lower part of the shoe into one body. The injection foam molding apparatus is advantageous in that, since functional one-piece shoes or soles, having various colors, hardnesses and specific gravities, and having excellent feeling and durability, can be manufactured using different materials by one apparatus, working time is decreased, and productivity can be increased.
    Type: Application
    Filed: June 15, 2010
    Publication date: September 30, 2010
    Applicants: COMTECH CHEMICAL CO., LTD., SUNG SHIN NEW MATERIAL CO., LTD.
    Inventors: Byoung Mun LIM, Jang Sik YANG, Si Hyeok LEE, In Chul CHOI
  • Publication number: 20080046751
    Abstract: Disclosed is a data security system using a USB device for maintaining security for files made while various kinds of application programs are used. The data security system comprises: a local computer having the various kinds of application programs installed therein and performing various works by executing the installed various kinds of application programs; and a USB device connected to the local computer via a USB communicating means, wherein, when the USB device is connected to the local computer, a security program is automatically installed from the USB device into the local computer, and the automatically-installed security program performs a security service for works in the local computer.
    Type: Application
    Filed: September 22, 2006
    Publication date: February 21, 2008
    Applicant: ADVANCED DIGITAL CHIPS INC.
    Inventor: In Chul Choi
  • Publication number: 20070300288
    Abstract: Disclosed are a computer display monitoring apparatus, a system including the same, and a computer display monitoring method. The computer display monitoring system includes a computer terminal; a monitor; and a display monitoring apparatus provided between the computer terminal and the monitor for capturing a video signal transmitted from the computer terminal to the monitor, the display monitoring apparatus including a first coupler and a second coupler.
    Type: Application
    Filed: September 12, 2006
    Publication date: December 27, 2007
    Applicant: ADVANCED DIGITAL CHIPS INC.
    Inventor: In Chul Choi