Patents by Inventor Sung-Kwon Jang

Sung-Kwon Jang 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: 9517508
    Abstract: Disclosed is a convergence machining apparatus based on turning in which a rotational axis of a work piece fixed by a headstock and a tailstock and a center of a width of a slide surface of a bed on which a reciprocal carriage installed with a tool is transferred while being supported are positioned at the same virtual plane, thereby preventing an offset error according to a relative displacement between the work piece and the tool during processing.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: December 13, 2016
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Jong-Kweon Park, Seung Kook Ro, Byung-Sub Kim, Sung Cheul Lee, Gyung Ho Khim, Sung-Kwon Jang, Soo Chang Choi
  • Patent number: 9333559
    Abstract: Disclosed is a convergence machining apparatus based on turning in which a rotation center of a work piece to a headstock and a footstock and a slide surface of first and second beds mounted with a reciprocal carriage, the headstock, and the footstock are positioned on the same virtual line when viewed from a direction parallel with a rotation axis of the work piece, thereby preventing an offset error in processing due to a relative displacement between the work piece and a tool installed at the reciprocal carriage.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: May 10, 2016
    Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Jong-Kweon Park, Seung Kook Ro, Byung-Sub Kim, Sung Cheul Lee, Sung-Kwon Jang, Kyung Han Kim
  • Publication number: 20150101466
    Abstract: Disclosed is a convergence machining apparatus based on turning in which a rotation center of a work piece to a headstock and a footstock and a slide surface of first and second beds mounted with a reciprocal carriage, the headstock, and the footstock are positioned on the same virtual line when viewed from a direction parallel with a rotation axis of the work piece, thereby preventing an offset error in processing due to a relative displacement between the work piece and a tool installed at the reciprocal carriage.
    Type: Application
    Filed: March 20, 2014
    Publication date: April 16, 2015
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Jong-Kweon PARK, Seung Kook Ro, Byung-Sub Kim, Sung Cheul Lee, Sung-Kwon Jang, Kyung Han Kim
  • Patent number: 8914957
    Abstract: A capsule type reconfigurable multifunctional machining apparatus is disclosed. A capsule type reconfigurable multifunctional machining apparatus includes a rotating frame in which a plurality of processing modules may be installed to face an object to be machined disposed in a capsule type body and whose machining position and pose are controlled by rotation, a top frame for rotatably supporting the rotating frame, a bottom frame that is combined with the top frame under the top frame to support the top frame and in which vibration proof members are installed in positions where the bottom frame contacts the top frame, and a stage unit fixedly inserted into the internal center of the top frame to settle the object to be machined so that the height of the settled object to be machined may be controlled and in which an X-Y stage or a rotary stage may be selectively mounted.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: December 23, 2014
    Assignee: Korea Institute of Machinery & Materials
    Inventors: Jong-Kweon Park, Sung Cheul Lee, Byung-Sub Kim, Seung Kook Ro, Sung Kwon Jang
  • Publication number: 20140230617
    Abstract: Disclosed is a convergence machining apparatus based on turning in which a rotational axis of a work piece fixed by a headstock and a tailstock and a center of a width of a slide surface of a bed on which a reciprocal carriage installed with a tool is transferred while being supported are positioned at the same virtual plane, thereby preventing an offset error according to a relative displacement between the work piece and the tool during processing.
    Type: Application
    Filed: October 15, 2013
    Publication date: August 21, 2014
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Jong-Kweon PARK, Seung Kook Ro, Byung-Sub Kim, Sung Cheul Lee, Gyung Ho Khim, Sung-Kwon Jang, Soo Chang Choi
  • Publication number: 20140109367
    Abstract: A capsule type reconfigurable multifunctional machining apparatus is disclosed. A capsule type reconfigurable multifunctional machining apparatus includes a rotating frame in which a plurality of processing modules may be installed to face an object to be machined disposed in a capsule type body and whose machining position and pose are controlled by rotation, a top frame for rotatably supporting the rotating frame, a bottom frame that is combined with the top frame under the top frame to support the top frame and in which vibration proof members are installed in positions where the bottom frame contacts the top frame, and a stage unit fixedly inserted into the internal center of the top frame to settle the object to be machined so that the height of the settled object to be machined may be controlled and in which an X-Y stage or a rotary stage may be selectively mounted.
    Type: Application
    Filed: December 7, 2012
    Publication date: April 24, 2014
    Applicant: Korea Institute of Machinery & Materials
    Inventors: Jong-Kweon PARK, Sung Cheul Lee, Byung-Sub Kim, Seung Kook Ro, Sung Kwon Jang
  • Patent number: 7539527
    Abstract: An apparatus for matching an antenna of a mobile communication terminal and its method are disclosed. The apparatus for matching an antenna of a mobile communication terminal includes a sensing unit for generating a first match signal when an antenna of the mobile communication terminal and a display unit becomes adjacent to each other, and generating a second match signal when the display unit becomes apart from the antenna; a first matching unit for matching first impedance between the antenna and an RF signal generating unit based on the first match signal; and a second matching unit for matching second impedance between the antenna and the RF signal generating unit based on the second match signal.
    Type: Grant
    Filed: December 23, 2005
    Date of Patent: May 26, 2009
    Assignee: LG Electronics Inc.
    Inventors: Sung-Kwon Jang, Jin-Sik Yun
  • Publication number: 20060142075
    Abstract: An apparatus for matching an antenna of a mobile communication terminal and its method are disclosed. The apparatus for matching an antenna of a mobile communication terminal includes a sensing unit for generating a first match signal when an antenna of the mobile communication terminal and a display unit becomes adjacent to each other, and generating a second match signal when the display unit becomes apart from the antenna; a first matching unit for matching first impedance between the antenna and an RF signal generating unit based on the first match signal; and a second matching unit for matching second impedance between the antenna and the RF signal generating unit based on the second match signal.
    Type: Application
    Filed: December 23, 2005
    Publication date: June 29, 2006
    Inventors: Sung-Kwon Jang, Jin-Sik Yun