Patents by Inventor Kyoung Joon Kim

Kyoung Joon Kim 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).

  • Geothermally-cooled solar thermoelectric energy harvester
    Patent number: 9385292
    Abstract: A solar thermoelectric generator (STEG) is disclosed. A STEG includes a thermoelectric generator (TEG) configured to convert light energy from solar light into electrical energy, and a heat transfer structure coupled to the TEG where a portion of the heat transfer structure is configured to be embedded in the earth. The TEG includes a first side and a second side, wherein the solar light is incident on the first side of the TEG and the heat transfer structure is configured to provide cooling for the second side of the TEG using geothermal cooling. The use of geothermal cooling to provide cooling for the second side of the TEG increases the temperature difference across the TEG of the STEG, thereby increasing the net generation efficiency of the STEG.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: July 5, 2016
    Assignee: Alcatel Lucent
    Inventors: Kyoung Joon Kim, Todd R. Salamon
  • GEOTHERMALLY-COOLED SOLAR THERMOELECTRIC ENERGY HARVESTER
    Publication number: 20130118543
    Abstract: A solar thermoelectric generator (STEG) is disclosed. A STEG includes a thermoelectric generator (TEG) configured to convert light energy from solar light into electrical energy, and a heat transfer structure coupled to the TEG where a portion of the heat transfer structure is configured to be embedded in the earth. The TEG includes a first side and a second side, wherein the solar light is incident on the first side of the TEG and the heat transfer structure is configured to provide cooling for the second side of the TEG using geothermal cooling. The use of geothermal cooling to provide cooling for the second side of the TEG increases the temperature difference across the TEG of the STEG, thereby increasing the net generation efficiency of the STEG.
    Type: Application
    Filed: November 10, 2011
    Publication date: May 16, 2013
    Inventors: Kyoung Joon Kim, Todd R. Salamon
  • Doherty amplifier
    Patent number: 8358174
    Abstract: The embodiment relates to a Doherty amplifier, wherein in order to perform impedance matching. The embodiment comprises an impedance converter and a connector. The impedance converter includes a plurality of lines having different lengths and disposes between an output end of a carrier amplifier and an output end of a peaking amplifier. The connector connects a line selected from the plurality of lines having different lengths of the impedance converter to the output end of the carrier amplifier and to the output end of the peaking amplifier.
    Type: Grant
    Filed: May 4, 2012
    Date of Patent: January 22, 2013
    Assignee: SK Telecom Co., Ltd.
    Inventors: Dong Young Kim, Jae Woan Byun, Sung Ho Shin, Kyoung Joon Kim, Chan Young Park
  • DOHERTY AMPLIFIER
    Publication number: 20120223775
    Abstract: The embodiment relates to a Doherty amplifier, wherein in order to perform impedance matching. The embodiment comprises an impedance converter and a connector. The impedance converter includes a plurality of lines having different lengths and disposes between an output end of a carrier amplifier and an output end of a peaking amplifier. The connector connects a line selected from the plurality of lines having different lengths of the impedance converter to the output end of the carrier amplifier and to the output end of the peaking amplifier.
    Type: Application
    Filed: May 4, 2012
    Publication date: September 6, 2012
    Applicant: SK TELECOM CO., LTD.
    Inventors: Dong Young KIM, Jae Woan BYUN, Sung Ho SHIN, Kyoung Joon KIM, Chan Young PARK