Patents by Inventor Chee-Sung PARK

Chee-Sung PARK 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: 11724944
    Abstract: A compound semiconductor which has an improved thermoelectric performance index together with excellent electrical conductivity, and thus may be utilized for various purposes such as a thermoelectric conversion material of thermoelectric conversion devices, solar cells, and the like, and to a method for preparing the same.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: August 15, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Moon Ko, Cheol Hee Park, Min Kyoung Kim, Chee Sung Park, Myung Jin Jung, Yu Ho Min
  • Publication number: 20220372276
    Abstract: The present disclosure relates to a polymer complex containing microcellulose fibers comprising nanofibrils and fine particles: and a polymer matrix comprising a polyester resin. According to the present disclosure, there is provided a polymer complex capable of exhibiting excellent mechanical properties while being environmentally friendly by including cellulose fibers as a reinforcing material.
    Type: Application
    Filed: May 31, 2021
    Publication date: November 24, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Chee Sung Park, Minsung Park, Kwang Seoung Jeon, Harim Jeon
  • Publication number: 20220274845
    Abstract: A compound semiconductor which has an improved thermoelectric performance index together with excellent electrical conductivity, and thus may be utilized for various purposes such as a thermoelectric conversion material of thermoelectric conversion devices, solar cells, and the like, and to a method for preparing the same.
    Type: Application
    Filed: December 20, 2017
    Publication date: September 1, 2022
    Applicant: LG CHEM, LTD.
    Inventors: Kyung Moon KO, Cheol Hee PARK, Min Kyoung KIM, Chee Sung PARK, Myung Jin JUNG, Yu Ho MIN
  • Patent number: 11358864
    Abstract: A chalcogen-containing compound of the following Chemical Formula 1 which exhibits excellent phase stability at a low temperature, particularly at a temperature corresponding to the driving temperature of a thermoelectric element, and also exhibits an excellent thermoelectric performance index through an increase in a power factor and a decrease in thermal conductivity, a method for preparing the same, and a thermoelectric element including the same: V1-xMxSn4Bi2Se7-yTey??[Chemical Formula 1] In the above Formula 1, V is a vacancy, M is an alkali metal, x is greater than 0 and less than 1, and y is greater than 0 and less than or equal to 1.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: June 14, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Min Kyoung Kim, Yu Ho Min, Cheol Hee Park, Kyung Moon Ko, Chee Sung Park, Myung Jin Jung
  • Patent number: 11309476
    Abstract: The present invention relates to a novel chalcogen-containing compound that exhibits excellent phase stability even at a temperature corresponding to the driving temperature of a thermoelectric element, and has a high output factor and thermoelectric figure of merit, a method for preparing the same, and a thermoelectric element including the same.
    Type: Grant
    Filed: March 19, 2018
    Date of Patent: April 19, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Yu Ho Min, Min Kyoung Kim, Cheol Hee Park, Kyung Moon Ko, Chee Sung Park, Myung Jin Jung
  • Patent number: 11306004
    Abstract: A chalcogen-containing compound of the following Chemical Formula 1 which exhibits excellent phase stability at a temperature corresponding to the driving temperature of a thermoelectric element, and also exhibits an excellent thermoelectric performance index (ZT) through an increase in a power factor and a decrease in thermal conductivity, a method for preparing the same, and a thermoelectric element including the same: V1-xMxSn4-yPbyBi2Se7-zTez??[Chemical Formula 1] In the above Formula 1, V is a vacancy, M is an alkali metal, x is greater than 0 and less than 1, y is greater than 0 and less than 4, and z is greater than 0 and less than or equal to 1.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: April 19, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Min Kyoung Kim, Yu Ho Min, Cheol Hee Park, Kyung Moon Ko, Chee Sung Park, Jae Hyun Kim, Myung Jin Jung
  • Patent number: 11245062
    Abstract: A chalcogen-containing compound of the following Chemical Formula 1, which may have decreased thermal conductivity and improved power factor in the low temperature region, and thus exhibit an excellent thermoelectric figure of merit, a method for preparing the same, and a thermoelectric element including the same: V1Sna?xInxSb2Tea+3??[Chemical Formula 1] wherein V, a and x are as defined in the specification.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: February 8, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Minkyoung Kim, Cheol Hee Park, Chee Sung Park, Myungjin Jung
  • Patent number: 11162159
    Abstract: The present invention provides a novel compound semiconductor that has improved thermoelectric figure of merit as well as excellent electric conductivity, and thus, can be applied for various uses such as thermoelectric conversion material of a thermoelectric conversion device, a solar battery, and the like, and a method for preparing the same.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: November 2, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Moon Ko, Min Kyoung Kim, Cheol Hee Park, Chee Sung Park, Myung Jin Jung, Yu Ho Min
  • Patent number: 11124860
    Abstract: The present invention provides a novel compound semiconductor that has improved thermoelectric figure of merit as well as excellent electric conductivity, and thus, can be applied for various uses such as thermoelectric conversion material of a thermoelectric conversion device, a solar battery, and the like, and a method for preparing the same.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: September 21, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Moon Ko, Min Kyoung Kim, Cheol Hee Park, Chee Sung Park, Myung Jin Jung, Yu Ho Min
  • Patent number: 11127891
    Abstract: A novel compound semiconductor that can be used for a solar battery, a thermoelectric material, and the like, and use thereof. The novel compound semiconductor may be represented by the following Chemical Formula: NdxSyCo4Sb12-zQz, wherein Q is one or more selected from the O, Se, or Te, 0<x<0.2, 0<y?1, and 0<z<12.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: September 21, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Moon Ko, Cheol Hee Park, Min Kyoung Kim, Myung Jin Jung, Chee Sung Park
  • Patent number: 11097947
    Abstract: A chalcogen-containing compound of the following chemical formula which exhibits an excellent thermoelectric performance index (ZT) through an increase in power factor and a decrease in thermal conductivity, a method for preparing the same, and a thermoelectric element including the same: MyV1-ySnxSb2Tex+3, wherein V is vacancy, M is at least one alkali metal, x?6, and 0<y?0.4.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 24, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Min Kyoung Kim, Yu Ho Min, Cheol Hee Park, Kyung Moon Ko, Chee Sung Park, Myung Jin Jung
  • Patent number: 11072530
    Abstract: A novel compound semiconductor which can be used for a solar cell, a thermoelectric material, or the like, and the use thereof.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: July 27, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Kyung Moon Ko, Cheol Hee Park, Chee Sung Park, Min Kyoung Kim
  • Patent number: 11024438
    Abstract: A chalcogen-containing compound of the following Chemical Formula 1 which exhibits excellent phase stability even at a low temperature, particularly at a temperature corresponding to an operating temperature of a thermoelectric element, and also exhibits a significantly superior power factor and thermoelectric performance index due to its excellent electrical conductivity and low thermal conductivity caused by its unique crystal lattice structure, a method for preparing the same, and a thermoelectric element including the same. [Chemical Formula 1]—V1-2xSn4Bi2-xAg3xSe7, wherein V is vacancy and 0<x<0.5.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: June 1, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Min Kyoung Kim, Yu Ho Min, Cheol Hee Park, Kyung Moon Ko, Chee Sung Park, Myung Jin Jung
  • Publication number: 20200377367
    Abstract: A chalcogen-containing compound of the following Chemical Formula 1 which exhibits excellent phase stability at a low temperature, particularly at a temperature corresponding to the driving temperature of a thermoelectric element, and also exhibits an excellent thermoelectric performance index through an increase in a power factor and a decrease in thermal conductivity, a method for preparing the same, and a thermoelectric element including the same: V1-xMxSn4Bi2Se7-yTey ??[Chemical Formula 1] In the above Formula 1, V is a vacancy, M is an alkali metal, x is greater than 0 and less than 1, and y is Greater than 0 and less than or equal to 1.
    Type: Application
    Filed: May 30, 2018
    Publication date: December 3, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Min Kyoung KIM, Yu Ho MIN, Cheol Hee PARK, Kyung Moon KO, Chee Sung PARK, Myung Jin JUNG
  • Patent number: 10837114
    Abstract: The present invention relates to a composition for forming a conductive pattern by irradiation of electromagnetic waves capable of allowing excellent formation of a conductive micro-pattern on various polymer resin products comprising a polycarbonate resin or on resin layers by a simple method such as irradiation of electromagnetic waves and plating, and capable of reducing the degradation of the physical properties of the resin products or resin layers caused by the irradiation of electromagnetic waves, a method for forming a conductive pattern using the same, and a resin structure having a conductive pattern. The composition for forming a conductive pattern by irradiation of electromagnetic waves comprises: a polymer resin comprising a polycarbonate resin; and an electromagnetic wave-absorbing inorganic additive which absorbs an electromagnetic wave having a wavelength in the infrared region and satisfies the characteristic that a laser sensitivity Ls defined by a predetermined relational expression is 1.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: November 17, 2020
    Assignee: LG CHEM., LTD.
    Inventors: Jae Hyun Kim, Shin Hee Jun, Jae Jin Kim, Han Nah Jeong, Chee-Sung Park, Bu Gon Shin, Cheol-Hee Park
  • Publication number: 20200328335
    Abstract: A novel compound semiconductor that can be used for a solar battery, a thermoelectric material, and the like, and use thereof. The novel compound semiconductor may be represented by the following Chemical Formula: NdxSyCo4Sb12-zQz, wherein Q is one or more selected from the O, Se, or Te, 0<x<0.2, 0<y?1, and 0<z<12.
    Type: Application
    Filed: February 12, 2018
    Publication date: October 15, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Kyung Moon KO, Cheol Hee PARK, Min Kyoung KIM, Myung Jin JUNG, Chee Sung PARK
  • Publication number: 20200295247
    Abstract: A chalcogen-containing compound of the following Chemical Formula 1, which may have decreased thermal conductivity and improved power factor in the low temperature region, and thus exhibit an excellent thermoelectric figure of merit, a method for preparing the same, and a thermoelectric element including the same: V1Sna?xInxSb2Tea+3??[Chemical Formula l] wherein V, a and x are as defined in the specification.
    Type: Application
    Filed: August 23, 2019
    Publication date: September 17, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Minkyoung KIM, Cheol Hee PARK, Chee Sung PARK, Myungjin JUNG
  • Publication number: 20200283873
    Abstract: The present invention provides a novel compound semiconductor that has improved thermoelectric figure of merit as well as excellent electric conductivity, and thus, can be applied for various uses such as thermoelectric conversion material of a thermoelectric conversion device, a solar battery, and the like, and a method for preparing the same.
    Type: Application
    Filed: December 22, 2017
    Publication date: September 10, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Kyung Moon KO, Min Kyoung KIM, Cheol Hee PARK, Chee Sung PARK, Myung Jin JUNG, Yu Ho MIN
  • Publication number: 20200002168
    Abstract: A chalcogen-containing compound of the following chemical formula which exhibits an excellent thermoelectric performance index (ZT) through an increase in power factor and a decrease in thermal conductivity, a method for preparing the same, and a thermoelectric element including the same: MyV1-ySnxSb2Tex+3, wherein V is vacancy, M is at least one alkali metal, x?6, and 0<y?0.4.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 2, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Min Kyoung Kim, Yu Ho Min, Cheol Hee Park, Kyung Moon Ko, Chee Sung Park, Myung Jin Jung
  • Publication number: 20190375654
    Abstract: A chalcogen-containing compound of the following Chemical Formula 1 which exhibits excellent phase stability at a temperature corresponding to the driving temperature of a thermoelectric element, and also exhibits an excellent thermoelectric performance index (ZT) through an increase in a power factor and a decrease in thermal conductivity, a method for preparing the same, and a thermoelectric element including the same: V1-xMxSn4-yPbyBi2Se7-zTez ??[Chemical Formula 1] In the above Formula 1, V is a vacancy, M is an alkali metal, x is greater than 0 and less than 1, y is greater than 0 and less than 4, and z is greater than 0 and less than or equal to 1.
    Type: Application
    Filed: May 11, 2018
    Publication date: December 12, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Min Kyoung KIM, Yu Ho MIN, Cheol Hee PARK, Kyung Moon KO, Chee Sung PARK, Jae Hyun KIM, Myung Jin JUNG