Patents by Inventor Sang-Gon Kim

Sang-Gon 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).

  • Publication number: 20240208830
    Abstract: The present invention pertains to a method for producing SiO2 powder having a particle size of 1.0-20.0 ?m, the method comprising the steps of: adding CH3COOH to H2O and stirring; after the stirring, adding TEOS and stirring; removing the synthetic stock solution in a filter press, and washing the solution with H2O; and after the washing, drying the solution to obtain dried silica particle powder having a moisture content of 0.5% or less. Also provided is monodispersed amorphous spherical silica particle powder having a particle size of 1.0-20.0 ?m, a whiteness of at least 90, and a purity of at least 99.9%. Large-diameter silica particles of the present invention are monodispersed particles having similar particle sizes, are spherical and have a smooth surface, can be used as cosmetic scrubs due to having a soft feeling of use without causing skin irritation, and have the advantage of being environmentally friendly.
    Type: Application
    Filed: March 3, 2021
    Publication date: June 27, 2024
    Applicant: SUKGYUNG AT CO., LTD.
    Inventors: Hyung Sup LIM, Hyung Jun LIM, O Sung KWON, Sang Gon KIM, Hyeon Seok CHOI
  • Patent number: 11414520
    Abstract: The polyamide-imide copolymer according to the present disclosure makes it possible to provide a polyamide-imide film that is excellent in both thermal stability and mechanical properties, and is capable of realizing anisotropy.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: August 16, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Yunah Yu, Hyung Sam Choi, Byung Guk Kim, Young Sik Eom, Sung Yeol Choi, Sang Gon Kim, Duk Hun Jang
  • Publication number: 20220234175
    Abstract: The present disclosure relates to a panel cutting jig including: a main body having an insertion channel, into which a plate-shaped panel is inserted, formed therein; and a holder that is elastically deformable and supports the main body to generate elastic force toward the insertion channel.
    Type: Application
    Filed: August 27, 2021
    Publication date: July 28, 2022
    Applicant: RICO BLINDS CO., LTD.
    Inventors: Sang Gon KIM, Jong Woo LEE
  • Patent number: 11377556
    Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based block copolymer film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having low haze and yellow index value while exhibiting excellent transparency.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: July 5, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Duk Hun Jang, Byung Guk Kim, Young Sik Eom, Sung Yeol Choi, Sang Gon Kim, Jin Sook Ryu, Sun Ok Oh, Hyung Sam Choi
  • Publication number: 20220206404
    Abstract: The present invention provides an external additive for toner, selected from the group consisting of tin oxide fine particles, complex tin oxide fine particles, and a mixture of the same fine particles, wherein the fine particles are (?) charged fine particles having an energy band gap of 3.2 to 3.6 eV, an electronegativity value (?) of 15 to 18, and a Blow-Off charge amount (uC/g) of ?100 to ?150. The external additive for toner of the present invention can: replace nano-sized titanium dioxide which has been conventionally used as an external additive for toner; guarantee general consumers using image devices as well as workers in the image industry safety from the harmful influences that may be generated upon exposure to the nano-sized titanium dioxide detached from the surface of a toner in use; and be safe for the human body.
    Type: Application
    Filed: April 16, 2020
    Publication date: June 30, 2022
    Applicant: SUKGYUNG AT CO., LTD.
    Inventors: Hyung Jun LIM, Young Chul YOU, O Sung KWON, Jin Seop KIM, Sang Gon KIM, Eun Young SONG, So Yeon LEE, Yong Gu YOO, Hyeon Seok CHOI
  • Publication number: 20220024285
    Abstract: The present disclosure relates to a blind for vehicles, which includes: a blind part provided to be transformed in shape by flexibility thereof while having a wrinkled structure to enable expansion in a vertical direction; and a pair of fixing plates provided in a single-pair structure to be attached to each of upper and lower surfaces of the blind part, and functioning as a guide unit guiding a shape transformation by expandability and flexibility while supporting the blind part as well as functioning as a fixing unit to fix a window side of a vehicle.
    Type: Application
    Filed: August 27, 2021
    Publication date: January 27, 2022
    Applicant: RICO BLINDS CO., LTD.
    Inventors: Sang Gon KIM, Young Sam KWON
  • Publication number: 20210277235
    Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based block copolymer film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having low haze and yellow index value while exhibiting excellent transparency.
    Type: Application
    Filed: December 13, 2017
    Publication date: September 9, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Duk Hun JANG, Byung Guk KIM, Young Sik EOM, Sung Yeol CHOI, Sang Gon KIM, Jin Sook RYU, Sun Ok OH, Hyung Sam CHOI
  • Patent number: 11098160
    Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having a large molecular weight and exhibiting colorless and transparent properties.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: August 24, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Sung Yeol Choi, Byung Guk Kim, Sang Gon Kim, Duk Hun Jang, Hyung Sam Choi
  • Publication number: 20210189068
    Abstract: The polyamide-imide copolymer according to the present disclosure makes it possible to provide a polyamide-imide film that is excellent in both thermal stability and mechanical properties, and is capable of realizing anisotropy.
    Type: Application
    Filed: October 15, 2018
    Publication date: June 24, 2021
    Applicant: LG CHEM, LTD.
    Inventors: Yunah YU, Hyung Sam CHOI, Byung Guk KIM, Young Sik EOM, Sung Yeol CHOI, Sang Gon KIM, Duk Hun JANG
  • Patent number: 10903410
    Abstract: The embodiments of the present invention relate to a thermoelectric element and a thermoelectric module used for cooling, and the thermoelectric module can be made thin by having a first substrate and a second substrate with different surface areas to raise the heat-dissipation effectiveness.
    Type: Grant
    Filed: May 3, 2019
    Date of Patent: January 26, 2021
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Yong Sang Cho, Sang Gon Kim, Sook Hyun Kim, Chae Hoon Kim, Myoung Lae Roh, Jong Bae Shin, Boone Won, Jong Min Lee
  • Patent number: 10800882
    Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film exhibiting excellent mechanical properties while having a high molecular weight, and being colorless and transparent.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: October 13, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Sang Gon Kim, Sung Yeol Choi, Duk Hun Jang, Hyung Sam Choi
  • Publication number: 20200239634
    Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film having a large molecular weight and exhibiting colorless and transparent properties.
    Type: Application
    Filed: October 12, 2017
    Publication date: July 30, 2020
    Applicant: LG CHEM, LTD.
    Inventors: Sung Yeol CHOI, Byung Guk KIM, Sang Gon KIM, Duk Hun JANG, Hyung Sam CHOI
  • Patent number: 10717819
    Abstract: The present disclosure relates to a polyimide-based block copolymer film. The polyimide-based block copolymer film according to the present disclosure exhibits excellent an ultraviolet shielding property to be suitably used for substrates for displays, protective films for displays, touch panels, and the like.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: July 21, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Duk Hun Jang, Byung Guk Kim, Young Sik Eom, Sung Yeol Choi, Sang Gon Kim, Hyung Sam Choi
  • Patent number: 10689489
    Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film exhibiting excellent mechanical properties while being colorless and transparent. The polyimide-based film may be used as a cover film of various flexible or foldable devices.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: June 23, 2020
    Assignee: LG CHEM LTD.
    Inventors: Sung Yeol Choi, Byung Guk Kim, Sang Gon Kim, Duk Hun Jang, Hyung Sam Choi
  • Publication number: 20190315925
    Abstract: The present disclosure relates to a polyimide-based copolymer and a polyimide-based film including the same. The polyimide-based copolymer according to the present disclosure can provide a polyimide-based film exhibiting low absorbency while having excellent heat resistance and mechanical properties.
    Type: Application
    Filed: July 2, 2018
    Publication date: October 17, 2019
    Inventors: Sung Yeol CHOI, Young Sik EOM, Sang Gon KIM, Hyung Sam CHOI
  • Publication number: 20190259930
    Abstract: The embodiments of the present invention relate to a thermoelectric element and a thermoelectric module used for cooling, and the thermoelectric module can be made thin by having a first substrate and a second substrate with different surface areas to raise the heat-dissipation effectiveness.
    Type: Application
    Filed: May 3, 2019
    Publication date: August 22, 2019
    Inventors: Yong Sang CHO, Sang Gon KIM, Sook Hyun KIM, Chae Hoon KIM, Myoung Lae ROH, Jong Bae SHIN, Boone WON, Jong Min LEE
  • Patent number: 10326070
    Abstract: The embodiments of the present invention relate to a thermoelectric element and a thermoelectric module used for cooling, and the thermoelectric module can be made thin by having a first substrate and a second substrate with different surface areas to raise the heat-dissipation effectiveness.
    Type: Grant
    Filed: March 7, 2018
    Date of Patent: June 18, 2019
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Yong Sang Cho, Sang Gon Kim, Sook Hyun Kim, Chae Hoon Kim, Myoung Lae Roh, Jong Bae Shin, Boone Won, Jong Min Lee
  • Publication number: 20190153159
    Abstract: The present disclosure relates to a polyimide-based block copolymer film. The polyimide-based block copolymer film according to the present disclosure exhibits excellent an ultraviolet shielding property to be suitably used for substrates for displays, protective films for displays, touch panels, and the like.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 23, 2019
    Applicant: LG CHEM, LTD.
    Inventors: Duk Hun JANG, Byung Guk KIM, Young Sik EOM, Sung Yeol CHOI, Sang Gon KIM, Hyung Sam CHOI
  • Publication number: 20190010291
    Abstract: The present disclosure relates to a polyimide-based block copolymer and a polyimide-based film including the same. The polyimide-based block copolymer according to the present disclosure makes it possible to provide a polyimide-based film exhibiting excellent mechanical properties while being colorless and transparent. The polyimide-based film may be used as a cover film of various flexible or foldable devices.
    Type: Application
    Filed: June 22, 2017
    Publication date: January 10, 2019
    Inventors: Sung Yeol CHOI, Byung Guk KIM, Sang Gon KIM, Duk Hun JANG, Hyung Sam CHOI
  • Patent number: 10170201
    Abstract: A data storage device includes a memory device including memory regions classified into a plurality of memory groups each corresponding to a plurality read bias voltage groups; and a controller suitable for: performing for a target memory region a read retry operation based on a first read bias voltage group corresponding to a memory group in which the target memory region is included, and performing an additional read retry operation based on at least one of remaining read bias voltage groups excluding the first read bias voltage group among the plurality of read bias voltage groups, according to a result of the read retry operation.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: January 1, 2019
    Assignee: SK Hynix Inc.
    Inventor: Sang Gon Kim