Patents by Inventor Jong-In Choi

Jong-In 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: 11649515
    Abstract: The purpose of one aspect of the present invention is to provide: a thick steel plate capable of removing a conventional normalizing treatment required for ensuring toughness low temperature and cryogenic environments, and having properties equal to or better than those of a conventional steel subjected to the normalizing treatment; and a method for manufacturing the method.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: May 16, 2023
    Assignee: POSCO CO., LTD
    Inventors: Mo-Chang Kang, Jong-In Choi
  • Publication number: 20200318215
    Abstract: The present invention relates to a steel sheet for shielding a magnetic field, which is used for a medical magnetic resonance imaging (MRI) room wall body and the like, and a method for manufacturing the same.
    Type: Application
    Filed: December 19, 2018
    Publication date: October 8, 2020
    Inventors: Tae-Il SO, Ho-Kyung SHIM, Chon-Kue KIM, Jong-In CHOI
  • Publication number: 20190316219
    Abstract: The purpose of one aspect of the present invention is to provide: a thick steel plate capable of removing a conventional normalizing treatment required for ensuring toughness low temperature and cryogenic environments, and having properties equal to or better than those of a conventional steel subjected to the normalizing treatment; and a method for manufacturing the method.
    Type: Application
    Filed: December 20, 2017
    Publication date: October 17, 2019
    Inventors: Mo-Chang Kang, Jong-In Choi
  • Publication number: 20180162996
    Abstract: The present invention relates to a polyketone resin composition which is prepared from a polyketone co-polymer comprising repeating units represented by general formulae (1) and (2) below and exhibits excellent wear resistance and impact resistance, and thus can be used for gears, microwave containers, cams, helmet gears for electric welding, plastic boards, yarn guides, bedding cleaner cams, office supplies, window drums for automobiles, sun visor retainers, door frame inner covers for automobiles, safety belt jointers for automobiles, auto gear slides for automobiles, door latch housings for automobiles, slide guides for automobiles, switch shafts in heating, ventilation and air conditioning (HAVC) systems for automobiles, actuator gears for automobiles, trim mounting clips for automobiles, cup holders for automobiles, roof racks for automobiles, outside door handles for automobiles, air intake garnishes for automobiles, medical transportation trays, medical pipettes, refrigerator door closures, cellular ph
    Type: Application
    Filed: October 19, 2015
    Publication date: June 14, 2018
    Applicant: HYOSUNG CORPORATION
    Inventors: Jong In CHOI, Sung Kyoun YOON, Ka Young KIM, Seong Hwan KIM, Jong LEE
  • Publication number: 20170313820
    Abstract: The present invention relates to a polyketone copolymer consisting of repeating units represented by general formulae (3) and (4) below, and a mixture composition thereof. The present invention has excellent has barrier properties and thus can be used for vehicle fuel tanks, vehicle hydrogen tank liners, sealed food containers, etc. —(CH2CH2—CO)x—??(3) —(CH2CH(CH3)—CO)y—??(4) (wherein x and y denote the mol % of each of the general formulae (3) and (4) in a polymer).
    Type: Application
    Filed: October 16, 2015
    Publication date: November 2, 2017
    Applicant: HYOSUNG CORPORATION
    Inventors: Jong In CHOI, Sung Kyoun YOON
  • Publication number: 20170166743
    Abstract: The present invention relates to a polyketone resin composition and a method for manufacturing the same. The polyketone resin composition is prepared by mixing a polyketone terpolymer consisting of repeating units, represented by the following general formulas (1) and (2), with ABS, a glass fiber, a sulfonamide-based plasticizer and a mineral filler, and is applicable to various industrial fields requiring oil resistance, calcium chloride resistance, impact resistance, etc.
    Type: Application
    Filed: July 20, 2015
    Publication date: June 15, 2017
    Applicant: HYOSUNG CORPORATION
    Inventors: Sung Kyoun YOON, Jong LEE, Jong In CHOI, Kyung Tae CHO, Jong Chul HONG, Ka Young KIM
  • Publication number: 20170158851
    Abstract: The present invention relates to a polyketone resin composition and to a production method therefor; and relates to a polyketone copolymer having outstanding water resistance, moisture-absorption rate and shock resistance, characterised in that the polyketone copolymer comprises repeat units represented by general formulae (1) and (2) and has an intrinsic viscosity of between 1.0 and 2.0 dl/g. Because of the outstanding moisture-absorption rate and shock resistance, the present invention can be used in, inter alia, marine bolts, clips and holders, connectors, switches, bobbins, sludge-treatment chains, cable ties, automotive fuel injection ports, green juicer screws, office partition frames and box frames.
    Type: Application
    Filed: July 20, 2015
    Publication date: June 8, 2017
    Applicant: HYOSUNG CORPORATION
    Inventors: Jong In CHOI, Kyung Tae CHO, Sung Kyoun YOON, Seong Hwan KIM, Jong LEE, Ka Young KIM, Seung Jo BAEK
  • Publication number: 20130059332
    Abstract: The present invention relates to a process for the production of an aqueous glucose solution from maize or maize kernels. The invention also relates to a glucose solution obtainable by this process, and to its use for the production of organic compounds. The process according to the invention comprises: a) fractionating dry milling of maize kernels, where the maize kernels are separated into a maize-starch-comprising endosperm fraction and a high-oil germ fraction and, if appropriate, a bran fraction; b) enzymatic liquefaction and saccharification of the maize starch in an aqueous suspension of the endosperm fraction, which gives an aqueous glucose solution comprising maize gluten; and c) depletion of the maize gluten and, if appropriate, any bran present from the aqueous glucose solution.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 7, 2013
    Applicant: BASF SE
    Inventors: Matthias Boy, Jong-Kyu Choi, Jin Won Chung, Markus Lohscheidt, Jong In Choi, Jae Yeol Seo, Jörg Braun, Mo Se Kim, Sung Hyun Kim, Arno Kochner
  • Patent number: 8293504
    Abstract: The present invention relates to a process for the production of an aqueous glucose solution from maize or maize kernels. The invention also relates to a glucose solution obtainable by this process, and to its use for the production of organic compounds. The process according to the invention comprises: a) fractionating dry milling of maize kernels, where the maize kernels are separated into a maize-starch-comprising endosperm fraction and a high-oil germ fraction and, if appropriate, a bran fraction; b) enzymatic liquefaction and saccharification of the maize starch in an aqueous suspension of the endosperm fraction, which gives an aqueous glucose solution comprising maize gluten; and c) depletion of the maize gluten and, if appropriate, any bran present from the aqueous glucose solution.
    Type: Grant
    Filed: July 4, 2008
    Date of Patent: October 23, 2012
    Assignee: BASF SE
    Inventors: Matthias Boy, Jong-Kyu Choi, Jin Won Chung, Markus Lohscheidt, Jong In Choi, Jae Yeol Seo, Jörg Braun, Mo Se Kim, Sung Hyun Kim, Arno Kochner
  • Patent number: 7803897
    Abstract: The present invention relates to a process for preparing polyketone with improved catalytic activity and intrinsic viscosity, and specifically a process for preparing polyketone, using a mixed solvent of 40 to 60 mol % acetic acid and 40 to 60 mol % water, as a liquid medium, and the precursor of palladium chloride-1,3-bis[di(methoxyphenyl)phosphino]propane, as a catalyst component.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: September 28, 2010
    Assignee: Hyosung Corporation
    Inventors: Jean-Young Jang, Jong-In Choi, Hae-Souk Cho, Jae-Yoon Shim, Sung-Kyun Yoon, Heon-Su Kim, Toniolo Luigi, Vavasori Andrea
  • Publication number: 20100196964
    Abstract: The present invention relates to a process for the production of an aqueous glucose solution from maize or maize kernels. The invention also relates to a glucose solution obtainable by this process, and to its use for the production of organic compounds. The process according to the invention comprises: a) fractionating dry milling of maize kernels, where the maize kernels are separated into a maize-starch-comprising endosperm fraction and a high-oil germ fraction and, if appropriate, a bran fraction; b) enzymatic liquefaction and saccharification of the maize starch in an aqueous suspension of the endosperm fraction, which gives an aqueous glucose solution comprising maize gluten; and c) depletion of the maize gluten and, if appropriate, any bran present from the aqueous glucose solution.
    Type: Application
    Filed: July 4, 2008
    Publication date: August 5, 2010
    Applicant: BASF SE
    Inventors: Matthias Boy, Jong-Kyu Choi, Jin Won Chung, Markus Lohscheidt, Jong In Choi, Jai Yeol Seo, Jörg Braun, Mo Se Kim, Sung-Hyun Kim, Arno Kochner
  • Patent number: 7768837
    Abstract: A flash memory device and a method of programming a flash memory device include selecting bit lines connected to program cells of multiple memory cells coupled to a selected word line. The selected bit lines are driven to a bit line program voltage through a write driver circuit connected to first ends of the selected bit lines. The selected bit lines are also driven to the bit line program voltage through a bit line detecting/driving circuit connected to second ends of the selected bit lines. The bit line detecting/driving circuit activates the selected bit lines synchronously with voltage variations of the selected bit lines.
    Type: Grant
    Filed: October 12, 2007
    Date of Patent: August 3, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-In Choi, Dong-Woo Lee
  • Patent number: 7719385
    Abstract: Disclosed herein are a method and divider for dividing power between and supplying the parts of the power to respective radiation elements of an array antenna, and an antenna device using the divider. The division method includes the steps of dividing power, applied to a feeding unit, into two parts at a first stage of division, and supplying a first of the two parts to at least one central radiation element, and dividing a second of the two parts and supplying sub-parts of the second part to respective peripheral radiation elements, thereby supplying relatively high power to the central radiation element and relatively low power to the peripheral radiation elements.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: May 18, 2010
    Assignee: Sunwoo Communication Co., Ltd
    Inventors: Jong-In Choi, Young-Jai Kim, Dae-Sung Kim, Yu-Rin Kim
  • Patent number: 7489363
    Abstract: The present invention provides a method of scaling a partial area of a main picture, by which the partial area of the main picture can be magnified in a manner of scaling the partial area of the picture displayed on a screen like using a virtual magnifier without employing a separate expensive hardware resource. The present invention comprises a first step of making a main scaler extract image data of the partial area to be scaled from full image data according to prescribed scaling information including magnification/reduction information for the partial area of a display picture, a second step of making a sub-scaler scale the extracted image data of the partial area at a prescribed rate, and a third step of overlaying the scaled image data of the partial area on the full image data provided from the main scaler.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: February 10, 2009
    Assignee: LG Electronics Inc
    Inventor: Jong In Choi
  • Patent number: 7460412
    Abstract: A method of post-programming a flash memory device includes the steps of: post-programming memory cells of a selected word line in a predetermined unit; determining, after incrementing an address for selecting the next word line, whether the incremented address matches one of reference addresses; and varying the post-programming unit of the selected memory cells whenever the incremented address matches one of reference addresses.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: December 2, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Doo-Sub Lee, Jong-In Choi
  • Publication number: 20080161531
    Abstract: The present invention relates to a process for preparing polyketone with improved catalytic activity and intrinsic viscosity, and specifically a process for preparing polyketone, using a mixed solvent of 40 to 60 mol % acetic acid and 40 to 60 mol % water, as a liquid medium, and the precursor of palladium chloride-1,3-bis[di(methoxyphenyl)phosphino]propane, as a catalyst component.
    Type: Application
    Filed: July 12, 2007
    Publication date: July 3, 2008
    Applicant: HYOSUNG Corporation
    Inventors: Jean-Young Jang, Jong-In Choi, Hae-Souk Cho, Jae-Yoon Shim, Sung-Kyun Yoon, Heon-Su Kim, Toniolo Luigi, Vavasori Andrea
  • Publication number: 20080136553
    Abstract: Disclosed herein are a method and divider for dividing power between and supplying the parts of the power to respective radiation elements of an array antenna, and an antenna device using the divider. The division method includes the steps of dividing power, applied to a feeding unit, into two parts at a first stage of division, and supplying a first of the two parts to at least one central radiation element, and dividing a second of the two parts and supplying sub-parts of the second part to respective peripheral radiation elements, thereby supplying relatively high power to the central radiation element and relatively low power to the peripheral radiation elements.
    Type: Application
    Filed: August 7, 2007
    Publication date: June 12, 2008
    Inventors: Jong-In Choi, Young-Jai Kim, Dae-Sung Kim, Yu-Rin Kim
  • Publication number: 20080123431
    Abstract: A flash memory device and a method of programming a flash memory device include selecting bit lines connected to program cells of multiple memory cells coupled to a selected word line. The selected bit lines are driven to a bit line program voltage through a write driver circuit connected to first ends of the selected bit lines. The selected bit lines are also driven to the bit line program voltage through a bit line detecting/driving circuit connected to second ends of the selected bit lines. The bit line detecting/driving circuit activates the selected bit lines synchronously with voltage variations of the selected bit lines.
    Type: Application
    Filed: October 12, 2007
    Publication date: May 29, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jong-In CHOI, Dong-Woo LEE
  • Patent number: 7372733
    Abstract: A non-volatile semiconductor memory device comprises a plurality of memory sectors arranged in different memory banks having different bulk regions. The memory cells can be erased using a first mode erase operation, which determines different erase pass voltages for the respective memory sectors by successively increasing a bank voltage applied to each sector until the number of failed cells in each sector falls below a first failed cell threshold value, and a second mode erase operation, which applies the different erase pass voltages to the respective memory sectors for successively increasing periods of time until the number of failed cells in each sector falls below a second failed cell threshold value.
    Type: Grant
    Filed: November 14, 2006
    Date of Patent: May 13, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong In Choi, Jae Yong Jeong
  • Patent number: 7372738
    Abstract: A NOR flash memory device comprises a memory cell array, a row selection circuit adapted to drive wordlines in the memory cell array with a wordline voltage during an erase operation, and an erase voltage generating circuit adapted to generate an erase voltage as the wordline voltage during the erase operation. The erase voltage generating circuit includes a discharging circuit receiving a high voltage that is regularly maintained irrespective of variations in a power voltage, and discharging the erase voltage supplied from the wordline during an erasing recovery period of the erase operation.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: May 13, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-In Choi, Ji-Ho Cho