Patents by Inventor Sung Min Choi

Sung Min 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: 11362299
    Abstract: A cover window including a flat portion and a curved portion extending from an end of the flat portion. The curved portion of the cover window includes a first section, a second section, and a third section, where the second section is disposed between the first section and the third section, an inner surface of the cover window contacts with an adhesive layer, a first radius of curvature having an average value of a radius of curvature of the inner surface of the cover window in the first section is greater than a second radius of curvature having an average value of a radius of curvature in the second section, and a third radius of curvature having an average value of a radius of curvature of the inner surface of the cover window in the third section is greater than the second radius of curvature.
    Type: Grant
    Filed: June 2, 2020
    Date of Patent: June 14, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Min Choi, Wook Jae Lee, Han Ki Park, Nam Seok Baik, Young Myung Lee
  • Publication number: 20210194064
    Abstract: Disclosed are a separator for secondary batteries with enhanced stability and a method of manufacturing the separator. The separator can prevent self-discharge which may occur when a porous non-woven fabric material is used for a separator; can perform a shutdown function at a high temperature of 200° C. or less; and can avoid even under harsh conditions of high temperatures, deterioration in stability caused by internal short-circuit of positive and negative electrodes. In particular, the separator for secondary batteries of the present invention includes a porous non-woven fabric material impregnated with a baroplastic polymer powder and pores of the porous non-woven fabric material are filled with the baroplastic polymer powder by pressing an assembly of the secondary battery.
    Type: Application
    Filed: March 4, 2021
    Publication date: June 24, 2021
    Inventors: Yeol Mae Yeo, Ki Seok Koh, Yoon Sung Lee, Seung Min Oh, Hong Seok Min, Sung Min Choi
  • Patent number: 11024926
    Abstract: A leadtab assembly may include an electrode non-coating portion having a plurality of stacked electrodes collected inside a battery cell, a leadtab for forming an electrical path to the outside of the battery cell, and a bonding portion for mutually bonding the electrode non-coating portion and the leadtab, wherein a cutting prevention portion is elastically deformed by the force applied to the electrode non-coating portion as the electrode is expanded at the bonding point located between the bonding portion and the leadtab.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: June 1, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang-Joon Lee, Dong-Hui Kim, Sung-Min Choi, Kyo-Min Shin, Sung-Hoon Lim, Seung-Ho Ahn
  • Patent number: 10964977
    Abstract: Disclosed are a separator for secondary batteries with enhanced stability and a method of manufacturing the separator. The separator can prevent self-discharge which may occur when a porous non-woven fabric material is used for a separator; can perform a shutdown function at a high temperature of 200° C. or less; and can avoid even under harsh conditions of high temperatures, deterioration in stability caused by internal short-circuit of positive and negative electrodes. In particular, the separator for secondary batteries of the present invention includes a porous non-woven fabric material impregnated with a baroplastic polymer powder and pores of the porous non-woven fabric material are filled with the baroplastic polymer powder by pressing an assembly of the secondary battery.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: March 30, 2021
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Yeol Mae Yeo, Ki Seok Koh, Yoon Sung Lee, Seung Min Oh, Hong Seok Min, Sung Min Choi
  • Publication number: 20210057669
    Abstract: A cover window including a flat portion and a curved portion extending from an end of the flat portion. The curved portion of the cover window includes a first section, a second section, and a third section, where the second section is disposed between the first section and the third section, an inner surface of the cover window contacts with an adhesive layer, a first radius of curvature having an average value of a radius of curvature of the inner surface of the cover window in the first section is greater than a second radius of curvature having an average value of a radius of curvature in the second section, and a third radius of curvature having an average value of a radius of curvature of the inner surface of the cover window in the third section is greater than the second radius of curvature.
    Type: Application
    Filed: June 2, 2020
    Publication date: February 25, 2021
    Inventors: Sung Min CHOI, Wook Jae Lee, Han Ki Park, Nam Seok Baik, Young Myung Lee
  • Publication number: 20200347093
    Abstract: The present invention relates to an improved method of purifying an immunoglobulin, and more particularly to a method of purifying an immunoglobulin which is capable of sufficiently removing impurities from an immunoglobulin-containing plasma protein sample through a simple process, comprising a single anion-exchange chromatography and a single cation-exchange chromatography.
    Type: Application
    Filed: October 26, 2018
    Publication date: November 5, 2020
    Inventors: Soo-kwang KIM, Kyung Hyun BOO, Kang Yun SEO, Sung Min CHOI, Jeong Hye YOON, Jin Hyun PARK, Yeon Hui KIM
  • Patent number: 10581047
    Abstract: Provided are a method of manufacturing an all-solid battery and an all-solid battery manufactured by the method. The all-solid batter may have edge portions that can be more effectively insulated. In particular, the all-solid battery may include a cathode layer, an anode layer, and an electrolyte layer, a first insulator disposed at an edge of the cathode layer and a second insulator disposed between the cathode layer and the first insulator, thereby forming a membrane of the second insulator for preventing contact between the cathode layer and the anode layer in pressing.
    Type: Grant
    Filed: December 4, 2017
    Date of Patent: March 3, 2020
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang Jin Park, Jung Young Cho, Sung Min Choi, Shin Kook Kong
  • Patent number: 10414816
    Abstract: The present invention relates to a method for purifying an immunoglobulin, and more particularly, to a method for purifying an immunoglobulin, which comprises: dissolving immunoglobulin-containing plasma protein fraction I+II+III or fraction II+III; adding caprylate to the solution to cause precipitation; performing dialysis and concentration after removal of the precipitate; performing anion exchange resin and ceramic cation exchange resin purification processes to effectively remove a solvent and detergent added to inactivate viruses; and performing elution while maintaining salt concentration at a constant level to maintain the immunoglobulin polymer content at a low level.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: September 17, 2019
    Assignee: GREEN CROSS HOLDINGS CORPORATION
    Inventors: Dong-Hwarn Park, Ki-Hwan Son, Kang Yun Seo, Sung Min Choi, Gun Sul Lee, Ki-Yong Kim
  • Publication number: 20190267602
    Abstract: A leadtab assembly may include an electrode non-coating portion having a plurality of stacked electrodes collected inside a battery cell, a leadtab for forming an electrical path to the outside of the battery cell, and a bonding portion for mutually bonding the electrode non-coating portion and the leadtab, wherein a cutting prevention portion is elastically deformed by the force applied to the electrode non-coating portion as the electrode is expanded at the bonding point located between the bonding portion and the leadtab.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 29, 2019
    Applicants: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sang-Joon LEE, Dong-Hui Kim, Sung-Min Choi, Kyo-Min Shin, Sung-Hoon Lim, Seung-Ho Ahn
  • Publication number: 20190255520
    Abstract: The present invention relates to a catalyst composition comprising a gold nanoparticle superlattice embedded in hierarchical porous silica and a method for manufacturing the same. The catalyst composition comprising a gold nanoparticle superlattice embedded in hierarchical porous silica according to the present invention comprises micropores and mesopores in the superlattice, so that these pores are channelized to allow the rapid access of reactants to surfaces of gold nanoparticles, and the catalyst composition is very structurally stable and has excellent catalytic activity, and thus has an effect of exhibiting a CO conversion rate of 100% at room temperature.
    Type: Application
    Filed: February 28, 2017
    Publication date: August 22, 2019
    Inventors: Sung Min CHOI, Shin Hyun KANG
  • Patent number: 10340500
    Abstract: A pouch battery having improved overcharging safety includes a CID interrupting an electrical connection between an electrode assembly and a lead tab when the pouch is expanded. When the pouch is expanded, the CID discharges gas generated inside the pouch to the outside, and at the time of overcharging a secondary battery, the CID interrupts a flow of current introduced into the secondary battery and discharges the gas generated due to the overcharging to the outside of the pouch, thereby reducing an ignition risk and improving the overcharging safety.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: July 2, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Min Choi, Ik Kyu Kim, Seung Ho Ahn, Hong Seok Min
  • Patent number: 10320037
    Abstract: An overcharge safety device includes a switch electrically connecting a lead tap of a battery cell with a bus bar, and includes a guide member connected with the switch and movable as a pouch of the battery cell swells. As the pouch of the battery cell swells, the guide member moves toward the bus bar to disconnect the switch from the lead tap.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: June 11, 2019
    Assignees: Hyundai Motor Company, Kia Motors Corporation
    Inventors: Sung Min Choi, Hong Seok Min, Oh Min Kwon, Ik Kyu Kim, Seung Ho Ahn
  • Publication number: 20190151825
    Abstract: A metal/support catalyst for conversion of carbon dioxide to methane contains a metal including a transition metal and a support containing a perovskite-type oxide, on which the metal is supported. The metal/support catalyst for conversion of carbon dioxide to methane is capable of increasing the catalytic activity of the Sabatier reaction by promoting the formation of hydroxide ions and helping the production of formate, which is a reaction intermediate in the conversion of carbon dioxide to methane, without using a precious metal. In addition, it is capable of conducting the reaction stably for a long period of time.
    Type: Application
    Filed: June 28, 2018
    Publication date: May 23, 2019
    Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyoungchul KIM, Byung Kook KIM, Hae-Weon LEE, Jong Ho LEE, Ji-Won SON, Kyung Joong YOON, Sung Jun CHOI, Sung Min CHOI
  • Patent number: 10287315
    Abstract: The present invention relates to a method for purifying an immunoglobulin, and more particularly, to a method for purifying an immunoglobulin, which comprises: dialyzing and concentrating an immunoglobulin-containing plasma protein fraction II paste; removing thrombotic substances from the dialyzed and concentrated fraction by a purification process using ceramic cation exchange resin; and performing elution while maintaining salt concentration at a constant level to maintain the polymer content of the immunoglobulin at a low level. When the immunoglobulin purification method according to the present invention is used, the efficiency with which impurities and thrombotic substances are removed can be increased and the polymer content of the immunoglobulin can be maintained, and thus a stable immunoglobulin with improved quality can be produced.
    Type: Grant
    Filed: March 11, 2014
    Date of Patent: May 14, 2019
    Assignee: GREEN CROSS HOLDINGS CORPORATION
    Inventors: Ki-Hwan Son, Yong Kang, Dong-Hwarn Park, Sung Min Choi, Kang Yun Seo, Ki-Yong Kim
  • Publication number: 20190131603
    Abstract: Provided are a method of manufacturing an all-solid battery and an all-solid battery manufactured by the method. The all-solid batter may have edge portions that can be more effectively insulated. In particular, the all-solid battery may include a cathode layer, an anode layer, and an electrolyte layer, a first insulator disposed at an edge of the cathode layer and a second insulator disposed between the cathode layer and the first insulator, thereby forming a membrane of the second insulator for preventing contact between the cathode layer and the anode layer in pressing.
    Type: Application
    Filed: December 4, 2017
    Publication date: May 2, 2019
    Inventors: Sang Jin Park, Jung Young Cho, Sung Min Choi, Shin Kook Kong
  • Patent number: 10247476
    Abstract: The present invention relates to an improved food waste dryer utilizing waste heat, which includes a main frame, a dryer drum with an access door, to be positioned in the main frame, and an agitator positioned in the dryer drum. The improved food waste dryer comprises: a waste heat supply unit, a heating jacket positioned on the outer surface of the dryer drum, with a hot-air inlet to receive the waste heat from the waste heat supply unit and a hot-air outlet to discharge the waste heat inside the dryer drum, and a condensation system positioned in the main frame, to remove moisture included in the interior air of the dryer drum to increase the drying efficiency of the food waste dryer utilizing waste heat.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: April 2, 2019
    Assignees: NDT ENGINEERING & AEROSPACE CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION GYEONSANG NATIONAL UNIVERSITY
    Inventors: Ki Hyun Lim, Dae Bin Song, Dae Hong Jung, Sung Min Choi, Jong Hyun Yoon, Sang Hyun Park
  • Patent number: 10224534
    Abstract: A swelling current interrupt device (CID) includes: a battery unit connection terminal configured to be fixed to a pouch; and a lead tab connection terminal configured to be fixed to the pouch and electrically connected to the battery unit connection terminal, wherein any one of the battery unit connection terminal and the lead tab connection terminal is broken by an expansion force of the pouch which is generated when the pouch expands to interrupt the electrical connection between the battery unit connection terminal and the lead tab connection terminal.
    Type: Grant
    Filed: April 4, 2015
    Date of Patent: March 5, 2019
    Assignee: Hyundai Motor Company
    Inventors: Hong Seok Min, Ik Kyu Kim, Sung Min Choi, Seung Ho Ahn
  • Patent number: 10193189
    Abstract: The present disclosure relates to a battery cell. The battery cell includes: an electrode assembly; a pouch which wraps around the electrode assembly; an electrode tab extended from the electrode assembly; a lead tab attached to the electrode tab; and a current interrupt device which is configured to block reconnection of the lead tab and the electrode tab when the pouch is shrunk to return to an original position after being expanded, while blocking current flow by separating the lead tab and the electrode tab through the expansion of the pouch, when abnormal situation of battery cell occurs.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: January 29, 2019
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Min Choi, Ik Kyu Kim, Seung Ho Ahn, Hong Seok Min
  • Patent number: 10185453
    Abstract: A pressure sensor including a first conductor located in a pressure sensing region including a first sensing region and a second sensing region; and a second conductor spaced apart from the first conductor, the second conductor forming capacitance with the first conductor. The first conductor includes a first conductive part located in the first sensing region and a second conductive part located in the second sensing region. The area ratio of the second conductive part with respect to the second sensing region is different from the area ratio of the first conductive part with respect to the first sensing region.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: January 22, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung Min Choi, Dae Won Kim, Ik Jun Hong, Han Ki Park
  • Patent number: 10147916
    Abstract: A battery cell includes: an electrode assembly; a pouch case accommodating the electrode assembly therein; and an electrode lead including an outer lead protruding to an outside of the pouch case and an inner lead disposed between the outer lead and the electrode assembly, accommodated in the pouch case, bent plural times in a direction in which it connects the electrode assembly and the outer lead to each other, and cut by expansion force of the pouch case.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: December 4, 2018
    Assignee: Hyundai Motor Company
    Inventors: Seung Ho Ahn, Ik Kyu Kim, Woo Jin Shin, Hong Seok Min, Sung Min Choi, Jung Je Woo, Jung Young Cho, Se Jung Oh, Hoi Suk Han