Patents by Inventor Sang-kyu Choi
Sang-kyu 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).
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Patent number: 11967269Abstract: A scan driver includes: a first transistor having a first electrode coupled to an output scan line, a second electrode coupled to a first power line, and a gate electrode coupled to a first node; a second transistor having a first electrode coupled to a first clock line, a second electrode coupled to the output scan line, and a gate electrode coupled to a second node; a third transistor having a first electrode coupled to the first node, a second electrode coupled to a first input scan line, and a gate electrode coupled to a second clock line; and a fourth transistor having a first electrode coupled to the second node and a second electrode and a gate electrode, which are coupled to a second input scan line, wherein the first input scan line and the second input scan line are different from each other.Type: GrantFiled: October 4, 2022Date of Patent: April 23, 2024Assignee: Samsung Display Co., Ltd.Inventors: Chul Kyu Kang, Sung Hwan Kim, Soo Hee Oh, Dong Sun Lee, Sang Moo Choi
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Publication number: 20240120616Abstract: A secondary battery includes an electrode assembly having a positive electrode provided with a positive electrode tab, a separator, and a negative electrode provided with a negative electrode tab, the positive electrode, the separator, and the negative electrode being wound, the electrode assembly having a core part at a center thereof; a can configured to receive the electrode assembly therein, the negative electrode tab being connected to the can; a cap assembly coupled to an opening of the can, the positive electrode tab being connected to the cap assembly; and a reinforcing member provided on an end of the separator exposed beyond the positive electrode or the negative electrode to prevent heat of the positive electrode tab or the negative electrode tab from being transferred to the separator.Type: ApplicationFiled: April 19, 2022Publication date: April 11, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Soon Kwan KWON, Su Taek JUNG, Seok Hoon JANG, Hyeok JEONG, Sang Ho BAE, Byeong Kyu LEE, Seong Won CHOI, Min Wook KIM, Yong Jun LEE
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Patent number: 11939698Abstract: A wafer manufacturing method, an epitaxial wafer manufacturing method, and a wafer and epitaxial wafer manufactured thereby, are provided. The wafer manufacturing method enables the manufacture of a wafer with a low density of micropipe defects and minimum numbers of particles and scratches. The epitaxial wafer manufacturing method enables the manufacture of an epitaxial wafer that has low densities of defects such as downfall, triangular, and carrot defects, exhibits excellent device characteristics, and improves the yield of devices.Type: GrantFiled: November 3, 2020Date of Patent: March 26, 2024Assignee: SENIC INC.Inventors: Jong Hwi Park, Jung-Gyu Kim, Eun Su Yang, Byung Kyu Jang, Jung Woo Choi, Yeon Sik Lee, Sang Ki Ko, Kap-Ryeol Ku
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Publication number: 20240091759Abstract: Disclosed herein is a method of depositing a transition metal single-atom catalyst including preparing a carbon carrier, and depositing a transition metal single-atom catalyst on the carbon carrier, in which the carbon carrier is surface-treated by an oxidation process, and wherein the deposition is carried out by an arc plasma process.Type: ApplicationFiled: September 15, 2023Publication date: March 21, 2024Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGYInventors: Jong Min KIM, Sang Hoon KIM, Chang Kyu HWANG, Seung Yong LEE, So Hye CHO, Jae Won CHOI
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Publication number: 20240076799Abstract: A wafer manufacturing method, an epitaxial wafer manufacturing method, and a wafer and epitaxial wafer manufactured thereby, are provided. The wafer manufacturing method enables the manufacture of a wafer with a low density of micropipe defects and minimum numbers of particles and scratches. The epitaxial wafer manufacturing method enables the manufacture of an epitaxial wafer that has low densities of defects such as downfall, triangular, and carrot defects, exhibits excellent device characteristics, and improves the yield of devices.Type: ApplicationFiled: November 1, 2023Publication date: March 7, 2024Applicant: SENIC INC.Inventors: Jong Hwi PARK, Jung-Gyu KIM, Eun Su YANG, Byung Kyu JANG, Jung Woo CHOI, Yeon Sik LEE, Sang Ki KO, Kap-Ryeol KU
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Patent number: 11462606Abstract: A display device includes a display panel and a signal transmission film including a first extension portion, a second extension portion, and a first dummy pattern. The signal transmission film is connected to one side of the display panel. The first extension portion extends in a first direction, and a first contact hole is formed at a first side of the first extension portion. The second extension portion extends from the first side of the first extension portion in a second direction which is different from the first direction. The first dummy pattern is disposed adjacent to the first contact hole at the first side.Type: GrantFiled: September 3, 2020Date of Patent: October 4, 2022Assignee: Samsung Display Co., Ltd.Inventors: Sang Kyu Choi, Su Jin Jung, Yeong Bong Kang, Seong Sik Ahn, Ki Chang Lee, Min Hyuk Im, Myoung-Ha Jeon
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Publication number: 20220275491Abstract: Provided are stainless steel for a polymer fuel cell separator and a method of manufacturing the stainless steel, in which a surface modification technique based on wet processing is applied to a surface of stainless steel used for parts such as an anode and a cathode, etc., of a stack that generates electricity, thereby improving corrosion resistance and electric conductivity, and preventing moisture from being formed.Type: ApplicationFiled: December 26, 2021Publication date: September 1, 2022Inventors: Sang Kyu CHOI, Sang Heon CHO, Jun Hee LIM, Sung Moon KIM, Kyung Soo CHOI, Yeon Soo JEONG, Jae Ho LEE, Hyun Uk IM
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Publication number: 20210391612Abstract: A battery pack according to one embodiment of the present disclosure includes: a housing in which at least one battery cell or battery module is built, a heat exchange member provided inside the housing to cool the battery cell or the battery module, a refrigerant inflow port and a refrigerant outflow port connected to the heat exchange member, and a rapid cooling member installed in the refrigerant inflow port.Type: ApplicationFiled: November 13, 2019Publication date: December 16, 2021Applicant: LG Chem, Ltd.Inventors: Jae Ho Um, Sang Kyu Choi, Sukmyung Roh
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Publication number: 20210159302Abstract: A display device includes a display panel and a signal transmission film including a first extension portion, a second extension portion, and a first dummy pattern. The signal transmission film is connected to one side of the display panel. The first extension portion extends in a first direction, and a first contact hole is formed at a first side of the first extension portion. The second extension portion extends from the first side of the first extension portion in a second direction which is different from the first direction. The first dummy pattern is disposed adjacent to the first contact hole at the first side.Type: ApplicationFiled: September 3, 2020Publication date: May 27, 2021Inventors: Sang Kyu CHOI, Su Jin JUNG, Yeong Bong KANG, Seong Sik AHN, Ki Chang LEE, Min Hyuk IM, Myoung-Ha JEON
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Patent number: 10973620Abstract: In a biomimetic artificial muscle module, a biomimetic artificial muscle assembly having the biomimetic artificial muscle module, and a method of controlling the biomimetic artificial muscle module, the biomimetic artificial muscle module includes an operating part, an elastic part, a driving part, a locking part and first and second sensors. The operating part contracts or relaxes along a longitudinal direction. The elastic part is connected to a first end of the operating part, and behaves elastically behave according to an external force. The driving part is connected to a second end of the operating part, and drives the operating part to be contracted or relaxed. The locking part selectively blocks a length of the operating part from being changed. The first and second sensors respectively sense the elastic part and the operating part.Type: GrantFiled: January 31, 2019Date of Patent: April 13, 2021Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Sang-Kyu Choi, Hyun Joon Kwon, Jae Keun Shim, Young-Su Son, Cheol-hoon Park, Seyoung Kim
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Patent number: 10792806Abstract: In a driving device of an artificial muscle module and a driving method thereof, the driving device includes a fluid tank unit, a fluid providing line, a fluid collecting line, a circulation pump unit, a temp control unit and a fluid distributing unit. The fluid providing line includes high temp and low temp water tanks. The fluid providing line connects a first side of the artificial muscle module to the fluid tank unit. The fluid collecting line connects a second side of the artificial muscle module to the fluid tank unit. The circulation pump unit is positioned at least one of the fluid providing line and the fluid collecting line. The temp control unit controls temperature of the fluid. The fluid distributing unit is positioned at the fluid collecting line, and distributes the fluid in the fluid collecting line.Type: GrantFiled: November 30, 2017Date of Patent: October 6, 2020Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-hoon Park, Young-su Son, Sang-yong Ham, Sang-kyu Choi, Doo-euy Hong, Kyung-jun Choi, Seong-joon Park
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Publication number: 20200246129Abstract: In a biomimetic artificial muscle module, a biomimetic artificial muscle assembly having the biomimetic artificial muscle module, and a method of controlling the biomimetic artificial muscle module, the biomimetic artificial muscle module includes an operating part, an elastic part, a driving part, a locking part and first and second sensors. The operating part contracts or relaxes along a longitudinal direction. The elastic part is connected to a first end of the operating part, and behaves elastically behave according to an external force. The driving part is connected to a second end of the operating part, and drives the operating part to be contracted or relaxed. The locking part selectively blocks a length of the operating part from being changed. The first and second sensors respectively sense the elastic part and the operating part.Type: ApplicationFiled: January 31, 2019Publication date: August 6, 2020Inventors: Sang-Kyu CHOI, Hyun Joon KWON, Jae Keun SHIM, Young-Su SON, Cheol-hoon PARK, Seyoung KIM
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Patent number: 10727471Abstract: A method for manufacturing a lithium ion polymer battery is provided in which in injecting electrolyte into a lithium ion polymer battery, the battery cell is immersed in an electrolyte impregnation bath to allow the electrolyte to be impregnated into the cell. The electrolyte can be impregnated simultaneously, and as the battery cell is activated, the electrolyte is settled down in the interior of the battery cell. Thus, when the battery cell is sealed, a phenomenon that the electrolyte is present at the sealed portion can be prevented.Type: GrantFiled: December 29, 2010Date of Patent: July 28, 2020Assignee: LG Chem, Ltd.Inventors: Sang-Kyu Choi, Kwang Ho Yoo, Young Joon Shin
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Patent number: 10504309Abstract: The present invention relates to a method for preventing a relay-attack on a smart key system, and in particular, provides an advantage of preventing a vehicle and equipment stored inside the vehicle from being stolen by using predetermined information transmitted and received when the SMK UNIT of the vehicle and a FOB Key wirelessly communicate with each other and enabling a holder of the FOB Key to make the relay-attack once the holder secures visibility from the vehicle.Type: GrantFiled: November 23, 2015Date of Patent: December 10, 2019Assignee: SEOYON ELECTRONICS CO., LTD.Inventors: Sang Kyu Choi, Shim Soo Kim, Gyu Ho Kim
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Patent number: 10324568Abstract: A touch panel includes a touch electrode disposed on a substrate, the touch electrode including a metal layer; a phase matching layer disposed on the metal layer; and a thin film layer disposed on the phase matching layer.Type: GrantFiled: April 18, 2016Date of Patent: June 18, 2019Assignee: Samsung Display Co., Ltd.Inventors: Sang Youn Han, Kyung Seop Kim, Sung Kyun Park, Sang Kyu Choi
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Publication number: 20190152052Abstract: In a driving device of an artificial muscle module and a driving method thereof, the driving device includes a fluid tank unit, a fluid providing line, a fluid collecting line, a circulation pump unit, a temp control unit and a fluid distributing unit. The fluid providing line includes high temp and low temp water tanks. The fluid providing line connects a first side of the artificial muscle module to the fluid tank unit. The fluid collecting line connects a second side of the artificial muscle module to the fluid tank unit. The circulation pump unit is positioned at least one of the fluid providing line and the fluid collecting line. The temp control unit controls temperature of the fluid. The fluid distributing unit is positioned at the fluid collecting line, and distributes the fluid in the fluid collecting line.Type: ApplicationFiled: November 30, 2017Publication date: May 23, 2019Inventors: Cheol-hoon PARK, Young-su SON, Sang-yong HAM, Sang-kyu CHOI, Doo-euy HONG, Kyung-jun CHOI, Seong-joon PARK
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Patent number: 10001165Abstract: The present invention relates to a thrust magnetic bearing for bias compensation, and more particularly, to a thrust magnetic bearing for bias compensation in which annular permanent magnets and electromagnets are disposed to face each other with respect to a levitated member and the permanent magnets are formed to be asymmetrical in lengths thereof in an axial direction to thus exert an attractive force for compensating for a bias by the difference in the lengths of the permanent magnets in the axial direction to compensate for the bias, and a current supply for bias magnetic flux is not required, saving energy.Type: GrantFiled: March 31, 2015Date of Patent: June 19, 2018Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Cheol-hoon Park, Sang-Kyu Choi, Sang-Yong Ham
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Patent number: 9977553Abstract: A touch panel includes a substrate, a first signal line, and a second signal line. The first signal line extends on the substrate in a first direction and includes a first height from the substrate. The second signal line extends on the substrate in a second direction crossing the first direction and includes a second height from the substrate. The second signal line is disposed in the same layer as the first signal line. The second height is greater than the first height.Type: GrantFiled: January 27, 2016Date of Patent: May 22, 2018Assignee: Samsung Display Co., Ltd.Inventors: Jung Ha Son, Jae-Wook Kang, Kyung Seop Kim, Sung Kyun Park, Sang Kyu Choi, Yong Woo Park, Sang Youn Han
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Patent number: 9946420Abstract: A touch screen panel includes a substrate including an active area, a non-active area at the periphery of the active area, and a contact area between the active area and the non-active area, sensing electrodes disposed in the active area, connecting lines disposed in the non-active area and the contact area and electrically connected to the sensing electrodes, and a metal capping layer disposed in the contact area, in which the sensing electrodes include a first overcoating layer disposed on the substrate as a conductor layer, and a second overcoating layer disposed on the first overcoating layer, the connecting lines include the first overcoating layer, the second overcoating layer, and a metal line layer disposed on the second overcoating layer, and the metal capping layer couple the metal line layer to the first overcoating layer through a contact hole to expose the first overcoating layer in the contact area.Type: GrantFiled: December 28, 2015Date of Patent: April 17, 2018Assignee: Samsung Display Co., Ltd.Inventors: Sun Haeng Cho, Jae Neung Kim, Sung Kyun Park, Sang Kyu Choi, Kyung Seop Kim, Ki Hyun Cho
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Patent number: 9916057Abstract: A touch panel, a display device having the same, and a method of manufacturing the touch panel are disclosed. In one aspect, the touch panel includes a base substrate and a first sensing portion extending in a first direction and formed over the base substrate. The first sensing portion including a plurality of first fine lines defining a plurality of spaces therebetween. The touch panel also includes a second sensing portion extending in a second direction crossing the first direction and formed over the base substrate and a first insulating layer covering the first fine lines. The first insulating layer defines a plurality of openings therein corresponding to the spaces between the first fine lines. The second sensing portion crosses the first sensing portion with the first insulating layer interposed therebetween.Type: GrantFiled: April 27, 2016Date of Patent: March 13, 2018Assignee: Samsung Display Co., Ltd.Inventors: Sung Kyun Park, Jae Wook Kang, Kyung Seop Kim, Jung Ha Son, Sang Kyu Choi, Yong Woo Park, Sang Youn Han