Patents by Inventor Jae-Soon Choi
Jae-Soon 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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Publication number: 20190351190Abstract: The present disclosure relates to a catheter and a surgical medical device. The catheter includes at least: a first elastic member positioned at an end portion of the catheter, a second elastic member connected with the first elastic member, the second elastic member being curved with a first radius of curvature to protrude toward a first direction; a first wire connected with a first surface of the first elastic member, and configured to pull the catheter to bend the catheter in the first direction; a second wire connected with a second surface of the first elastic member, which is opposite to the first surface, and configured to pull the catheter to bend the catheter in a second direction; and a tube containing the first elastic member, the second elastic member, the first wire, and the second wire.Type: ApplicationFiled: August 2, 2019Publication date: November 21, 2019Applicants: THE ASAN FOUNDATION, UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATIONInventors: Jae Soon CHOI, Young Jin MOON, Gi Byoung NAM, Young Hak KIM, Zhenkai HU, Hoyul LEE
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Patent number: 10427137Abstract: A catalyst for treating fuel combustion exhaust, the catalyst comprising the following components: (i) an oxide support comprising silicon oxide, aluminum oxide, or combination of silicon and aluminum oxides; (ii) cerium oxide, zirconium oxide, or a combination of cerium and zirconium oxides in contact with said oxide support; and (iii) nanoparticles comprising elemental palladium or platinum in contact with at least component (ii), wherein said palladium or platinum is present in an amount of 0.1-4 wt. % by weight of the particles, and wherein surfaces of said nanoparticles of elemental palladium or palladium are exposed and accessible to said fuel combustion exhaust. Methods of producing and using the catalyst are also described.Type: GrantFiled: February 27, 2018Date of Patent: October 1, 2019Assignee: UT-Battelle, LLCInventors: Eleni Kyriakidou, Todd J. Toops, Jae-Soon Choi, Michael J. Lance, James E. Parks, II
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Publication number: 20190274732Abstract: The present disclosure relates to a tool for a closed reduction of a fracture. The tool includes at least: a winding portion having a winding shape; a support extending from the winding portion in a normal direction relative to a plane of the winding shape; and a handle extending from the support in the normal direction, and configured to be gripped.Type: ApplicationFiled: May 28, 2019Publication date: September 12, 2019Applicants: THE ASAN FOUNDATION, UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATIONInventors: Jae Soon CHOI, Young Jin MOON, Jong Woo CHOI, Ho Yul LEE
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Publication number: 20190262087Abstract: Provided are a device for driving a robot joint using a wire, an endoscope robot device including the same, and a medical robot device including the same. The device for driving a robot joint includes at least: a base; a first link coupled with the base, and configured to be rotatable relative to the base; a second link coupled with the first link, and configured to be rotatable relative to the first link; a plurality of wires positioned opposite each other, and configured to generate motions of the first and second links; and a wire drive device configured to drive the plurality of wires. Each of the plurality of wires is fixed, via the second link, on one of the base and the first link. Positions where the plurality of wires are fixed are asymmetrical to each other and have different heights to each other.Type: ApplicationFiled: May 15, 2019Publication date: August 29, 2019Applicants: THE ASAN FOUNDATION, UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATIONInventors: Young Jin MOON, Jae Soon CHOI, Hoyul LEE
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Publication number: 20180250659Abstract: A catalyst for treating fuel combustion exhaust, the catalyst comprising the following components: (i) an oxide support comprising silicon oxide, aluminum oxide, or combination of silicon and aluminum oxides; (ii) cerium oxide, zirconium oxide, or a combination of cerium and zirconium oxides in contact with said oxide support; and (iii) nanoparticles comprising elemental palladium or platinum in contact with at least component (ii), wherein said palladium or platinum is present in an amount of 0.1-4 wt. % by weight of the particles, and wherein surfaces of said nanoparticles of elemental palladium or palladium are exposed and accessible to said fuel combustion exhaust. Methods of producing and using the catalyst are also described.Type: ApplicationFiled: February 27, 2018Publication date: September 6, 2018Inventors: Eleni KYRIAKIDOU, Todd J. TOOPS, Jae-Soon CHOI, Michael J. Lance, James E. PARKS II
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Publication number: 20160287135Abstract: Provided is a biopsy needle with an electrode array which measures impedance for a plurality of biopsy points in real time, in which the needle includes electrode patterns configured by a plurality of electrode arrays on the surface, and the electrode patterns are spaced apart from each other along the top and bottom of the needle. According to the present invention, it is possible to selectively measure a predetermined tissue around the needle according to a direction of electrode formation and the number of electrodes while measuring impedance by using a plurality of electrodes by proposing a biopsy needle with a plurality of electrode arrays on a surface.Type: ApplicationFiled: April 2, 2015Publication date: October 6, 2016Inventors: In Kyu Park, Jae Ho Park, Sang Hyeok Kim, Joon Beom Seo, Nam Kug Kim, Jae Soon Choi
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Patent number: 9183955Abstract: A suspension type high-density storage rack for nuclear fuel assemblies may include a plurality of body parts each having a basket cell storing the corresponding nuclear fuel assembly and having a generally square tube-like shape elongated in a height direction thereof, a plurality of connection plates integrally connecting the basket cells adjacent to each other, while maintaining them at a predetermined distance, and a base plate fixedly coupling the undersides of the basket cells thereto; and a plurality of cap parts each closing the opened upper portion of the corresponding body part and suspending the corresponding nuclear fuel assembly therefrom.Type: GrantFiled: December 23, 2009Date of Patent: November 10, 2015Assignees: Korea Nuclear Fuel Co., Ltd., Kones Corporation Co., Ltd.Inventors: Se-Yong Shin, Chang-Hwan Hwang, Deuk-Yeon Kim, Jae-Soon Choi, Hung-Soon Chang, Jae-Ho Park, Han-Uk Jin
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Publication number: 20150125378Abstract: A method for synthesizing catalyst beads of bulk transmission metal carbides, nitrides and phosphides is provided. The method includes providing an aqueous suspension of transition metal oxide particles in a gel forming base, dropping the suspension into an aqueous solution to form a gel bead matrix, heating the bead to remove the binder, and carburizing, nitriding or phosphiding the bead to form a transition metal carbide, nitride, or phosphide catalyst bead. The method can be tuned for control of porosity, mechanical strength, and dopant content of the beads. The produced catalyst beads are catalytically active, mechanically robust, and suitable for packed-bed reactor applications. The produced catalyst beads are suitable for biomass conversion, petrochemistry, petroleum refining, electrocatalysis, and other applications.Type: ApplicationFiled: November 1, 2013Publication date: May 7, 2015Inventors: Jae Soon Choi, Beth L. Armstrong, Viviane Schwartz
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Patent number: 9012349Abstract: A method for synthesizing catalyst beads of bulk transmission metal carbides, nitrides and phosphides is provided. The method includes providing an aqueous suspension of transition metal oxide particles in a gel forming base, dropping the suspension into an aqueous solution to form a gel bead matrix, heating the bead to remove the binder, and carburizing, nitriding or phosphiding the bead to form a transition metal carbide, nitride, or phosphide catalyst bead. The method can be tuned for control of porosity, mechanical strength, and dopant content of the beads. The produced catalyst beads are catalytically active, mechanically robust, and suitable for packed-bed reactor applications. The produced catalyst beads are suitable for biomass conversion, petrochemistry, petroleum refining, electrocatalysis, and other applications.Type: GrantFiled: November 1, 2013Date of Patent: April 21, 2015Assignee: UT-Battelle LLCInventors: Jae Soon Choi, Beth L. Armstrong, Viviane Schwartz
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Patent number: 8995605Abstract: A lid frame for a nuclear fuel assembly shipping container and a shipping container for nuclear fuel assemblies are provided. The shipping container can include a lower container in which a cradle is installed, an upper container detachably coupled to the lower container, and a base frame coupled to the cradle with at least one nuclear fuel assembly placed thereon. The lid frame can include a plurality of supports installed apart from each other so as to surround the nuclear fuel assembly placed on the base frame, and a plurality of clamps separated from each other, coupled to the plurality of supports perpendicular to the plurality of supports, rotatably hinged to the base frame, and configured to clamp the nuclear fuel assembly. The lid frame safely protects the nuclear fuel assembly that is being transported.Type: GrantFiled: December 27, 2010Date of Patent: March 31, 2015Assignee: Kepco Nuclear Fuel Co., Ltd.Inventors: Hung Soon Chang, Chang Hwan Hwang, Deuk Yeon Kim, Jae Soon Choi, Weon Chan Hwang, Se Yong Shin, Young Hoon Kim, Jong Sung Hong
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Patent number: 8811564Abstract: A lid frame for a nuclear fuel assembly shipping container and a shipping container for nuclear fuel assemblies are provided. The shipping container includes a lower container having a cradle, an upper container detachably coupled to the lower container, and a base frame coupled to the cradle with at least one nuclear fuel assembly placed thereon. The lid frame includes a plurality of supports installed apart from each other so as to surround the nuclear fuel assembly placed on the base frame, a plurality of clamps separated from each other, coupled to the supports so as to be perpendicular to the supports, rotatably hinged to the base frame, and clamping the nuclear fuel assembly, and a plurality of gap compensators coupled to inner surfaces of the supports in order to compensate for a gap between the inner surfaces of the supports and the nuclear fuel assembly.Type: GrantFiled: December 28, 2010Date of Patent: August 19, 2014Assignee: Kepco Nuclear Fuel Co., Ltd.Inventors: Hung Soon Chang, Chang Hwan Hwang, Deuk Yeon Kim, Jae Soon Choi, Weon Chan Hwang, Se Yong Shin, Young Hoon Kim
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Patent number: 8529512Abstract: The present invention relates to a simple and small cylinder pump, which can stably supply a medical fluid regardless of the installed height of a liquid container or a blood bag. The cylinder pump includes an upper casing, and a lower casing coupled to the upper casing. An upper rotation member is rotatably inserted in the upper casing. A lower rotation member slidingly contacting the upper rotation member is rotatably inserted in the lower casing. An inner wall of the upper casing, a lower outer surface of the upper rotation member, an inner wall of the lower casing, and an upper outer surface of the rotation member constitute a cylinder having a single-tube shape. Plungers are installed on the upper rotation member and on the lower rotation member, respectively, and rotate in the cylinder, the ends of which are closed.Type: GrantFiled: July 6, 2012Date of Patent: September 10, 2013Assignee: Meinntech Co., Ltd.Inventors: Sang Bin Lee, Kun-Hyung Lee, Jeong Ju Lee, Jae Soon Choi, Seung Won Lee
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Publication number: 20130006183Abstract: The present invention relates to a simple and small cylinder pump, which can stably supply a medical fluid regardless of the installed height of a liquid container or a blood bag. The cylinder pump includes an upper casing, and a lower casing coupled to the upper casing. An upper rotation member is rotatably inserted in the upper casing. A lower rotation member slidingly contacting the upper rotation member is rotatably inserted in the lower casing. An inner wall of the upper casing, a lower outer surface of the upper rotation member, an inner wall of the lower casing, and an upper outer surface of the rotation member constitute a cylinder having a single-tube shape. Plungers are installed on the upper rotation member and on the lower rotation member, respectively, and rotate in the cylinder, the ends of which are closed.Type: ApplicationFiled: July 6, 2012Publication date: January 3, 2013Applicant: MEINNTECH CO., LTD.Inventors: Sang Bin Lee, Kun-Hyung Lee, Jeong Ju Lee, Jae Soon Choi, Seung Won Lee
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Patent number: 8305009Abstract: An inverter driver controls an inverter that supplies driving voltages to a plurality of discharge lamps. The inverter driver includes a first amplifier having an output terminal, a second amplifier having an output terminal connected to the output terminal of the first amplifier, and a capacitor connected between the output terminal and a ground source. The first amplifier outputs only a negative current corresponding to the maximum value among the driving voltages supplied to the plurality of discharge lamps, and the second amplifier outputs a current corresponding to the maximum value among the driving currents flowing through the plurality of discharge lamps. Such inverter driver controls the inverter according to a voltage of the capacitor.Type: GrantFiled: March 4, 2009Date of Patent: November 6, 2012Assignee: FAIRCHILD KOREA SEMICONDUCTOR, Ltd.Inventors: Dong-Hun Lee, Jae-Soon Choi
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Patent number: 8274235Abstract: An inverter according to exemplary embodiment of the present invention generates a plurality of feedback voltages corresponding to driving voltages of discharge lamps. The inverter generates a first minimum voltage having a smaller feedback voltage of a plurality of feedback voltages and compares the first minimum voltage and a short circuit reference voltage to determine a short circuit of at least two discharge lamps. Also, the inverter generates a plurality of feedback voltages corresponding to driving currents of a plurality of discharge lamps, generates a second minimum voltage having a smaller feedback voltage of a plurality of the feedback voltages, and compares the second minimum voltage and an open circuit reference voltage to determine the open circuit of the at least two discharge lamps.Type: GrantFiled: June 14, 2010Date of Patent: September 25, 2012Assignee: Fairchild Korea Semiconductor Ltd.Inventors: Jae-Soon Choi, Hak-Hee Lee, Il-Young Jung, Eung-Woo Lee
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Patent number: 8184416Abstract: An inverter driver controls an inverter that supplies driving voltages to a plurality of discharge lamps. The inverter driver senses the abnormal operation of the plurality of discharge lamps based on a plurality of first feedback voltages corresponding to the plurality of driving voltages supplied to the discharge lamps and a plurality of second feedback voltages corresponding to the current flowing through the plurality of discharge lamps. The inverter driver is formed in a single integrated circuit.Type: GrantFiled: July 25, 2008Date of Patent: May 22, 2012Assignee: Fairchild Korea Semiconductor, Ltd.Inventors: Jae-Soon Choi, Dong-Hun Lee
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Patent number: 8120337Abstract: A load driver includes an inverter and an inverter driver. The inverter converts an input voltage into a driving voltage of a discharge lamp using at least one first switch for switching according to a duty ratio, and the inverter driver controls the inverter. The inverter driver controls the duty ratio using a voltage of a capacitor and a control signal having a waveform that is repeated with a predetermined frequency. The capacitor is charged and discharged by a current corresponding to a difference between a feedback voltage corresponding to a current flow to the discharge lamp and a reference voltage. Such inverter driver controls to gradually increase the output voltage of the inverter in the soft start period by setting the voltage of the capacitor as a voltage corresponding to the control signal.Type: GrantFiled: September 22, 2009Date of Patent: February 21, 2012Assignee: Fairchild Korea Semiconductor Ltd.Inventors: Jin-Hwa Chung, Jae-Soon Choi, Chan Son, Hak-Hee Lee
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Patent number: 8120275Abstract: The present invention relates to an inverter and a lamp driver having the same. The inverter includes a first switch having a first body diode, a second switch having a second body diode, a transformer including a first side coil in which a first current and a first voltage are generated according to switching operations of the first switch and the second switch and a second side coil having a predetermined winding ratio with respect to the first side coil, and a controller for controlling each switching operation of the first switch and the second switch. The controller turns on one of the first switch and the second switch corresponding to one of the first body diode and the second body diode, and a current flows through the first switch and the second switch during a dead time.Type: GrantFiled: July 28, 2009Date of Patent: February 21, 2012Assignee: Fairchild Korea Semiconductor Ltd.Inventors: Jae-Soon Choi, Dong-Hun Lee, Hak-Hee Lee
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Publication number: 20120008729Abstract: A lid frame for a nuclear fuel assembly shipping container and a shipping container for nuclear fuel assemblies are provided. The shipping container can include a lower container in which a cradle is installed, an upper container detachably coupled to the lower container, and a base frame coupled to the cradle with at least one nuclear fuel assembly placed thereon. The lid frame can include a plurality of supports installed apart from each other so as to surround the nuclear fuel assembly placed on the base frame, and a plurality of clamps separated from each other, coupled to the plurality of supports perpendicular to the plurality of supports, rotatably hinged to the base frame, and configured to clamp the nuclear fuel assembly. The lid frame safely protects the nuclear fuel assembly that is being transported.Type: ApplicationFiled: December 27, 2010Publication date: January 12, 2012Inventors: Hung Soon Chang, Chang Hwan Hwang, Deuk Yeon Kim, Jae Soon Choi, Weon Chan Hwang, Se Yong Shin, Young Hoon Kim
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Publication number: 20120008730Abstract: A lid frame for a nuclear fuel assembly shipping container and a shipping container for nuclear fuel assemblies are provided. The shipping container includes a lower container having a cradle, an upper container detachably coupled to the lower container, and a base frame coupled to the cradle with at least one nuclear fuel assembly placed thereon. The lid frame includes a plurality of supports installed apart from each other so as to surround the nuclear fuel assembly placed on the base frame, a plurality of clamps separated from each other, coupled to the supports so as to be perpendicular to the supports, rotatably hinged to the base frame, and clamping the nuclear fuel assembly, and a plurality of gap compensators coupled to inner surfaces of the supports in order to compensate for a gap between the inner surfaces of the supports and the nuclear fuel assembly.Type: ApplicationFiled: December 28, 2010Publication date: January 12, 2012Inventors: Hung Soon Chang, Chang Hwan Hwang, Deuk Yeon Kim, Jae Soon Choi, Weon Chan Hwang, Se Yong Shin, Young Hoon Kim