Patents by Inventor Sung-Hun Lim
Sung-Hun Lim 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: 20240102745Abstract: Heat exchanger comprising a pair of header tanks which are arranged to be spaced apart from each other, a plurality of tubes formed in two columns in the width direction so that both ends are connected to the pair of header tanks, and a plurality of fins interposed between the tubes and coupled to the tubes. The header tank is configured so that a first tank and a second tank are respectively coupled to one header having a central bent portion in the center portion in the width direction, which provides easy assembling of headers and tanks of two heat exchangers. Thermal stress caused by the temperature difference between two heat exchanging media is blocked so that damage to a coupling portion where the two heat exchangers are coupled or a bonding portion formed through brazing can be prevented. Thus, leakage of the heat exchanging medium can be prevented.Type: ApplicationFiled: May 6, 2022Publication date: March 28, 2024Inventors: Hong-Young LIM, Sung Hong SHIN, Hyunkeun SHIN, Wontaek LEE, Wi Sam JO, Ji Hun HAN
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Patent number: 11018501Abstract: A directional overcurrent relay using a superconducting fault current limiter voltage as a relay element includes: a current measuring circuit measuring a current of a line connected from a system power source to a load, a voltage measuring circuit measuring a voltage at both ends of a superconducting fault current limiter connected to the line, and a correcting circuit correcting a tripping time Ttrip by using a fault current If that is the current of the line and a superconducting fault current limiter voltage VSFCL that is the voltage at both ends of the superconducting fault current limiter and the tripping time Ttrip is maintained consistently regardless of whether the superconducting fault current limiter operates or not.Type: GrantFiled: November 23, 2018Date of Patent: May 25, 2021Assignee: Foundation of Soongsil University-Industry CooperationInventors: Sung Hun Lim, Seung Taek Lim
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Publication number: 20200014198Abstract: Provided is a directional overcurrent relay using a superconducting fault current limiter voltage as a relay element, and a method for correcting the same. The directional overcurrent relay using a superconducting fault current limiter voltage as a relay element includes: a current measuring circuit measuring a current of a line connected from a system power source to a load, a voltage measuring circuit measuring a voltage at both ends of a superconducting fault current limiter connected to the line, and a correcting circuit correcting a tripping time Ttrip by using a fault current If that is the current of the line and a superconducting fault current limiter voltage VSFCL that is the voltage at both ends of the superconducting fault current limiter and the tripping time Ttrip is maintained consistently regardless of whether the superconducting fault current limiter operates or not.Type: ApplicationFiled: November 23, 2018Publication date: January 9, 2020Inventors: Sung Hun Lim, Seung Taek Lim
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Patent number: 9866013Abstract: A current limiting device is provided. To elaborate, the device may include: a first current limiting unit configured to limit an electric current equal to or higher than a first threshold value applied thereto; a second current limiting unit configured to limit an electric current equal to or higher than a second threshold value applied thereto; and a passive element unit connected to both ends of the first current limiting unit, and including a first passive element and a second passive element connected in series.Type: GrantFiled: May 20, 2014Date of Patent: January 9, 2018Assignee: SOONGSIL UNIVERSITY RESEARCH CONSORTIUM TECHNO-PARKInventors: Sung Hun Lim, Jae Chul Kim, Jin Seok Kim
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Publication number: 20160308351Abstract: A current limiting device is provided. To elaborate, the device may include: a first current limiting unit configured to limit an electric current equal to or higher than a first threshold value applied thereto; a second current limiting unit configured to limit an electric current equal to or higher than a second threshold value applied thereto; and a passive element unit connected to both ends of the first current limiting unit, and including a first passive element and a second passive element connected in series.Type: ApplicationFiled: May 20, 2014Publication date: October 20, 2016Inventors: Sung Hun Lim, Jae Chul Kim, Jin Seok Kim
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Patent number: 8810978Abstract: Disclosed herein is a Superconducting Fault Current Limiter (SFCL) for suppressing a bus voltage drop in an electric power system. A primary winding, a secondary winding, and a tertiary winding are wound around an identical iron core, and a superconductor is connected to any one of the primary winding and the secondary winding. A first switch is connected to any one of the primary winding and the secondary winding and is configured to be opened so as to separate a faulty section when a fault current is generated and to be shorted when the fault current is eliminated. A second switch is connected in series to the tertiary winding and is configured to be shorted so as to stably supply power when the fault current is generated and to be opened when the fault current is eliminated.Type: GrantFiled: October 22, 2010Date of Patent: August 19, 2014Assignee: Foundation of Soongsil University-Industry CooperationInventors: Sung-Hun Lim, Jae-Chul Kim, Il-Kyoung You, Jin-Seok Kim, Myoung-Hoo Kim
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Publication number: 20120327538Abstract: Disclosed herein is a Superconducting Fault Current Limiter (SFCL) for suppressing a bus voltage drop in an electric power system. A primary winding, a secondary winding, and a tertiary winding are wound around an identical iron core, and a superconductor is connected to any one of the primary winding and the secondary winding. A first switch is connected to any one of the primary winding and the secondary winding and is configured to be opened so as to separate a faulty section when a fault current is generated and to be shorted when the fault current is eliminated. A second switch is connected in series to the tertiary winding and is configured to be shorted so as to stably supply power when the fault current is generated and to be opened when the fault current is eliminated.Type: ApplicationFiled: October 22, 2010Publication date: December 27, 2012Applicant: FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATIONInventors: Sung-Hun Lim, Jae-Chul Kim, Il-Kyoung You, Jin-Seok Kim, Myoung-Hoo Kim
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Publication number: 20110234161Abstract: The present disclosure includes an adapter and associated method of use for mobile unit (MU) charging and communication that enables multiple connector types to be utilized with a single charger or charging station. The adapter enables standardization of a connector scheme on newer MUs while maintaining compatibility with current or older MU devices. Specifically, the adapter resides between the MU and a charging device or station. The adapter may include various connector features mimicking connectors of various different MUs, thus allowing it to interface with a device of a different connector design. Advantageously, the adapter enables enterprises to deploy various cradles throughout facilities and achieves universal connections for a plurality of different MUs. In an exemplary embodiment, the adapter provides connectivity between various MUs and their associated cradles and a hook and pivoting latching system.Type: ApplicationFiled: March 23, 2010Publication date: September 29, 2011Applicant: Symbol Technologies, Inc.Inventors: Ian Jenkins, Sung Hun Lim, Wen-Tsia Liu, Richard Martin
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Patent number: 7679867Abstract: A magnetic flux coupling-type superconducting current limiter is capable of protecting lines more effectively by winding reactors of a primary coil and a secondary coil in series in the structure where the primary coil and the secondary coils are wound in parallel in the conventional magnetic flux-lock type current limiter to increase a linked flux generated from an iron core. An electric conducting current which rapidly increases when a fault occurs is divided into the secondary coil and a superconducting coil to decrease a load on the superconducting element and it is opened more rapidly than the existing superconducting current limiter during a quench time such that it better limits a fault current.Type: GrantFiled: March 30, 2007Date of Patent: March 16, 2010Assignee: Industry-Academic Cooperation Foundation, Chosun UniversityInventors: Hyo-Sang Choi, Hyoung-Min Park, Yong-Sun Cho, Gueng-Hyun Nam, Na-Young Lee, Tae-Hee Han, Sung-Hun Lim, Dong-Chul Chung
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Publication number: 20070257755Abstract: A magnetic flux coupling-type superconducting current limiter is capable of protecting lines more effectively by winding reactors of a primary coil and a secondary coil in series in the structure where the primary coil and the secondary coils are wound in parallel in the conventional magnetic flux-lock type current limiter to increase a linked flux generated from an iron core. An electric conducting current which rapidly increases when a fault occurs is divided into the secondary coil and a superconducting coil to decrease a load on the superconducting element and it is opened more rapidly than the existing superconducting current limiter during a quench time such that it better limits a fault current.Type: ApplicationFiled: March 30, 2007Publication date: November 8, 2007Applicant: Industry-Academic Cooperation Foundation, Chosun UniversityInventors: Hyo-Sang CHOI, Hyoung-Min PARK, Yong-Sun CHO, Gueng-Hyun NAM, Na-Young LEE, Tae-Hee HAN, Sung-Hun LIM, Dong-Chul CHUNG
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Patent number: PP12043Abstract: A new and distinct variety of peach ‘Prunus persica’ tree with the following combination of unique features that are desirable in a new variety. 1. Heavy and rugular production of fruit. 2. Production of very firm, white flesh fruit with good handling and shipping quality. 3. Fruit that will stay firm on the tree 15 to 17 days after maturity (shipping ripe). 4. Fruit with excellent flavor and eating quality. 5. Early season maturity of white flesh fruit. 6. Fruit with an attractive red skin. 7. Vigorous half-open growth.Type: GrantFiled: December 21, 1998Date of Patent: August 7, 2001Inventors: Jung-Kyoung Lim, Sung-Hun Lim
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Method and apparatus for supporting discontinuous reception operation in mobile communication system
Patent number: RE49879Abstract: A method and an apparatus for supporting a discontinuous reception (DRX) operation in a Node B in a mobile communication system are provided. The method includes defining a second System Frame Number (SFN) where one cycle of a first SFN corresponds to one bit, transmitting information on the second SFN to a User Equipment (UE), determining a second SFN which is used to transmit a paging signal to the UE, determining a first SFN which is used to transmit the paging signal in the determined second SFN, and transmitting the paging signal to the UE at the determined first SFN.Type: GrantFiled: November 7, 2019Date of Patent: March 19, 2024Assignee: Samsung Electronics Co., Ltd.Inventors: Sang-Bum Kim, Sung-Ho Choi, Soeng-Hun Kim, Kyeong-In Jeong, Jung-Soo Jung, Chae-Gwon Lim