Patents by Inventor Jeongmin Ahn
Jeongmin Ahn 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: 11974838Abstract: An electronic device may include a PPG sensor including a light emitter that applies a current in a specified range and emits a light signal corresponding to the current and a light detector that amplifies a received light signal by applying one of a plurality of gain values, a memory that stores a plurality of sets of PPG models corresponding to the plurality of gain values and including a current value and PPG level data corresponding to the current value, and at least one processor electrically connected to the PPG sensor and the memory.Type: GrantFiled: January 9, 2019Date of Patent: May 7, 2024Assignee: Samsung Electronics Co., LtdInventors: Hansung Lee, Hwan Shim, Yongjin Lee, Jooman Han, Jongho Park, Gahee Jung, Seounghun Kim, Jihwan Kim, Choonghee Ahn, Hyungjoon Lim, Jiwoon Jung, Jeongmin Park
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Patent number: 11978448Abstract: Disclosed is a display device capable of classifying clickable content in a web application screen, and the display device can perform primary classification on all nodes existing in a document object model (DOM) and perform secondary classification for determining whether a node exists in the screen.Type: GrantFiled: February 19, 2020Date of Patent: May 7, 2024Assignee: LG ELECTRONICS INC.Inventors: Jeongmin Kim, Youngtae Chung, Kwangrim Ahn
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Publication number: 20240145734Abstract: A method of forming complex ceramic structures without altering the ceramic microstructure. A tape cast ceramic substrate is masked and then sprayed with a film having a different thermal expansion coefficient than the tape cast ceramic substrate. The mask is removed to leave the desired pattern of film on the tape ceramic substrate. As the substrate and film cools down from the peak sintering temperature, deformation occurs due to the different thermal expansion coefficients. By varying film thickness and deposition pattern, the composite can be designed to deform only in certain areas, allowing for well-controlled folding of the tape cast ceramic composite to provide for folding into complex shapes.Type: ApplicationFiled: October 26, 2023Publication date: May 2, 2024Applicant: Syracuse UniversityInventors: Alexander Hartwell, Jeongmin Ahn
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Publication number: 20230394097Abstract: An electronic device may include communication circuitry, for communicating with at least one external electronic device; and at least one processor operatively connected to the communication module. The at least one processor may be configured to: acquire transition information related to transitions between pieces of content for each content category; generate, based on the transition information, a plurality of content sequences indicating pieces of interrelated content in at least one content category; and provide the external electronic device with at least some of the plurality of content sequences, which are used to provide a recommended content sequence in the external electronic device.Type: ApplicationFiled: August 16, 2023Publication date: December 7, 2023Inventors: Chungki LEE, Hwangki MIN, Jinah PARK, Sunbal KIM, Hyunjoong KIM, Yoonyoung NAM, Sojung PARK, Chunki BAE, Anubhav SHRIVASTAVA, Jeongmin AHN, Seungyeol YOO, Seokho YOON, Yuwon LEE, Sunook CHOI, Gajin SONG, Jaeyung YEO
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Publication number: 20230347265Abstract: Proposed is a constant flow conditioner having a microbubble removal function and there is an effect that sample water is supplied at constant flow rate and pressure to a water quality meter regardless of pressure variation of inflow sample due to external factors. Further, there is an effect that it is possible easily remove bubbles in sample water.Type: ApplicationFiled: July 3, 2023Publication date: November 2, 2023Inventors: Kyungyup HWANG, Youjung KIM, Jeongmin AHN, Deukhyeon JEUN, Changsik SON
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Patent number: 11799115Abstract: A non-catalytic microcombustion based FFC for the direct use of hydrocarbons for power generation. The potential for high FFC performance (450 mW·cm?2 power density and 50% fuel utilization) in propane/air microcombustion exhaust was demonstrated. The micro flow reactor was used as a fuel reformer for equivalence ratios from 1-5.5. Soot formation in the micro flow reactor was not observed at equivalence ratios from 1 to 5.5 and maximum wall temperatures ranging from 750 to 900° C. H2 and CO concentrations in the exhaust were found to have a strong temperature dependence that varies with the maximum wall temperature and the local flame temperature.Type: GrantFiled: January 7, 2020Date of Patent: October 24, 2023Assignee: Syracuse UniversityInventors: Ryan Milcarek, Jeongmin Ahn
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Patent number: 11787549Abstract: A hybrid power system for an unmanned aerial system (UAS) having a liquid fuel engine and a solid oxide fuel cell coupled to the exhaust of the engine for generating electricity that is used by the electric motors of the UAS to create lift and control flight. A conventional remote control (r/c) liquid fuel engine may be used generate exhaust gases including hydrogen and carbon monoxide that are used by a SOFC coupled to the exhaust of the r/c engine to generate electricity. The electric motors of the UAS may thus be powered by the electricity generated by the SOFC.Type: GrantFiled: July 29, 2019Date of Patent: October 17, 2023Assignee: SYRACUSE UNIVERSITYInventors: Jeongmin Ahn, Thomas Welles
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Publication number: 20230314303Abstract: A testing apparatus for evaluating a medical implant for electric potential oscillations that lead to corrosion. The testing apparatus uses a uniaxial load device having a mounting base for accepting a medical implant and orienting the implant along a predetermined axis, a support plate positioned under the uniaxial load device and moveable to apply a force to the implant, a load cell positioned above the mounting plate to measure the force applied to the implant, and a set of differential variable reluctance transducers positioned to measure motion of the implant. A chamber encloses the uniaxial load device so that the implant can be submerged in a fluid replicating human synovial fluid. A faraday cage surrounds the chamber for isolation from environmental electromagnetic radiation. An array of near field antenna are positioned circumferentially around the chamber and driven by a multi-frequency generator.Type: ApplicationFiled: March 10, 2023Publication date: October 5, 2023Applicant: Syracuse UniversityInventors: Jeongmin Ahn, Thomas Welles
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Publication number: 20220354667Abstract: A dampening device that can be coupled to a medical implant to eliminate harmful electrical oscillations. The device includes circuity that detects harmful electrical oscillations in the implant. The device also includes circuity that generates cancelling electrical signals that counter the detected electrical oscillations. Alternatively, in a medical implant having a taper junction such as a standard hip implant, resistance welding of the taper junction just prior to surgical implanting may be performed after the appropriately dimensioned components are selected to eliminate a metal on metal interface where corrosion is most likely to occur.Type: ApplicationFiled: May 6, 2022Publication date: November 10, 2022Applicant: SYRACUSE UNIVERSITYInventors: Jeongmin Ahn, Thomas Welles
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Publication number: 20210323687Abstract: A hybrid power system for an unmanned aerial system (UAS) having a liquid fuel engine and a solid oxide fuel cell coupled to the exhaust of the engine for generating electricity that is used by the electric motors of the UAS to create lift and control flight. A conventional remote control (r/c) liquid fuel engine may be used generate exhaust gases including hydrogen and carbon monoxide that are used by a SOFC coupled to the exhaust of the r/c engine to generate electricity. The electric motors of the UAS may thus be powered by the electricity generated by the SOFC.Type: ApplicationFiled: July 29, 2019Publication date: October 21, 2021Applicant: SYRACUSE UNIVERSITYInventors: Jeongmin Ahn, Thomas Welles
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Patent number: 11101482Abstract: A dual chamber solid oxide fuel cell integrated into the exhaust stream of an internal combustion engine, in which engine exhaust gases are routed to the anode of a tubular solid oxide fuel cell (SOFC) and heated secondary air is supplied to the cathode of the SOFC. The secondary air supply is heated using the existing engine temperature and exhaust gas temperature through a heat exchanger formed by a modified cylinder head and exhaust manifold. The dual chamber solid oxide fuel provides the necessary hydrocarbon and carbon monoxide scrubbing to achieve mandatory catalytic conversion for vehicle operation. In addition, the dual chamber solid oxide fuel cell is capable of generating sufficient electrical power for the vehicle. Omission of conventional catalytic convertors and alternators allows for improved efficiency and fuel economy of the internal combustion engine.Type: GrantFiled: January 30, 2019Date of Patent: August 24, 2021Assignee: SYRACUSE UNIVERSITYInventors: Jeongmin Ahn, Thomas Welles
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Publication number: 20200227766Abstract: A non-catalytic microcombustion based FFC for the direct use of hydrocarbons for power generation. The potential for high FFC performance (450 mW·cm?2 power density and 50% fuel utilization) in propane/air microcombustion exhaust was demonstrated. The micro flow reactor was used as a fuel reformer for equivalence ratios from 1-5.5. Soot formation in the micro flow reactor was not observed at equivalence ratios from 1 to 5.5 and maximum wall temperatures ranging from 750 to 900° C. H2 and CO concentrations in the exhaust were found to have a strong temperature dependence that varies with the maximum wall temperature and the local flame temperature.Type: ApplicationFiled: January 7, 2020Publication date: July 16, 2020Applicant: SYRACUSE UNIVERSITYInventors: Ryan Milcarek, Jeongmin Ahn
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Patent number: 10690030Abstract: A micro-tubular flame assisted fuel cell (mT FFC) integrated with a rich-burn, quick-mix, lean-burn (RQL) combustor for reduced NOx. Fuel and oxidant pass into a first-stage, fuel-rich combustion chamber. The exhaust products pass to the fuel cell for electrochemical conversion. Any remaining fuel is quickly mixed in a jet of oxidant to reduce temperature gradients and NOx formation in a second stage, fuel-lean combustion chamber. Preheating of the fuel, and different oxidant streams, is possible via heat exchangers in the fuel-rich and fuel-lean combustion chambers.Type: GrantFiled: August 30, 2018Date of Patent: June 23, 2020Assignee: SYRACUSE UNIVERSITYInventors: Jeongmin Ahn, Ryan Milcarek
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Publication number: 20200052316Abstract: A dual chamber solid oxide fuel cell integrated into the exhaust stream of an internal combustion engine, in which engine exhaust gases are routed to the anode of a tubular solid oxide fuel cell (SOFC) and heated secondary air is supplied to the cathode of the SOFC. The secondary air supply is heated using the existing engine temperature and exhaust gas temperature through a heat exchanger formed by a modified cylinder head and exhaust manifold. The dual chamber solid oxide fuel provides the necessary hydrocarbon and carbon monoxide scrubbing to achieve mandatory catalytic conversion for vehicle operation. In addition, the dual chamber solid oxide fuel cell is capable of generating sufficient electrical power for the vehicle. Omission of conventional catalytic convertors and alternators allows for improved efficiency and fuel economy of the internal combustion engine.Type: ApplicationFiled: January 30, 2019Publication date: February 13, 2020Applicant: SYRACUSE UNIVERSITYInventors: Jeongmin Ahn, Thomas Welles, Ryan Milcarek
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Patent number: 10283794Abstract: A porous solid oxide fuel cell (PSOFC) system for electricity and syngas co-generation. The system has a porous layer, a porous electrolyte layer with catalyst, a porous anode layer, and a porous catalyst layer. A fuel air/O2 mixture is introduced from through the porous cathode layer so that it next passes through the porous electrolyte layer with catalyst, then the porous anode layer, and finally the porous catalyst layer. Syngas exits the porous catalyst layer with electricity being produced across the anode and cathode layers.Type: GrantFiled: December 8, 2016Date of Patent: May 7, 2019Assignee: Syracuse UniversityInventors: Jeongmin Ahn, Ryan Milcarek, Kang Wang, Pingying Zeng
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Publication number: 20190063283Abstract: A micro-tubular flame assisted fuel cell (mT FFC) integrated with a rich-burn, quick-mix, lean-burn (RQL) combustor for reduced NOx. Fuel and oxidant pass into a first-stage, fuel-rich combustion chamber. The exhaust products pass to the fuel cell for electrochemical conversion. Any remaining fuel is quickly mixed in a jet of oxidant to reduce temperature gradients and NOx formation in a second stage, fuel-lean combustion chamber. Preheating of the fuel, and different oxidant streams, is possible via heat exchangers in the fuel-rich and fuel-lean combustion chambers.Type: ApplicationFiled: August 30, 2018Publication date: February 28, 2019Applicant: SYRACUSE UNIVERSITYInventors: Jeongmin Ahn, Ryan Milcarek
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Patent number: 10170780Abstract: The present invention relates to a flame-assisted fuel cell (FFC) and, more particularly, to the integration of a FFC in a fuel fired furnace or boiler to enable the generation of both electricity and heat from the fuel's chemical energy, transforming the furnace/boiler into a Combined Heating and Power (CHP) system.Type: GrantFiled: June 10, 2014Date of Patent: January 1, 2019Assignee: SYRACUSE UNIVERSITYInventors: Jeongmin Ahn, H. Ezzat Khalifa
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Publication number: 20170170503Abstract: A porous solid oxide fuel cell (PSOFC) system for electricity and syngas co-generation. The system has a porous layer, a porous electrolyte layer with catalyst, a porous anode layer, and a porous catalyst layer. A fuel air/O2 mixture is introduced from through the porous cathode layer so that it next passes through the porous electrolyte layer with catalyst, then the porous anode layer, and finally the porous catalyst layer. Syngas exits the porous catalyst layer with electricity being produced across the anode and cathode layers.Type: ApplicationFiled: December 8, 2016Publication date: June 15, 2017Applicant: SYRACUSE UNIVERSITYInventors: Jeongmin Ahn, Ryan Milcarek, Kang Wang, Pingying Zeng
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Patent number: 9196916Abstract: The present invention relates to a power device and, more particularly, to a non-propulsive thermal transpiration based micro single-chamber solid oxide fuel cell (SCSOFC) power device.Type: GrantFiled: December 4, 2013Date of Patent: November 24, 2015Assignee: Syracuse UniversityInventors: Jeongmin Ahn, Paul D. Ronney
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Publication number: 20140363776Abstract: The present invention relates to a flame-assisted fuel cell (FFC) and, more particularly, to the integration of a FFC in a fuel fired furnace or boiler to enable the generation of both electricity and heat from the fuel's chemical energy, transforming the furnace/boiler into a Combined Heating and Power (CHP) system.Type: ApplicationFiled: June 10, 2014Publication date: December 11, 2014Applicant: SYRACUSE UNIVERSITYInventors: Jeongmin Ahn, H. Ezzat Khalifa