Patents by Inventor Jea Woong
Jea Woong 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: 11846041Abstract: The present disclosure provides a method for facet-selective passivation on each crystal facet of colloidal nanocrystals via solution-phase ligand exchange process, thereby providing highly-passivated and colloidally-stable nanocrystal inks. This ligand exchange strategy separately addresses polar and non-polar facets precluding from deleterious nanocrystal aggregation in the colloid. The method involves the introduction of alkali metal organic complexes during metal halide conventional solution exchanges, and one specific example is Na+·Ac?. Alkali metal ions stabilize and passivate non polar facets whereas polar facets are passivated through metal halides. This strategy leads to a significant decrease in nanocrystal aggregation during and after ligand exchange, and to improved photophysical properties stemming from this. The resulting nanocrystal solid films exhibit improved stability, retain their absorption features, and have a minimized Stokes shift.Type: GrantFiled: May 14, 2019Date of Patent: December 19, 2023Assignee: QD SOLAR INC.Inventors: Younghoon Kim, Fanglin Che, Jea Woong Jo, Jongmin Choi, Francisco Pelayo Garcia De Arquer, Sjoerd Hoogland, Edward H. Sargent
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Publication number: 20230152999Abstract: Write operation and garbage collection methods are provided for a Solid State Drive (SSD) controller of a SSD having Not-AND (NAND) flash memory devices with on-die Static Random Access Memory (SRAM) and NAND flash memory. In the write operation method, a received block of data is stored in on-die SRAM of the NAND flash device, rather than in on-chip SRAM of the controller, prior to programming into NAND flash memory. Until programmed into NAND flash memory, the block of data remains available in the on-die SRAM to fulfill an ‘immediate read’ operation, if received. In the garbage collection method, blocks of data are read from one or more source NAND flash devices and stored in on-die SRAM of a destination NAND flash device until a limit of such blocks has been reached, then the destination NAND flash device programs the blocks from the on-die SRAM into NAND flash memory.Type: ApplicationFiled: November 28, 2022Publication date: May 18, 2023Inventors: Jea Woong Hyun, Chun Liu, Chaohong Hu, Xin Liao
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Patent number: 11210210Abstract: A read latency reduction method includes receiving a read request sent by a host, where the read request includes location indication information of requested data, obtaining, from read voltage management information based on a first physical location indicated by the location indication information, a read voltage corresponding to a first storage area in which the first physical location is located, the flash array includes a plurality of storage areas, the read voltage management information includes a correspondence between a storage area and a read voltage, and the read voltage in the read voltage management information is dynamically updated, and obtaining the requested data based on the read voltage corresponding to the first storage area, and sending the requested data to the host.Type: GrantFiled: May 27, 2020Date of Patent: December 28, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Xuechao Jia, Jea Woong Hyun, Tian Xia, Linfeng Chen
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Publication number: 20210222326Abstract: The present disclosure provides a method for facet-selective passivation on each crystal facet of colloidal nanocrystals via solution-phase ligand exchange process, thereby providing highly-passivated and colloidally-stable nanocrystal inks. This ligand exchange strategy separately addresses polar and non-polar facets precluding from deleterious nanocrystal aggregation in the colloid. The method involves the introduction of alkali metal organic complexes during metal halide conventional solution exchanges, and one specific example is Na+.Ac?. Alkali metal ions stabilize and passivate non polar facets whereas polar facets are passivated through metal halides. This strategy leads to a significant decrease in nanocrystal aggregation during and after ligand exchange, and to improved photophysical properties stemming from this. The resulting nanocrystal solid films exhibit improved stability, retain their absorption features, and have a minimized Stokes shift.Type: ApplicationFiled: May 14, 2019Publication date: July 22, 2021Inventors: Younghoon KIM, Fanglin CHE, Jea Woong JO, Jongmin CHOI, Francisco Pelayo GARCIA DE ARQUER, Sjoerd HOOGLAND, Edward H. SARGENT
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Patent number: 11022023Abstract: A flow control valve is provided to adjust the flow rate of coolant and a variable-separation-cooling process at the same time by adjusting the opening degree of the flow control valve. The ports are controlled simultaneously in a variable manner merely by the operation of the flow control valve and thus, a variable temperature control process for increasing the temperature of the entire engine, rapid engine warm-up, and a separated cooling process at the same time is realized.Type: GrantFiled: June 8, 2018Date of Patent: June 1, 2021Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jea Woong Yi, Cheol Soo Park
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Publication number: 20200285575Abstract: A read latency reduction method includes receiving a read request sent by a host, where the read request includes location indication information of requested data, obtaining, from read voltage management information based on a first physical location indicated by the location indication information, a read voltage corresponding to a first storage area in which the first physical location is located, the flash array includes a plurality of storage areas, the read voltage management information includes a correspondence between a storage area and a read voltage, and the read voltage in the read voltage management information is dynamically updated, and obtaining the requested data based on the read voltage corresponding to the first storage area, and sending the requested data to the host.Type: ApplicationFiled: May 27, 2020Publication date: September 10, 2020Inventors: Xuechao Jia, Jea Woong Hyun, Tian Xia, Linfeng Chen
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Patent number: 10768857Abstract: A storage system, includes a controller and a solid state disk. The controller creates multiple segments in advance, selects a first die from the multiple dies, selects a first segment from the multiple segments, determines an available offset of the first segment, generates a write request, where the write request includes a write address, target data, and a data length of the target data, and the write address includes an identifier of a channel coupled to the first die, an identifier of the first die, an identifier of the first segment, and the available offset, and sends the write request to the solid state disk. The solid state disk receives the write request, and stores the target data according to the write address and the data length.Type: GrantFiled: April 16, 2018Date of Patent: September 8, 2020Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Meng Zhou, Kun Tang, Jui-Yao Yang, Jea Woong Hyun
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Patent number: 10690040Abstract: The present invention relates to a technology that can simultaneously control the flow rate of a coolant and perform variable separate cooling by controlling the opening rate of a flow control valve. The flow control valve has an inlet port connected to a coolant outlet of a cylinder block and a plurality of outlet ports connected to a cooling inlet port of an engine such that the opening rate of a first outlet port is symmetrically changed in a first direction and a second direction from a mid-operation angle of the entire operation section of the flow control valve.Type: GrantFiled: May 3, 2017Date of Patent: June 23, 2020Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Jae Soo Jang, Cheol Soo Park, Bong Hoon Han, Dong Suk Chae, Jun Sik Park, Phil Gi Lee, Jea Woong Yi
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Patent number: 10436102Abstract: A cooling system for vehicles and a control method thereof improves indoor heating performance and fuel efficiency by controlling a flow rate of a coolant passing through a heater core together with an EGR cooler. A coolant having an increased temperature is first supplied to the heater core side through a flow stagnancy control to rapidly increase the temperature of the coolant flowing in the heater core, thereby improving heating performance. A warm-up feature is improved through an exhaust heat recovery function by a heat exchange between the exhaust gas and the coolant in the EGR cooler, thereby improving efficiency of fuel.Type: GrantFiled: May 9, 2018Date of Patent: October 8, 2019Assignees: HYUNDAI MOTOR COMPANY, KIA Motors CorporationInventors: Cheol Soo Park, Dong Suk Chae, Phil Gi Lee, Jun Sik Park, Jea Woong Yi
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Patent number: 10352460Abstract: Disclosed is a coolant control valve unit having a sealing structure, the control valve unit including: a rotary valve provided with a valve coolant passage formed from an inner surface to an outer surface of the rotary valve; a valve housing in which the rotary valve is rotatably provided; a fitting coupled to the valve housing, and having a fitting coolant passage; and a sealing unit provided between a front surface of the fitting and the outer surface of the rotary valve, wherein the sealing unit includes: a sealing ring being in contact with the outer surface of the rotary valve; and a rubber ring provided on the front surface of the fitting, and bringing the sealing ring into contact with the outer surface of the rotary valve, wherein the rubber ring has an X-shaped cross-section, with a front groove, a rear groove, an inner groove, and an outer groove.Type: GrantFiled: May 1, 2017Date of Patent: July 16, 2019Assignees: HYUNDAI MOTOR COMPANY, Kia Motors Corporation, MVH Korea, Inc., Inzicontrols Co., Ltd., GMB Korea Corp.Inventors: Jae Soo Jang, Phil Gi Lee, Jea Woong Yi, Ju Bong Lee, In Hee Lee, Seo Kyu Kim, Cheol Soo Park
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Publication number: 20190178148Abstract: A flow control valve is provided to adjust the flow rate of coolant and a variable-separation-cooling process at the same time by adjusting the opening degree of the flow control valve. The ports are controlled simultaneously in a variable manner merely by the operation of the flow control valve and thus, a variable temperature control process for increasing the temperature of the entire engine, rapid engine warm-up, and a separated cooling process at the same time is realized.Type: ApplicationFiled: June 8, 2018Publication date: June 13, 2019Inventors: Jea Woong Yi, Cheol Soo Park
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Publication number: 20190136743Abstract: A cooling system for vehicles and a control method thereof improves indoor heating performance and fuel efficiency by controlling a flow rate of a coolant passing through a heater core together with an EGR cooler. A coolant having an increased temperature is first supplied to the heater core side through a flow stagnancy control to rapidly increase the temperature of the coolant flowing in the heater core, thereby improving heating performance. A warm-up feature is improved through an exhaust heat recovery function by a heat exchange between the exhaust gas and the coolant in the EGR cooler, thereby improving efficiency of fuel.Type: ApplicationFiled: May 9, 2018Publication date: May 9, 2019Applicants: HYUNDAI MOTOR COMPANY, KIA Motors CorporationInventors: Cheol Soo Park, Dong Suk Chae, Phil Gi Lee, Jun Sik Park, Jea Woong Yi
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Patent number: 10256423Abstract: An organic solar cell is provided. The organic solar cell includes a photoactive layer in which a low molecular weight conjugated compound as a first organic semiconductor material is mixed with an appropriate amount of a second organic semiconductor material. The first organic semiconductor material includes both electron donors and electron acceptors. The presence of the electron donors and the electron acceptors in the first organic semiconductor material improves the morphology of the photoactive layer, leading to high efficiency of the organic solar cell.Type: GrantFiled: December 14, 2016Date of Patent: April 9, 2019Assignee: Korea Institute of Science and TechnologyInventors: Hae Jung Son, Min Jae Ko, Jai Kyeong Kim, Hyo Sang Lee, Jea Woong Jo, Sungmin Park, Jae Hoon Yun
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Patent number: 10180101Abstract: A fail-safe control method for a vehicle cooling system, in which an engine and a vehicle can be properly operated even when a water temperature sensor malfunctions. When only one of two water temperature sensors malfunctions, control may be performed so that an engine and a vehicle can properly operate. When both the two water temperature sensors malfunction, the fail-safe function of the flow rate control valve can be enabled to entirely prevent cooling water from being overheated, thereby improving the reliability of the operation of the vehicle.Type: GrantFiled: December 4, 2017Date of Patent: January 15, 2019Assignees: HYUNDAI MOTO COMPANY, KIA MOTORS CORPORATIONInventors: Cheol Soo Park, Dong Suk Chae, Jun Sik Park, Seong Kyu Park, Jea Woong Yi
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Patent number: 10161292Abstract: A cooling system for a vehicle and a control method thereof improves fuel efficiency through quick warm-up of an engine by controlling a flow rate of cooling water passing through an EGR cooler. In the cooling system and control method cooling water with an increased temperature through flow stagnation control is first supplied to an oil heat exchanger side. Heat energy generated from the engine is used to rapidly raise a cooling water temperature and an oil temperature. A warm-up characteristic is improved through the exhaust heat recovery function by heat exchange between exhaust gas and the cooling water in the EGR cooler.Type: GrantFiled: November 29, 2017Date of Patent: December 25, 2018Assignees: Hyundai Motor Company, Kia Motors CorporationInventors: Cheol Soo Park, Dong Suk Chae, Phil Gi Lee, Jun Sik Park, Jea Woong Yi
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Publication number: 20180232181Abstract: A storage system, includes a controller and a solid state disk. The controller creates multiple segments in advance, selects a first die from the multiple dies, selects a first segment from the multiple segments, determines an available offset of the first segment, generates a write request, where the write request includes a write address, target data, and a data length of the target data, and the write address includes an identifier of a channel coupled to the first die, an identifier of the first die, an identifier of the first segment, and the available offset, and sends the write request to the solid state disk. The solid state disk receives the write request, and stores the target data according to the write address and the data length.Type: ApplicationFiled: April 16, 2018Publication date: August 16, 2018Inventors: Meng Zhou, Kun Tang, Jui-Yao Yang, Jea Woong Hyun
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Patent number: 9916237Abstract: Apparatuses, systems, methods, and computer program products are disclosed for model based configuration parameter management. An association module is configured to group a plurality of erase blocks of a non-volatile memory medium based on an amount of time since data has been written to the plurality of erase blocks. A read module is configured to sample data of at least two word lines from at least one erase block from each of a plurality of groups of erase blocks. A configuration parameter module is configured to determine different read voltage thresholds for different word lines of groups of erase blocks using different read voltage threshold models for different groups based on sampled data.Type: GrantFiled: February 2, 2015Date of Patent: March 13, 2018Assignee: SANDISK TECHNOLOGIES LLCInventors: Jea Woong Hyun, Joshua Perschon, Rick Lucky, Hairong Sun, James Peterson
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Publication number: 20170321595Abstract: The present invention relates to a technology that can simultaneously control the flow rate of a coolant and perform variable separate cooling by controlling the opening rate of a flow control valve. The flow control valve has an inlet port connected to a coolant outlet of a cylinder block and a plurality of outlet ports connected to a cooling inlet port of an engine such that the opening rate of a first outlet port is symmetrically changed in a first direction and a second direction from a mid-operation angle of the entire operation section of the flow control valve.Type: ApplicationFiled: May 3, 2017Publication date: November 9, 2017Inventors: Jae Soo JANG, Cheol Soo PARK, Bong Hoon HAN, Dong Suk CHAE, Jun Sik PARK, Phil Gi LEE, Jea Woong YI
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Publication number: 20170321812Abstract: Disclosed is a coolant control valve unit having a sealing structure, the control valve unit including: a rotary valve provided with a valve coolant passage formed from an inner surface to an outer surface of the rotary valve; a valve housing in which the rotary valve is rotatably provided; a fitting coupled to the valve housing, and having a fitting coolant passage; and a sealing unit provided between a front surface of the fitting and the outer surface of the rotary valve, wherein the sealing unit includes: a sealing ring being in contact with the outer surface of the rotary valve; and a rubber ring provided on the front surface of the fitting, and bringing the sealing ring into contact with the outer surface of the rotary valve, wherein the rubber ring has an X-shaped cross-section, with a front groove, a rear groove, an inner groove, and an outer groove.Type: ApplicationFiled: May 1, 2017Publication date: November 9, 2017Inventors: Jae Soo JANG, Phil Gi LEE, Jea Woong YI, Ju Bong LEE, In Hee LEE, Seo Kyu KIM, Cheol Soo PARK
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Publication number: 20170288156Abstract: An organic solar cell is provided. The organic solar cell includes a photoactive layer in which a low molecular weight conjugated compound as a first organic semiconductor material is mixed with an appropriate amount of a second organic semiconductor material. The first organic semiconductor material includes both electron donors and electron acceptors. The presence of the electron donors and the electron acceptors in the first organic semiconductor material improves the morphology of the photoactive layer, leading to high efficiency of the organic solar cell.Type: ApplicationFiled: December 14, 2016Publication date: October 5, 2017Inventors: Hae Jung SON, Min Jae KO, Jai Kyeong KIM, Hyo Sang LEE, Jea Woong JO, Sungmin PARK, JAE HOON YUN