Patents by Inventor Sang Cheol Shin
Sang Cheol Shin 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: 12143043Abstract: An inverter driving apparatus includes an inverter including a plurality of legs corresponding to a plurality of phases respectively, a gate driver outputting a pulse width modulation control signal for switching the transistor provided in the leg, a variable resistor circuit connected to a gate end of the transistor, and a switching speed control circuit determining a switching state of the transistor based on the pulse width modulation control signal, adjusting a resistance value of the variable resistor circuit according to the temperature of the transistor based on the determination result, and controlling the switching speed of the transistor.Type: GrantFiled: November 11, 2022Date of Patent: November 12, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Young Seul Lim, Myung Ho Kim, Sang Cheol Shin, Kang Ho Jeong
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Patent number: 12143049Abstract: A motor driving apparatus includes an inverter that includes a switching element connected between either terminal of a battery and a thermistor insulated from the switching element and that drives a motor through the switching element, a resistor connected between a sensing node to which one end of the thermistor is connected and a terminal of a low source voltage, and a motor controller configured for controlling a relay connected between the battery and the switching element based on a voltage of the sensing node.Type: GrantFiled: November 11, 2022Date of Patent: November 12, 2024Assignees: Hyundai Motor Company, Kia CorporationInventors: Ji Woong Jang, Sang Cheol Shin, Yoo Jong Lee, Dong Hoon Park, Ki Jong Lee, Ho Tae Chun
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Patent number: 12139604Abstract: The present disclosure provides a polyalkylene carbonate-based resin having excellent thermal stability, thereby having an improved heat shrinkage phenomenon, and a molded article produced using the same. The polyalkylene carbonate-based resin includes 100 parts by weight of a base resin including a polyalkylene carbonate resin and a polylactide resin, and 5 parts by weight to 10 parts by weight of a heat shrinkage prevention agent, wherein the base resin includes the polyalkylene carbonate resin and the polylactide resin in a weight ratio of 6:4 to 4:6, and the heat shrinkage prevention agent is one or more selected from the group consisting of a polyalkyl(meth)acrylate-based resin, a polyalphaolefin-vinyl acetate-based resin, and a polyoxyalkylene-based resin.Type: GrantFiled: January 22, 2021Date of Patent: November 12, 2024Assignee: LG Chem, Ltd.Inventors: Won Hee Woo, Seung Young Park, Sung Kyoung Kim, Sang Cheol Shin, Kyung Min Min, Won Seok Kim
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Publication number: 20240356065Abstract: Disclosed are a sulfide-based solid electrolyte including boron and having a face-centered cubic crystalline phase and a method of manufacturing the same.Type: ApplicationFiled: September 12, 2023Publication date: October 24, 2024Inventors: Ho Cheol Shin, Hong Seok Min, Sang Heon Lee, Sang Soo Lee, Mun Seok Chae, Wo Dum Jung, In Woo Song, So Young Kim, Young Whan Cho
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Publication number: 20240322727Abstract: A motor-driving apparatus for driving a motor having a plurality of windings respectively corresponding to a plurality of phases is provided. The motor-driving apparatus includes a first inverter having a plurality of first switching devices and connected to first ends of the plurality of windings and a second inverter having a plurality of second switching devices and connected to second ends of the plurality of windings. A third switching device is configured to selectively connect and disconnect points at which a number of turns of each of the windings is divided in a preset ratio. A controller is configured to adjust an on/off state of the first to third switching devices based on required output of the motor.Type: ApplicationFiled: June 7, 2024Publication date: September 26, 2024Inventors: Kang Ho Jeong, Jong Kyong Lim, Suk Hyun Lim, Ji Woong Jang, Beom Sik Kim, Sang Cheol Shin
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Patent number: 12101046Abstract: A motor driving apparatus which drives a motor including a plurality of winding portions corresponding to a plurality of phases, respectively, includes a motor including a plurality of winding portions corresponding to a plurality of phases, respectively, a first inverter including a plurality of first switching elements and electrically connected to a first end of each of the winding portions, a second inverter including a plurality of second switching elements and electrically connected to a second end of each of the winding portions, a plurality of third switching elements including first ends electrically connected to the second ends of the plurality of winding portions, respectively, and second ends electrically connected to each other, and a controller.Type: GrantFiled: November 11, 2022Date of Patent: September 24, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Kang Ho Jeong, Myung Ho Kim, Sang Cheol Shin, Young Seul Lim
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Patent number: 12076714Abstract: The present disclosure relates to a method for separating an organozinc catalyst from a polyalkylene carbonate polymerization solution, and the method of the present disclosure includes: stirring and aging a polymerization solution including a polyalkylene carbonate resin, an organozinc catalyst, an alkylene oxide and a polymerization solvent; and filtering the polymerization solution after completing the aging.Type: GrantFiled: September 28, 2020Date of Patent: September 3, 2024Assignee: LG Chem, Ltd.Inventors: Kyung Min Min, Seung Young Park, Sung Kyoung Kim, Sang Cheol Shin, Won Seok Kim, Won Hee Woo
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Patent number: 12078866Abstract: The present embodiments relates to a lens driving device including: a housing; a bobbin disposed in the housing; a coil disposed on the bobbin; a first magnet which is disposed on the housing and faces the coil; a second magnet disposed on the bobbin; and a sensor which is disposed on the housing and faces the second sensor, wherein the sensor includes an upper surface, a lower surface disposed opposite the upper surface, an inner surface facing the second magnet, an outer surface disposed opposite the inner surface, and both lateral surfaces connecting the inner surface with the outer surface, the upper surface and the lower surface of the sensor are fixed to the housing, and one of the side surfaces of the sensor is opened.Type: GrantFiled: May 5, 2023Date of Patent: September 3, 2024Assignee: LG INNOTEK CO., LTD.Inventors: Jung Cheol Kim, Jin Suk Han, Sang Ok Park, Tae Bong Park, Seung Taek Shin
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Patent number: 12074548Abstract: An electrified vehicle having a first inverter having a DC terminal and a plurality of legs respectively connected to one end of each of a plurality of coils of a motor, a second inverter connected to the DC terminal, and including a plurality of legs connected to the other ends of the plurality of coils, respectively, a plurality of transfer switches respectively having one end connected to a neutral terminal for the plurality of coils and the other end connected to the other end of each coil, an overvoltage protection circuit including a clamping switch, a resistor, and a capacitor, and connected to the neutral terminal and the DC terminal, and a controller controlling a turned-on state of the plurality of transfer switches according to the motor driving mode. When the motor is driven, the controller controls a turned-on state of the clamping switch.Type: GrantFiled: March 6, 2023Date of Patent: August 27, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Myung Ho Kim, Young Seul Lim, Sang Cheol Shin, Kang Ho Jeong
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Patent number: 12034391Abstract: A motor-driving apparatus for driving a motor having a plurality of windings respectively corresponding to a plurality of phases is provided. The motor-driving apparatus includes a first inverter having a plurality of first switching devices and connected to first ends of the plurality of windings and a second inverter having a plurality of second switching devices and connected to second ends of the plurality of windings. A third switching device is configured to selectively connect and disconnect points at which a number of turns of each of the windings is divided in a preset ratio. A controller is configured to adjust an on/off state of the first to third switching devices based on required output of the motor.Type: GrantFiled: July 12, 2022Date of Patent: July 9, 2024Assignees: Hyundai Motor Company, Kia CorporationInventors: Kang Ho Jeong, Jong Kyong Lim, Suk Hyun Lim, Ji Woong Jang, Beom Sik Kim, Sang Cheol Shin
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Publication number: 20240216570Abstract: An air purification module for purifying air includes a photocatalyst filter and a light source unit sequentially arranged in a selected direction. The light source unit is spaced apart from the photocatalyst filter to provide light to the photocatalyst filter and includes a substrate and a light source disposed on the substrate. The substrate includes at least one aperture to control a flow channel and a flow velocity of air so as to improve air purification effects through the photocatalyst filter when the air flows from the substrate towards the photocatalyst filter.Type: ApplicationFiled: March 15, 2024Publication date: July 4, 2024Applicant: SEOUL VIOSYS CO., LTD.Inventors: Jae Hak JEONG, Ji Won KIM, Sang Cheol SHIN
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Publication number: 20240198812Abstract: An electric vehicle may include a motor system having a motor and an inverter, a main battery and an auxiliary battery, and a controller which controls the main battery to be charged by voltage step-up of power of the auxiliary battery through the motor system during driving of the electric vehicle, and controls the auxiliary battery to be charged by voltage step-down of power of the main battery through the motor system when charging the main battery through an external power source.Type: ApplicationFiled: September 18, 2023Publication date: June 20, 2024Applicants: Hyundai Motor Company, Kia CorporationInventors: Ho Tae CHUN, Sang Cheol SHIN, Jae Hoon YOON, Ji Woong JANG, Yoo Jong LEE, Jung Hong JOO, Ki Jong LEE, Kang Ho JEONG
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Publication number: 20240181117Abstract: A deodorization module and a storage device including the deodorization module. A deodorization module includes: a housing; a suction opening formed on the lower surface of the housing to allow external air to be suctioned therethrough; a fan disposed at the suction opening to suction the air; a discharge opening for discharging the air, which has been suctioned by the fan, to the outside of the housing; a photocatalytic bar disposed between the fan and the discharge opening; and a light source module, which includes a light source substrate and an ultraviolet light source and irradiates an ultraviolet ray to the photocatalytic bar.Type: ApplicationFiled: February 8, 2024Publication date: June 6, 2024Applicant: Seoul Viosys Co., Ltd.Inventors: Jae Hak JEONG, Ji Won KIM, Byeong Cheol JU, Sang Cheol SHIN, Woong Ki JUNG
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Patent number: 11976164Abstract: The present disclosure relates to a method of preparing an organic zinc catalyst through solid phase blending that does not require a solvent and a washing process, and a method of preparing a polyalkylene carbonate resin by using the organic zinc catalyst prepared thereby.Type: GrantFiled: December 20, 2019Date of Patent: May 7, 2024Assignee: LG Chem, Ltd.Inventors: Sung Kyoung Kim, Seung Young Park, Sang Cheol Shin, Kyung Min Min
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Publication number: 20240146229Abstract: A motor-driving apparatus for driving a motor having a plurality of windings respectively corresponding to a plurality of phases is provided. The motor-driving apparatus includes a first inverter having a plurality of first switching devices and connected to first ends of the plurality of windings and a second inverter having a plurality of second switching devices and connected to second ends of the plurality of windings. A third switching device is configured to selectively connect and disconnect points at which a number of turns of each of the windings is divided in a preset ratio. A controller is configured to adjust an on/off state of the first to third switching devices based on required output of the motor.Type: ApplicationFiled: January 10, 2024Publication date: May 2, 2024Inventors: Kang Ho Jeong, Jong Kyong Lim, Suk Hyun Lim, Ji Woong Jang, Beom Sik Kim, Sang Cheol Shin
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Publication number: 20240123109Abstract: An air purification module comprises a housing having an interior space provided with an air inlet and an air outlet, and an axial type blowing fan, mounted in the housing, for moving air from the air inlet to the air outlet. The air purification module further includes an air purifying unit, provided on a flow path of the air, for purifying the air and a guide for reducing the flow rate of the air between the blowing fan and the air purifying unit. The air purifying unit includes a filter provided between the blowing fan and the air outlet and a light source unit for providing light to the filter.Type: ApplicationFiled: September 27, 2023Publication date: April 18, 2024Inventors: Ji Won KIM, Jae Hak JEONG, Sang Cheol SHIN, Woong Ki JUNG
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Patent number: 11931490Abstract: An air purification module for purifying air includes a photocatalyst filter and a light source unit sequentially arranged in a selected direction. The light source unit is spaced apart from the photocatalyst filter to provide light to the photocatalyst filter and includes a substrate and a light source disposed on the substrate. The substrate includes at least one aperture to control a flow channel and a flow velocity of air so as to improve air purification effects through the photocatalyst filter when the air flows from the substrate towards the photocatalyst filter.Type: GrantFiled: April 2, 2021Date of Patent: March 19, 2024Assignee: SEOUL VIOSYS CO., LTD.Inventors: Jae Hak Jeong, Ji Won Kim, Sang Cheol Shin
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Patent number: 11936318Abstract: Charging system and method using a motor driving system are proposed. The charging system includes a battery, an inverter to which D.C. power stored in the battery is applied, including a plurality of legs each including two switching elements, a motor including a plurality of coils of which first ends are respectively connected to connection nodes of the switching elements of each of the plurality of legs, and second ends are connected to each other to form a neutral point, and an inverter driving part configured to control switching of the switching elements, so that switching speeds of the switching elements are different for each mode of a motor driving mode and a charging mode so as to change magnitude of charging voltage supplied to the neutral point of the motor and to output the charging voltage to the battery.Type: GrantFiled: June 1, 2022Date of Patent: March 19, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Ji Woong Jang, Sang Cheol Shin, Yoo Jong Lee, Ki Jong Lee, Ho Tae Chun
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Patent number: 11935814Abstract: A motor drive device includes: a first inverter including a plurality of first switching elements and connected to a plurality of coils; a second inverter including a plurality of second switching elements and connected to the plurality of coils; a plurality of transfer switching elements connected to the second ends; a capacitor disposed at one side of a casing of a motor; first and second cooling channels disposed at both sides of the capacitor; a plurality of first power modules including some of the plurality of first switching elements and some of the transfer switching elements; and a plurality of second power modules including some of the plurality of second switching elements.Type: GrantFiled: August 20, 2021Date of Patent: March 19, 2024Assignees: HYUNDAI MOTOR COMPANY, KIA CORPORATIONInventors: Hyun Koo Lee, Jun Hee Park, Sang Cheol Shin, Kang Ho Jeong
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Patent number: 11909343Abstract: A motor-driving apparatus for driving a motor having a plurality of windings respectively corresponding to a plurality of phases is provided. The motor-driving apparatus includes a first inverter having a plurality of first switching devices and connected to first ends of the plurality of windings and a second inverter having a plurality of second switching devices and connected to second ends of the plurality of windings. A third switching device is configured to selectively connect and disconnect points at which a number of turns of each of the windings is divided in a preset ratio. A controller is configured to adjust an on/off state of the first to third switching devices based on required output of the motor.Type: GrantFiled: June 17, 2022Date of Patent: February 20, 2024Assignees: Hyundai Motor Company, Kia CorporationInventors: Kang Ho Jeong, Jong Kyong Lim, Suk Hyun Lim, Ji Woong Jang, Beom Sik Kim, Sang Cheol Shin