Patents by Inventor Byoung Woo Ryu
Byoung Woo Ryu 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: 20240136674Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on a winding axis to define a core and an outer circumference. The first electrode includes a first active material portion coated with an active material layer and a first uncoated portion not coated with an active material layer along a winding direction. At least a part of the first uncoated portion is defined as an electrode tab by itself. The first uncoated portion includes a first portion adjacent to the core of the electrode assembly, a second portion adjacent to the outer circumference of the electrode assembly, and a third portion interposed between the first portion and the second portion. The first portion or the second portion has a smaller height than the third portion in the winding axis direction.Type: ApplicationFiled: January 19, 2022Publication date: April 25, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Jong-Sik PARK, Jae-Won LIM, Yu-Sung CHOE, Hak-Kyun KIM, Je-Jun LEE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Pil-Kyu PARK, Kwang-Su HWANGBO, Do-Gyun KIM, Geon-Woo MIN, Hae-Jin LIM, Min-Ki JO, Su-Ji CHOI, Bo-Hyun KANG, Jae-Woong KIM, Ji-Min JUNG, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI
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Publication number: 20240128517Abstract: Disclosed is an electrode assembly, a battery, and a battery pack and a vehicle including the same. In the electrode assembly, a first electrode, a second electrode, and a separator interposed therebetween are wound based on an axis to define a core and an outer circumference. The first electrode includes an uncoated portion at a long side end thereof and exposed out of the separator along a winding axis direction of the electrode assembly. A part of the uncoated portion is bent in a radial direction of the electrode assembly to form a bending surface region that includes overlapping layers of the uncoated portion, and in a partial region of the bending surface region, the number of stacked layers of the uncoated portion is 10 or more in the winding axis direction of the electrode assembly.Type: ApplicationFiled: January 19, 2022Publication date: April 18, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Hae-Jin LIM, Jin-Hak KONG, Soon-O LEE, Kyu-Hyun CHOI, Do-Gyun KIM, Su-Ji CHOI, Kwang-Su HWANGBO, Geon-Woo MIN, Min-Ki JO, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG, Jae-Woong KIM, Jong-Sik PARK, Yu-Sung CHOE, Byoung-Gu LEE, Duk-Hyun RYU, Kwan-Hee LEE, Jae-Eun LEE, Bo-Hyun KANG, Pil-Kyu PARK
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Patent number: 11961797Abstract: A semiconductor device structure, for example a 3D structure, and a method for fabricating a semiconductor device. As non-limiting examples, various aspects of this disclosure provide various semiconductor package structures, and methods for manufacturing thereof, that comprise interposer, interlayer, and/or heat dissipater configurations that provide for low cost, increased manufacturability, and high reliability.Type: GrantFiled: September 8, 2021Date of Patent: April 16, 2024Assignee: Amkor Technology Singapore Holding Pte. Ltd.Inventors: Keun Soo Kim, Jae Yun Kim, Byoung Jun Ahn, Dong Soo Ryu, Dae Byoung Kang, Chel Woo Park
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Patent number: 10965169Abstract: A wireless power transmitter includes: a power supply configured to supply a driving power; a first power transmitter including first bridge switching elements forming a first bridge circuit, and configured to receive the driving power to transmit a first power, wherein a magnitude of a first input voltage applied to the first bridge circuit is determined by a duty of at least one of the first bridge switching elements; a second power transmitter including second bridge switching elements forming a second bridge circuit, and configured to receive the driving power to transmit a second power, wherein a magnitude of a second input voltage applied to the second bridge circuit is determined by a duty of at least one of the second bridge switching elements; and a controller configured to output first and second power transmitting control signals respectively controlling the first bridge switching elements and the second bridge switching elements.Type: GrantFiled: June 19, 2018Date of Patent: March 30, 2021Assignee: WITS Co., Ltd.Inventors: Seung Won Park, Eun Young Shin, Byoung Woo Ryu, Hyo Young Kim, Yun Ki Hong, Young Seung Roh
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Patent number: 10892647Abstract: A wireless power transmitter having a data transmission and reception capability is disclosed. The wireless power transmitter includes a main coil to transmit power, an inverter to apply an alternating current (AC) signal to the main coil, a communication module to output a transmission signal including transmission data to be wirelessly transmitted the wireless power transmitter, and/or receive a reception signal including received data wirelessly received by the wireless power transmitter, a first connecting circuitry to prevent a power signal of the main coil from being input to the communication module, and the auxiliary coil to connect to the main coil and connected to the first connecting circuitry. The main coil or the auxiliary coil may be configured to transmit the transmission data and receive the reception signal, and the auxiliary coil may be wiredly connected to the main coil or not wiredly connected to the main coil.Type: GrantFiled: September 20, 2018Date of Patent: January 12, 2021Assignee: WITS Co., Ltd.Inventors: Se Joo Kim, Jung Woo Choi, Tae Seok Ko, Byoung Woo Ryu
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Patent number: 10873216Abstract: A wireless power transmitter includes: a first power transmitting unit including first switching elements forming a first bridge circuit, and configured to receive input DC voltage and transmit a first power by switching operations of the first switching elements; and a second power transmitting unit including second switching elements forming a second bridge circuit, and configured to receive the input DC voltage and transmit second power by switching operations of the second switching elements. The first power transmitting unit steps-up the input DC voltage according to a duty ratio of one or more of the first switching elements, and applies the stepped-up input DC voltage to the first bridge circuit. The second power transmitting unit steps-up or steps-down the input DC voltage according to a duty ratio of one or more of the second switching elements, and applies the stepped-up or stepped-down input DC voltage to the second bridge circuit.Type: GrantFiled: June 28, 2018Date of Patent: December 22, 2020Assignee: WITS Co., Ltd.Inventors: Eun Young Shin, Hyo Young Kim, Seung Won Park, Byoung Woo Ryu, Young Seung Roh
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Patent number: 10855116Abstract: A power transmitter includes: a first resonator configured to wirelessly supply power to a power receiver and having an impedance that changes in response to a foreign material being proximate to the power transmitter; a second resonator having an impedance that changes in response to the foreign material being proximate to the power receiver; and controller configured to select either one of the first resonator and the second resonator in response to a wireless charging control, and to determine whether the foreign material is proximate to the power transmitter, based on a change in the impedance of the selected one of the first resonator and the second resonator.Type: GrantFiled: August 30, 2017Date of Patent: December 1, 2020Assignee: WITS Co., Ltd.Inventors: Soon Tack Oh, Byoung Woo Ryu, Ji Hoon Kim, Young Seung Roh
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Patent number: 10749381Abstract: A wireless power transmission device including a resonant circuit magnetically coupled to a wireless power reception device and being configured to wirelessly transmit power, an alternating current (AC) generator including switches and being configured to receive a direct current (DC) voltage and to generate an AC current, according to a switching operation of the switches, to be supplied to the resonant circuit, and a variable capacitor connected to an output terminal of the AC generator and having a first capacitance, when a load state of the wireless power reception device is provided as a full load state and a second capacitance lower than the first capacitance, when the load state is provided as a light load state.Type: GrantFiled: November 2, 2017Date of Patent: August 18, 2020Assignee: WITS Co., Ltd.Inventors: Dong Woo Han, Byoung Woo Ryu, Hyo Young Kim, Se Joo Kim, Young Seung Roh
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Publication number: 20190355509Abstract: An electronic device includes a power module that transmits or receives power wirelessly and includes a coil portion that generates a magnetic field; and a heat radiating sheet disposed on one side of the power module. The heat radiating sheet includes line-type conductors arranged to overlap the coil portion and an area-type conductor disposed along a periphery of the line-type conductors.Type: ApplicationFiled: October 15, 2018Publication date: November 21, 2019Applicant: WITS Co., Ltd.Inventors: Soon Joung YIO, Hee Seung KIM, Jae Hyuk JANG, Young Seung ROH, Byoung Woo RYU, Young Ho KIM, Jae Sun WON
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Patent number: 10418857Abstract: A wireless power transmitter includes: a converter including switching elements forming a bridge circuit and configured to output an alternating current (AC) voltage in response to control signals; a resonator including a resonant capacitor and a resonant coil, and configured to receive the AC voltage to transmit power wirelessly; and a controller configured to set a dead time at which a magnitude of the AC voltage is substantially zero in response to a signal received from a wireless power receiver.Type: GrantFiled: October 23, 2017Date of Patent: September 17, 2019Assignee: WITS Co., Ltd.Inventors: Hyo Young Kim, Seung Won Park, Eun Young Shin, Byoung Woo Ryu, Dong Woo Han, Ye Ji Park, Young Seung Roh
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Publication number: 20190173316Abstract: A wireless power transmitter includes: a first power transmitting unit including first switching elements forming a first bridge circuit, and configured to receive input DC voltage and transmit a first power by switching operations of the first switching elements; and a second power transmitting unit including second switching elements forming a second bridge circuit, and configured to receive the input DC voltage and transmit second power by switching operations of the second switching elements. The first power transmitting unit steps-up the input DC voltage according to a duty ratio of one or more of the first switching elements, and applies the stepped-up input DC voltage to the first bridge circuit. The second power transmitting unit steps-up or steps-down the input DC voltage according to a duty ratio of one or more of the second switching elements, and applies the stepped-up or stepped-down input DC voltage to the second bridge circuit.Type: ApplicationFiled: June 28, 2018Publication date: June 6, 2019Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Eun Young SHIN, Hyo Young KIM, Seung Won PARK, Byoung Woo RYU, Young Seung ROH
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Publication number: 20190148966Abstract: A wireless power transmitter includes: a near field communications (NFC) controller configured to communicate with a wireless power receiver in an NFC method using an NFC coil; and a wireless charging controller configured to wirelessly supply power to the wireless power receiver using a power transmitting coil, and to determine whether a cross connection has occurred for the wireless power receiver by comparing first identification information transmitted to the wireless power receiver in the NFC method with second identification information received from the wireless power receiver in a communications method different from the NFC method.Type: ApplicationFiled: June 26, 2018Publication date: May 16, 2019Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Jung Woo CHOI, Tae Seok KO, Byoung Woo RYU
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Publication number: 20190148980Abstract: A wireless power transmitter having a data transmission and reception capability is disclosed. The wireless power transmitter includes a main coil to transmit power, an inverter to apply an alternating current (AC) signal to the main coil, a communication module to output a transmission signal including transmission data to be wirelessly transmitted the wireless power transmitter, and/or receive a reception signal including received data wirelessly received by the wireless power transmitter, a first connecting circuitry to prevent a power signal of the main coil from being input to the communication module, and the auxiliary coil to connect to the main coil and connected to the first connecting circuitry. The main coil or the auxiliary coil may be configured to transmit the transmission data and receive the reception signal, and the auxiliary coil may be wiredly connected to the main coil or not wiredly connected to the main coil.Type: ApplicationFiled: September 20, 2018Publication date: May 16, 2019Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Se Joo KIM, Jung Woo CHOI, Tae Seok KO, Byoung Woo RYU
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Publication number: 20190140484Abstract: A wireless power transmitter includes: a power supply configured to supply a driving power; a first power transmitter including first bridge switching elements forming a first bridge circuit, and configured to receive the driving power to transmit a first power, wherein a magnitude of a first input voltage applied to the first bridge circuit is determined by a duty of at least one of the first bridge switching elements; a second power transmitter including second bridge switching elements forming a second bridge circuit, and configured to receive the driving power to transmit a second power, wherein a magnitude of a second input voltage applied to the second bridge circuit is determined by a duty of at least one of the second bridge switching elements; and a controller configured to output first and second power transmitting control signals respectively controlling the first bridge switching elements and the second bridge switching elements.Type: ApplicationFiled: June 19, 2018Publication date: May 9, 2019Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Seung Won PARK, Eun Young SHIN, Byoung Woo RYU, Hyo Young KIM, Yun Ki HONG, Young Seung ROH
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Publication number: 20180294675Abstract: A wireless power transmission device including a resonant circuit magnetically coupled to a wireless power reception device and being configured to wirelessly transmit power, an alternating current (AC) generator including switches and being configured to receive a direct current (DC) voltage and to generate an AC current, according to a switching operation of the switches, to be supplied to the resonant circuit, and a variable capacitor connected to an output terminal of the AC generator and having a first capacitance, when a load state of the wireless power reception device is provided as a full load state and a second capacitance lower than the first capacitance, when the load state is provided as a light load state.Type: ApplicationFiled: November 2, 2017Publication date: October 11, 2018Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Dong Woo HAN, Byoung Woo RYU, Hyo Young KIM, Se Joo KIM, Young Seung ROH
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Publication number: 20180205269Abstract: A wireless power transmission device includes a power amplifier, a detection device, and a control unit. The power amplifier is configured to receive a direct current (DC) voltage and supply an alternating current (AC) power current to a transmission resonator by performing a switching operation. The detection device is configured to detect a voltage of an output terminal of the power amplifier based on the switching operation. The control unit is configured to detect an external object based on a change in the voltage, and control an output of the power amplifier in response to the change.Type: ApplicationFiled: November 3, 2017Publication date: July 19, 2018Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Dong Woo HAN, Byoung Woo RYU, Young Seung ROH, Se Joo KIM
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Publication number: 20180152051Abstract: A wireless power transmitter includes: a converter including switching elements forming a bridge circuit and configured to output an alternating current (AC) voltage in response to control signals; a resonator including a resonant capacitor and a resonant coil, and configured to receive the AC voltage to transmit power wirelessly; and a controller configured to set a dead time at which a magnitude of the AC voltage is substantially zero in response to a signal received from a wireless power receiver.Type: ApplicationFiled: October 23, 2017Publication date: May 31, 2018Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Hyo Young KIM, Seung Won PARK, Eun Young SHIN, Byoung Woo RYU, Dong Woo HAN, Ye Ji PARK, Young Seung ROH
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Publication number: 20180097408Abstract: A power transmitter includes: a first resonator configured to wirelessly supply power to a power receiver and having an impedance that changes in response to a foreign material being proximate to the power transmitter; a second resonator having an impedance that changes in response to the foreign material being proximate to the power receiver; and controller configured to select either one of the first resonator and the second resonator in response to a wireless charging control, and to determine whether the foreign material is proximate to the power transmitter, based on a change in the impedance of the selected one of the first resonator and the second resonator.Type: ApplicationFiled: August 30, 2017Publication date: April 5, 2018Applicant: Samsung Electro-Mechanics Co., Ltd.Inventors: Soon Tack OH, Byoung Woo RYU, Ji Hoon KIM, Young Seung ROH
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Patent number: 9614450Abstract: A feedback signal generating circuit may include a control voltage adjusting circuit outputting a feedback voltage by comparing a control voltage input from an external voltage source with a reference voltage and adjusting a ratio of control voltage drop, and an amplifying circuit generating a feedback signal by differentially amplifying the feedback voltage and a detection voltage associated with a current flowing in a load.Type: GrantFiled: February 9, 2015Date of Patent: April 4, 2017Assignee: SOLUM CO., LTD.Inventors: Ki Hong Kim, Byoung Woo Ryu, Jung Woo Choi
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Patent number: 9454172Abstract: There is provided a voltage control circuit that is applicable to a LED device, a power supply or the like. The voltage control circuit includes: a voltage dividing unit dividing a supply voltage into a first voltage and a second voltage different from each other; a shunt regulator adjusting the first voltage according to the second voltage; and an output circuit unit outputting the voltage regulated by the shunt regulator.Type: GrantFiled: December 11, 2013Date of Patent: September 27, 2016Assignee: SOLUM CO., LTD.Inventors: Ki Hong Kim, Min Jin Kim, Byoung Woo Ryu, Heung Gyoon Choi