Patents by Inventor Sang Kwak
Sang Kwak 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: 20240132375Abstract: A positive electrode active material for a lithium secondary battery has secondary micro particles having an average particle size (D50) of 1 to 10 ?m formed by agglomeration of primary macro particles having an average particle size (D50) of 0.5 to 3 ?m and a lithium-M oxide coating layer on all or part of a surface, wherein M is at least one selected from the group consisting of boron, cobalt, manganese and magnesium. The secondary macro particles have an average particle size (D50) of 5 to 20 ?m formed by agglomeration of primary micro particles having a smaller average particle size (D50) than the primary macro particles. The primary macro particles and the primary micro particles are represented by LiaNi1?b?c?dCobMncQdO2+?, wherein 1.0?a?1.5, 0<b<0.2, 0<c<0.2, 0?d?0.1, 0<b+c+d?0.2, ?0.1???1.0, and Q is at least one type of metal selected from the group consisting of Al, Mg, V, Ti and Zr.Type: ApplicationFiled: January 14, 2022Publication date: April 25, 2024Applicant: LG Energy Solution, Ltd.Inventors: Eun-Sol Lho, Joong-Yeop Do, Kang-Joon Park, Gi-Beom Han, Min Kwak, Sang-Min Park, Dae-Jin Lee, Sang-Wook Lee, Wang-Mo Jung
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Patent number: 11962321Abstract: There is provided an analog-stochastic converter for converting an analog voltage signal into a pulse signal having a corresponding probability. The analog-stochastic converter is implemented using a threshold switching element and a simple logic circuit, thereby reducing a size of the analog-stochastic converter and enabling a low power operation thereof. In addition, in order to update a weight, instead of an analog signal, a probability signal is applied using the above-described analog-stochastic converter, thereby updating a weight in a fully-parallel manner in a synaptic element array having an intersection structure. Accordingly, it is possible to shorten a time for weight update.Type: GrantFiled: November 22, 2021Date of Patent: April 16, 2024Assignee: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATIONInventors: Hyun Sang Hwang, Myoung Hoon Kwak
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Publication number: 20240105934Abstract: A positive electrode active material for a lithium secondary battery has a mixture of microparticles having a predetermined average particle size (D50) and macroparticles having a larger average particle size (D50) than the microparticles. The microparticles have the average particle size (D50) of 1 to 10 ?m and are at least one selected from the group consisting of particles having a carbon material coating layer on all or part of a surface of primary macroparticles having an average particle size (D50) of 1 ?m or more, particles having a carbon material coating layer on all or part of a surface of secondary particles formed by agglomeration of the primary macroparticles, and a mixture thereof. The macroparticles are secondary particles having an average particle size (D50) of 5 to 20 ?m formed by agglomeration of primary microparticles having a smaller average particle size (D50) than the primary macroparticles.Type: ApplicationFiled: June 9, 2022Publication date: March 28, 2024Applicant: LG Energy Solution, Ltd.Inventors: Gi-Beom Han, Jong-Woo Kim, Eun-Sol Lho, Kang-Joon Park, Min Kwak, Seul-Ki Kim, Hyeong-Il Kim, Sang-Min Park, Sang-Wook Lee, Wang-Mo Jung
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Publication number: 20240092228Abstract: A seat for a vehicle, includes a second row center seat and a second row side seat provided on a partition wall positioned rearward of a driver seat, the second row center seat may move leftward or rightward, and an interval between the seats may be increased in a state in which the second row center seat is moved in a right direction away from the second row side seat, which makes it possible to maximally prevent body contact between a passenger in the second row center seat and a passenger in the second row side seat.Type: ApplicationFiled: January 20, 2023Publication date: March 21, 2024Applicants: Hyundai Motor Company, Kia Corporation, Hyundai Transys Inc.Inventors: Jung Sang YOU, Yong Chul Kim, Dae Hee Lee, Eun Sue Kim, Jae Hoon Cho, Han Kyung Park, Jae Sung Shin, Hae Dong Kwak, Jun Sik Hwang, Gwon Hwa Bok
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Patent number: 11936969Abstract: A camera module includes: a first substrate on which an image sensor configured to convert an optical signal incident through a lens module into an electrical signal is disposed and a first connection terminal is disposed; a second substrate spaced apart from the first substrate and including a second connection terminal formed in a position facing the first connection terminal; and a terminal connector electrically connecting the first connection terminal and the second connection terminal to each other and configured to maintain a preset distance between the first substrate and the second substrate. In the camera module, the terminal connector includes: a connecting member including a first connection portion, a second connection portion, and a deformable portion; and a support member configured to maintain the preset distance between the first substrate and the second substrate.Type: GrantFiled: May 24, 2022Date of Patent: March 19, 2024Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Se Yeon Hwang, Hyun Sang Kwak, Yeo Ok Jeon, Joon Woo Gi, Seok Hwan Kim
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Patent number: 11925922Abstract: The present invention relates to a method of improving the corrosion resistance of a metal substrate surface using an oxygen reduction catalyst, which may improve the corrosion resistance of the metal substrate surface by coating the metal substrate surface with the oxygen reduction catalyst so that the metal substrate surface is changed to a passive state through the action of the oxygen reduction catalyst in an environment in which a stable oxide layer is not spontaneously formed on the metal substrate surface. The present invention has an advantage in that it can dramatically improve the corrosion resistance of the metal substrate under a corrosive environment by allowing a recoverable oxide layer to be formed on the metal substrate surface through the action of the oxygen reduction catalyst, applied to the surface, even in an environment in which an oxide layer is not spontaneously formed on the metal substrate.Type: GrantFiled: March 7, 2022Date of Patent: March 12, 2024Assignee: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATIONInventors: Yong-Tae Kim, Jaeik Kwak, Hyoung Seop Kim, Sujung Son, Sang-Mun Jung
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Publication number: 20240067056Abstract: The present disclosure relates to a vehicle rear seat including: a center seat; and side seats located on the left and right of the center seat, wherein, the center seat is capable of protruding by moving the center seat forward with respect to the side seats, and in the state in which the center seat protrudes forward, it is possible to increase an inter-passenger distance so that physical contact between the passenger of the center seat and the passenger of each of the side seats can be prevented as much as possible.Type: ApplicationFiled: March 6, 2023Publication date: February 29, 2024Inventors: Jung Sang You, Yong Chul Kim, Dae Hee Lee, Eun Sue Kim, Jae Hoon Cho, Han Kyung Park, Jae Sung Shin, Hae Dong Kwak, Jun Sik Hwang, Gwon Hwa Bok
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Patent number: 11812552Abstract: A printed circuit board, includes: a first insulating layer on which a wiring line is disposed; a second insulating layer covering an upper portion of the wiring line; a first conductive shield wall spaced apart from two opposing sides of the wiring line in a width direction of the wiring line, and extending in a length direction of the wiring line; and a second conductive shield wall spaced apart from two opposing ends of the first conductive shield wall in the length direction, and extending the a width direction. At least one of the first conductive shield wall or the second conductive shield wall includes a plurality of via walls each extending in a thickness direction of the first insulating layer and the second insulating layer and having a gap is disposed therebetween.Type: GrantFiled: April 2, 2021Date of Patent: November 7, 2023Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Chul Mun Kang, Sang Jong Lee, Hyun Sang Kwak, Chi Hyeon Jeong, Seong Hwan Lee
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Publication number: 20230343519Abstract: A capacitor component, includes: a body including first and second surfaces opposing each other in a first direction, wherein, in the body, a first internal electrode, a second internal electrode, a first dielectric layer interposed between the first and second internal electrodes, and a second dielectric layer disposed on the second internal electrode are wound in the first direction as a winding axis; a first external electrode disposed on the first surface and connected to the first internal electrode; and a second external electrode disposed on the second surface and connected to the second internal electrode. The first internal electrode and the second internal electrode include different metals.Type: ApplicationFiled: July 28, 2022Publication date: October 26, 2023Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Sang Jong LEE, Min Cheol PARK, Chi Hyeon JEONG, Seong Hwan LEE, Hyun Sang KWAK
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Publication number: 20230307179Abstract: A multilayer capacitor includes: a body including a capacitance region in which at least one first internal electrode and at least one second internal electrode are alternately laminated in a first direction with at least one dielectric layer interposed therebetween; and first and second external electrodes spaced apart from each other and respectively disposed on first and second surfaces of the body, the first and second surfaces opposing each other. The body further includes a first via electrode, connecting the at least one first internal electrode and the first external electrode to each other in the first direction, and a second via electrode connecting the at least one second internal electrode and the second external electrode to each other in the first direction.Type: ApplicationFiled: June 28, 2022Publication date: September 28, 2023Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Min Cheol PARK, Sang Jong LEE, Hyung Joon KIM, Hyun Sang KWAK, Chi Hyeon JEONG, Seong Hwan LEE
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Patent number: 11687157Abstract: The present invention relates to a brain-computer interface system and a method for recognizing a conversation intention of a user using the same in addition to inferring the waveform of word sound intended by a user from an imagined speech brainwave associated with a word intended by a user, since the user can intuitively recognize the sentence he/she wants to speak through the imagined speech by classifying words that are most relevant to the imagined speech brainwave of the user in a database in which a word often used by the user or frequently used in a specific situation is stored and by generating a sentence intended by the user by recognizing the words classified in this way, it is possible to perform communication by only thoughts of the user.Type: GrantFiled: January 25, 2022Date of Patent: June 27, 2023Assignee: Korea University Research and Business FoundationInventors: Seong-Whan Lee, Ji-Hoon Jeong, No-Sang Kwak, Seo-Hyun Lee
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Publication number: 20230199291Abstract: A camera module includes: a first substrate on which an image sensor configured to convert an optical signal incident through a lens module into an electrical signal is disposed and a first connection terminal is disposed; a second substrate spaced apart from the first substrate and including a second connection terminal formed in a position facing the first connection terminal; and a terminal connector electrically connecting the first connection terminal and the second connection terminal to each other and configured to maintain a preset distance between the first substrate and the second substrate. In the camera module, the terminal connector includes: a connecting member including a first connection portion, a second connection portion, and a deformable portion; and a support member configured to maintain the preset distance between the first substrate and the second substrate.Type: ApplicationFiled: May 24, 2022Publication date: June 22, 2023Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Se Yeon HWANG, Hyun Sang KWAK, Yeo Ok JEON, Joon Woo GI, Seok Hwan KIM
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Patent number: 11488942Abstract: A package structure includes a first package including a first substrate and a first molded portion disposed on the first substrate; and a rigid-flexible substrate disposed on at least a portion of the first package and having a rigid region and a flexible region. The first molded portion is disposed between the first substrate and the rigid-flexible substrate.Type: GrantFiled: February 19, 2021Date of Patent: November 1, 2022Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Chi Hyeon Jeong, Seong Hwan Lee, Sang Jong Lee, Hyun Sang Kwak
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Publication number: 20220192014Abstract: A printed circuit board, includes: a first insulating layer on which a wiring line is disposed; a second insulating layer covering an upper portion of the wiring line; a first conductive shield wall spaced apart from two opposing sides of the wiring line in a width direction of the wiring line, and extending in a length direction of the wiring line; and a second conductive shield wall spaced apart from two opposing ends of the first conductive shield wall in the length direction, and extending the a width direction. At least one of the first conductive shield wall or the second conductive shield wall includes a plurality of via walls each extending in a thickness direction of the first insulating layer and the second insulating layer and having a gap is disposed therebetween.Type: ApplicationFiled: April 2, 2021Publication date: June 16, 2022Inventors: Chul Mun Kang, Sang Jong Lee, Hyun Sang Kwak, Chi Hyeon Jeong, Seong Hwan Lee
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Publication number: 20220157794Abstract: A package structure includes a first package including a first substrate and a first molded portion disposed on the first substrate; and a rigid-flexible substrate disposed on at least a portion of the first package and having a rigid region and a flexible region. The first molded portion is disposed between the first substrate and the rigid-flexible substrate.Type: ApplicationFiled: February 19, 2021Publication date: May 19, 2022Inventors: Chi Hyeon Jeong, Seong Hwan Lee, Sang Jong Lee, Hyun Sang Kwak
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Publication number: 20220147145Abstract: The present invention relates to a brain-computer interface system and a method for recognizing a conversation intention of a user using the same in addition to inferring the waveform of word sound intended by a user from an imagined speech brainwave associated with a word intended by a user, since the user can intuitively recognize the sentence he/she wants to speak through the imagined speech by classifying words that are most relevant to the imagined speech brainwave of the user in a database in which a word often used by the user or frequently used in a specific situation is stored and by generating a sentence intended by the user by recognizing the words classified in this way, it is possible to perform communication by only thoughts of the user.Type: ApplicationFiled: January 25, 2022Publication date: May 12, 2022Applicant: Korea University Research and Business FoundationInventors: Seong-Whan LEE, Ji-Hoon JEONG, No-Sang KWAK, Seo-Hyun LEE
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Brain-computer interface system and method for decoding user's conversation intention using the same
Patent number: 11269413Abstract: The present invention relates to a brain-computer interface system and a method for recognizing a conversation intention of a user using the same in addition to inferring the waveform of word sound intended by a user from an imagined speech brainwave associated with a word intended by a user, since the user can intuitively recognize the sentence he/she wants to speak through the imagined speech by classifying words that are most relevant to the imagined speech brainwave of the user in a database in which a word often used by the user or frequently used in a specific situation is stored and by generating a sentence intended by the user by recognizing the words classified in this way, it is possible to perform communication by only thoughts of the user.Type: GrantFiled: November 7, 2019Date of Patent: March 8, 2022Assignee: Korea University Research and Business FoundationInventors: Seong-Whan Lee, Ji-Hoon Jeong, No-Sang Kwak, Seo-Hyun Lee -
Patent number: 11191922Abstract: The method for inducing sleep by a sleep inducing system includes acquiring brain signals of a user as sleeping time passes; calculating a functional connectivity value between two channels for each frequency based on the acquired brain signals and performing brain network analysis; determining the stage of sleep of the user based on features of the analyzed brain network; determining a target frequency according to the determined stage of sleep and generating a binaural beat with which the brain signals of the user are induced to the target frequency; combining the generated binaural beat with ASMR information; providing the combined auditory stimulus information to the user; and determining whether the current stage of sleep of the user is maintained at an appropriate proportion with respect to total sleep time, determining whether or not to induce the next stage of sleep, and performing feedback according to the result of determination.Type: GrantFiled: April 30, 2019Date of Patent: December 7, 2021Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATIONInventors: Seong-Whan Lee, Minji Lee, Chae Bin Song, No Sang Kwak
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Patent number: 10795441Abstract: An exemplary embodiment of the present disclosure provides a method of recognizing, by a controller, an intention of a user who wears a head mounted display to which electroencephalogram electrodes are attached.Type: GrantFiled: August 30, 2018Date of Patent: October 6, 2020Assignee: KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATIONInventors: Seong-Whan Lee, No-Sang Kwak
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BRAIN-COMPUTER INTERFACE SYSTEM AND METHOD FOR DECODING USER'S CONVERSATION INTENTION USING THE SAME
Publication number: 20200142481Abstract: The present invention relates to a brain-computer interface system and a method for recognizing a conversation intention of a user using the same in addition to inferring the waveform of word sound intended by a user from an imagined speech brainwave associated with a word intended by a user, since the user can intuitively recognize the sentence he/she wants to speak through the imagined speech by classifying words that are most relevant to the imagined speech brainwave of the user in a database in which a word often used by the user or frequently used in a specific situation is stored and by generating a sentence intended by the user by recognizing the words classified in this way, it is possible to perform communication by only thoughts of the user.Type: ApplicationFiled: November 7, 2019Publication date: May 7, 2020Applicant: Korea University Research and Business FoundationInventors: Seong-Whan LEE, Ji-Hoon JEONG, No-Sang KWAK, Seo-Hyun LEE