Patents by Inventor Dong-hyuk Choi
Dong-hyuk Choi 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: 20240149819Abstract: The present disclosure relates to an interior material for a vehicle and a method for molding the interior material for the vehicle, and more specifically the method for molding an interior material for a vehicle according to the present disclosure includes heating a skin inserted into an upper end heater and a lower end heater spaced apart from each other; preforming the heated skin using an upper mold having a mold temperature set to have a set shape and a lower mold having a second mold temperature; and pressing the preformed skin and a core using a 1-1 mold and a 1-2 mold having set mold temperatures.Type: ApplicationFiled: January 16, 2024Publication date: May 9, 2024Applicants: HYUNDAI MOTOR COMPANY, Kia Corporation, KBI Dongkook Ind. Co., Ltd.Inventors: Jae Hyun An, In Soo Han, Woo Hyun Lim, Kyu Ha Yoo, Dong II Son, Dong Hyuk Choi, Chang Woo Kang, Chang Bok Park, Wan Gyu Choi
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Publication number: 20240130232Abstract: The present specification relates to a heterocyclic compound, an organic light emitting device, and a composition for an organic material layer of an organic light emitting device.Type: ApplicationFiled: July 25, 2023Publication date: April 18, 2024Applicant: LT MATERIALS CO., LTD.Inventors: Hyun-Joo LEE, Geon-Yu PARK, Young-Seok NO, Dong-Jun KIM, Dae-Hyuk CHOI
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Publication number: 20240120584Abstract: A secondary battery includes: a can having an accommodation space therein; an electrode assembly accommodated in the accommodation space in the can; and a cap assembly sealed with the can. The can has a beading part recessed into a side wall of the can at a region below where the cap assembly is accommodated, and the beading part has an acute angle with respect to the side wall of the can.Type: ApplicationFiled: October 11, 2023Publication date: April 11, 2024Inventors: Jun Ho YANG, Woo Hyuk CHOI, Tae Yoon LEE, Jun Hwan KWON, Joung Ku KIM, Hyun Suk PARK, Dong Sub LEE
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Publication number: 20240092776Abstract: Disclosed (or Provided) are a heterocyclic compound and an organic light emitting device including the same.Type: ApplicationFiled: June 22, 2023Publication date: March 21, 2024Applicant: LT MATERIALS CO., LTD.Inventors: Hyung-Jin LEE, Won-Jang JEONG, Dong-Jun KIM, Dae-Hyuk CHOI
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Patent number: 11929497Abstract: A negative electrode active material as well as a method of preparing a negative electrode active material which includes preparing a silicon-based compound including SiOx, wherein 0.5<x<1.3; disposing a polymer layer including a polymer compound on the silicon-based compound; disposing a metal catalyst layer on the polymer layer; heat treating the silicon-based compound on which the polymer layer and the metal catalyst layer are disposed; and removing the metal catalyst layer, wherein the polymer compound includes any one selected from the group consisting of glucose, fructose, galactose, maltose, lactose, sucrose, a phenolic resin, a naphthalene resin, a polyvinyl alcohol resin, a urethane resin, polyimide, a furan resin, a cellulose resin, an epoxy resin, a polystyrene resin, a resorcinol-based resin, a phloroglucinol-based resin, a coal-derived pitch, a petroleum-derived pitch, a tar and a mixture of two or more thereof.Type: GrantFiled: November 1, 2019Date of Patent: March 12, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Dong Hyuk Kim, Eun Kyung Kim, Yong Ju Lee, Rae Hwan Jo, Jung Hyun Choi
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Patent number: 11928251Abstract: Disclosed is a method comprising the steps of: receiving an input of content motion data included in VR content; transmitting, to a motion device, motion control data corresponding to the input content motion data to control movement of the motion device; receiving, from a predetermined sensing apparatus, motion detection data corresponding to a movement state of the motion device; selecting a motion sickness-causing section by using a difference between the motion control data and the motion detection data; generating final motion control data according to a preset algorithm such that the level of motion sickness in the selected motion sickness-causing section is minimized during a preset content reproduction section, and storing the generated final motion control data; and when 3D VR content is reproduced, transmitting, to the motion device, the final motion control data stored in the previous step so as to control the movement of the motion device.Type: GrantFiled: August 28, 2019Date of Patent: March 12, 2024Assignee: 3D INTERACTIVE CO., LTD.Inventors: Dong-Hyuk Kim, Bok-Dong Choi, Jong-Deok Lee
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Patent number: 11925051Abstract: A display device includes: a first base having a display area; light-emitting elements on the first base; and an encapsulation layer over the light-emitting elements. The encapsulation layer includes: a first inorganic layer; an organic layer on the first inorganic layer; and a second inorganic layer on the organic layer. The first inorganic layer includes: a first buffer layer on the light-emitting elements; a first barrier layer on the first buffer layer; a first porous layer on the first barrier layer; a second barrier layer on the first porous layer; and a second buffer layer on the second barrier layer. A refractive index of the first buffer layer, the first barrier layer, and the first porous layer are different from one another, and the refractive index of the first porous layer is smaller than the refractive index of the first buffer layer and the first barrier layer.Type: GrantFiled: May 7, 2021Date of Patent: March 5, 2024Assignee: Samsung Display Co., Ltd.Inventors: Yong Tack Kim, Eung Seok Park, Jae Hyuk Lee, Yoon Hyeung Cho, Dong Uk Choi
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Patent number: 11904786Abstract: The present disclosure relates to an interior material for a vehicle and a method for molding the interior material for the vehicle, and more specifically the method for molding an interior material for a vehicle according to the present disclosure includes heating a skin inserted into an upper end heater and a lower end heater spaced apart from each other; preforming the heated skin using an upper mold having a mold temperature set to have a set shape and a lower mold having a second mold temperature; and pressing the preformed skin and a core using a 1-1 mold and a 1-2 mold having set mold temperatures.Type: GrantFiled: December 23, 2021Date of Patent: February 20, 2024Assignees: Hyundai Motor Company, Kia Corporation, KBI DONGKOOK IND. CO., LTD.Inventors: Jae Hyun An, In Soo Han, Woo Hyun Lim, Kyu Ha Yoo, Dong Il Son, Dong Hyuk Choi, Chang Woo Kang, Chang Bok Park, Wan Gyu Choi
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Publication number: 20230392110Abstract: The present invention relates to antagonist microorganisms for inhibiting fire blight and a composition for preventing or inhibiting fire blight comprising the same as an active ingredient, and provides antagonist microorganisms exhibiting excellent antagonistic ability against a causative bacterium, Erwinia amylovora. According to the present invention, the antagonist microorganisms for inhibiting fire blight isolated in Korea are provided to replace a biological control agent for inhibiting fire blight, which requires enormous costs depending on imports.Type: ApplicationFiled: June 2, 2023Publication date: December 7, 2023Applicant: KNU-INDUSTRY COOPERATION FOUNDATIONInventors: Duck Hwan PARK, Dong Hyuk CHOI, Hyun Ju CHOI, Yeon Ju KIM, Yeon Jeong LIM, In Gyeong LEE
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Publication number: 20230373153Abstract: In an embodiment, a rotatable mold apparatus includes a first mold disposed on a first base structure to be integrally moved together with the first base structure, a second mold disposed on a second base structure to be integrally moved together with the second base structure in order to couple to or decoupled from the first mold, a drive device configured to rotate the first mold and the second mold together when the first mold and the second mold are coupled to each other and support devices rotatably supporting the first mold and the second mold on the first base structure and the second base structure, respectively.Type: ApplicationFiled: December 1, 2022Publication date: November 23, 2023Inventors: Woo Hyoung Cho, Jung Joon Park, Kyu Ha Yoo, Kie Moon Sung, Man Jae Weon, Young Min Park, Dong IL Son, Dong Hyuk Choi, Chang Woo Kang, Young Chan Cho, Young Jin You
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Publication number: 20220203919Abstract: The present disclosure relates to an interior material for a vehicle and a method for molding the interior material for the vehicle, and more specifically the method for molding an interior material for a vehicle according to the present disclosure includes heating a skin inserted into an upper end heater and a lower end heater spaced apart from each other; preforming the heated skin using an upper mold having a mold temperature set to have a set shape and a lower mold having a second mold temperature; and pressing the preformed skin and a core using a 1-1 mold and a 1-2 mold having set mold temperatures.Type: ApplicationFiled: December 23, 2021Publication date: June 30, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KBI Dongkook Ind. Co., Ltd.Inventors: Jae Hyun An, In Soo Han, Woo Hyun Lim, Kyu Ha Yoo, Dong Il Son, Dong Hyuk Choi, Chang Woo Kang, Chang Bok Park, Wan Gyu Choi
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Patent number: 11105230Abstract: An compression-release engine brake opens an exhaust valve at an end of a compression stroke for performing braking function. The compression-release engine brake includes: an exhaust cam including a main cam lobe and a brake cam lobe, an exhaust rocker arm including a roller mounted on one end of the exhaust rocker arm contacting or not contacting the exhaust cam and rotating around a rocker arm shaft by rotation of the exhaust cam, a valve bridge disposed at the other end of the exhaust rocker arm and connected with a pair of exhaust valves, and a reset module disposed between the exhaust rocker arm and valve bridge, contacting the roller with the brake cam lobe according to being suppled of engine brake oil, and exhausting the engine brake oil after opening the exhaust valve by rotation of the exhaust cam.Type: GrantFiled: July 10, 2020Date of Patent: August 31, 2021Assignees: Hyundai Motor Company, KIA Motors CorporationInventors: Kyung Ryull Kim, Dong Hyuk Choi
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Patent number: 11047271Abstract: A compression release type of engine brake socket module is provided between an exhaust rocker arm rotating with respect to a rocker arm shaft and a valve bridge connecting an exhaust valve of an engine. In particular the socket module incudes: a housing which includes an inlet through which brake oil is introduced, a brake piston mounting portion, and a reset member mounting portion communicating with the brake piston mounting portion; a brake piston that is provided to be movable in the brake piston mounting portion; a stopper disposed on one side of an inner space of the housing to limit a moving position of the brake piston; and a reset member that is provided in the reset member mounting portion, and that discharges the brake oil by selectively contacting a push pin coupled to an upper portion of a cylinder head.Type: GrantFiled: July 10, 2020Date of Patent: June 29, 2021Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jae Hee Jeon, Dong Hyuk Choi
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Publication number: 20210102482Abstract: A compression release type of engine brake socket module is provided between an exhaust rocker arm rotating with respect to a rocker arm shaft and a valve bridge connecting an exhaust valve of an engine. In particular the socket module incudes: a housing which includes an inlet through which brake oil is introduced, a brake piston mounting portion, and a reset member mounting portion communicating with the brake piston mounting portion; a brake piston that is provided to be movable in the brake piston mounting portion; a stopper disposed on one side of an inner space of the housing to limit a moving position of the brake piston; and a reset member that is provided in the reset member mounting portion, and that discharges the brake oil by selectively contacting a push pin coupled to an upper portion of a cylinder head.Type: ApplicationFiled: July 10, 2020Publication date: April 8, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jae Hee JEON, Dong Hyuk CHOI
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Publication number: 20210095583Abstract: An compression-release engine brake opens an exhaust valve at an end of a compression stroke for performing braking function. The compression-release engine brake includes: an exhaust cam including a main cam lobe and a brake cam lobe, an exhaust rocker arm including a roller mounted on one end of the exhaust rocker arm contacting or not contacting the exhaust cam and rotating around a rocker arm shaft by rotation of the exhaust cam, a valve bridge disposed at the other end of the exhaust rocker arm and connected with a pair of exhaust valves, and a reset module disposed between the exhaust rocker arm and valve bridge, contacting the roller with the brake cam lobe according to being suppled of engine brake oil, and exhausting the engine brake oil after opening the exhaust valve by rotation of the exhaust cam.Type: ApplicationFiled: July 10, 2020Publication date: April 1, 2021Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Kyung Ryull KIM, Dong Hyuk CHOI
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Patent number: 10301985Abstract: Disclosed is a lubricating apparatus including an oil supply pipe connected to a gearbox of a gearing device for transmitting turning force of a blowdown turbine in the turbo compound system to a crankshaft to supply oil into the gearbox, a first oil supply opening formed to be transpierced at the bearing housing of a first bearing rotatably supporting a shaft of an output gear for outputting turning force in the turbo compound system to supply oil supplied from the gearbox to the first bearing, a sub-supply pipe connected to a gear case in which the output gear is embedded to supply oil to the gear case, and a second oil supply opening formed to be transpierced at the bearing housing of a second bearing rotatably supporting the shaft of the output gear to supply oil supplied through the sub-supply pipe to the second bearing.Type: GrantFiled: December 9, 2016Date of Patent: May 28, 2019Assignee: Hyundai Motor CompanyInventor: Dong Hyuk Choi
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Publication number: 20180058311Abstract: A turbo compound system may include a blowdown turbine disposed at an exhaust gas outlet of a turbocharger turbine, a driveline connecting the blowdown turbine to the crankshaft of the engine to transmit power, an exhaust gas distributor disposed between the turbocharger turbine, a motor auxiliary device connected to the driveline to transmit power, the motor auxiliary device generating rotational force and transmitting the rotational force to a crankshaft of the engine through the driveline to assist output of the engine, and a controller controlling operation of the exhaust gas distributor and the motor auxiliary device.Type: ApplicationFiled: December 8, 2016Publication date: March 1, 2018Applicant: Hyundai Motor CompanyInventor: Dong Hyuk CHOI
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Publication number: 20180058279Abstract: Disclosed is a lubricating apparatus including an oil supply pipe connected to a gearbox of a gearing device for transmitting turning force of a blowdown turbine in the turbo compound system to a crankshaft to supply oil into the gearbox, a first oil supply opening formed to be transpierced at the bearing housing of a first bearing rotatably supporting a shaft of an output gear for outputting turning force in the turbo compound system to supply oil supplied from the gearbox to the first bearing, a sub-supply pipe connected to a gear case in which the output gear is embedded to supply oil to the gear case, and a second oil supply opening formed to be transpierced at the bearing housing of a second bearing rotatably supporting the shaft of the output gear to supply oil supplied through the sub-supply pipe to the second bearing.Type: ApplicationFiled: December 9, 2016Publication date: March 1, 2018Applicant: Hyundai Motor CompanyInventor: Dong Hyuk CHOI
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Patent number: 7643774Abstract: A roller spacing apparatus and an image forming device including the same. The roller spacing apparatus includes a frame, a first rotatable roller member having a first shaft, a second rotatable roller member having a second shaft and being rotatable in a close contact with the first roller member under a predetermined pressure, and at least one spacing part to space apart the first and the second roller members from each other by a predetermined gap such that the first and the second roller members are not in contact with each other when the first and the second roller members are not in use.Type: GrantFiled: October 19, 2006Date of Patent: January 5, 2010Assignee: Samsung Electronics Co., Ltd.Inventor: Dong-hyuk Choi
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Patent number: 7570901Abstract: A roller spacing apparatus and an image forming device including the same. The roller spacing apparatus includes a first roller member that is rotatable, a second roller member that is rotatable in a close contact with the first roller member under a predetermined pressure, and at least one spacing part to space apart the first and the second roller members from each other by a predetermined gap such that the first and the second roller members are not in contact with each other when the first and the second roller members are not in use. The spacing part includes a bushing member that has a bushing to rotatably support a shaft of at least one of the first and the second roller members and a lever disposed at the bushing to rotate the bushing, the bushing having an inner diameter part to support the shaft and an outer diameter part, the inner and outer diameter parts being non-concentric circles, and a stopping member to restrict an operation range of the lever.Type: GrantFiled: May 16, 2006Date of Patent: August 4, 2009Assignee: Samsung Electronics Co., LtdInventor: Dong-hyuk Choi