Patents by Inventor Dae-Geun Choi
Dae-Geun 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: 20240143448Abstract: Disclosed herein are a distributed cloud system, a data processing method of the distributed cloud system, a storage medium. The data processing method of the distributed cloud system includes running an application of an edge computing system requested by a user device, generating a snapshot image of the application, and storing the generated snapshot image and transmitting the stored image during migration.Type: ApplicationFiled: October 25, 2023Publication date: May 2, 2024Inventors: Dae-Won KIM, Sun-Wook KIM, Su-Min JANG, Jae-Geun CHA, Hyun-Hwa CHOI
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Patent number: 11916998Abstract: Disclosed herein is a multi-cloud edge system. The multi-cloud edge system includes a core cloud, a multi-cluster-based first edge node system, and a multi-cluster-based near edge node system, wherein the multi-cluster-based first edge node system includes multiple worker nodes, and a master node including a scheduler.Type: GrantFiled: November 11, 2022Date of Patent: February 27, 2024Assignee: Electronics and Telecommunications Research InstituteInventors: Dae-Won Kim, Su-Min Jang, Jae-Geun Cha, Hyun-Hwa Choi, Sun-Wook Kim
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Publication number: 20210354744Abstract: The present embodiments relate to a steering control device, a steering assist device, and a steering system. A steering control device comprises an input-side steering control module controlling an input-side steering motor to assist an input-side mechanism mechanically separated from an output-side mechanism connected with a wheel and connected with a steering wheel. The input-side steering control module may control the input-side steering motor and the telescopic motor.Type: ApplicationFiled: May 11, 2021Publication date: November 18, 2021Inventor: Dae Geun CHOI
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Patent number: 10919566Abstract: An apparatus for controlling a motor for an electric power steering system according to an embodiment of the present invention, the motor including a stator on which a plurality of coils are wound and a rotor, which is placed inside the stator and into which a plurality of magnets are inserted, the plurality of coils being divided into two coil groups, the apparatus includes: a first controller configured to control supply of power applied to a first coil group that is one of the two coil groups; a second controller configured to control supply of power applied to a second coil group that is the other one of the two coil groups; and a boost converter configured to compensate for a difference between power output from the first controller and power output from the second controller.Type: GrantFiled: February 14, 2018Date of Patent: February 16, 2021Assignee: MANDO CORPORATIONInventor: Dae Geun Choi
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Publication number: 20190077443Abstract: The present disclosure relates to an apparatus and method for controlling electric power steering (EPS), and an apparatus for controlling EPS according to an embodiment includes a monitoring unit configured to monitor whether abnormality occurs in a first power being supplied to a first torque sensor, second power being supplied to a second torque sensor, and third power being supplied to a third torque sensor, a selection unit configured to select a torque sensor used to control a quantity of an assist torque of EPS among the first torque sensor, the second torque sensor, and the third torque sensor based on information regarding whether abnormality occurs in the first power, the second power, and the third power, an assist torque controller configured to control the quantity of the assist torque of EPS based on a signal value generated from the selected torque sensor, and a steering angle determination unit configured to determine a steering angle value to be transmitted to an external system based on the iType: ApplicationFiled: September 7, 2018Publication date: March 14, 2019Inventor: Dae Geun CHOI
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Publication number: 20180229762Abstract: An apparatus for controlling a motor for an electric power steering system according to an embodiment of the present invention, the motor including a stator on which a plurality of coils are wound and a rotor, which is placed inside the stator and into which a plurality of magnets are inserted, the plurality of coils being divided into two coil groups, the apparatus includes: a first controller configured to control supply of power applied to a first coil group that is one of the two coil groups; a second controller configured to control supply of power applied to a second coil group that is the other one of the two coil groups; and a boost converter configured to compensate for a difference between power output from the first controller and power output from the second controller.Type: ApplicationFiled: February 14, 2018Publication date: August 16, 2018Inventor: Dae Geun CHOI
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Patent number: 9692015Abstract: An organic light emitting device having a photonic crystal structure and a manufacturing method thereof are provided. The organic light emitting device comprises: a substrate through which light passes; a photonic crystal layer formed on the substrate and having a photonic crystal structure; an intermediate layer formed on the photonic crystal layer and having a large refractive index compared with the photonic crystal layer; a first electrode layer formed on the intermediate layer; a light emitting layer formed on the first electrode layer and emitting light according to current flow; and a second electrode layer formed on the light emitting layer.Type: GrantFiled: January 3, 2012Date of Patent: June 27, 2017Assignee: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Jong-Youp Shim, Jun-Ho Jeong, Ki-Don Kim, Dae-Geun Choi, Jun-Hyuk Choi, Eung-Sug Lee, So-Hee Jeon, Jae-R. Youn, Jang-Joo Kim
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Patent number: 8803459Abstract: Disclosed is a steering control apparatus having a structure by which it is possible to efficiently dissipate high heat that may be generated, simplify a manufacturing process, and reduce manufacturing costs.Type: GrantFiled: October 3, 2011Date of Patent: August 12, 2014Assignee: Mando CorporationInventor: Dae Geun Choi
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Patent number: 8486753Abstract: Disclosed are a patterning method of a metal oxide thin film using nanoimprinting, and a manufacturing method of a light emitting diode (LED). The method for forming a metal oxide thin film pattern using nanoimprinting includes: coating a photosensitive metal-organic material precursor solution on a substrate; preparing a mold patterned to have a protrusion and depression structure; pressurizing the photosensitive metal-organic material precursor coating layer with the patterned mold; forming a cured metal oxide thin film pattern by heating the pressurized photosensitive metal-organic material precursor coating layer or by irradiating ultraviolet rays to the pressurized photosensitive metal-organic material precursor coating layer while being heated; and removing the patterned mold from the metal oxide thin film pattern, and selectively further includes annealing the metal oxide thin film pattern.Type: GrantFiled: February 2, 2010Date of Patent: July 16, 2013Assignee: Korea Institute of Machinery and MaterialsInventors: Hyeong Ho Park, Jun Ho Jeong, Ki Don Kim, Dae Geun Choi, Jun Hyuk Choi, Ji Hye Lee, Soon Won Lee
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Patent number: 8247962Abstract: An organic light emitting device having a photonic crystal structure and a manufacturing method thereof are provided. The organic light emitting device comprises: a substrate through which light passes; a photonic crystal layer formed on the substrate and having a photonic crystal structure; an intermediate layer formed on the photonic crystal layer and having a large refractive index compared with the photonic crystal layer; a first electrode layer formed on the intermediate layer; a light emitting layer formed on the first electrode layer and emitting light according to current flow; and a second electrode layer formed on the light emitting layer.Type: GrantFiled: November 19, 2008Date of Patent: August 21, 2012Assignee: Korea Institute of Machinery & MaterialsInventors: Jong-Youp Shim, Jun-Ho Jeong, Ki-Don Kim, Dae-Geun Choi, Jun-Hyuk Choi, Eung-Sug Lee, So-Hee Jeon, Jae-R Youn, Jang-Joo Kim
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Patent number: 8216542Abstract: A method for separating carbon nanotubes is disclosed where nanotubes with specific properties are separated from a mixture of nanotube products, which contains various types of nanotubes and impurities.Type: GrantFiled: February 22, 2006Date of Patent: July 10, 2012Assignee: Korea Institute of Machinery And MaterialsInventors: Chang-Soo Han, Jin-Won Song, June-Ki Park, Jong-Hong Lee, Hee-Won Seo, Ji-Eun Kim, Dae-Geun Choi
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Publication number: 20120100773Abstract: An organic light emitting device having a photonic crystal structure and a manufacturing method thereof are provided. The organic light emitting device comprises: a substrate through which light passes; a photonic crystal layer formed on the substrate and having a photonic crystal structure; an intermediate layer formed on the photonic crystal layer and having a large refractive index compared with the photonic crystal layer; a first electrode layer formed on the intermediate layer; a light emitting layer formed on the first electrode layer and emitting light according to current flow; and a second electrode layer formed on the light emitting layer.Type: ApplicationFiled: January 3, 2012Publication date: April 26, 2012Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Jong-Youp SHIM, Jun-Ho Jeong, Ki-Don Kim, Dae-Geun Choi, Jun-Hyuk Choi, Eung-Sug Lee, So-Hee Jeon, Jae-R. Youn, Jang-Joo Kim
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Publication number: 20120081055Abstract: Disclosed is a steering control apparatus having a structure by which it is possible to efficiently dissipate high heat that may be generated, simplify a manufacturing process, and reduce manufacturing costs.Type: ApplicationFiled: October 3, 2011Publication date: April 5, 2012Inventor: Dae Geun CHOI
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Patent number: 7994053Abstract: A method for forming a metal oxide thin film pattern using nanoimprinting according to one embodiment of the present invention includes: coating a photosensitive metal-organic material precursor solution on a substrate; pressurizing the photosensitive metal-organic material precursor coating layer to a mold patterned to have a protrusion and depression structure; forming the metal oxide thin film pattern by irradiating ultraviolet rays to the pressurized photosensitive metal-organic material precursor coating layer to cure it; and removing the patterned mold from the metal oxide thin film pattern.Type: GrantFiled: December 30, 2009Date of Patent: August 9, 2011Assignee: Korea Institute of Machinery & MaterialsInventors: Hyeong-Ho Park, Dae-Geun Choi, Jun-Ho Jeong, Ki-Don Kim, Jun-Hyuk Choi, Ji-Hye Lee, Seong-Je Park, So-Hee Jeon, Sa-Rah Kim
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Publication number: 20110169027Abstract: Disclosed are a patterning method of a metal oxide thin film using nanoimprinting, and a manufacturing method of a light emitting diode (LED). The method for forming a metal oxide thin film pattern using nanoimprinting includes: coating a photosensitive metal-organic material precursor solution on a substrate; preparing a mold patterned to have a protrusion and depression structure; pressurizing the photosensitive metal-organic material precursor coating layer with the patterned mold; forming a cured metal oxide thin film pattern by heating the pressurized photosensitive metal-organic material precursor coating layer or by irradiating ultraviolet rays to the pressurized photosensitive metal-organic material precursor coating layer while being heated; and removing the patterned mold from the metal oxide thin film pattern, and selectively further includes annealing the metal oxide thin film pattern.Type: ApplicationFiled: February 2, 2010Publication date: July 14, 2011Applicant: Korea Institute of Machinery & MaterialsInventors: Hyeong-Ho Park, Jun-Ho Jeong, Ki-Don Kim, Dae-Geun Choi, Jun-Hyuk Choi, Ji-Hye Lee, Soon-Won Lee
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Patent number: 7914693Abstract: The present invention relates to a micro/nano imprint lithography technique and in particular, to a stamp that is used in an UV-micro/nano imprint lithography process or thermal micro/nano imprint lithography process and a method for fabricating the stamp. The method for fabricating a stamp for micro/nano imprint lithography of the present invention includes i) depositing a thin film of diamond-like carbon on a substrate, ii) applying resist on the diamond-like carbon thin film, iii) patterning the resist, iv) etching the diamond-like carbon thin film by using the resist as a protective layer, and v) removing the resist.Type: GrantFiled: October 18, 2006Date of Patent: March 29, 2011Assignee: Korea Institute of Machinery & MaterialsInventors: Jun-Ho Jeong, Young-Suk Sim, Ki-Don Kim, Dae-Geun Choi, Eung-Sug Lee
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Publication number: 20110049548Abstract: A method for forming a metal oxide thin film pattern using nanoimprinting according to one embodiment of the present invention includes: coating a photosensitive metal-organic material precursor solution on a substrate; pressurizing the photosensitive metal-organic material precursor coating layer to a mold patterned to have a protrusion and depression structure; forming the metal oxide thin film pattern by irradiating ultraviolet rays to the pressurized photosensitive metal-organic material precursor coating layer to cure it; and removing the patterned mold from the metal oxide thin film pattern.Type: ApplicationFiled: December 30, 2009Publication date: March 3, 2011Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Hyeong-Ho Park, Dae-Geun Choi, Jun-Ho Jeong, Ki-Don Kim, Jun-Hyuk Choi, Ji-hye Lee, Seong-Je Park, So-Hee Jeon, Sa-Rah Kim
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Publication number: 20110024333Abstract: A method for separating carbon nanotubes is disclosed where nanotubes with specific properties are separated from a mixture of nanotube products, which contains various types of nanotubes and impurities.Type: ApplicationFiled: February 22, 2006Publication date: February 3, 2011Inventors: Chang-Soo Han, Jin-Won Song, June-Ki Park, Jong-Hong Lee, Hee-Won Seo, Ji-Eun Kim, Dae-Geun Choi
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Publication number: 20090128022Abstract: An organic light emitting device having a photonic crystal structure and a manufacturing method thereof are provided. The organic light emitting device comprises: a substrate through which light passes; a photonic crystal layer formed on the substrate and having a photonic crystal structure; an intermediate layer formed on the photonic crystal layer and having a large refractive index compared with the photonic crystal layer; a first electrode layer formed on the intermediate layer; a light emitting layer formed on the first electrode layer and emitting light according to current flow; and a second electrode layer formed on the light emitting layer.Type: ApplicationFiled: November 19, 2008Publication date: May 21, 2009Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Jong-Youp SHIM, Jun-Ho Jeong, Ki-Don Kim, Dae-Geun Choi, Jun-Hyuk Choi, Eung-Sug Lee, So-Hee Jeon, Jae-R Youn, Jang-Joo Kim
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Publication number: 20070158872Abstract: The present invention relates to a micro/nano imprint lithography technique and in particular, to a stamp that is used in an UV-micro/nano imprint lithography process or thermal micro/nano imprint lithography process and a method for fabricating the stamp. The method for fabricating a stamp for micro/nano imprint lithography of the present invention includes i) depositing a thin film of diamond-like carbon on a substrate, ii) applying resist on the diamond-like carbon thin film, iii) patterning the resist, iv) etching the diamond-like carbon thin film by using the resist as a protective layer, and v) removing the resist.Type: ApplicationFiled: October 18, 2006Publication date: July 12, 2007Inventors: Jun-Ho Jeong, Young-Suk Sim, Ki-Don Kim, Dae-Geun Choi, Eung-Sug Lee