Patents by Inventor Joon-Ho Choi
Joon-Ho 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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Patent number: 12207907Abstract: An apparatus for and a method for estimating blood pressure are provided. The apparatus for estimating blood pressure includes: a sensor configured to measure a pulse wave signal from an object; and a processor configured to obtain a mean arterial pressure (MAP) based on the pulse wave signal, configured to classify a phase of the obtained MAP according to at least one classification criterion, and to obtain a systolic blood pressure (SBP) by using an estimation model corresponding to the classified phase of the MAP among estimation models corresponding to respective phases of the MAP.Type: GrantFiled: November 13, 2020Date of Patent: January 28, 2025Assignees: SAMSUNG ELECTRONICS CO., LTD., IUCF-HYU (INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY)Inventors: Sang Kon Bae, Joon-Hyuk Chang, Chang Mok Choi, Youn Ho Kim, Jin Woo Choi, Jehyun Kyung, Tae-Jun Park, Joon-Young Yang, Inmo Yeon
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Patent number: 11957669Abstract: One aspect of the present disclosure is a pharmaceutical composition which includes (R)—N-[1-(3,5-difluoro-4-methansulfonylamino-phenyl)-ethyl]-3-(2-propyl-6-trifluoromethyl-pyridin-3-yl)-acrylamide as a first component and a cellulosic polymer as a second component, wherein the composition of one aspect of the present disclosure has a formulation characteristic in which crystal formation is delayed for a long time.Type: GrantFiled: August 10, 2018Date of Patent: April 16, 2024Assignee: AMOREPACIFIC CORPORATIONInventors: Joon Ho Choi, Won Kyung Cho, Kwang-Hyun Shin, Byoung Young Woo, Ki-Wha Lee, Min-Soo Kim, Jong Hwa Roh, Mi Young Park, Young-Ho Park, Eun Sil Park, Jae Hong Park
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Publication number: 20230017150Abstract: A hydrogel stent for cerebral aneurysm includes a hydrogel polymer, and a stent body wrapping at least a portion of the hydrogel polymer. The stent body is expandable in a cerebral aneurysm of a blood vessel. The stent body is provided in a mesh type surrounding at least a portion of the hydrogel polymers. An embolization device for cerebral aneurysm, includes a hydrogel stent for cerebral aneurysm; a micro-conduit providing a movement path for guiding the hydrogel stent to a cerebral aneurysm of a blood vessel; and a pusher wire connected to the hydrogel stent to be movable in the movement path.Type: ApplicationFiled: July 15, 2022Publication date: January 19, 2023Applicants: THE ASAN FOUNDATION, UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATIONInventors: Deok Hee LEE, Seon Moon HWANG, Joon Ho CHOI
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Publication number: 20220265279Abstract: An anchor for an embolic coil, and an embolic coil including the same are provided. The anchor for an embolic coil includes a hollow main body and a central shaft arranged in the hollow main body, wherein the hollow main body is made of a braided composite filament including a polymer filament and a first alloy filament, and the central shaft includes a second alloy filament that is a material different from the first alloy filament.Type: ApplicationFiled: July 17, 2020Publication date: August 25, 2022Inventors: Deok Hee LEE, Hong Hee JUNG, Eu Gene LIH, Dae Hyung LEE, Seung Hyun LEE, Ye Ji CHOI, Mi Ri KIM, Yun Sun SONG, Seon Moon HWANG, Joon Ho CHOI, Tae Il KIM, Seng Yong CHUN, Jun Hyun KIM, Jun Young MAENG, Ga Young LEE
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Publication number: 20220184317Abstract: The present invention may provide a medical syringe comprising: a cylinder including a stopper protruding inward; and a plunger disposed inside the cylinder so as to move back and forth in a first direction, wherein the plunger includes a plurality of protrusions, and the plurality of protrusions are arranged at intervals along the longitudinal direction of the plunger, and based on the first direction, any one of the stopper or the plurality of protrusions is arranged so as to be selectively overlapped according to the rotation of the plunger.Type: ApplicationFiled: February 25, 2020Publication date: June 16, 2022Inventors: Sun CHUNG, Kyung Ah KIM, Seon Moon HWANG, Joon Ho CHOI, Yun Sun SONG, Deok Hee LEE
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Publication number: 20200215040Abstract: One aspect of the present disclosure is a pharmaceutical composition which includes (R)—N-[1-(3,5-difluoro-4-methansulfonylamino-phenyl)-ethyl]-3-(2-propyl-6-trifluoromethyl-pyridin-3-yl)-acrylamide as a first component and a cellulosic polymer as a second component, wherein the composition of one aspect of the present disclosure has a formulation characteristic in which crystal formation is delayed for a long time.Type: ApplicationFiled: August 10, 2018Publication date: July 9, 2020Applicant: AMOREPACIFIC CORPORATIONInventors: Joon Ho CHOI, Won Kyung CHO, Kwang-Hyun SHIN, Byoung Young WOO, Ki-Wha LEE, Min-Soo KIM, Jong Hwa ROH, Mi Young PARK, Young-Ho PARK, Eun Sil PARK, Jae Hong PARK
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Patent number: 9997919Abstract: An apparatus for operating a distributed generator in connection with a power system includes an input unit which receives a parameter calculated using power system information and a voltage and a current at a point of common coupling with the distributed generator, with which the distributed generator is connected, a calculation unit which calculates an operating power factor instruction value and an active output instruction value using the parameter and the voltage and current at the point of common coupling with the distributed generator input to the input unit, and a control communication unit which determines and transmits the operating power factor instruction value and the active output instruction value according to the voltage at the point of common coupling with the distributed generator input to the input unit and an admissible voltage upper limit at the point of common coupling with the distributed generator to the distributed generator.Type: GrantFiled: September 27, 2013Date of Patent: June 12, 2018Assignee: KOREA ELECTRIC POWER CORPORATIONInventors: Seong Soo Cho, Won Wook Jung, Il Keun Song, Sang Ok Kim, Joon Ho Choi
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Publication number: 20160072290Abstract: An apparatus for operating a distributed generator in connection with a power system includes an input unit which receives a parameter calculated using power system information and a voltage and a current at a point of common coupling with the distributed generator, with which the distributed generator is connected, a calculation unit which calculates an operating power factor instruction value and an active output instruction value using the parameter and the voltage and current at the point of common coupling with the distributed generator input to the input unit, and a control communication unit which determines and transmits the operating power factor instruction value and the active output instruction value according to the voltage at the point of common coupling with the distributed generator input to the input unit and an admissible voltage upper limit at the point of common coupling with the distributed generator to the distributed generator.Type: ApplicationFiled: September 27, 2013Publication date: March 10, 2016Applicant: KOREA ELECTRIC POWER CORPORATIONInventors: Seong Soo CHO, Won Wook JUNG, Il Keun SONG, Sang Ok KIM, Joon Ho CHOI
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Patent number: 8045787Abstract: Provided are a system for analyzing a mask topography, which can reduce calculation time and increase calculation accuracy in consideration of a mask topography effect, and a method of forming an image using the system. The system and method simultaneously obtains a first electric field using a Kirchhoff method without considering a pitch formed on a mask and obtains a second electric field using an electromagnetic field analysis method considering the pitch, and then determines a third electric field on a pupil surface of a projection lens by combining the first electric field and the second electric field of forming an image, so as to calculate the image of an optical lithography system which includes an illumination system and a projection optical system and to which the projection lens belongs.Type: GrantFiled: January 7, 2008Date of Patent: October 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Soo-han Choi, Yong-jin Chun, Moon-hyun Yoo, Joon-ho Choi, Ji-suk Hong
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Publication number: 20100052881Abstract: The present invention relates to a button starting system for a vehicle which is able to stably start up by using an LF antenna installed in the vehicle in an emergency of a smart key. According to the system, the necessity of installation of a key holder can be removed.Type: ApplicationFiled: June 10, 2009Publication date: March 4, 2010Applicants: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATIONInventors: Jeong Ki Lee, Eun Beom Choi, Joon Ho Choi, Sin Gu Kim
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Patent number: 7506284Abstract: A method for simulating an integrated circuit includes performing a power supply voltage tuning operation to find a power supply voltage at which a simulation of the integrated circuit at an operating frequency passes a functional requirement, identifying a weak signal node based on the simulation result, and performing a size tuning operation on the weak signal node of the integrated circuit.Type: GrantFiled: January 19, 2006Date of Patent: March 17, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Seuk-Whan Lee, Moon-Hyun Yoo, Joon-Ho Choi
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Publication number: 20080175432Abstract: Provided are a system for analyzing a mask topography, which can reduce calculation time and increase calculation accuracy in consideration of a mask topography effect, and a method of forming an image using the system. The system and method simultaneously obtains a first electric field using a Kirchhoff method without considering a pitch formed on a mask and obtains a second electric field using an electromagnetic field analysis method considering the pitch, and then determines a third electric field on a pupil surface of a projection lens by combining the first electric field and the second electric field of forming an image, so as to calculate the image of an optical lithography system which includes an illumination system and a projection optical system and to which the projection lens belongs.Type: ApplicationFiled: January 7, 2008Publication date: July 24, 2008Applicant: Samsung Electronics Co., Ltd.Inventors: Soo-han Choi, Yong-jin Chun, Moon-hyun Yoo, Joon-ho Choi, Ji-suk Hong
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Patent number: 7100125Abstract: Functional and temporal aggressor classification methods that provide increased efficiency and accuracy for classifying aggressor signal lines of an integrated circuit for purposes of analyzing crosstalk of the circuit.Type: GrantFiled: June 8, 2003Date of Patent: August 29, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Jae-Seok Yang, Jeong-Taek Kong, Moon-Hyun Yoo, Jeong-Yeol Kim, Joon-Ho Choi
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Publication number: 20060190862Abstract: A method for simulating an integrated circuit includes performing a power supply voltage tuning operation to find a power supply voltage at which a simulation of the integrated circuit at an operating frequency passes a functional requirement, identifying a weak signal node based on the simulation result, and performing a size tuning operation on the weak signal node of the integrated circuit.Type: ApplicationFiled: January 19, 2006Publication date: August 24, 2006Inventors: Seuk-Whan Lee, Moon-Hyun Yoo, Joon-Ho Choi
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Publication number: 20030229869Abstract: Functional and temporal aggressor classification methods that provide increased efficiency and accuracy for classifying aggressor signal lines of an integrated circuit for purposes of analyzing crosstalk of the circuit.Type: ApplicationFiled: June 8, 2003Publication date: December 11, 2003Applicant: Samsung Electronics Co., Ltd.Inventors: Jae-Seok Yang, Jeong-Taek Kong, Moon-Hyun Yoo, Jeong-Yeol Kim, Joon-Ho Choi
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Patent number: 5064759Abstract: A new polysaccharide polymer and a process for producing the same are disclosed. The polysaccharide polymer as a biopolymer can be produced by culturing a heteropolysaccharide-producing strain of Methylobacterium organophilum on a aqueous culture medium containing methanol as a source of carbon and energy.Type: GrantFiled: March 29, 1990Date of Patent: November 12, 1991Assignee: Korea Advanced Institute of Science and TechnologyInventors: J. M. Lebeault, Jung-Hoe Kim, Joon-Ho Choi