Patents by Inventor Min Gyu Choi

Min Gyu 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).

  • Publication number: 20190192081
    Abstract: The present disclosure relates to a method and a system for standardizing a hemodynamics measurement result and a non-transitory computer-readable recording medium. According to one aspect of the present disclosure, provided is a method for standardizing a measurement result obtained from a device for monitoring hemodynamics, the method comprising the steps of: capturing an image of a subject wearing a monitoring device; defining a photogrammetric coordinate system on the captured image, and converting a preset local coordinate system on the monitoring device into the photogrammetric coordinate system; and converting the photogrammetric coordinate system into a standard coordinate system which is based on a standard space.
    Type: Application
    Filed: July 5, 2017
    Publication date: June 27, 2019
    Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyeon Min BAE, Gun Pil HWANG, Min Gyu CHOI, Jong Kwan CHOI, Jae Myoung KIM, Min Su JI
  • Patent number: 10254165
    Abstract: Disclosed are a time division spread spectrum code-based optical spectroscopy system capable of controlling irradiation power and a method for controlling the optical spectroscopy system. The optical spectroscopy system may comprise: a light transmission unit for irradiating light to a particular region of a subject by means of a light source, wherein the light is irradiated so that the overall energy is consistently maintained by reducing the light irradiation time and increasing the strength of the light; and a light receiving unit for collecting emergent light which has passed through the particular region.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: April 9, 2019
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyeon Min Bae, Jong Kwan Choi, Min Gyu Choi, Jae Myoung Kim, Gun Pil Hwang
  • Patent number: 10164263
    Abstract: The present invention relates to a battery technology, and more particularly, to a current collector that may be widely used in secondary batteries and an electrode employing the same. The current collector includes a conductive fiber layer including a plurality of conductive fibers. Each of the conductive fibers includes a conductive core consisting of a plurality of metal filaments; and a conductive binder matrix surrounding the outer circumferential surfaces of the conductive core.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: December 25, 2018
    Assignee: JENAX INC.
    Inventors: Chang Hyeon Kim, Min Gyu Choi, Lee Hyun Shin
  • Patent number: 10039498
    Abstract: Disclosed are an optical spectroscopy system using a pipeline-structured matched filter and a dual-slope analog digital converter, and a method for controlling the optical spectroscopy system. The optical spectroscopy system may comprise: a pipeline-structured matched filter sequentially connecting input voltage, transmitted by means of an amplifier, to a first capacitor and a second capacitor by means of a first switch terminal; and a dual-slope analog digital converter for sequentially receiving, by means of a second switch terminal, the electric charge stored in the first capacitor and second capacitor, and digitizing the input voltage.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: August 7, 2018
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Hyeon Min Bae, Jong Kwan Choi, Min Gyu Choi, Jae Myoung Kim, Gun Pil Hwang
  • Publication number: 20180095217
    Abstract: A liquid crystal display device in an example includes a light guide plate that includes a light entering surface facing a light source; a reflecting plate below the light guide plate; an optical sheet on the light guide plate; a liquid crystal panel on the optical sheet; and a pattern adhesive layer that attaches at least one of the reflecting plate and the optical sheet to the light guide plate, wherein the pattern adhesive layer includes honeycomb shaped unit patterns that each include two first separation walls facing each other in a first direction perpendicular to the light entering surface, and second separation walls other than the first separation walls and each have an air cell defined therein, and wherein the unit patterns are arranged in the first direction and in a second direction perpendicular to the first direction.
    Type: Application
    Filed: September 25, 2017
    Publication date: April 5, 2018
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Ju-Hun MIN, Young-Hun JEONG, Min-Gyu CHOI
  • Patent number: 9935316
    Abstract: Provided are a non-woven fabric current collector and a method and system of fabricating a battery using the same. The non-woven fabric current collector comprises a upper conductive non-woven fabric sheet and a lower conductive non-woven fabric sheet including a network of a conductive fibers; and a tension reinforcing layer that has a greater tensile strength than the conductive non-woven fabric sheets, arranged between the upper conductive non-woven fabric sheet and the lower conductive non-woven fabric sheet, mediates adhesion between the upper conductive non-woven fabric sheet and the lower conductive non-woven fabric sheet, and has pores via which the upper conductive non-woven fabric sheet and the lower conductive non-woven fabric sheet communicate with each other.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: April 3, 2018
    Assignee: JENAX INC.
    Inventors: Chang Hyeon Kim, Min Gyu Choi, Lee Hyun Shin
  • Publication number: 20170325747
    Abstract: Disclosed are an optical spectroscopy system using a pipeline-structured matched filter and a dual-slope analog digital converter, and a method for controlling the optical spectroscopy system. The optical spectroscopy system may comprise: a pipeline-structured matched filter sequentially connecting input voltage, transmitted by means of an amplifier, to a first capacitor and a second capacitor by means of a first switch terminal; and a dual-slope analog digital converter for sequentially receiving, by means of a second switch terminal, the electric charge stored in the first capacitor and second capacitor, and digitizing the input voltage.
    Type: Application
    Filed: November 14, 2014
    Publication date: November 16, 2017
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hyeon Min BAE, Jong Kwan CHOI, Min Gyu CHOI, Jae Myoung KIM, Gun Pil HWANG
  • Publication number: 20170322083
    Abstract: Disclosed are a time division spread spectrum code-based optical spectroscopy system capable of controlling irradiation power and a method for controlling the optical spectroscopy system. The optical spectroscopy system may comprise: a light transmission unit for irradiating light to a particular region of a subject by means of a light source, wherein the light is irradiated so that the overall energy is consistently maintained by reducing the light irradiation time and increasing the strength of the light; and a light receiving unit for collecting emergent light which has passed through the particular region.
    Type: Application
    Filed: November 14, 2014
    Publication date: November 9, 2017
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hyeon Min BAE, Jong Kwan CHOI, Min Gyu CHOI, Jae Myoung KIM, Gun Pil HWANG
  • Publication number: 20170319072
    Abstract: Disclosed are an apparatus and a method for removing strands of hair from a near-infrared spectroscopy. The apparatus for removing strands of hair from a near-infrared spectroscopy may comprise: an arch-shaped main body worn on the head of a user, having a plurality of protrusions formed at an inner side part of the arch-shaped main body, and configured to expose a portion of scalp by arranging the strands of hair; a probe configured to come into close contact with the scalp; and a sensor configured to be accommodated inside the probe and receive light.
    Type: Application
    Filed: November 14, 2014
    Publication date: November 9, 2017
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hyeon Min BAE, Jae Myoung KIM, Jong Kwan CHOI, Min Gyu CHOI, Gun Pil HWANG
  • Publication number: 20170311857
    Abstract: Disclosed are a mobile and expandable firmware-based optical spectroscopy system and a method for controlling same. The optical spectroscopy system may comprise: a wearing part attached to a particular region of a subject to irradiate light, on the basis of a firmware, to the particular region and measure the bodily signals of the subject by collecting emergent light which has passed through the particular region; and a monitoring unit, connected to the wearing part via a wired or wireless network, for controlling the strength of the light irradiated from the wearing part.
    Type: Application
    Filed: November 14, 2014
    Publication date: November 2, 2017
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hyeon Min BAE, Jae Myoung KIM, Jong Kwan CHOI, Min Gyu CHOI, Gun Pil HWANG
  • Publication number: 20170311898
    Abstract: Disclosed are an optical spectroscopy system using a matched filter-based broadband signal receiver for stable data extraction, and a method for controlling the optical spectroscopy system. The optical spectroscopy system may comprise: a light transmission unit for irradiating light on a particular region of a subject by means of a plurality of light sources, wherein the light irradiated from the plurality of light sources is code-modulated by means of the Walsh codes and then irradiated; and a light receiving unit for detecting emergent light which has passed through the particular region, wherein the light source is identified by demodulating the light by means of the Walsh codes.
    Type: Application
    Filed: November 14, 2014
    Publication date: November 2, 2017
    Applicant: Korea Advanced Institute of Science and Technology
    Inventors: Hyeon Min BAE, Jong Kwan CHOI, Min Gyu CHOI, Jae Myoung KIM, Gun Pil HWANG
  • Patent number: 9680135
    Abstract: A pouch-type flexible film battery, including: (a) a cathode structure including a cathode pouch, a cathode conductive carbon layer, and a cathode layer; (b) an anode structure including an anode pouch, an anode conductive carbon layer, and an anode layer; and (c) a polymer electrolyte layer that is provided between the cathode and anode structures, that is bonded to the cathode layer and to the anode layer, and that is a gel-type electrolyte having adhesive properties and including a cellulose-based polymer.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: June 13, 2017
    Assignee: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Young-Gi Lee, Kwang Man Kim, Min Gyu Choi, Kunyoung Kang
  • Publication number: 20160190599
    Abstract: The present invention relates to a battery technology, and more particularly, to a current collector that may be widely used in secondary batteries and an electrode employing the same. The current collector according to an embodiment of the present invention includes a conductive substrate; and a conductive fiber layer, which is dispersed on the conductive substrate and comprises pores. The conductive fiber layer comprises a plurality of metal filaments and liner binders mixed with the plurality of metal filaments, and the conductive fiber layer is combined with the conductive substrate via the mixed linear binders.
    Type: Application
    Filed: June 24, 2014
    Publication date: June 30, 2016
    Inventors: Chang-Hyeon Kim, Min Gyu Choi, Lee Hyun Shin
  • Publication number: 20160181620
    Abstract: The present invention relates to a battery technology, and more particularly, to a current collector that may be widely used in secondary batteries and an electrode employing the same. The current collector includes a conductive fiber layer including a plurality of conductive fibers. Each of the conductive fibers includes a conductive core consisting of a plurality of metal filaments; and a conductive binder matrix surrounding the outer circumferential surfaces of the conductive core.
    Type: Application
    Filed: June 24, 2014
    Publication date: June 23, 2016
    Inventors: Chang Hyeon Kim, Min Gyu Choi, Lee Hyun Shin
  • Publication number: 20160111729
    Abstract: Provided are a non-woven fabric current collector and a method and system of fabricating a battery using the same. An electrode according to an embodiment of the present invention includes a non-woven fabric current collector including a conductive non-woven fabric sheet including a network of conductive fibers and pores for communication between a main surface and the interior thereof; and conductive patterns partially blocking the pores on the main surface of the conductive non-woven fabric sheet.
    Type: Application
    Filed: June 9, 2014
    Publication date: April 21, 2016
    Applicant: JENAX INC.
    Inventors: Chang Hyeon Kim, Min Gyu Choi, Lee Hyun Shin
  • Publication number: 20160049662
    Abstract: Provided are a non-woven fabric current collector and a method and system of fabricating a battery using the same. The non-woven fabric current collector comprises a upper conductive non-woven fabric sheet and a lower conductive non-woven fabric sheet including a network of a conductive fibers; and a tension reinforcing layer that has a greater tensile strength than the conductive non-woven fabric sheets, arranged between the upper conductive non-woven fabric sheet and the lower conductive non-woven fabric sheet, mediates adhesion between the upper conductive non-woven fabric sheet and the lower conductive non-woven fabric sheet, and has pores via which the upper conductive non-woven fabric sheet and the lower conductive non-woven fabric sheet communicate with each other.
    Type: Application
    Filed: April 30, 2014
    Publication date: February 18, 2016
    Applicant: JENAX INC.
    Inventors: Chang Hyeon Kim, Min Gyu Choi, Lee Hyun Shin
  • Patent number: 9201188
    Abstract: A backlight unit and a liquid crystal display device having the same which may facilitate control of output light through a light guide plate, improve light concentration effect, and reduce moire. The backlight unit includes light sources generating light, a light guide plate guiding light through an incidence surface opposite the light sources, emitting the light through an emission surface, and having lower patterns of a prism shape formed on the lower surface of the light guide plate opposite the emission surface by inclined surfaces and sub-inclined surfaces, and at least one optical sheet stacked on the emission surface.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: December 1, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Hee-Cheoul Kim, Ju-Young Bang, Dong-Seok Lee, Yeong-Eun Son, Min-Gyu Choi
  • Patent number: 9083032
    Abstract: A lithium rechargeable battery includes a cathode plate having a cathode current collector layer; and a cathode layer composed of particles of a cathode active material; an anode plate that is spaced apart from the cathode plate and having an anode current collector layer and an anode layer composed a mixed anode active material that is a mixture including particles of a spinel lithium titanium oxide (Li4Ti5O12) and nanotubes of a lithium titanium oxide (LixTiO2, where 0<x<2); and a polymer electrolyte disposed between the cathode plate and the anode plate. The cathode active material may contain only one cathode active material or be a mixed cathode active material composed of a mixture of particles of carbon-coated lithium iron phosphate (LiFePO4) that are nanoparticles of lithium iron phosphate coated with carbon particles and particles of a lithium transition metal oxide.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: July 14, 2015
    Assignee: INTELLECTUAL DISCOVERY CO., LTD.
    Inventors: Young-Gi Lee, Kwang Man Kim, Min Gyu Choi, Kunyoung Kang, Yil Suk Yang, Jongdae Kim
  • Patent number: 9040917
    Abstract: An efficient method for the extraction of hemodynamic responses in Near-Infrared Spectroscopy (NIRS) systems is proposed to increase the spatial and temporal resolution without hardware overhead. The performance improvement is attributed to high Signal-to-Noise-Ratio (SNR) receivers, a modulation scheme, and a Multi-Input-Multi-Output (MIMO) based data extraction algorithm. The proposed system shows an over 2× increment in the figure of merit (FOM) compared to conventional designs. Experimental results support the validity of the proposed system.
    Type: Grant
    Filed: January 17, 2013
    Date of Patent: May 26, 2015
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Hyeon Min Bae, Jong-Kwan Choi, Min-Gyu Choi
  • Publication number: 20140160397
    Abstract: A backlight unit and a liquid crystal display device having the same which may facilitate control of output light through a light guide plate, improve light concentration effect, and reduce moire. The backlight unit includes light sources generating light, a light guide plate guiding light through an incidence surface opposite the light sources, emitting the light through an emission surface, and having lower patterns of a prism shape formed on the lower surface of the light guide plate opposite the emission surface by inclined surfaces and sub-inclined surfaces, and at least one optical sheet stacked on the emission surface.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 12, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hee-Cheoul Kim, Ju-Young Bang, Dong-Seok Lee, Yeong-Eun Son, Min-Gyu Choi