Patents by Inventor Jae-young Choi

Jae-young 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).

  • Graphene laminate with band gap
    Patent number: 9406513
    Abstract: A graphene laminate includes a first piezoelectric material layer having a negatively-charged surface and a positively-charged surface, a first graphene layer under the first piezoelectric material layer, the first graphene layer contacting the positively-charged surface of the first piezoelectric material layer, a second graphene layer underlying the first graphene layer, and a second piezoelectric material layer under the second graphene layer, the second piezoelectric material layer having a negatively-charged surface and a positively-charged surface, the negatively-charged surface contacting the second graphene layer.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: August 2, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Si-Young Lee, Young-hee Lee, Jae-young Choi
  • METHOD OF NEUTRALIZING AMINE GAS ODOR IN COLD BOX PROCESS, AND AMINE GAS GENERATOR USING THE SAME
    Publication number: 20160214168
    Abstract: A method of neutralizing an amine gas odor in a cold box process, and an amine gas generator using the method are disclosed. The method includes: making molding sand by mixing sand and forming resin; putting the molding sand into a mold; hardening the molding sand by injecting an amine gas into the molding sand in the mold; and removing an amine gas odor remaining in the mold by injecting an amine gas odor neutralizer into the mold. Accordingly, it is possible to inject an amine gas odor neutralizer in casting of a core or a mold in order to reduce the amine gas odor that remains and leaks through a gap of a mold in the casting. Further, an odor neutralizer is immediately injected simultaneously with discharging of an amine gas, so it is possible to simply remove an odor.
    Type: Application
    Filed: April 29, 2015
    Publication date: July 28, 2016
    Inventor: Jae-young Choi
  • Pipe crawler apparatus and method for internal pipe inspection
    Patent number: 9398198
    Abstract: Steam turbine engine cross over pipe or other pipe internal inspection is performed with a selectively steerable pipe inspection crawler apparatus with a chassis having a longitudinal axis, with front and rear Mechanum wheels capable of independently-selected forward or rearward driven rotational direction, for selectively steering the apparatus within the pipe interior under control of a human-machine interface (HMI). The crawler apparatus has at least one inspection camera having a field of view, for capturing images of a pipe interior that is also under control of the HMI. Embodiments of the crawler apparatus include a selectively orientable inspection camera and/or a deployable bore scope that is selectively deployed and retracted from a descending section of the cross over pipe.
    Type: Grant
    Filed: February 21, 2014
    Date of Patent: July 19, 2016
    Assignee: Siemens Energy, Inc.
    Inventors: Jae Young Choi, Christopher Lee Harms, James A. Bauer, Scott A. Karstetter, Michael R. Vindler
  • Electrode, lithium battery, method of manufacturing electrode, and composition for coating electrode
    Patent number: 9397330
    Abstract: An electrode including a current collector, and an active material layer disposed on the current collector. The active material layer includes a structural network and an active material composition. The structural network includes a network of carbon nanotubes and a binder. The active material composition includes an active material and a polar medium.
    Type: Grant
    Filed: August 1, 2008
    Date of Patent: July 19, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Moon-seok Kwon, Seon-mi Yoon, Jae-man Choi, Han-su Kim, Hyeon-jin Shin, Jae-young Choi
  • Probe for diagnosing otitis media using terahertz waves and otitis media diagnosis system and method
    Patent number: 9392934
    Abstract: The present invention relates to a otitis media diagnosis system using terahertz electromagnetic waves, which can diagnose otitis media using terahertz electromagnetic waves in a non-invasive manner, and which can accurately diagnose otitis media by acquiring images on the tympanic cavity using terahertz electromagnetic waves with excellent transmittance, and which can quickly and accurately divide exudative otitis media and suppurative otitis media using terahertz electromagnetic waves that are sensitive to moisture, and which is safe to a body using terahertz electromagnetic waves. The otitis media diagnosis system includes a terahertz probe including a generating unit for radiating terahertz electromagnetic waves from the outside of an ear toward a tympanic cavity and a detection unit for detecting the reflected terahertz electromagnetic waves reflected from the tympanic cavity.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: July 19, 2016
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Yong-Min Huh, Jin-Suck Suh, Seung-Jae Oh, Joo-Hiuk Son, Tae-In Jeon, Jae Young Choi, Hyun Yong Choi, Sang-Hoon Kim, Ki Young Jeong, Young Bin Ji
  • Negative electrode for lithium battery, lithium battery including the same, and methods of manufacture thereof
    Patent number: 9391329
    Abstract: A negative electrode including: a metal layer including lithium; and a platy carbonaceous material layer including a carbonaceous material having a plate structure and disposed on the metal layer.
    Type: Grant
    Filed: May 14, 2013
    Date of Patent: July 12, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seon-mi Yoon, Jae-young Choi, Han-su Kim, Ho-bum Park, Moon-seok Kwon
  • TRANSPARENT ELECTRODES AND ELECTRONIC DEVICES INCLUDING THE SAME
    Publication number: 20160192483
    Abstract: A transparent electrode includes: a substrate; an electrically conductive layer disposed on the substrate and including a plurality of nano-sized conductors; and an organic/inorganic composite layer directly disposed on the electrically conductive layer and including a cross-linked polymer and nano-sized inorganic oxide particles, wherein the nano-sized inorganic oxide particles are included in an amount of greater than or equal to about 1 part by weight and less than about 35 parts by weight, relative to 100 parts by weight of the cross-linked polymer. Also an electronic device including the same.
    Type: Application
    Filed: October 21, 2015
    Publication date: June 30, 2016
    Inventors: Weonho SHIN, Yun Sung WOO, Daejin YANG, Jinyoung HWANG, Chan KWAK, Hyeon Cheol PARK, Jae-Young CHOI
  • TRANSPARENT ELECTRODES AND ELECTRONIC DEVICES INCLUDING THE SAME
    Publication number: 20160180983
    Abstract: A transparent electrode including: a substrate; an undercoat disposed on the substrate; a conductive film disposed on the undercoat and including a plurality of conductive metal nanowires and a carboxyl group-containing cellulose; and an overcoat disposed on the conductive film. Also an electronic device including the transparent electrode.
    Type: Application
    Filed: October 20, 2015
    Publication date: June 23, 2016
    Inventors: Jinyoung HWANG, Kwanghee KIM, Chan KWAK, Hyeon Cheol PARK, Weonho SHIN, Yun Sung WOO, Jae-Young CHOI, Sungjin KIM, Hyosug LEE
  • SINGLE CRYSTALLINE GRAPHENE SHEET AND PROCESS OF PREPARING THE SAME
    Publication number: 20160160379
    Abstract: A single-crystal graphene sheet includes a polycyclic aromatic molecule wherein a plurality of carbon atoms are covalently bound to each other, the single-crystal graphene sheet comprising between about 1 layer to about 300 layers; and wherein a peak ratio of a Raman D band intensity to a Raman G band intensity is equal to or less than 0.2. Also described is a method for preparing a single-crystal graphene sheet, the method includes forming a catalyst layer, which includes a single-crystal graphitizing metal catalyst sheet; disposing a carbonaceous material on the catalyst layer; and heat-treating the catalyst layer and the carbonaceous material in at least one of an inert atmosphere and a reducing atmosphere. Also described is a transparent electrode including a single-crystal graphene sheet.
    Type: Application
    Filed: February 12, 2016
    Publication date: June 9, 2016
    Inventors: Jae-young CHOI, Hyeon-Jin SHIN, Seon-mi YOON, Jai-yong HAN
  • ELECTRICALLY CONDUCTIVE THIN FILMS
    Publication number: 20160163410
    Abstract: An electrically conductive thin film including a plurality of nanosheets including a doped titanium oxide represented by Chemical Formula 1 and having a layered crystal structure: (A?Ti1??)O2+???Chemical Formula 1 wherein, in Chemical Formula 1, ? is greater than 0, A is at least one dopant metal selected from Nb, Ta, V, W, Cr, and Mo, and ? is greater than 0 and less than 1. Also, an electronic device including the electrically conductive thin film.
    Type: Application
    Filed: September 30, 2015
    Publication date: June 9, 2016
    Inventors: Doh Won JUNG, Hee Jung PARK, Yoon Chul SON, Yun Sung WOO, Jongmin LEE, Yong Hee CHO, Kyoung-Seok MOON, Jae-Young CHOI, Kimoon LEE
  • POWERTRAIN FOR HYBRID VEHICLE
    Publication number: 20160144705
    Abstract: A powertrain apparatus may include a planetary gear set including a first rotary member connected to a first motor and selectively operating as an input element or a fixing element, a second rotary member supplied with power from an engine and selectively operating as an input element, and a third rotary member connected to an output shaft and selectively operating as an output element, a second motor supplying power to a motor input shaft, and a transmission including a plurality of pairs of engaged gears forming different transmission gear ratios, the pairs of engaged gears being provided on the motor input shaft and the output shaft, respectively, with an engaging unit provided on the motor input shaft at a location between the pairs of engaged gears and selecting one of the pairs of engaged gears corresponding to a driving speed.
    Type: Application
    Filed: April 22, 2015
    Publication date: May 26, 2016
    Applicant: Hyundai Motor Company
    Inventors: Jong Yun PARK, Jae Young Choi, Kyung Ha Kim, Ki Nam Kim
  • ELECTRICALLY CONDUCTIVE THIN FILMS
    Publication number: 20160141067
    Abstract: An electrically conductive thin film including: a material including a compound represented by Chemical Formula 1 and having a layered crystal structure, MemAa ??Chemical Formula 1 wherein Me is Al, Ga, In, Si, Ge, Sn, A is S, Se, Te, or a combination thereof, and m and a each are independently a number selected so that the compound of Chemical Formula 1 is neutral; and a dopant disposed in the compound of Chemical Formula 1, wherein the dopant is a metal dopant that is different from Me and has an oxidation state which is greater than an oxidation state of Me, a non-metal dopant having a greater number of valence electrons than a number of valence electrons of A in Chemical Formula 1, or a combination thereof, and wherein the compound of Chemical Formula 1 includes a chemical bond which includes a valence electron of an s orbital of Me.
    Type: Application
    Filed: November 13, 2015
    Publication date: May 19, 2016
    Inventors: Kimoon LEE, Sang Il KIM, Se Yun KIM, Sung Woo HWANG, Woojin LEE, Hee Jung PARK, Yoon Chul SON, Hyosug LEE, Doh Won JUNG, Youngjin CHO, Jae-Young CHOI
  • Power transmission system of hybrid electric vehicle
    Patent number: 9340100
    Abstract: A power transmission system of a hybrid electric vehicle may include, a generating device adapted to generate electricity by torque of an engine or to start the engine. an input device adapted to receive the torque of the engine. a speed output device changing the torque transmitted from the input device into two speed steps and outputting the changed torque. an auxiliary power source disposed between the input device and the speed output device and adapted to supply torque to the speed output device or to generate electricity by the torque of the speed output device. a final reduction device outputting the torque transmitted from the speed output device.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: May 17, 2016
    Assignee: Hyundai Motor Company
    Inventors: Jongyun Park, Sungik Bae, Jae Young Choi, Taewon Kim, Wan Soo Kim, Yeonho Kim, Kyungha Kim, Jin-sook Lee, Min Sung Kim, Won-Il Lee, Shin Jong Kim, Ki Nam Kim, Eui-Cheol Chung, Bung Chul Rim
  • Graphene base and method of preparing the same
    Patent number: 9315387
    Abstract: A graphene base, including: graphene; and a substrate, wherein the graphene is formed directly on at least one surface of the substrate, and at least about 90 percent of an area of the surface of the substrate does not have a graphene wrinkle.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeon-jin Shin, Won-mook Choi, Jae-young Choi, Seon-mi Yoon
  • Automated cutting of a cylindrical workpiece
    Patent number: 9314883
    Abstract: Disclosed is an automated cutting of a cylindrical workpiece. According to a method a cutting device is positioned, a motor is activated to rotate about an axis to cut the cylindrical element, and cutting the cylindrical element. Further disclosed is an apparatus and system to automate the cutting of a cylindrical workpiece.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: April 19, 2016
    Assignee: SIEMENS ENERGY, INC.
    Inventor: Jae Young Choi
  • Material including graphene and an inorganic material and method of manufacturing the material
    Patent number: 9306099
    Abstract: A material including: graphene; and an inorganic material having a crystal system, wherein a crystal plane of the inorganic material is oriented parallel to the (0001) plane of the graphene. The crystal plane of the inorganic material has an atomic arrangement of a hexagon, a tetragon, or a pentagon.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: April 5, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., KUMOH NATIONAL INSTITUTE OF TECHNOLOGY INDUSTRY-ACADEMIC COOPERATION FOUNDATION
    Inventors: Jae-young Choi, Won-mook Choi, Duk-hyun Choi, Sang-woo Kim, Kyung-sik Shin
  • POWER TRAIN FOR HYBRID VEHICLE
    Publication number: 20160091070
    Abstract: A powertrain for a hybrid vehicle may include a first input shaft connected to a motor generator and coupled to a dog clutch apparatus, and a second input shaft connected to an engine and coupled to a planetary gear set, in which when the vehicle is overdriven, the dog clutch apparatus is engaged and restricts one component of the planetary gear set.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 31, 2016
    Applicant: Hyundai Motor Company
    Inventors: Jong Yun PARK, Ki Nam Kim, Shin Jong Kim, Won II Lee, Tae Won Kim, Jin Sook Lee, Jang Mi Lee, Jae Young Choi, Sung Ik Bae, Eui Cheol Chung, Kyung Ha Kim, Min Sung Kim
  • Master cylinder for brake system
    Patent number: 9283940
    Abstract: Disclosed is a master cylinder for brake systems including a cylinder body including a first cylinder having a first bore therein and a second cylinder having a second bore therein, the first and second cylinders being joined together by fastening members to allow the first and second bores to communicate with each other, a first and second piston installed to move forward and backward in the first and second bores, a first hydraulic pressure chamber adapted to be pressed by the first piston arranged in the first bore, and a second hydraulic pressure chamber adapted to be pressed by the second piston arranged in the second bore. Each of the first and second bores comprises a large diameter portion expanded to an inside of the cylinder body to increase a flow rate at an initial stage of braking and a small diameter portion narrowed from the large diameter portion.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: March 15, 2016
    Assignee: MANDO CORPORATION
    Inventor: Jae Young Choi
  • Neural element comprising nanowires and support layer
    Patent number: 9283386
    Abstract: Provided is a neural device including a nanowire and a support layer. Further, provided is a neural device including: a substrate, at least one nanowire which is fixed on the substrate at a lengthwise end thereof to extend vertically and inserted into nerves to obtain electrical signals from nerve fibers or apply electrical signals to the nerve fibers; and a support layer which is formed on the substrate and which surrounds and supports at least one portion of the nanowire.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 15, 2016
    Assignee: Industry-Academic Cooperation Foundation, Yonsei University
    Inventors: Seung Han Park, Jong Ill Hong, Jae Young Choi, Heon Jin Choi, Jae Chul Pyun
  • Apparatus and method for estimating malignant tumor
    Patent number: 9282929
    Abstract: An apparatus for estimating a malignant tumor includes: a segmentor configured to segment a first medical image of an object into a first ROI including a mass and a second medical image of the object into a second ROI including a mass; an interest region determiner configured to acquire a first matched ROI and a second matched ROI, which is matched to the first matched ROI based on location information of the first ROI and the second ROI, respectively; a feature extractor configured to extract a similar feature indicating a degree of similarity between the first matched ROI and the second matched ROI, from the first matched ROI and the second matched ROI; and a classifier configured to generate malignant tumor information indicating whether the mass included in the first matched ROI and the second matched ROI is the malignant tumor, based on the extracted similar feature.
    Type: Grant
    Filed: September 19, 2013
    Date of Patent: March 15, 2016
    Assignees: SAMSUNG ELECTRONICS CO., LTD., KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Choong Hwan Choi, Yong-man Ro, Dokwan Oh, Dae-hoe Kim, Jae-young Choi, Woosup Han