Patents by Inventor Sung Min Choi

Sung Min 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: 20160141593
    Abstract: A battery system improving operation reliability of a swelling current interrupt device (CID) is provided. The battery system includes a cooling plate that forms an appearance of a battery in which the swelling CID interrupting a current flow is mounted and includes a swelling aperture formed therein. The swelling aperture induces an expansion of a pouch in which the swelling CID is embedded. Therefore, since the swelling aperture is formed in the cooling plate, improved operation reliability of the swelling CID than a battery system according to related art in which operation reliability was varied based on a thickness of a pouch cell is obtained.
    Type: Application
    Filed: August 9, 2015
    Publication date: May 19, 2016
    Inventors: Hong Seok Min, Ik Kyu Kim, Sung Min Choi, Seung Ho Ahn
  • Patent number: 9324991
    Abstract: A high voltage battery for vehicles includes an electrode tab that is divided into a first part placed near a battery cell, and a second part placed near a terminal. A first part extension extends from the first part and is fixed to a lower pouch. A second part extension extends from the second part, comes into contact with the first part extension, has elasticity, and is fixed at an upper end thereof to an upper pouch. A hook part extends from the first part extension and holds the second part extension by grasping an edge of the second part extension.
    Type: Grant
    Filed: July 16, 2014
    Date of Patent: April 26, 2016
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Seung Ho Ahn, Sung Min Choi, Hong Seok Min
  • Publication number: 20160056325
    Abstract: A semiconductor light emitting device includes: an n-type semiconductor layer and a p-type semiconductor layer; an active layer disposed between the n-type semiconductor layer and the p-type semiconductor layer; and an electron blocking layer disposed between the active layer and the p-type semiconductor layer and doped with a p-type dopant element. The electron blocking layer is formed of AlxGa1-xN, where 0<x?1. A plurality of first regions blocking overflow of electrons from the active layer to the p-type semiconductor layer and a plurality of second regions formed of InN are alternately disposed within the electron blocking layer.
    Type: Application
    Filed: April 1, 2015
    Publication date: February 25, 2016
    Inventors: Jong Sun MAENG, Jun Youn KIM, Sung Min CHOI, Kyung Ho YOO
  • Publication number: 20160046201
    Abstract: A system for controlling a battery to extend a driving mileage is provided. The system supplies a high voltage required to drive a motor by connecting a plurality of batteries in series by turning off a battery switching unit during engaged of an accelerator and balances voltage between the plurality of batteries. A voltage deviation is managed by connecting the plurality of batteries in parallel by turning on the battery switching unit when the accelerator is disengaged. The system includes a plurality of battery modules and a battery switching unit configured to connect the plurality of battery modules in parallel when an accelerator is disengaged and connect the plurality of battery modules in series when the accelerator is engaged. A motor driving unit is configured to receive an output by the battery switching unit when the accelerator is engaged.
    Type: Application
    Filed: December 12, 2014
    Publication date: February 18, 2016
    Inventors: Hong Seok Min, Seung Ho Ahn, Sung Min Choi, Ik Kyu Kim
  • Publication number: 20150240358
    Abstract: There is provided a susceptor. The susceptor includes: a body having a first surface, a second surface opposite the first surface, and an outer side surface connecting the first surface and the second surface; at least one pocket recessed from the first surface to accommodate at least one wafer therein, respectively; at least one tunnel respectively located below the pocket and extending from a center of the body to the outer side surface; at least one connecting channel each of which connects each of the pocket to each of the tunnel; and a supply line connected to the tunnel at the center of the body and supplying a gas from an outside in order for the gas to flow from the center of the body to the outer side surface.
    Type: Application
    Filed: October 3, 2014
    Publication date: August 27, 2015
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nam Sung KIM, Jong Won JANG, Sung Min CHOI, Sang Heon HAN, Suk Ho YOON, Jeong Wook LEE
  • Publication number: 20150188118
    Abstract: A high voltage battery for vehicles includes an electrode tab that is divided into a first part placed near a battery cell and a second part placed near a terminal. A pouch packages the battery cell therein. A housing is packaged in an interior of the pouch together with the battery cell and has an opening. A first part extension and a second part extension extend from the first part and the second part, respectively, that are inserted into the housing through the opening, and that come into contact with each other in the housing. A cushion is inserted in the housing and compresses the first part extension and the second part extension such that the first part extension and the second part extension come into close contact with each other.
    Type: Application
    Filed: June 4, 2014
    Publication date: July 2, 2015
    Inventors: Sung Min CHOI, Seung Ho AHN, Hong Seok MIN
  • Publication number: 20150188305
    Abstract: A battery overcharge protection device includes a pouch having a battery cell packaged therein. An electrode tab extends from an end of the battery cell for allowing flow of electricity therethrough and is composed of first and second electrode tab parts. A breaker is provided in the pouch and connected to the first and second electrode tab parts to separate the first and second electrode tab parts from each other upon expansion of the battery cell.
    Type: Application
    Filed: August 12, 2014
    Publication date: July 2, 2015
    Inventors: Sung Min CHOI, Seung Ho AHN, Hong Seok MIN
  • Publication number: 20150180013
    Abstract: A high voltage battery for vehicles is provided and includes an electrode tab that is divided into a first part disposed substantially adjacent to a battery cell and a second part disposed substantially adjacent to a terminal. A first part extension extends from the first part and is fixed to a lower pouch and a second part extension extends from the second part and is fixed to an upper pouch. A conductive polymer layer bonds the first part extension and the second part extension to each other and conducts electricity between the first part extension and the second part extension.
    Type: Application
    Filed: June 17, 2014
    Publication date: June 25, 2015
    Inventors: Seung Ho Ahn, Sung Min Choi, Hong Seok Min
  • Publication number: 20150180015
    Abstract: A high voltage battery for vehicles includes an electrode tab that is divided into a first part placed near a battery cell, and a second part placed near a terminal. A first part extension extends from the first part and is fixed to a lower pouch. A second part extension extends from the second part, comes into contact with the first part extension, has elasticity, and is fixed at an upper end thereof to an upper pouch. A hook part extends from the first part extension and holds the second part extension by grasping an edge of the second part extension.
    Type: Application
    Filed: July 16, 2014
    Publication date: June 25, 2015
    Inventors: Seung Ho AHN, Sung Min CHOI, Hong Seok MIN
  • Publication number: 20150180014
    Abstract: A high voltage battery for vehicles includes an anode tab that is divided into a first part placed near a battery cell and a second part placed near a terminal. A first part extension extends from the first part and is fixed to a lower pouch. A second part extension extends from the second part, comes into contact with the first part extension, and is fixed at an upper end thereof to an upper pouch. An cathode extension extends from a cathode tab and is spaced apart from the upper end of the second part extension. A cushion is interposed between the second part extension and the cathode extension, with a reference level of pressure formed in the cushion.
    Type: Application
    Filed: July 2, 2014
    Publication date: June 25, 2015
    Inventors: Hong Seok MIN, Seung Ho AHN, Sung Min CHOI
  • Publication number: 20150180089
    Abstract: A high-voltage battery for a vehicle is provided. The high-voltage battery includes an electrode assembly that includes a cathode plate, an anode plate, and a separator disposed between the cathode plate and the anode plate. A safety member is coupled to an outer surface of the electrode assembly, and includes a first electrically conductive plate electrically connected to the cathode plate, and a second electrically conductive plate that is electrically connected to the anode plate and has an insulation surface on a surface of the safety member.
    Type: Application
    Filed: August 12, 2014
    Publication date: June 25, 2015
    Inventors: Hong Seok Min, Seung Ho Ahn, Sung Min Choi
  • Patent number: 8648355
    Abstract: Disclosed is a semiconductor light emitting device. The semiconductor light emitting device comprises a substrate; a light emitting structure comprising a first conductive semiconductor layer, an active layer and a second conductive semiconductor layer on the substrate; an electrode layer on the second conductive semiconductor layer; and an electrode on the electrode layer, wherein the substrate comprises a plurality of convex portions, wherein the electrode layer comprises a plurality of holes corresponding to a region of at least one of the plurality of convex portions of the substrate, wherein an insulating material is disposed in the plurality of holes on the light emitting structure.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: February 11, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventor: Sung Min Choi
  • Patent number: 8536599
    Abstract: A semiconductor light emitting device has a first conductive semiconductor layer, an active layer on the first conductive semiconductor layer and a second conductive semiconductor layer on the active layer. An oxide layer is disposed around the first semiconductor layer and is provided between the substrate and active layer. The first semiconductor layer has an uneven pattern along the side edge.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: September 17, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventor: Sung Min Choi
  • Publication number: 20130236634
    Abstract: There is provided a chemical vapor deposition apparatus, including: a reaction chamber including a support part having a wafer placed thereon and a gas supply part supplying a process gas to a reactive space formed above the support part to allow a thin film to be grown on a surface of the wafer; a heat exchanger changing a temperature of the process gas, supplied to the reactive space through the gas supply part, to allow the process gas to be maintained at a set temperature: and a controller regulating a flow rate of the process gas, and detecting a temperature difference between a temperature of the process gas and the set temperature to thereby control the heat exchanger to supply the process gas to the reactive space while the process gas is maintained at a reference temperature set according to each stage.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 12, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung Min CHOI, Dong Ju LEE, Heon Ho LEE, Jang Mi KIM, Ok Hyun KIM
  • Publication number: 20130114779
    Abstract: An apparatus for charging an emergency battery, which provides an emergency power to an emergency core cooling apparatus including an electric pump or a steam pump includes a thermoelectric generation device configured to detect a decay heat and a residual heat produced in a nuclear power plant and configured to convert the detected heat to an electric energy; an electric energy conversion unit connected to the thermoelectric generation device to output a current generated in the thermoelectric generation device as a constant voltage; and the emergency battery configured to store a power outputted from the electric energy conversion unit.
    Type: Application
    Filed: September 4, 2012
    Publication date: May 9, 2013
    Applicant: KEPCO NUCLEAR FUEL CO., LTD.
    Inventors: Sang Jong LEE, Seoung Eun CHUN, Geol Woo LEE, Byeong Tae YU, Joon Sung KIM, Tae Young YOON, Sung Min CHOI, Hye Jin KIM, Sang Jung PARK, Hyoung Gun SHIM
  • Publication number: 20130037841
    Abstract: Disclosed is a semiconductor light emitting device. The semiconductor light emitting device comprises a substrate; a light emitting structure comprising a first conductive semiconductor layer, an active layer and a second conductive semiconductor layer on the substrate; an electrode layer on the second conductive semiconductor layer; and an electrode on the electrode layer, wherein the substrate comprises a plurality of convex portions, wherein the electrode layer comprises a plurality of holes corresponding to a region of at least one of the plurality of convex portions of the substrate, wherein an insulating material is disposed in the plurality of holes on the light emitting structure.
    Type: Application
    Filed: August 9, 2012
    Publication date: February 14, 2013
    Inventor: Sung Min CHOI
  • Patent number: 8263985
    Abstract: Disclosed is a semiconductor light emitting device. The semiconductor light emitting device comprises a first conductive semiconductor layer, an active layer on the first conductive semiconductor layer, and a second conductive semiconductor layer comprising a plurality of recesses on the active layer.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: September 11, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventor: Sung Min Choi
  • Patent number: 7794622
    Abstract: Disclosed is a method for preparation of a liquid crystal film having uniaxial alignment, comprising steps of: elevating temperature of a substrate coated with a nanostructure formed of liquid crystal molecules to a value sufficient to alter the nanostructure into a liquid phase; and decreasing the temperature to another value sufficient to again alter the liquid phase into a liquid crystal phase in the presence of a magnetic field to horizontally align the nanostructure of liquid crystal molecules.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: September 14, 2010
    Assignee: Korea Advanced Institute of Science and Technology
    Inventors: Sung-Min Choi, Hyo-Sik Kim
  • Publication number: 20090267098
    Abstract: Disclosed is a semiconductor light emitting device. The semiconductor light emitting device comprises a first conductive semiconductor layer, an active layer on the first conductive semiconductor layer, and a second conductive semiconductor layer comprising a plurality of recesses on the active layer.
    Type: Application
    Filed: April 23, 2009
    Publication date: October 29, 2009
    Inventor: Sung Min CHOI
  • Patent number: D706191
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: June 3, 2014
    Assignee: GM Global Technology Operations, LLC
    Inventors: Sung-min Choi, Sang-hoon Lee