Patents by Inventor Kiwoong Kim

Kiwoong Kim 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: 20150138740
    Abstract: An integrated silicone for protecting electronic devices includes a base resin, a thermal initiator, and a photoinitiator.
    Type: Application
    Filed: November 10, 2014
    Publication date: May 21, 2015
    Inventors: Kyungjae SHIN, Kiwoong KIM
  • Publication number: 20150044511
    Abstract: A battery pack includes at least one battery cell having a first conductive tab and a second conductive tab, a protection circuit board electrically connected to the first and second conductive tabs, and a temperature sensitive element on the protection circuit board. The temperature sensitive element is adjacent, but electrically insulated from, a connection region where at least one of the first and second conductive tabs is connected to the protection circuit board, the connection region being between the temperature sensitive element and the battery cell.
    Type: Application
    Filed: March 11, 2014
    Publication date: February 12, 2015
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Kiwoong KIM, Jacky CHOI
  • Patent number: 8920974
    Abstract: Disclosed is a cathode material comprising a mixture of an oxide powder (a) defined herein and an oxide powder (b) selected from the group consisting of an oxide powder (b1) defined herein and an oxide powder (b2) defined herein and a combination thereof wherein a mix ratio of the two oxide powders (oxide powder (a):oxide powder (b)) is 50:50 to 90:10. The cathode material uses a combination of an oxide powder (a) and 50% or less of an oxide powder (b) which can exert high capacity, high cycle stability, superior storage stability and high-temperature stability, thus advantageously exhibiting high energy density and realizing high capacity batteries.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: December 30, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Suengeun Choi, Eunyoung Goh, Hyang Mok Lee, Heegyoung Kang, Sangbaek Ryu, Kiwoong Kim
  • Publication number: 20140356563
    Abstract: A surface treatment method of an electronic device is provided. The surface treatment method includes processing a first pattern on a surface of a top mold and a second pattern on a surface of a bottom mold, coating a Ultra-Violet (UV) molding liquid on each of a front surface of a raw sheet material and the bottom mold facing a rear surface of the raw sheet material raw, positioning the raw sheet material between the top mold and the bottom mold, pressing the top mold and the bottom mold to each other, curing the UV molding liquid, and separating the raw sheet material from the top mold and the bottom mold and forming a print layer on the front surface and the rear surface of the raw sheet material.
    Type: Application
    Filed: May 19, 2014
    Publication date: December 4, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyungmo YANG, Kiwoong KIM, Kwangsu SEO, Sungjae LEE, Yongwoo JEON, Wonhee CHOI, Byounguk YOON
  • Publication number: 20140343397
    Abstract: Provided are an ultra-low-field nuclear magnetic resonance device and an ultra-low-field nuclear magnetic resonance measuring method. The method includes applying a first measurement bias magnetic field corresponding to an excitation frequency of a coherent biomagnetic field generated in association with the electrophysiological activity of human body organs, applying a second measurement bias magnetic field having the same direction as the first measurement bias magnetic field and having a different magnitude than the first measurement bias magnetic field, and measuring a magnetic resonance signal generated in the human body by using magnetic field measuring means.
    Type: Application
    Filed: July 30, 2014
    Publication date: November 20, 2014
    Inventors: Kiwoong Kim, Yong-ho Lee, Seong-Joo Lee, Kwon-Kyu Yu
  • Publication number: 20140342191
    Abstract: A battery pack includes a plurality of battery cells; a case accommodating the battery cells; a protective circuit module comprising a circuit board adjacent to the battery cells; a temperature sensitive element on the protective circuit module; and a flexible printed circuit board comprising a conductive pattern layer, wherein the conductive pattern layer is thermally connected to the temperature sensitive element.
    Type: Application
    Filed: August 28, 2013
    Publication date: November 20, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Kyungjae Shin, Kiwoong Kim
  • Publication number: 20140232400
    Abstract: Provided are an object discrimination method and an object discrimination apparatus using an ultra-low magnetic field nuclear magnetic resonance (NMR). The method includes measuring the respective spin-lattice relaxation times at a plurality of strengths of prepolarization magnetic fields with respect to a measurement target and classifying the measurement target using the spin-lattice relaxation times.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicant: Korea Research Institute of Standards and Science
    Inventors: Kiwoong Kim, Chan-Seok Kang, Seong-Joo Lee, Yong-ho Lee, Kwon-Kyu Yu
  • Publication number: 20140235996
    Abstract: A method for mapping of myocardial electric activity includes measuring electrocardiogram data or magnetocardiogram data and mapping the degree of electric activity of a myocardial surface using the electrocardiogram data or the magnetocardiogram data. A signal source of the electrocardiogram data or the magnetocardiogram data is a myocardial surface potential that is scalar quantity. The mapping uses a lead-field vector which represents the sensitivity between the myocardial surface potential and the electrocardiogram or magnetocardiogram data, and a modified lead-field vector which combines a constraint matrix with a constraint condition where no potential sources exist in a specific region.
    Type: Application
    Filed: April 24, 2014
    Publication date: August 21, 2014
    Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE
    Inventors: Kiwoong Kim, Hyukchan Kwon, Yong-Ho Lee, Kwon-Kyu Yu, Jin-Mok Kim
  • Patent number: 8753777
    Abstract: Disclosed is a secondary battery including a cathode, an anode, a membrane and an electrolyte, wherein the cathode contains a mixture of a first cathode material defined herein and a second cathode material selected from the group consisting of a second-(a) cathode material defined herein and a second-(b) cathode material defined herein, and a combination thereof, wherein a mix ratio of the two cathode materials (first cathode material:second cathode material) is 50:50 to 90:10, and the membrane is an organic/inorganic composite porous membrane including (a) a polyolefin-based membrane substrate and (b) an active layer in which one or more areas selected from the group consisting of the surface of the substrate and a portion of pores of the substrate are coated with a mixture of inorganic particles and a binder polymer, wherein the active layer has a structure in which the inorganic particles are interconnected and fixed through a binder polymer and porous structures are formed by the interstitial volume betw
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: June 17, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Seungeun Choi, Eungyoung Goh, Hyang Mok Lee, Heegyoung Kang, Sangbaek Ryu, Kiwoong Kim
  • Patent number: 8715856
    Abstract: Disclosed is a secondary battery including a cathode, an anode, a membrane and an electrolyte, wherein the cathode contains a mixture of a first cathode material defined herein and a second cathode material selected from the group consisting of a second-(a) cathode material defined herein and a second-(b) cathode material defined herein, and a combination thereof, wherein a mix ratio of the two cathode materials (first cathode material: second cathode material) is 50:50 to 90:10, and the membrane is an organic/inorganic composite porous membrane including (a) a polyolefin-based membrane substrate and (b) an active layer in which one or more areas selected from the group consisting of the surface of the substrate and a portion of pores of the substrate are coated with a mixture of inorganic particles and a binder polymer, wherein the active layer has a structure in which the inorganic particles are interconnected and fixed through a binder polymer and porous structures are formed by the interstitial volume bet
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: May 6, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Seungeun Choi, Eunyoung Goh, Hyang Mok Lee, Heegyoung Kang, Sangbaek Ryu, Kiwoong Kim
  • Publication number: 20140120401
    Abstract: A connecting structure between circuit boards and a battery pack having the same. A hot bar does not make a direct contact with a circuit pattern of a flexible printed circuit board while soldering the flexible printed circuit board to a rigid printed circuit board, thereby preventing the damage to the circuit pattern and preventing electric short between a plurality of the circuit patterns due to the solder. During a soldering process, a base insulating layer having glass transition temperature (Tg) higher than a reflow temperature of the solder is arranged between the circuit pattern and the hot bar, the base insulating layer being perforated by a plurality of apertures to allow heat from the hot bar to more efficiently reach the circuit pattern and the solder. In addition, the circuit pattern covers the apertures, so that solder is unable to reach the hot iron.
    Type: Application
    Filed: February 22, 2013
    Publication date: May 1, 2014
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Kyungjae Shin, Kiwoong Kim
  • Publication number: 20140106212
    Abstract: Disclosed is a cathode material comprising a mixture of an oxide powder (a) defined herein and an oxide powder (b) selected from the group consisting of an oxide powder (b1) defined herein and an oxide powder (b2) defined herein and a combination thereof wherein a mix ratio of the two oxide powders (oxide powder (a): oxide powder (b)) is 50:50 to 90:10. The cathode material uses a combination of an oxide powder (a) and 50% or less of an oxide powder (b) which can exert high capacity, high cycle stability, superior storage stability and high-temperature stability, thus advantageously exhibiting high energy density and realizing high capacity batteries.
    Type: Application
    Filed: November 4, 2013
    Publication date: April 17, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Seungeun CHOI, Eunyoung GOH, Hyang Mok LEE, Heegyoung KANG, Sangbaek RYU, Kiwoong KIM
  • Patent number: 8603676
    Abstract: Disclosed is a cathode material comprising a mixture of an oxide powder (a) defined herein and an oxide powder (b) selected from the group consisting of an oxide powder (b1) defined herein and an oxide powder (b2) defined herein and a combination thereof wherein a mix ratio of the two oxide powders (oxide powder (a):oxide powder (b)) is 50:50 to 90:10. The cathode material uses a combination of an oxide powder (a) and 50% or less of an oxide powder (b) which can exert high capacity, high cycle stability, superior storage stability and high-temperature stability, thus advantageously exhibiting high energy density and realizing high capacity batteries.
    Type: Grant
    Filed: September 1, 2011
    Date of Patent: December 10, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Seungeun Choi, Eunyoung Goh, Hyang Mok Lee, Heegyoung Kang, Sangbaek Ryu, Kiwoong Kim
  • Patent number: 8574736
    Abstract: Disclosed herein are a hybrid type electrode assembly including a plurality of electrode groups that can be charged and discharged, wherein the respective electrode groups are constructed in a structure in which a cathode and an anode are opposite to each other while a separator is disposed between the cathode and the anode, and at least one of the electrode groups is a capacitor type electrode group, and a secondary battery including the same. In the hybrid type electrode assembly according to the present invention, a coupled system of a capacitor and a secondary battery is embodied in a single cell through a simplified manufacturing process. Consequently, the present invention has the effect of reducing the manufacturing costs of the battery cell and improving the pulse charge and discharge characteristics without the degeneration of capacity.
    Type: Grant
    Filed: July 27, 2007
    Date of Patent: November 5, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Hyang Mok Lee, Oh Young Hyun, Kiwoong Kim, Sung-Mok Lim
  • Publication number: 20130271145
    Abstract: Provided are an apparatus and a method for canceling magnetic fields. The apparatus includes a magnetic field canceling coil disposed adjacent to an inner wall of a magnetic shield room to surround the entire inner space or a portion of an inner space of the magnetic shield room; and a magnetic field canceling coil driver to supply current to the magnetic field canceling coil. The magnetic field canceling coil cancels a prepolarization magnetic field established on the wall of the magnetic shield room by a prepolarization coil disposed in the center of the magnetic shield room to minimize magnetic interference caused by the magnetic shield room.
    Type: Application
    Filed: June 4, 2013
    Publication date: October 17, 2013
    Inventors: Seong-min HWANG, Kiwoong KIM, Jin Mok KIM, Yong-Ho LEE, Chan Seok KANG, Kwon Kyu YU, Seong-Joo LEE
  • Publication number: 20130143088
    Abstract: Disclosed herein is an electrode assembly of a cathode/separator/anode structure, wherein a plurality of first unit electrodes and a second electrode sheet are wound so that the first unit electrodes are opposite to the second electrode sheet via a separator sheet, and a first electrode and a second electrode have opposite polarities.
    Type: Application
    Filed: March 31, 2011
    Publication date: June 6, 2013
    Applicant: LG CHEM, LTD.
    Inventors: Jihoon Cho, Dongmyung Kim, Kiwoong Kim, Sung-Min Hwang, Hyun-Chul Jung, Sungjin Kwon, Hyeong Kim, Ki Hong Min
  • Patent number: 8350568
    Abstract: A nuclear magnetic resonance apparatus includes a dewar containing a low-temperature liquid refrigerant, a prepolarization coil disposed inside the dewar and including a superconducting wire, a prepolarization coil driving unit for intermittent application of current to the prepolarization coil in a capacitor charge/discharge method to generate a prepolarization magnetic field, a sensor unit for measuring a nuclear magnetic resonance signal from a sample to which a prepolarization magnetic field is applied with the prepolarization coil, and a readout magnetic field generation unit for applying a readout magnetic field to the sample.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: January 8, 2013
    Assignee: Korea Research Institute of Standards and Science
    Inventors: Seong-min Hwang, Kiwoong Kim, Jin-Mok Kim, Yong-Ho Lee, Chan Seok Kang, Kwon Kyu Yu, Seong-Joo Lee
  • Publication number: 20120225343
    Abstract: Disclosed is a cathode material comprising a mixture of an oxide powder (a) defined herein and an oxide powder (b) selected from the group consisting of an oxide powder (b1) defined herein and an oxide powder (b2) defined herein and a combination thereof wherein a mix ratio of the two oxide powders (oxide powder (a): oxide powder (b)) is 50:50 to 90:10. The cathode material uses a combination of an oxide powder (a) and 50% or less of an oxide powder (b) which can exert high capacity, high cycle stability, superior storage stability and high-temperature stability, thus advantageously exhibiting high energy density and realizing high capacity batteries.
    Type: Application
    Filed: September 1, 2011
    Publication date: September 6, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Seungeun CHOI, Eunyoung GOH, Hyang Mok LEE, Heegyoung KANG, Sangbaek RYU, Kiwoong KIM
  • Publication number: 20120219840
    Abstract: Disclosed is a secondary battery including a cathode, an anode, a membrane and an electrolyte, wherein the cathode contains a mixture of a first cathode material defined herein and a second cathode material selected from the group consisting of a second-(a) cathode material defined herein and a second-(b) cathode material defined herein, and a combination thereof, wherein a mix ratio of the two cathode materials (first cathode material: second cathode material) is 50:50 to 90:10, and the membrane is an organic/inorganic composite porous membrane including (a) a polyolefin-based membrane substrate and (b) an active layer in which one or more areas selected from the group consisting of the surface of the substrate and a portion of pores of the substrate are coated with a mixture of inorganic particles and a binder polymer, wherein the active layer has a structure in which the inorganic particles are interconnected and fixed through a binder polymer and porous structures are formed by the interstitial volume bet
    Type: Application
    Filed: September 1, 2011
    Publication date: August 30, 2012
    Applicant: LG CHEM, LTD.
    Inventors: Seungeun CHOI, Eunyoung GOH, Hyang Mok LEE, Heegyoung KANG, Sangbaek RYU, Kiwoong KIM
  • Publication number: 20110068789
    Abstract: A nuclear magnetic resonance apparatus includes a dewar containing a low-temperature liquid refrigerant, a prepolarization coil disposed inside the dewar and including a superconducting wire, a prepolarization coil driving unit for intermittent application of current to the prepolarization coil in a capacitor charge/discharge method to generate a prepolarization magnetic field, a sensor unit for measuring a nuclear magnetic resonance signal from a sample to which a prepolarization magnetic field is applied with the prepolarization coil, and a readout magnetic field generation unit for applying a readout magnetic field to the sample.
    Type: Application
    Filed: October 20, 2009
    Publication date: March 24, 2011
    Inventors: Seong-min Hwang, Kiwoong Kim, Jin-Mok Kim, Yong-Ho Lee, Chan Seok Kang, Kwon Kyu Yu, Seong-Joo Lee