Patents by Inventor Woo Sup Kim

Woo Sup 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).

  • Patent number: 10600572
    Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: March 24, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo Kim, Jong Ho Lee, Min Gi Sin, Hak Kwan Kim, Chin Mo Kim, Chi Hwa Lee, Hong Seok Kim, Woo Sup Kim, Chang Hwa Park
  • Patent number: 10580575
    Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: March 3, 2020
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo Kim, Jong Ho Lee, Min Gi Sin, Hak Kwan Kim, Chin Mo Kim, Chi Hwa Lee, Hong Seok Kim, Woo Sup Kim, Chang Hwa Park
  • Patent number: 10418178
    Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: September 17, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Woo Kim, Jong Ho Lee, Min Gi Sin, Hak Kwan Kim, Chin Mo Kim, Chi Hwa Lee, Hong Seok Kim, Woo Sup Kim, Chang Hwa Park
  • Publication number: 20190172641
    Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.
    Type: Application
    Filed: February 5, 2019
    Publication date: June 6, 2019
    Inventors: Jin Woo KIM, Jong Ho LEE, Min Gi SIN, Hak Kwan KIM, Chin Mo KIM, Chi Hwa LEE, Hong Seok KIM, Woo Sup KIM, Chang Hwa PARK
  • Patent number: 10269492
    Abstract: A multilayer ceramic electronic component and a method of manufacturing the same are provided. The multilayer ceramic electronic component includes: a ceramic body including dielectric layers; and internal electrodes disposed on the dielectric layers within the ceramic body and containing a ceramic material trapped therein. The ceramic material is a dielectric material doped with an additive.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: April 23, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Kum Jin Park, Chang Hak Choi, Chi Hwa Lee, Min Gi Sin, Woo Sup Kim, Jong Hoon Yoo
  • Publication number: 20180130601
    Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on an external surface of the ceramic body, wherein the dielectric layer contains a barium titanate-based powder particle having a core-shell structure including a core and a shell around the core, the shell having a structure in which titanium is partially substituted with an element having the same oxidation number as that of the titanium in the barium titanate-based powder particle and having an ionic radius different from that of the titanium in the barium titanate-based powder particle, and the shell covers at least 30% of a surface of the core.
    Type: Application
    Filed: August 23, 2017
    Publication date: May 10, 2018
    Inventors: Jin Woo KIM, Jong Ho LEE, Min Gi SIN, Hak Kwan KIM, Chin Mo KIM, Chi Hwa LEE, Hong Seok KIM, Woo Sup KIM, Chang Hwa PARK
  • Patent number: 9595822
    Abstract: A reverse battery protection device and an operating method thereof are provided. The reverse battery protection device includes a signal generating unit measuring a voltage of a battery, and, when the measured voltage is not smaller than a reference voltage, generating an electrical signal, a signal converting unit converting the generated electrical signal into a DC voltage, and a switch unit switching to allow a current to flow between the battery and a converter, when the converted DC voltage is received.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: March 14, 2017
    Assignee: LSIS CO., LTD.
    Inventors: Sung Sik Park, Woo Sup Kim
  • Patent number: 9499060
    Abstract: A power conversion device for charging first and second batteries is provided. The power conversion device includes an input unit, a first power conversion unit, a second power conversion unit, a third power conversion unit, and a switching unit connecting the first power conversion unit to the second power conversion unit in the first operation mode according to a control signal supplied from the outside, the switching unit connecting the second power conversion unit to the third power conversion unit in the second operation mode according to the control signal supplied from the outside.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: November 22, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Woo Sup Kim, Jae Ho Lee, Hong Tae Park, Young Min Kim
  • Patent number: 9473012
    Abstract: A low voltage DC/DC converter (LDC) control apparatus for controlling an LDC including a transformer and a PWM controller is provided. The low voltage DC/DC converter (LDC) control apparatus includes an input current calculating unit calculating an input current of the LDC by using magnetization inductance information on the transformer and effective duty information on the PWM controller; an output current calculating unit calculating the instantaneous value and average value of an output current based on the input current calculated by the input current calculating unit; and an LDC control unit generating a control signal for over current protection (OCP) or power limit based on the instantaneous value and average value of the output current calculated by the output current calculating unit, wherein the LDC control unit outputs the generated control signal to the PWM controller.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: October 18, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Chul Woo Park, Woo Sup Kim
  • Patent number: 9472335
    Abstract: A transformer module for an electric vehicle is provided. The transformer module includes a bobbin round which a primary-side coil is wound, a printed circuit board, and a secondary-side bus bar disposed between the bobbin and the printed circuit board, wherein a pattern part formed of an electrically conductive material to contact the bus bar is provided on the printed circuit board to electrically connect the pattern part to the bus bar in parallel.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: October 18, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Jong In Sun, Woo Sup Kim, Bo Hyun Youn, Chun Suk Yang
  • Patent number: 9413265
    Abstract: A driving device of a synchronous rectification apparatus is provided. The driving device includes a voltage detection part disposed on a power input terminal to detect a voltage value of a power inputted through the power input terminal, an adjustment part receiving the voltage value detected through the voltage detection part, the adjustment part adjusting the receive voltage value to output the adjusted voltage value, and a comparison part receiving the voltage value adjusted through the adjustment part into a positive terminal and a synchronous rectification starting value into a negative terminal, the comparison part outputting an command value of the synchronous rectification apparatus, which is obtained by comparing the received voltage value with the synchronous rectification starting value.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: August 9, 2016
    Assignee: LSIS CO., LTD.
    Inventors: Woo Sup Kim, Chul Woo Park, Jae Ho Lee, Hong Tae Park
  • Publication number: 20160181019
    Abstract: A multilayer ceramic electronic component and a method of manufacturing the same are provided. The multilayer ceramic electronic component includes: a ceramic body including dielectric layers; and internal electrodes disposed on the dielectric layers within the ceramic body and containing a ceramic material trapped therein. The ceramic material is a dielectric material doped with an additive.
    Type: Application
    Filed: July 14, 2015
    Publication date: June 23, 2016
    Inventors: Kum Jin PARK, Chang Hak CHOI, Chi Hwa LEE, Min Gi SIN, Woo Sup KIM, Jong Hoon YOO
  • Publication number: 20160149119
    Abstract: A piezoelectric ceramic composition comprises a basic composition of (1-x)Pb(Mg1/2W1/2)0.03(Ni1/3Nb2/3)0.09(ZryTi1-y)0.88O3+xBiFeO3, wherein x=0 or 0.015 y=0.47-0.53, and at least one sintering aid of LiCO3, CaCO3, PbO, CuO and Fe2O3, a piezoelectric element comprising the composition, and a method for preparing the same. The piezoelectric ceramic composition allows low temperature sintering and the piezoelectric ceramics prepared therefrom improves structural property, piezoelectric property and dielectric property.
    Type: Application
    Filed: November 18, 2015
    Publication date: May 26, 2016
    Inventors: Hong-Yeon CHO, Yong-Koo KIM, Woo-Sup KIM, Boum-Seock KIM
  • Publication number: 20160104578
    Abstract: The present invention relates to a multi-layer ceramic capacitor which includes a ceramic main body formed by stacking internal electrodes and dielectric layers alternately and an external electrode formed by stacking a coating layer and a plating layer on both ends of the ceramic main body sequentially, wherein the coating layer includes conductive metal powder and a(Si, B)-b(Li, K)-c(Ba, Ca)-d(Mn, V, Zn)-e(Ti, Sn, Zr, Al) component of glass frit (herein, 20?a?60, 10?b?35, 2?c?30, 2?d?20 and 0.5?e?30 mol %, a+b+c+d=100 mol %).
    Type: Application
    Filed: October 8, 2015
    Publication date: April 14, 2016
    Inventors: Bum Suk KANG, Su Jin LEE, Hew Young KIM, Hee Sang KANG, Woo Sup KIM, Seong Min CHIN
  • Patent number: 9214825
    Abstract: Provided is an apparatus for charging battery in electric vehicle that includes a DC-DC converter unit formed in two channels for converting a charge of the low voltage battery to a power source by receiving a power source from the high voltage battery.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: December 15, 2015
    Assignee: LSIS Co., Ltd.
    Inventors: Jong In Sun, Woo Sup Kim, Chun Suk Yang
  • Patent number: 9155197
    Abstract: A laminated chip electronic component includes: a ceramic body including internal electrodes and dielectric layers; external electrodes formed to cover both end portions of the ceramic body in a length direction; an active layer in which the internal electrodes are disposed in an opposing manner, while having the dielectric layers interposed therebetween, to form capacitance; and upper and lower cover layers formed on upper and lower portions of the active layer in a thickness direction, the lower cover layer having a thickness greater than that of the upper cover layer.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: October 6, 2015
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sun Cheol Lee, Woo Sup Kim, Dong Gun Kim, Kyeong Jun Kim, Kyu Ho Lee
  • Patent number: 9118254
    Abstract: Disclosed is a DC-DC converter. The DC-DC converter includes a power input unit to which power is applied, a first module comprising a first transformer and a second transformer to output a first output power transformed according to operations of a first switch and a second switch connected with the first transformer and the second transformer by using the applied power, a second module comprising a third transformer and a fourth transformer to output a second output power transformed according to operations of a third switch and a fourth switch connected with the third transformer and the fourth transformer by using the applied power, an output unit to output a sum of the first output power and the second output power, and a controller to control an interleaving operations between the first module and the second module.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: August 25, 2015
    Assignees: LSIS Co., Ltd., SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION
    Inventors: Woo Sup Kim, Jae Ho Lee, Chun Suk Yang, Seoung Woon Lee, Bo Hyung Cho
  • Publication number: 20150214722
    Abstract: A reverse battery protection device and an operating method thereof are provided. The reverse battery protection device includes a signal generating unit measuring a voltage of a battery, and, when the measured voltage is not smaller than a reference voltage, generating an electrical signal, a signal converting unit converting the generated electrical signal into a DC voltage, and a switch unit switching to allow a current to flow between the battery and a converter, when the converted DC voltage is received.
    Type: Application
    Filed: November 5, 2014
    Publication date: July 30, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Sung Sik PARK, Woo Sup KIM
  • Publication number: 20150180364
    Abstract: A driving device of a synchronous rectification apparatus is provided. The driving device includes a voltage detection part disposed on a power input terminal to detect a voltage value of a power inputted through the power input terminal, an adjustment part receiving the voltage value detected through the voltage detection part, the adjustment part adjusting the receive voltage value to output the adjusted voltage value, and a comparison part receiving the voltage value adjusted through the adjustment part into a positive terminal and a synchronous rectification starting value into a negative terminal, the comparison part outputting an command value of the synchronous rectification apparatus, which is obtained by comparing the received voltage value with the synchronous rectification starting value.
    Type: Application
    Filed: August 13, 2014
    Publication date: June 25, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Woo Sup KIM, Chul Woo PARK, Jae Ho LEE, Hong Tae PARK
  • Publication number: 20150175021
    Abstract: A power conversion device for charging first and second batteries is provided. The power conversion device includes an input unit, a first power conversion unit, a second power conversion unit, a third power conversion unit, and a switching unit connecting the first power conversion unit to the second power conversion unit in the first operation mode according to a control signal supplied from the outside, the switching unit connecting the second power conversion unit to the third power conversion unit in the second operation mode according to the control signal supplied from the outside.
    Type: Application
    Filed: August 7, 2014
    Publication date: June 25, 2015
    Applicant: LSIS CO., LTD.
    Inventors: Woo Sup KIM, Jae Ho LEE, Hong Tae PARK, Young Min KIM