Patents by Inventor Dae Bok Oh

Dae Bok Oh 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: 20140318845
    Abstract: There are provided a multilayer ceramic electronic component and a board for mounting the same. The multilayer ceramic electronic component includes a hexahedral ceramic body including dielectric layers and satisfying T/W>1.0 when a width thereof is defined as W and a thickness thereof is defined as T; an active layer in which capacitance is formed, by including a plurality of first and second internal electrodes alternately exposed through both end surfaces of the ceramic body, having the dielectric layer interposed therebetween, an upper cover layer formed above the active layer; a lower cover layer formed below the active layer and having a greater thickness than the upper cover layer; and first and second external electrodes covering the end surfaces of the ceramic body, wherein when a thickness of the lower cover layer is defined as Tb, 0.03?Tb/T?0.25 is satisfied.
    Type: Application
    Filed: August 1, 2013
    Publication date: October 30, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Wi Heon KIM, Dae Bok OH, Jea Hoon LEE, Sang Huk KIM, Jae Yeol CHOI
  • Publication number: 20140318844
    Abstract: There are provided a multilayer ceramic electronic component and a mounting board therefor, the multilayer ceramic electronic component including a ceramic body having a hexahedral shape, including dielectric layers, and satisfying T/W>1.0 when a length of the ceramic body is defined as L, a width of a lower surface of the ceramic body is defined as W, and a thickness of the ceramic body is defined as T, and first and second internal electrodes stacked in the ceramic body so as to face each other, having the respective dielectric layers interposed therebetween, wherein when a width of an upper surface of the ceramic body is defined as Wa, 0.800?Wa/W?0.985 is satisfied.
    Type: Application
    Filed: July 31, 2013
    Publication date: October 30, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Wi Heon KIM, Dae Bok OH, Jae Yeol CHOI, Woo Joon LEE, Sang Huk KIM
  • Publication number: 20140318842
    Abstract: There is provided a multilayer ceramic electronic component includes: a ceramic body including dielectric layers stacked therein and satisfying T(thickness)/W(width)>1.0; first and second internal electrodes disposed to face each other in the ceramic body, having the dielectric layer disposed therebetween, and alternately exposed through end surfaces of the ceramic body; and first and second external electrodes extended from the end surfaces of the ceramic body to upper and lower main surfaces of the ceramic body wherein, when a height of the ceramic body is defined as a, and a distance from an upper end of the first or second external electrode formed on the upper main surface of the ceramic body to a lower end of the first or second external electrode formed on the lower main surface of the ceramic body is defined as b, 0.990?a/b<1 is satisfied.
    Type: Application
    Filed: July 26, 2013
    Publication date: October 30, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byung Woo HAN, Dae Bok OH, Jae Yeol CHOI, Sang Huk KIM
  • Publication number: 20140311783
    Abstract: A multilayer ceramic electronic component includes a ceramic main body including dielectric layers and satisfying T/W>1.0 when W and T are width and thickness, respectively; and first and second internal electrodes stacked in the ceramic main body and facing each other with the dielectric layer interposed therebetween, the ceramic main body including an active layer corresponding to a capacitance forming portion contributing to capacitance formation and a cover layer corresponding to a non-capacitance forming portion provided on at least one of uppermost and lowermost surfaces of the active layer, and when the active layer is divided into three regions in a direction in which the first and second internal electrodes are stacked, an average width of internal electrodes in a central region of the three regions is Wa, and an average width of internal electrodes in upper and lower regions of the three regions is Wb, 0.920?Wb/Wa?0.998 is satisfied.
    Type: Application
    Filed: July 19, 2013
    Publication date: October 23, 2014
    Inventors: Woo Joon LEE, Dae Bok OH, Jae Yeol CHOI, Wi Heon KIM, Sang Huk KIM
  • Publication number: 20140311782
    Abstract: A multilayer ceramic electronic component includes a ceramic body including dielectric layers stacked in a thickness direction and satisfying T/W>1.0 when a width thereof is W and a thickness thereof is T; first and second internal electrodes; and first and second external electrodes, wherein when the ceramic body is divided into five regions in a width direction and a central region among the five regions is CW1 and regions adjacent to the central region CW1 are CW2 and CW3, a difference between electrode connectivity of the central region CW1 and electrode connectivity of the region CW2 or CW3 satisfies 0.02?(CW2 or CW3)?CW1?0.10.
    Type: Application
    Filed: June 21, 2013
    Publication date: October 23, 2014
    Inventors: Min Gon LEE, Dae Bok OH, Jong Han KIM, Seung Ho LEE
  • Publication number: 20140311789
    Abstract: There is provided a multilayer ceramic electronic component including, a ceramic body including a plurality of dielectric layers stacked in a thickness direction, satisfying T/W>1.0 when a width and a thickness thereof are defined as W and T, respectively, and having a groove portion inwardly recessed in a length direction in at least one main surface thereof, a plurality of first and second internal electrodes disposed in the ceramic body to face each other, having the dielectric layers interposed therebetween, and alternately exposed through both end surfaces of the ceramic body, and first and second external electrodes formed to extend from the both end surfaces of the ceramic body to the at least one main surface having the groove portion formed therein.
    Type: Application
    Filed: November 14, 2013
    Publication date: October 23, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byung Woo HAN, Dae Bok OH, Jae Yeol CHOI, Sang Huk KIM
  • Publication number: 20140307362
    Abstract: There are provided a multilayer ceramic electronic component and a mounting board therefor, the multilayer ceramic electronic component, including a ceramic body having a hexahedral shape, including dielectric layers, and satisfying T/W1.0 when a length of the ceramic body is defined as L, a width of the ceramic body is defined as W, and a thickness of the ceramic body is defined as T, and first and second internal electrodes stacked in the ceramic body to face each other, having the respective dielectric layers interposed therebetween.
    Type: Application
    Filed: October 8, 2013
    Publication date: October 16, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Mi Young KIM, Dae Bok Oh, Jae Yeol Choi, Wi Heon Kim, Sang Huk Kim
  • Patent number: 8824119
    Abstract: There are disclosed a multilayer ceramic capacitor and a method of manufacturing the same. The multilayer ceramic capacitor includes: a ceramic body having a first side and a second side opposed to each other and having a third side and a fourth side connecting the first side to the second side, a plurality of inner electrodes formed within the ceramic body, and outer electrodes formed on the third side and the fourth side and electrically connected to the inner electrodes. A distance from distal edges of the inner electrodes to the first side or the second side of the ceramic body is 30 ?m or less.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: September 2, 2014
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hyung Joon Kim, Dae Bok Oh
  • Publication number: 20140022693
    Abstract: There is provided a ceramic electronic component, including: a ceramic body including a plurality of internal electrodes; a first external electrode layer electrically connected to the internal electrodes and formed on external surfaces of the ceramic body; a second external electrode layer including nickel (Ni), formed on the first external electrode layer; a metal coating layer including tin (Sn), formed on external surfaces of the first external electrode layer and the second external electrode layer; and a diffusion layer formed between the first and second external electrode layers and the metal coating layer.
    Type: Application
    Filed: May 3, 2013
    Publication date: January 23, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyu Ree KIM, Hyun Tae KIM, Jong Woo CHOI, Sang Hoon KWON, Dae Bok OH
  • Patent number: 8614876
    Abstract: There is provided a multilayer ceramic capacitor including: a ceramic body including dielectric layers and internal electrodes stacked between the dielectric layers; and a pair of external electrodes each fixed to first and second surfaces of the ceramic body, facing each other, and connected to the internal electrodes, wherein the ceramic body has a third surface facing a printed circuit board and each of the pair of external electrodes includes mounting parts extended onto the third surface and having a preset length by which they are mounted on the printed circuit board and wherein connection parts between the pair of external electrodes and the mounting parts have a convexly curved shape having a size equal to or smaller than a preset corner radius.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: December 24, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hae Suk Chung, Dae Bok Oh, Eun Hye Choi, Eun Hyuk Chae, Kang Heon Hur
  • Patent number: 8451580
    Abstract: There is provided a multilayer ceramic capacitor capable of controlling equivalent series resistance (ESR) characteristics. The multilayer ceramic capacitor includes: a ceramic laminate including dielectric layers and a plurality of internal electrodes having different polarities and alternately stacked between the dielectric layers; and external electrodes formed on both sides of the ceramic laminate, wherein each of the internal electrodes includes a main electrode and a lead for connecting the main electrode to the external electrode, and an equivalent series resistance (ESR) value is determined by adjusting a ratio of a width to a length of the lead, whereby the ESR characteristics of the multilayer ceramic capacitor may be controlled.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: May 28, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Hae Suk Chung, Byoung Hwa Lee, Eun Hyuk Chae, Eun Hye Choi, Kang Heon Hur, Dae Bok Oh
  • Publication number: 20120268860
    Abstract: There is provided a multilayer ceramic capacitor capable of controlling equivalent series resistance (ESR) characteristics. The multilayer ceramic capacitor includes: a ceramic laminate including dielectric layers and a plurality of internal electrodes having different polarities and alternately stacked between the dielectric layers; and external electrodes formed on both sides of the ceramic laminate, wherein each of the internal electrodes includes a main electrode and a lead for connecting the main electrode to the external electrode, and an equivalent series resistance (ESR) value is determined by adjusting a ratio of a width to a length of the lead, whereby the ESR characteristics of the multilayer ceramic capacitor may be controlled.
    Type: Application
    Filed: November 1, 2011
    Publication date: October 25, 2012
    Inventors: Hae Suk CHUNG, Byoung Hwa Lee, Eun Hyuk Chae, Eun Hye Choi, Kang Heon Hur, Dae Bok Oh
  • Publication number: 20120268859
    Abstract: There is provided a multilayer ceramic capacitor including: a ceramic body including dielectric layers and internal electrodes stacked between the dielectric layers; and a pair of external electrodes each fixed to first and second surfaces of the ceramic body, facing each other, and connected to the internal electrodes, wherein the ceramic body has a third surface facing a printed circuit board and each of the pair of external electrodes includes mounting parts extended onto the third surface and having a preset length by which they are mounted on the printed circuit board and wherein connection parts between the pair of external electrodes and the mounting parts have a convexly curved shape having a size equal to or smaller than a preset corner radius.
    Type: Application
    Filed: October 26, 2011
    Publication date: October 25, 2012
    Inventors: Hae Suk Chung, Dae Bok Oh, Eun Hye Choi, Eun Hyuk Chae, Kang Heon Hur
  • Publication number: 20120229950
    Abstract: There are disclosed a multilayer ceramic capacitor and a method of manufacturing the same. The multilayer ceramic capacitor includes: a ceramic body having a first side and a second side opposed to each other and having a third side and a fourth side connecting the first side to the second side, a plurality of inner electrodes formed within the ceramic body, and outer electrodes formed on the third side and the fourth side and electrically connected to the inner electrodes. A distance from distal edges of the inner electrodes to the first side or the second side of the ceramic body is 30 ?m or less.
    Type: Application
    Filed: October 25, 2011
    Publication date: September 13, 2012
    Inventors: Hyung Joon Kim, Dae Bok Oh
  • Publication number: 20120147515
    Abstract: Disclosed are a multilayer ceramic condenser and a method of manufacturing the same. The method includes printing a plurality of stripe-type inner electrode patterns in parallel on ceramic green sheets; forming a laminate by staking the ceramic green sheets having the plurality of stripe-type inner electrode patterns printed thereon; cutting the laminate in order to have a structure in which first and second inner electrode patterns are alternately stacked; and forming a first side part and a second side part by applying ceramic slurry in order to cover the sides of the laminate to which the first and second inner electrode patterns are exposed.
    Type: Application
    Filed: July 27, 2011
    Publication date: June 14, 2012
    Inventors: Hyung Joon Kim, Jong Hoon Kim, Kang Heon Hur, Dae Bok Oh
  • Publication number: 20120133085
    Abstract: There is provided a method of fabricating a ceramic green sheet, the method including: forming a ceramic green sheet by applying ceramic slurry onto a support substrate; and drying the ceramic green sheet by allowing the ceramic green sheet to pass through a plurality of drying zones, wherein positive internal differential pressure is applied to at least one of drying zones disposed at a front end of the plurality of drying zones, the internal differential pressure being defined as a pressure value obtained by subtracting a discharging pressure (Pout) of each drying zone from an introducing pressure (Pin) thereof.
    Type: Application
    Filed: April 21, 2011
    Publication date: May 31, 2012
    Inventors: Won Seop CHOI, Dae Bok OH
  • Publication number: 20120134068
    Abstract: In a multilayered ceramic capacitor, the width of an exposed portion of an internal electrode is reduced to be narrower than that of a non-exposed portion thereof. A dummy electrode that is not electrically connected to the internal electrode is formed to be connected to an external electrode. Deterioration of reliability due to penetration of the plating solution thereby is prevented and reduction in adhesion of the external electrode due to reduction in width of the exposed portion of the internal electrode is supplemented through mechanical connection between the external electrode and the dummy electrode.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 31, 2012
    Inventors: Eun Hyuk CHAE, Dae Bok Oh, Kang Heon Hur, Hae Suk Chung, Young Don Choi
  • Publication number: 20120049414
    Abstract: There is provided a method of measuring deformation of a laminated body, the method including: laminating and pressurizing a plurality of green sheets each having a plurality of inner electrodes arranged therein to form a laminated body having a plurality of unit chips arranged therein; marking location information of each of the unit chips on an XY plane of the laminated body on a surface of the unit chip; cutting the laminated body into the plurality of unit chips; measuring a deformation level of each of the cut unit chips; and storing the deformation level measured from the each of the cut unit chips to correspond to the location information of the unit chip.
    Type: Application
    Filed: November 7, 2011
    Publication date: March 1, 2012
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Dong Jin KIM, Sung Kyu Ha, Hyo Jung Kim, Ju Ho Kim, Dae Bok Oh, Won Seop Choi
  • Publication number: 20090296080
    Abstract: There is provided a method of measuring deformation of a laminated body, the method including: laminating and pressurizing a plurality of green sheets each having a plurality of inner electrodes arranged therein to form a laminated body having a plurality of unit chips arranged therein; marking location information of each of the unit chips on an XY plane of the laminated body on a surface of the unit chip; cutting the laminated body into the plurality of unit chips; measuring a deformation level of each of the cut unit chips; and storing the deformation level measured from the each of the cut unit chips to correspond to the location information of the unit chip.
    Type: Application
    Filed: March 5, 2009
    Publication date: December 3, 2009
    Inventors: Dong Jin KIM, Sung Kyu Ha, Hyo Jung Kim, Ju Ho Kim, Dae Bok Oh, Won Seop Choi