Patents by Inventor Chang-Hoon Kim

Chang-Hoon 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: 20160172107
    Abstract: There is provided a dielectric ceramic composition including: a major component (a barium titanate-based base material); and a minor component, wherein the dielectric ceramic composition is sintered to form a sintered body having a fine structure, the fine structure includes first crystal grains in which a Ca content is lower than 2.5 mol % and second crystal grains in which a Ca content is between 2.5 mol % to 13.5 mol %, and the second crystal grains have a cross-sectional area ratio of 30% to 80% on the basis of 100% of an overall cross-sectional area of the fine structure.
    Type: Application
    Filed: April 29, 2015
    Publication date: June 16, 2016
    Inventors: Seok Hyun YOON, Yun Jung Park, Doo Young KIM, Song Je JEON, Chang Hoon KIM
  • Patent number: 9366975
    Abstract: A stage transferring device invention includes: a transferring stage upon which an object is mounted and which transfers the object in an x-y plane; and a stage position measuring device. The stage position measuring device includes a one-dimensional scale on the transferring stage; a one-dimensional scale reading head which is configured to overlap the one-dimensional scale, irradiate a measuring beam to the overlapped one-dimensional scale and measure a 1D y-axis coordinate of the transferring stage; a two-dimensional encoder on the transferring stage; and a two-dimensional encoder reading head which is configured to overlap the two-dimensional encoder, irradiate a measuring beam to the overlapped two-dimensional encoder and measure a 2D x-axis coordinate and a 2D y-axis coordinate of the transferring stage.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hi Kuk Lee, Sang Don Jang, Jae Hyuk Chang, Hyang-Shik Kong, Cha-Dong Kim, Chang Hoon Kim, Jung-In Park, Sang Hyun Yun
  • Patent number: 9368251
    Abstract: A multilayer ceramic capacitor includes a ceramic body including dielectric layers and internal electrodes, electrode layers connected to the internal electrodes, and a conductive resin layer formed on the electrode layer and containing conductive particles, fullerenes, and a base resin.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: June 14, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Kyung Pyo Hong, Doo Young Kim, Chang Hoon Kim, Sang Hyun Park, Hae Sock Chung
  • Publication number: 20160163457
    Abstract: There is provided a dielectric ceramic composition including a base powder, wherein the base powder includes: a first major component represented by BaTiO3, a second major component represented by (Na, K)NbO3, and a third major component represented by (Bi, Na)TiO3. The base powder is represented by xBaTiO3-y(Na, K)NbO3-z(Bi, Na)TiO3, where x+y+z=1, and x, y, and z are represented by mol, and x, y and z satisfy 0.5?x?0.97, 0.01?y?0.48, and 0.02?z?0.2, respectively. In certain embodiments, the base powder is be represented by xBaTiO3-y(Na0.5K0.5NbO3-z(Bi0.5Na0.5)TiO3.
    Type: Application
    Filed: October 28, 2015
    Publication date: June 9, 2016
    Inventors: Seok Hyun YOON, Yun Jung PARK, Doo Young KIM, Song Je JEON, Chang Hoon KIM
  • Publication number: 20160163458
    Abstract: A ceramic dielectric composition contains a base material powder represented by one or more of (Ca1-xSrx)(Zr1-yTiy)O3, Ca(Zr1-yTiy)O3, Sr(Zr1-yTiy)O3, (Ca1-xSrx)ZrO3, and (Ca1-xSrx)TiO3, in which x and y satisfy 0?x?1.0 and 0.2?y?0.9, respectively. The ceramic dielectric composition may have high room-temperature permittivity and excellent ESD protection characteristics and may secure withstand voltage characteristics while implementing relatively high capacitance.
    Type: Application
    Filed: November 9, 2015
    Publication date: June 9, 2016
    Inventors: Jae Sung PARK, Seok Hyun YOON, Chang Hoon KIM, Doo Young KIM, Soo Kyong JO
  • Patent number: 9349537
    Abstract: Disclosed herein is a multilayer ceramic device including: a device body having side surfaces spaced apart from each other and circumferential surfaces connecting the side surfaces to each other; internal electrodes disposed in a length direction of the device body in the device body; external electrodes having a front surface portion covering the side surfaces and a band portion extended from the front surface portion and covering portions of the circumferential surfaces; and crack guide patterns disposed in the device body and guiding a progress direction of a crack generated from the circumferential surfaces so that the crack is directed toward the side surface, wherein the crack guide pattern includes: a first metal pattern; and a second metal pattern disposed to be closer to the circumferential surface as compared with the first metal pattern and having gaps.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: May 24, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hae Sock Chung, Doo Young Kim, Na Rim Ha, Chang Hoon Kim, Sang Hyun Park
  • Patent number: 9343235
    Abstract: A multilayer ceramic capacitor may include: a ceramic body having upper and lower surfaces opposing each other in a thickness direction thereof and first and second end surfaces opposing each other in a length direction thereof, a thickness of the ceramic body being greater than a width thereof; a first external electrode disposed on the first end surface to allow a predetermined region of the first end surface adjacent to the upper surface to be exposed; a second external electrode disposed on the second end surface to allow a predetermined region of the second end surface adjacent to the upper surface to be exposed; and first and second internal electrodes disposed within the ceramic body, stacked in a width direction of the ceramic body, and connected to the first and second external electrodes, respectively.
    Type: Grant
    Filed: July 28, 2014
    Date of Patent: May 17, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Ho Lee, Doo Young Kim, Chang Hoon Kim, Myung Jun Park
  • Patent number: 9335631
    Abstract: A photosensitive resin composition includes an acid-labile resin of about 5 wt % to about 25 wt %, a monomer of about 5 wt % to about 10 wt %, a photoacid generator of about 5 wt % to about 10 wt %, a photoreaction accelerator of about 1 wt % to about 5 wt %, and a solvent of about 50 wt % to about 84 wt %, wherein the acid-labile resin comprises a repeating unit containing an acid group, and a protecting group configured to protect the repeating unit.
    Type: Grant
    Filed: July 29, 2014
    Date of Patent: May 10, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ki-Beom Lee, Sang-Hyun Yun, Hi-Kuk Lee, Jae-Hyuk Chang, Chang-Hoon Kim, Jung-In Park
  • Patent number: 9334192
    Abstract: The present invention relates to a dielectric ceramic composition, method for preparing the same, and electronic device using the same. According to the present invention, there is provided a dielectric ceramic composition which allows use of a nickel internal electrode, sintering under a reducing atmosphere, and having 1000 or higher dielectric constant while providing excellent dc-bias properties and reliability which is close to paraelectric property. The composition of the present invention can generate high effective capacity under high DC voltage, have strong resistance against electrostatic discharge (ESD) damage, and be used for preparing an electronic device having low acoustic noise.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: May 10, 2016
    Assignees: SAMSUNG ELECTRO-MECHANICS CO., LTD., RESEARCH & BUSINESS FOUNDATION SUNGKYUNKWAN UNIVERSITY
    Inventors: Seok-Hyun Yoon, Masaki Takaki, Yoon-Ah Roh, Dae-Ho Yoon, Chang-Hoon Kim, Doo-Young Kim
  • Patent number: 9336952
    Abstract: There is provided a multilayer ceramic capacitor including a ceramic body including a plurality of dielectric layers, a plurality of first and second internal electrodes disposed in the ceramic body to be alternately exposed to first and second end surfaces of the ceramic body, having the dielectric layer therebetween, first and second electrode layers electrically connected to the first and second internal electrodes, respectively, a conductive resin layer formed on the first and second electrode layers and in regions of the ceramic body adjacent to the first and second electrode layers, and a coating layer formed between a portion of an outer surface of the ceramic body on which the conductive resin layer is to be formed and the conductive resin layer.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: May 10, 2016
    Assignee: SAMSUNG ELECTRO-MECANICS CO., LTD.
    Inventors: Hae Sock Chung, Doo Young Kim, Na Rim Ha, Chang Hoon Kim, Kyung Pyo Hong, Sang Hyun Park
  • Patent number: 9336946
    Abstract: The present application describes a multilayer ceramic electronic component including a ceramic body having a thickness greater than a width and includes a dielectric layers, and has upper and lower surfaces opposing each other in a thickness direction. First and second side surfaces oppose each other in a width direction, and first and second end surfaces oppose each other in a length direction. First and second internal electrodes are stacked with at least one of the dielectric layers interposed therebetween within the ceramic body in the width direction. A volume increasing part is disposed in a lower portion of the ceramic body in the thickness direction to allow a volume of a lower margin portion of the ceramic body to be greater than that of an upper margin portion thereof.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: May 10, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jong Ho Lee, Doo Young Kim, Chang Hoon Kim, Byung Soo Kim
  • Patent number: 9330845
    Abstract: A dielectric composition may include a first dielectric powder; and a second dielectric powder having an average grain size smaller than that of the first dielectric powder and included in the dielectric composition in an amount of 0.01 to 1.5 parts by weight based on 100 parts by weight of the first dielectric powder, and a multilayer ceramic capacitor formed using the same. A multilayer ceramic capacitor may include: a ceramic body including dielectric layers; first and second internal electrodes disposed in the ceramic body to face each other with the respective dielectric layers interposed therebetween; and first and second external electrodes electrically connected to the first and second internal electrodes, respectively. The dielectric layers are formed of a dielectric composition including a first dielectric powder and a second dielectric powder having an average grain size smaller than that of the first dielectric powder and included in the dielectric composition in an amount of 0.01 to 1.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: May 3, 2016
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jae Sung Park, Sang Hyuk Kim, Chan Hee Nam, Chang Hoon Kim, Seok Hyun Yoon, Doo Young Kim
  • Patent number: 9324921
    Abstract: The present invention relates to a light-emitting diode package. According to the present invention, a light-emitting diode package comprises: a substrate for growth; a passivation layer formed on a surface of one side of the substrate for growth; and a package substrate having a main body portion and a wall portion, wherein the wall portion is formed on the main body portion. At least the space formed among the main body portion, the wall portion and the passivation layer is sealed from the outside.
    Type: Grant
    Filed: October 8, 2012
    Date of Patent: April 26, 2016
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jun Yong Park, Daewoong Suh, Bo Ram I Jang, Hee Cheul Jung, Kyu Ho Lee, Chang Hoon Kim
  • Publication number: 20160111210
    Abstract: Disclosed herein is a multilayer ceramic device. The multilayer ceramic device according to an exemplary embodiment of the present invention includes: a device body having sides which are spaced apart from each other and a circumferential surface which connects the sides; an internal electrode disposed in a longitudinal direction of the device body within the device body; an external electrode having a front part which covers the sides and a band part which extends from the front part to cover a portion of the circumferential surface; and a crack guide pattern disposed within the device body and guiding a progress direction of cracks occurring at the circumferential surface to the sides, wherein the crack guide pattern includes: a metal pattern; and an oxide layer formed on a surface of the metal pattern.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 21, 2016
    Inventors: Hae Sock CHUNG, Doo Young KIM, Na Rim HA, Chang Hoon KIM, Sang Hyun PARK
  • Patent number: 9316923
    Abstract: Provided are an exposure apparatus and an exposure method using the same. The exposure apparatus includes: a light source unit configured to emit light; a substrate stage supporting a substrate, the substrate comprising an exposure area and a non-exposure area; and a prism unit disposed between the light source unit and the substrate stage, the prism unit movable so as to transmit the light to the exposure area and to block the light from the non-exposure area.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: April 19, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang-Hoon Kim, Gug-Rae Jo, Hong-Suk Yoo, Bo-Kyoung Ahn
  • Publication number: 20160104552
    Abstract: There is provided a conductive resin composition including epoxy resin, copper powder particles, and non-nitrogen-based hardeners.
    Type: Application
    Filed: December 18, 2015
    Publication date: April 14, 2016
    Inventors: Sung Koo KANG, Myung Jun PARK, Hyun Hee GU, Kyung Pyo HONG, Chang Hoon KIM
  • Patent number: 9305705
    Abstract: There is provided a multilayer ceramic electronic component including a ceramic body having internal electrodes formed therein, external electrodes formed on external surfaces of the ceramic body and connected to the internal electrodes, and a buffer layer formed on surfaces of contact between the internal electrodes and the external electrodes among external surfaces of the ceramic body, in an interior direction of the ceramic body, wherein when a thickness of the external electrode is denoted by T, a thickness of the buffer layer is denoted by t, a thickness of an active region is denoted by TA, and a thickness of the ceramic body is denoted by Tc, T?10 ?m, TA/TC>0.8, and t?5 ?m, so that a multilayer ceramic electronic component having excellent reliability may be realized.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: April 5, 2016
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byung Jun Jeon, Kyu Ha Lee, Hyun Hee Gu, Chang Hoon Kim, Myung Jun Park
  • Patent number: 9304402
    Abstract: The present invention relates to a method of controlling a light exposure apparatus including an exposure beam generator equipped with a prism or a bend mirror and a vacuum chamber through which light generated in the exposure beam generator passes. The method includes, generating an exposure beam; measuring a deviation of a center of the exposure beam from a reference line in the vacuum chamber; and adjusting the prism or the bend mirror in the exposure beam generator to adjust the center of the exposure beam when the center of the exposure beam is misaligned with the reference line.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: April 5, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Tsunemitsu Torigoe, Hong Suk Yoo, Chang Hoon Kim
  • Publication number: 20160090325
    Abstract: The present invention relates to a dielectric ceramic composition, method for preparing the same, and electronic device using the same. According to the present invention, there is provided a dielectric ceramic composition which allows use of a nickel internal electrode, sintering under a reducing atmosphere, and having 1000 or higher dielectric constant while providing excellent dc-bias properties and reliability which is close to paraelectric property. The composition of the present invention can generate high effective capacity under high DC voltage, have strong resistance against electrostatic discharge (ESD) damage, and be used for preparing an electronic device having low acoustic noise.
    Type: Application
    Filed: March 18, 2015
    Publication date: March 31, 2016
    Inventors: Seok-Hyun YOON, Masaki TAKAKI, Yoon-Ah ROH, Dae-Ho YOON, Chang-Hoon KIM, Doo-Young KIM
  • Patent number: 9298098
    Abstract: A light exposer according to an embodiment of the present invention includes an exposure beam generator generating an exposure beam, and a vacuum chamber passing the exposure beam generated by the exposure beam generator and including a first fly eye lens having a plurality of convex lens like fly eyes. The exposure beam generator includes an oscillator including an oscillator pumping chamber, a first prism and a second prism, and a first exposure beam diameter changing lens positioned before the first prism and enlarging a diameter of the exposure beam.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 29, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tsunemitsu Torigoe, Chang Hoon Kim, Kab Jong Seo