Patents by Inventor Jae Yeol Choi

Jae Yeol 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).

  • Patent number: 9978514
    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: Grant
    Filed: November 14, 2013
    Date of Patent: May 22, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Byung Woo Han, Dae Bok Oh, Jae Yeol Choi, Sang Huk Kim
  • Patent number: 9974183
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including: an active part with dielectric layers interposed with a plurality of first and second internal electrodes; an upper cover part above the active part; a lower cover part below the active part and having a thickness greater than that of the upper cover part; and first and second external electrodes electrically connected to the first and second internal electrodes, respectively, wherein the first and second external electrodes are disposed on respective end surfaces of the ceramic body in a length direction and on a lower surface of the ceramic body in a thickness direction and are not disposed on an upper surface of the ceramic body in the thickness direction.
    Type: Grant
    Filed: January 9, 2017
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Eun Hyuk Chae, Hyun Hee Gu, Jong Ho Lee, Jae Yeol Choi
  • Publication number: 20180122576
    Abstract: A multilayer electronic component includes a body, first and second external electrodes, and first and second side parts. The body includes a multilayer structure in which first and second internal electrode patterns are alternately stacked and contains a dielectric material. The first and second side parts are disposed on outer surfaces of the body to face each other. The first and second external electrodes are disposed on outer surfaces of the body to face each other. The first internal electrode patterns are exposed to a third surface and a fifth surface of the body on which the first external electrode and the first side part are disposed, respectively. Additionally, the second internal electrode patterns are exposed to a fourth surface and a sixth surface of the body on which the second external electrode and the second side part are disposed, respectively.
    Type: Application
    Filed: December 27, 2017
    Publication date: May 3, 2018
    Inventors: Yong Min HONG, Jae Yeol CHOI, Ki Pyo HONG
  • Patent number: 9953766
    Abstract: A multilayer ceramic electronic component includes a ceramic body including an electrode structure including internal electrodes stacked to face each other with respective dielectric layers interposed therebetween and alternately exposed to first and second end surfaces thereof and ceramic bands enclosing regions spaced apart from the first and second end surfaces of the electrode structure; and external electrodes covering the first and second end surfaces of the electrode structure and at least portions of surfaces of the electrode structure connected to the first and second end surfaces of the electrode structure, respectively.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: April 24, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hong Tack Shin, Jae Yeol Choi, Ji Hea Kim
  • Patent number: 9947468
    Abstract: A multilayer ceramic electronic component includes: a capacitor body including a plurality of dielectric layers and a plurality of internal electrodes; with external electrodes disposed on the capacitor body and electrically connected to the internal electrodes, wherein the capacitor body includes an active region in which internal electrodes having different polarities from each other overlap each other to form capacitance, and a margin part defined as region except for the active region. A concentration of an additive element in the margin part is higher than the concentration of the additive element in the active region, and the margin part has a concentration gradient of the additive element from a surface of the capacitor body toward the active region.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: April 17, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jin Seong Kim, Chang Hoon Kim, Doo Young Kim, Tae Young Kim, Seok Hyun Yoon, Jae Yeol Choi, Jae Sung Park
  • Publication number: 20180082790
    Abstract: A multilayer ceramic capacitor includes a ceramic body including an active portion including dielectric layers and internal electrodes that are alternately stacked and a margin portion disposed on outer surfaces of the active portion; and external electrodes disposed on outer surfaces of the ceramic body. The margin portion includes an inner half adjacent to the active portion and an outer half adjacent to the edge of the ceramic body, and a porosity of the inner half is greater than a porosity of the outer half.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 22, 2018
    Inventors: Min Hee HONG, Chul Seung LEE, Won Seh LEE, Doo Young KIM, Chang Hoon KIM, Jae Yeol CHOI, Hyeun Tea YOON
  • Publication number: 20180068793
    Abstract: A capacitor component includes a body, a plurality of internal electrodes disposed in the body, connection electrodes extended in a thickness direction of the body and electrically connected to the plurality of internal electrodes, upper electrodes disposed on an upper surface of the body and electrically connected to the connection electrodes, and lower electrodes disposed on a lower surface of the body and electrically connected to the connection electrodes A thickness of the upper electrodes is different from that of the lower electrodes, and an area of contact between the upper electrodes and the body is different from an area of contact between the lower electrodes and the body.
    Type: Application
    Filed: April 12, 2017
    Publication date: March 8, 2018
    Inventors: Taek Jung LEE, Hyo Youn LEE, Won Young LEE, Sung Kwon AN, Jae Yeol CHOI, Jin Kyung JOO
  • Publication number: 20180068794
    Abstract: A capacitor component includes a plurality of unit laminates, each comprising a body with a stacked structure including a plurality of internal electrodes and connection electrodes that extend in a stacking direction of the body and electrically connect to the plurality of internal electrodes, and pad portions between adjacent unit laminates to electrically connect the respective connection electrodes of the unit laminates above and below the pad portions to each other.
    Type: Application
    Filed: April 14, 2017
    Publication date: March 8, 2018
    Inventors: Taek Jung LEE, Jin Kyung JOO, Hyo Youn LEE, Won Young LEE, Sung Kwon AN, Jae Yeol CHOI, Jin Man JUNG
  • Publication number: 20180068795
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including dielectric layers and internal electrodes, stacked to be alternately exposed to one end surface and the other end surface of the ceramic body, with each of the dielectric layers interposed therebetween; and external electrodes disposed on outer surfaces of the ceramic body. The external electrodes include electrode layers connected to the internal electrodes, electrically insulating layers disposed on the electrode layers, and plating layers disposed on one surface of the ceramic body in a thickness direction of the ceramic body and connected to the electrode layers, respectively, and the electrode layers contain nickel.
    Type: Application
    Filed: April 21, 2017
    Publication date: March 8, 2018
    Inventors: Yong PARK, Ki Pyo HONG, Jin Yung RYU, Jae Yeol CHOI
  • Patent number: 9911530
    Abstract: A coil component includes: a coil part including a first coil layer and a second coil layer disposed above the first coil layer, wherein the first coil layer includes a first insulating layer having a first opening pattern and a first conductive layer disposed in the first opening pattern, and the second coil layer includes a second insulating layer having a second opening pattern, a seed layer covering inner side surfaces and a lower surface of the second opening pattern, and a second conductive layer disposed in the second opening pattern.
    Type: Grant
    Filed: March 24, 2016
    Date of Patent: March 6, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Ju Hwan Yang, Seok Il Hong, Doo Young Kim, Jae Yeol Choi
  • Patent number: 9875839
    Abstract: A magnetic composition includes: coarse powder containing a non-crystalline iron-based material; medium powder containing a crystalline iron-based material; and fine powder containing nickel. A ratio of the coarse powder and the medium powder is in a range of 65:35 to 80:20, and the amount of the fine powder is in a range of 3 wt % to 7 wt % on the basis of a total weight of the coarse powder and the medium powder.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: January 23, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Youn Kyu Choi, Mi Jung Kang, Hea Ah Kim, Yun Young Yang, Jae Yeol Choi
  • Publication number: 20180019064
    Abstract: A multilayer capacitor includes a capacitor body including dielectric layers, first and second internal electrodes alternately disposed, with one of the dielectric layers interposed therebetween, and first and second groove parts formed in first and second surfaces of the capacitor body opposing each other to extend in a first direction in which the dielectric layers are stacked, and contacting the first and second internal electrodes, respectively; and first and second via electrodes formed in the first and second groove parts, respectively, and electrically connected to the first and second internal electrodes, respectively.
    Type: Application
    Filed: May 15, 2017
    Publication date: January 18, 2018
    Inventors: Jin Ok HAN, Jin Kyung JOO, Jin Ju PARK, Jae Yeol CHOI, Hong Seok KIM
  • Patent number: 9859058
    Abstract: A multilayer ceramic capacitor includes a ceramic body including an active portion including dielectric layers and internal electrodes that are alternately stacked and a margin portion disposed on outer surfaces of the active portion; and external electrodes disposed on outer surfaces of the ceramic body. The margin portion includes an inner half adjacent to the active portion and an outer half adjacent to the edge of the ceramic body, and a porosity of the inner half is greater than a porosity of the outer half.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: January 2, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Min Hee Hong, Chul Seung Lee, Won Seh Lee, Doo Young Kim, Chang Hoon Kim, Jae Yeol Choi, Hyeun Tea Yoon
  • Publication number: 20170367187
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including: an active part with dielectric layers interposed with a plurality of first and second internal electrodes; an upper cover part above the active part; a lower cover part below the active part and having a thickness greater than that of the upper cover part; and first and second external electrodes electrically connected to the first and second internal electrodes, respectively, wherein the first and second external electrodes are disposed on respective end surfaces of the ceramic body in a length direction and on a lower surface of the ceramic body in a thickness direction and are not disposed on an upper surface of the ceramic body in the thickness direction.
    Type: Application
    Filed: January 9, 2017
    Publication date: December 21, 2017
    Inventors: Eun Hyuk CHAE, Hyun Hee GU, Jong Ho LEE, Jae Yeol CHOI
  • Patent number: 9818547
    Abstract: A multilayer ceramic electronic component includes a ceramic body including a plurality of dielectric layers stacked on each other and having first and second surfaces opposing each other in a first direction, third and fourth surfaces opposing each other in a second direction, parallel to a stacking direction and connected to the first and second surfaces, and fifth and sixth surfaces opposing each other in a third direction and connected to the first to fourth surfaces, first and second external electrodes disposed on the first and second surfaces of the ceramic body, respectively, first and second conductive thin films disposed on at least one of the third and fourth surfaces, connected to the first and second external electrodes, respectively, and having a thickness lower than that of the first and second external electrodes, and first and second solder preventing films disposed on the first and second external electrodes, respectively.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: November 14, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Gun Jung Yoon, Hyun Hee Gu, Hye Young Choi, Jin Woo Lee, Jae Yeol Choi
  • Publication number: 20170287640
    Abstract: A multilayer ceramic electronic component includes: a ceramic body including dielectric layers and internal electrodes; and external electrodes disposed on external surfaces of the ceramic body, wherein the external electrodes include seed layers disposed on at least one surface of the ceramic body in a thickness direction, first electrode layers electrically connected to the internal electrodes and the seed layers, and plating layers disposed on the seed layers and the first electrode layers, respectively, and 0.8?T2/T1?1.2, where T1 is a thickness of each of the first electrode layers in a central region of the ceramic body in the thickness direction, and T2 is a thickness of each of the first electrode layers at a point at which an outermost internal electrode, among the internal electrodes, is positioned.
    Type: Application
    Filed: January 4, 2017
    Publication date: October 5, 2017
    Inventors: Hye Young CHOI, Jae Yeol CHOI, Hyun Hee GU, Bum Su KIM
  • Publication number: 20170278631
    Abstract: A capacitor includes a body having a first surface, a second surface, and a third surface and a fourth surface connecting the first surface to the second surface, and including a first internal electrode and a second internal electrode respectively having a first lead portion and a second lead portion exposed to the second surface, a first external electrode and a second external electrode formed on the second surface of the body, and electrically connected to the first internal electrode and the second internal electrode, respectively, and dummy electrodes formed on the third surface and the fourth surface of the body and extending from edges at which the second surface meets the third surface and the fourth surface.
    Type: Application
    Filed: October 18, 2016
    Publication date: September 28, 2017
    Inventors: Hye Young CHOI, Jae Yeol CHOI, Hyun Hee GU, Bum Su KIM
  • Patent number: 9773604
    Abstract: A power inductor includes: a substrate on which an internal electrode coil pattern is formed; and composite layers formed by alternately stacking first sheets formed of a mixture of coarse metal powder and fine metal powder and second sheets formed of fine metal powder on the internal electrode coil pattern of the substrate, thereby obtaining high inductance.
    Type: Grant
    Filed: November 19, 2015
    Date of Patent: September 26, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Min Young Kim, Jin Mo Ahn, Jae Yeol Choi
  • Publication number: 20170243695
    Abstract: A multilayer ceramic electronic component includes a ceramic body and first and second external electrodes. The ceramic body includes an active region including a plurality of dielectric layers and first and second internal electrodes alternately disposed on surfaces of the plurality of dielectric layers to contribute to capacitance formation, and a protective layer provided on at least one of upper and lower surfaces of the active region. The first and second external electrodes are electrically connected to the first and second internal electrodes, respectively, and formed on both end surfaces of the ceramic body. The ceramic body includes a plurality of first and second dummy electrodes respectively extended from the second and first external electrodes into length-direction margin parts of the active region so as to face the first and second internal electrodes, respectively. Further, step portion absorbing layers are disposed in width-direction margin parts of the active region.
    Type: Application
    Filed: November 4, 2016
    Publication date: August 24, 2017
    Inventors: You Na KIM, Jae Yeol CHOI, Ki Pyo HONG, Jong Ho LEE
  • Patent number: 9704640
    Abstract: There is provided a chip electronic component including; a magnetic body containing magnetic metal powder; an internal coil part embedded in the magnetic body; and a plating spreading prevention part coated on a surface of the magnetic body. The plating spreading prevention part contains phosphate-based glass. Whereby, plating spread generated in the surface of the chip electronic component at the time of forming the external electrodes may be prevented.
    Type: Grant
    Filed: May 6, 2015
    Date of Patent: July 11, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Youn Kyu Choi, Hye Ah Kim, Yun Young Yang, Mi Jung Kang, Jae Yeol Choi