Patents by Inventor Kun Hoi KOO

Kun Hoi KOO 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: 10454445
    Abstract: A common mode filter includes: a body including a filter portion; first and second external electrodes each including an electrode layer including conductive particles, intermetallic compound (IMC) formation particles, and a resin, and disposed on an external surface of the body; and first and second coils disposed in the filter portion, the first and second coils being connected through lead portions to the electrode layers of the first and second external electrodes, respectively. The conductive particles include a first conductive particle and a second conductive particle having a diameter smaller than that of the first conductive particle.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: October 22, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Sang Moon Lee, Bon Seok Koo, Kun Hoi Koo, Sung Ryong Ma, Sung Jin Park, Ha Yoon Song
  • Patent number: 10446320
    Abstract: A multilayer capacitor and a method of manufacturing includes a conductive resin layer of an external electrode disposed on a first electrode layer. The conductive resin layer includes a conductive connecting part and an intermetallic compound contacting the first electrode layer and the conductive connecting part. The conductive connecting part contacts a plurality of metal particles and a second electrode layer, such that the equivalent series resistance (ESR) of the multilayer capacitor is decreased and warpage strength of the multilayer capacitor is improved.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: October 15, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Jung Min Kim, Bon Seok Koo, Jung Wook Seo, Yoon Hee Lee, Kun Hoi Koo
  • Publication number: 20190295773
    Abstract: A multilayer capacitor and a method of manufacturing includes a conductive resin layer of an external electrode disposed on a first electrode layer. The conductive resin layer includes a conductive connecting part and an intermetallic compound contacting the first electrode layer and the conductive connecting part. The conductive connecting part contacts a plurality of metal particles and a second electrode layer, such that the 7 equivalent series resistance (ESR) of the multilayer capacitor is decreased and warpage strength of the multilayer capacitor is improved.
    Type: Application
    Filed: June 14, 2019
    Publication date: September 26, 2019
    Inventors: Jung Min KIM, Bon Seok KOO, Jung Wook SEO, Yoon Hee LEE, Kun Hoi KOO
  • Publication number: 20190206625
    Abstract: A multilayer ceramic capacitor comprises a body including dielectric layers and internal electrodes; and external electrodes disposed on external surfaces of the body, respectively, wherein each of the external electrodes includes a first electrode layer disposed on the one surface of the body and contacting the internal electrodes; a conductive resin layer disposed on the first electrode layer and including a plurality of metal particles, a conductive connecting part surrounding the plurality of metal particles, a base resin, and an intermetallic compound contacting the first electrode layer and the conductive connecting part; and a second electrode layer disposed on the conductive resin layer and contacting the conductive connecting part.
    Type: Application
    Filed: February 8, 2019
    Publication date: July 4, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jung Min Kim, Bon Seok Koo, Jung Wook Seo, Yoon Hee Lee, Kun Hoi Koo
  • Publication number: 20190189349
    Abstract: A multilayer ceramic capacitor comprises a body including dielectric layers and internal electrodes; and external electrodes disposed on external surfaces of the body, respectively, wherein each of the external electrodes includes a first electrode layer disposed on the one surface of the body and contacting the internal electrodes; a conductive resin layer disposed on the first electrode layer and including a plurality of metal particles, a conductive connecting part surrounding the plurality of metal particles, a base resin, and an intermetallic compound contacting the first electrode layer and the conductive connecting part; and a second electrode layer disposed on the conductive resin layer and contacting the conductive connecting part.
    Type: Application
    Filed: February 1, 2019
    Publication date: June 20, 2019
    Applicant: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Jung Min Kim, Bon Seok Koo, Jung Wook Seo, Yoon Hee Lee, Kun Hoi Koo
  • Publication number: 20190013150
    Abstract: A multilayer ceramic capacitor includes a body including a dielectric layer and first and second internal electrodes, and external electrodes disposed on at least one surface of the body. The external electrodes each includes an electrode layer in contact with the first or second internal electrodes, an intermediate layer disposed on the electrode layer and including a first intermetallic compound, and a conductive resin layer disposed on the intermediate layer and including a plurality of metal particles, a second intermetallic compound and a base resin.
    Type: Application
    Filed: May 7, 2018
    Publication date: January 10, 2019
    Inventors: Kun Hoi KOO, Bon Seok KOO, Jung Min KIM, Jun Hyeon KIM, Hae Sol KANG, Soung Jin KIM, Ji Hye HAN, Byung Woo KANG, Chang Hak CHOI
  • Publication number: 20180254138
    Abstract: An electronic component includes an internal electrode and an external electrode electrically connected thereto. The external electrode includes a conductive base having a porous structure and a resin filled in voids in the porous structure of the conductive base. The electronic component further includes a connection layer disposed between the internal electrode and the external electrode.
    Type: Application
    Filed: November 8, 2017
    Publication date: September 6, 2018
    Inventors: Kun Hoi KOO, Byung Woo KANG, Ji Hye HAN, Bon Seok KOO
  • Publication number: 20180234074
    Abstract: A common mode filter includes: a body including a filter portion; first and second external electrodes each including an electrode layer including conductive particles, intermetallic compound (IMC) formation particles, and a resin, and disposed on an external surface of the body; and first and second coils disposed in the filter portion, the first and second coils being connected through lead portions to the electrode layers of the first and second external electrodes, respectively. The conductive particles include a first conductive particle and a second conductive particle having a diameter smaller than that of the first conductive particle.
    Type: Application
    Filed: October 30, 2017
    Publication date: August 16, 2018
    Inventors: Sang Moon LEE, Bon Seok Koo, Kun Hoi Koo, Sung Ryong Ma, Sung Jin Park, Ha Yoon Song
  • Publication number: 20170301468
    Abstract: A multilayer capacitor and a method of manufacturing includes a conductive resin layer of an external electrode disposed on a first electrode layer. The conductive resin layer includes a conductive connecting part and an intermetallic compound contacting the first electrode layer and the conductive connecting part. The conductive connecting part contacts a plurality of metal particles and a second electrode layer, such that the 7equivalent series resistance (ESR) of the multilayer capacitor is decreased and warpage strength of the multilayer capacitor is improved.
    Type: Application
    Filed: March 6, 2017
    Publication date: October 19, 2017
    Inventors: Jung Min KIM, Bon Seok KOO, Jung Wook SEO, Yoon Hee LEE, Kun Hoi KOO