Patents by Inventor Keito YASUDA

Keito YASUDA 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: 20230230737
    Abstract: A multilayer coil component includes: an element body including a plurality of magnetic layers that includes soft magnetic metal particles and is laminated in a first direction; and a coil disposed in the element body. The coil includes a plurality of coil conductors electrically connected to each other. The plurality of magnetic layers includes a first magnetic layer and a second magnetic layer laminated between two coil conductors adjacent to each other in the first direction. An average particle diameter of soft magnetic metal particles included in the second magnetic layer is larger than an average particle diameter of soft magnetic metal particles included in the first magnetic layer.
    Type: Application
    Filed: January 6, 2023
    Publication date: July 20, 2023
    Applicant: TDK CORPORATION
    Inventors: Yusuke NAGAI, Kazuhiro EBINA, Kunihiko KAWASAKI, Shinichi KONDO, Kouichi KAKUDA, Shinichi SATO, Keito YASUDA
  • Publication number: 20230230742
    Abstract: A multilayer coil component includes an element body including an end surface, a coil disposed in the element body, and an external electrode disposed on an end portion of the element body and connected to the coil. The external electrode includes a conductive resin layer. The conductive resin layer includes resin and a plurality of metal particles and is in contact with the end surface. The conductive resin layer includes a metal particle group. The metal particle group consists a plurality of first metal particles included in the plurality of metal particles, and the plurality of first metal particles is adjacent to the end surface and separated from the end surface.
    Type: Application
    Filed: December 21, 2022
    Publication date: July 20, 2023
    Applicant: TDK CORPORATION
    Inventors: Yusuke NAGAI, Kazuhiro EBINA, Kunihiko KAWASAKI, Shinichi KONDO, Yuya ISHIMA, Shinichi SATO, Seiichi NAKAGAWA, Kosuke ITO, Keito YASUDA, Youhei IIDA
  • Publication number: 20230125854
    Abstract: A stacked coil component includes: an element body, a coil disposed inside the element body; and a first outer electrode and a second outer electrode which are disposed in the element body. Each of the first outer electrode and the second outer electrode includes an electrode portion which includes a joining surface joined to the element body, and a plating surface opposite to the joining surface and is formed by plating, and of which at least a part is embedded in the element body.
    Type: Application
    Filed: October 20, 2022
    Publication date: April 27, 2023
    Applicant: TDK CORPORATION
    Inventors: Yusuke NAGAI, Kazuhiro EBINA, Takahiro SATO, Kunihiko KAWASAKI, Shinichi SATO, Seiichi NAKAGAWA, Kouichi KAKUDA, Mitsuharu KOIKE, Keito YASUDA, Takato SASAKI
  • Publication number: 20220181073
    Abstract: In a multilayer coil component, a coil is configured by electrically connecting coil conductors respectively provided in magnetic body layers constituting an element body and metal magnetic particles have a normal particle having an ellipsoidal shape and flat particles having an ellipsoidal shape flatter in a thickness direction than the normal particle. A plurality of the normal particles and at least one of the flat particles disposed such that a surface (reference surface) including a major axis direction orthogonal to the thickness direction and a minor axis direction is along the forming surface of the coil conductor in the magnetic body layer are arranged in the lamination direction of the magnetic body layers between the coil conductors.
    Type: Application
    Filed: November 10, 2021
    Publication date: June 9, 2022
    Applicant: TDK CORPORATION
    Inventors: Yusuke NAGAI, Kazuhiro EBINA, Kouichi KAKUDA, Kunihiko KAWASAKI, Shinichi KONDO, Yuya ISHIMA, Masaki TAKAHASHI, Takahiro SATO, Keito YASUDA, Shingo HATTORI
  • Publication number: 20220108835
    Abstract: A multilayer coil component includes: an element body containing a plurality of metal magnetic particles; a coil disposed in the element body; and an external electrode disposed on a surface of the element body and electrically connected to the coil. At least a part of a void part between the metal magnetic particles in the element body is filled with a first resin, the external electrode has a resin electrode containing a second resin and a conductor powder dispersed in the second resin, and the second resin connected from the resin electrode extends into the element body.
    Type: Application
    Filed: September 30, 2021
    Publication date: April 7, 2022
    Applicant: TDK CORPORATION
    Inventors: Yusuke NAGAI, Takashi SUZUKI, Kazuhiro EBINA, Kunihiko KAWASAKI, Shinichi KONDO, Yuya ISHIMA, Shinichi SATO, Seiichi NAKAGAWA, Keito YASUDA, Ryuichi WADA
  • Publication number: 20220108836
    Abstract: In a multilayer coil component, a part filled with a resin and a void part not filled with the resin exist between a plurality of metal magnetic particles in an element body, one main surface of the element body is a mounting surface with respect to an external electronic component, and the edge of an external electrode is positioned on the mounting surface. In the element body, a high void region where the porosity caused by the void part is higher than the porosity of the other part in the element body extends from the edge of the external electrode on the mounting surface toward an end surface of the element body.
    Type: Application
    Filed: September 30, 2021
    Publication date: April 7, 2022
    Applicant: TDK CORPORATION
    Inventors: Yusuke NAGAI, Takashi SUZUKI, Kazuhiro EBINA, Kunihiko KAWASAKI, Shinichi KONDO, Keito YASUDA, Ryuichi WADA, Makoto MORITA, Takashi KUDO, Kyohei TONOYAMA