Patents by Inventor Noriaki HAMACHI

Noriaki HAMACHI 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: 10848119
    Abstract: An element body includes a first function portion including a first material, a second function portion including a second material different from the first material, and an intermediate portion placed between the first function portion and the second function portion. The intermediate portion includes a first component included in the first material, and a second component included in the second material. A side surface of the element body includes surfaces of the first function portion, the second function portion, and the intermediate portion. Each of terminal electrodes includes electrode portion formed on the side surface across the surfaces of the first function portion, the second function portion, and the intermediate portion. An insulating layer is formed on the side surface in such a manner as to be in contact with at least a region exposed from the electrode portions between the electrode portions in the surface of the intermediate portion.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: November 24, 2020
    Assignee: TDK CORPORATION
    Inventors: Akihiko Oide, Yoji Tozawa, Seiichi Nakagawa, Shinichi Kondo, Takashi Endo, Makoto Yoshino, Noriaki Hamachi
  • Publication number: 20200234873
    Abstract: A multilayer coil component 1 includes an element body 2, a coil 8, and a terminal electrode 4 and a terminal electrode 5. Each of the terminal electrode 4 and the terminal electrode 5 is disposed over at least the end surfaces 2a and 2b and a main surface 2d. Each of the terminal electrode 4 and the terminal electrode 5 and at least a part of the coil 8 overlap when viewed from the facing direction of the pair of side surfaces 2e and 2f. Each of the terminal electrode 4 and the terminal electrode 5 and the coil 8 do not overlap when viewed from the facing direction of the pair of end surfaces 2a and 2b.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 23, 2020
    Applicant: TDK Corporation
    Inventors: Hajime KATO, Hidekazu SATO, Makoto YOSHINO, Kazuya TOBITA, Yuto SHIGA, Youichi KAZUTA, Noriaki HAMACHI
  • Publication number: 20200234874
    Abstract: A multilayer coil component 1 includes four terminal electrodes 3, 4, 5, and 6. A part of the coil 8 as viewed from the facing direction of a pair of main surfaces 2c and 2d is disposed in at least one of first and second regions A1 and A2 formed between the pair of terminal electrodes 3 and 4 and the pair of terminal electrodes 5 and 6 disposed so as to face each other in the facing direction of the pair of side surfaces 2e and 2f and third and fourth regions formed between the pair of terminal electrodes 3 and 5 and the pair of terminal electrodes 4 and 6 disposed so as to face each other in the facing direction of the pair of end surfaces 2a and 2b.
    Type: Application
    Filed: January 17, 2020
    Publication date: July 23, 2020
    Applicant: TDK CORPORATION
    Inventors: Hajime KATO, Hidekazu SATO, Makoto YOSHINO, Kazuya TOBITA, Yuto SHIGA, Youichi KAZUTA, Noriaki HAMACHI
  • Publication number: 20200203051
    Abstract: A multilayer coil component 1 includes an element 2 having a plurality of stacked insulator layers 6 and a coil 8 disposed in the element 2. The coil 8 has a plurality of coil conductors and a connection conductor interconnecting one of the coil conductors and another of the coil conductors. A plurality of the connection conductors are spaced apart only in a direction intersecting with an extension direction of the coil conductors at a position of the connection by the connection conductor.
    Type: Application
    Filed: December 19, 2019
    Publication date: June 25, 2020
    Applicant: TDK CORPORATION
    Inventors: Youichi KAZUTA, Kazuya TOBITA, Yuto SHIGA, Noriaki HAMACHI
  • Publication number: 20200176173
    Abstract: A first dimension of each of a first connection portion 12 and a second connection portion 14 in the direction in which a pair of side surfaces 2e and 2f face each other is smaller than an inner diameter W2 of a coil 8 in the direction and is larger than a width W1 of each of a plurality of coil conductors in the direction. A second dimension of each of the first connection portion 12 and the second connection portion 14 in the direction in which a pair of main surfaces 2c and 2d face each other is larger than a thickness H1 of each of the plurality of coil conductors in the direction and is smaller than a height H2 of the coil 8 in the direction.
    Type: Application
    Filed: November 26, 2019
    Publication date: June 4, 2020
    Applicant: TDK CORPORATION
    Inventors: Kazuya TOBITA, Yuto SHIGA, Youichi KAZUTA, Noriaki HAMACHI
  • Publication number: 20200098507
    Abstract: A multilayer coil component includes an element body including a plurality of laminated insulator layers, and a coil disposed in the element body. The coil includes a first coil conductor having a first inner diameter, a second coil conductor having a second inner diameter smaller than the first inner diameter, and a connection conductor connecting the first coil conductor and the second coil conductor. The second coil conductor is adjacent to the first coil conductor in a direction in which the plurality of insulator layers are laminated. The connection conductor has a shape along the first coil conductor and the second coil conductor.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 26, 2020
    Applicant: TDK CORPORATION
    Inventors: Yuto SHIGA, Hajime KATO, Kazuya TOBITA, Youichi KAZUTA, Noriaki HAMACHI, Makoto YOSHINO
  • Publication number: 20200066431
    Abstract: An electronic component includes an element provided with a recess, a mounting conductor disposed in the recess, and an internal conductor disposed inside the element and connected to the mounting conductor. A first region includes a first surface. A second region includes a third surface connecting a second surface and the first surface. The second surface and the third surface overlap with the first surface as viewed in a direction in which the first surface and the second surface face each other. The internal conductor is connected to the second region away from a connection portion between the first surface and the third surface.
    Type: Application
    Filed: August 12, 2019
    Publication date: February 27, 2020
    Applicant: TDK CORPORATION
    Inventors: Yuto SHIGA, Hajime KATO, Kazuya TOBITA, Youichi KAZUTA, Noriaki HAMACHI, Makoto YOSHINO
  • Publication number: 20190348214
    Abstract: In a multilayer coil component 1, a coil 7 includes a first connection part 22a and a second connection part 26a, the first connection part 22a is connected to one end part of the coil 7, which part is placed on a side of one principal surface 2c, and is arranged in an identical dielectric layer 6 with a conductor 22 included in the one end part, the second connection part 26a is connected to the other end part of the coil 7, which part is placed on a side of the other principal surface 2d, and is arranged in an identical dielectric layer 6 with a conductor 26 included in the other end part, and recessed parts 8a and 8b and recessed parts 9a and 9b are respectively provided in the first terminal electrode 4 and the second terminal electrode 5 in the element body 2.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 14, 2019
    Applicant: TDK CORPORATION
    Inventors: Kazuya TOBITA, Hajime KATO, Makoto YOSHINO, Youichi KAZUTA, Yuto SHIGA, Noriaki HAMACHI
  • Publication number: 20190333686
    Abstract: A multilayer coil component includes an element assembly that has a first surface and second surfaces and extending in a direction orthogonal to the first surface, and terminal electrodes that has first electrode parts extending in a direction orthogonal to the first surface along the second surfaces. At least a portion of the first electrode parts of the terminal electrodes is disposed inside the element assembly. The element assembly is present between imaginary lines extending in a direction parallel to the first surface toward the second surfaces from a position farthest from the first surface in a direction orthogonal to the first surface in the first electrode parts positioned inside the element assembly and the first surface.
    Type: Application
    Filed: April 23, 2019
    Publication date: October 31, 2019
    Applicant: TDK CORPORATION
    Inventors: Youichi KAZUTA, Hajime KATO, Makoto YOSHINO, Kazuya TOBITA, Yuto SHIGA, Noriaki HAMACHI
  • Publication number: 20190237239
    Abstract: A laminated coil component 1 includes an element body 2, a coil 8 disposed in the element body 2, and a first external electrode 4 and a second external electrode 5, and at least a part of the coil 8 is disposed in a first region A1 and a second region A2 when seen in a facing direction of the pair of side surfaces 2e and 2f, and the coil 8 is not disposed in a third region A3 and a fourth region A4 when seen in the facing direction of the pair of side surfaces 2e and 2f.
    Type: Application
    Filed: January 16, 2019
    Publication date: August 1, 2019
    Applicant: TDK CORPORATION
    Inventors: Hajime KATO, Satoru OKAMOTO, Masahiro KATO, Makoto YOSHINO, Kazuya TOBITA, Yuto SHIGA, Youichi KAZUTA, Noriaki HAMACHI
  • Publication number: 20190123705
    Abstract: An element body includes a first function portion including a first material, a second function portion including a second material different from the first material, and an intermediate portion placed between the first function portion and the second function portion. The intermediate portion includes a first component included in the first material, and a second component included in the second material. A side surface of the element body includes surfaces of the first function portion, the second function portion, and the intermediate portion. Each of terminal electrodes includes electrode portion formed on the side surface across the surfaces of the first function portion, the second function portion, and the intermediate portion. An insulating layer is formed on the side surface in such a manner as to be in contact with at least a region exposed from the electrode portions between the electrode portions in the surface of the intermediate portion.
    Type: Application
    Filed: October 15, 2018
    Publication date: April 25, 2019
    Applicant: TDK CORPORATION
    Inventors: Akihiko OIDE, Yoji TOZAWA, Seiichi NAKAGAWA, Shinichi KONDO, Takashi ENDO, Makoto YOSHINO, Noriaki HAMACHI