Patents by Inventor Keiichi TAKIZAWA

Keiichi TAKIZAWA 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: 11373807
    Abstract: An electronic component device includes: an electronic component having: a base body having a pair of end surfaces facing each other and four side surfaces connecting the pair of end surfaces; and a pair of outer electrodes disposed on respective sides of the pair of end surfaces; metal terminals respectively electrically connected to the pair of outer electrodes; and joint portions joining and electrically connecting the outer electrodes to the metal terminals respectively, wherein the electronic component has a metal portion disposed on at least one surface of the four side surfaces, and the metal portion has a baked metal layer.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: June 28, 2022
    Assignee: TDK CORPORATION
    Inventors: Keiichi Takizawa, Naoto Imaizumi, Shogo Murosawa, Takeru Yoshida
  • Patent number: 10847314
    Abstract: A multilayer capacitor includes an element assembly, a first external electrode, a second external electrode, and a plurality of internal electrodes which are disposed at the inside of the element assembly. The plurality of internal electrodes include a first internal electrode that is electrically connected to the first external electrode, a second internal electrode that is electrically connected to the second external electrode, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected to each other by a first connection conductor and a second connection conductor, a first capacitance portion is constituted by the first internal electrode and the third internal electrodes, a second capacitance portion is constituted by the second internal electrode and the third internal electrodes, and the first capacitance portion and the second capacitance portion are electrically connected in series.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: November 24, 2020
    Assignee: TDK CORPORATION
    Inventors: Takeru Yoshida, Takuya Imaeda, Shogo Murosawa, Hideki Kamo, Naoto Imaizumi, Keiichi Takizawa
  • Patent number: 10804032
    Abstract: A multilayer capacitor includes an element assembly, a first external electrode, a second external electrode, and a plurality of internal electrodes which are disposed at the inside of the element assembly. The plurality of internal electrodes include a first internal electrode that is electrically connected to the first external electrode, a second internal electrode that is electrically connected to the second external electrode, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected to each other by a first connection conductor and a second connection conductor, a first capacitance portion is constituted by the first internal electrode and the third internal electrodes, a second capacitance portion is constituted by the second internal electrode and the third internal electrodes, and the first capacitance portion and the second capacitance portion are electrically connected in series.
    Type: Grant
    Filed: January 19, 2018
    Date of Patent: October 13, 2020
    Assignee: TDK CORPORATION
    Inventors: Takeru Yoshida, Takuya Imaeda, Shogo Murosawa, Hideki Kamo, Naoto Imaizumi, Keiichi Takizawa
  • Patent number: 10622146
    Abstract: A multilayer capacitor includes an element assembly, a first external electrode, a second external electrode, and a plurality of internal electrodes which are disposed at the inside of the element assembly. The plurality of internal electrodes include a first internal electrode that is electrically connected to the first external electrode, a second internal electrode that is electrically connected to the second external electrode, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected to each other by a first connection conductor and a second connection conductor, a first capacitance portion is constituted by the first internal electrode and the third internal electrodes, a second capacitance portion is constituted by the second internal electrode and the third internal electrodes, and the first capacitance portion and the second capacitance portion are electrically connected in series.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: April 14, 2020
    Assignee: TDK CORPORATION
    Inventors: Takeru Yoshida, Takuya Imaeda, Shogo Murosawa, Hideki Kamo, Naoto Imaizumi, Keiichi Takizawa
  • Patent number: 10546694
    Abstract: A multilayer capacitor includes an element, a first external electrode, a second external electrode, and a plurality of internal electrodes. The plurality of internal electrodes include first internal electrodes, second internal electrodes, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected by a connection conductor. First capacity parts are constituted of the first internal electrodes and the third internal electrodes, and second capacity parts are constituted of the second internal electrodes and the third internal electrodes. The first capacity part and the second capacity part are electrically connected in series, and the connection conductor is disposed on at least one of the three lateral surfaces other than the lateral surface that is a mounting surface, among the four lateral surfaces.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: January 28, 2020
    Assignee: TDK CORPORATION
    Inventors: Takeru Yoshida, Hideki Kamo, Naoto Imaizumi, Keiichi Takizawa, Takuya Imaeda, Shogo Murosawa
  • Publication number: 20190189344
    Abstract: A multilayer capacitor includes an element assembly, a first external electrode, a second external electrode, and a plurality of internal electrodes which are disposed at the inside of the element assembly. The plurality of internal electrodes include a first internal electrode that is electrically connected to the first external electrode, a second internal electrode that is electrically connected to the second external electrode, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected to each other by a first connection conductor and a second connection conductor, a first capacitance portion is constituted by the first internal electrode and the third internal electrodes, a second capacitance portion is constituted by the second internal electrode and the third internal electrodes, and the first capacitance portion and the second capacitance portion are electrically connected in series.
    Type: Application
    Filed: January 23, 2019
    Publication date: June 20, 2019
    Applicant: TDK CORPORATION
    Inventors: Takeru YOSHIDA, Takuya IMAEDA, Shogo MUROSAWA, Hideki KAMO, Naoto IMAIZUMI, Keiichi TAKIZAWA
  • Publication number: 20190096580
    Abstract: An electronic component device includes: an electronic component having: a base body having a pair of end surfaces facing each other and four side surfaces connecting the pair of end surfaces; and a pair of outer electrodes disposed on respective sides of the pair of end surfaces; metal terminals respectively electrically connected to the pair of outer electrodes; and joint portions joining and electrically connecting the outer electrodes to the metal terminals respectively, wherein the electronic component has a metal portion disposed on at least one surface of the four side surfaces, and the metal portion has a baked metal layer.
    Type: Application
    Filed: September 20, 2018
    Publication date: March 28, 2019
    Applicant: TDK CORPORATION
    Inventors: Keiichi TAKIZAWA, Naoto IMAIZUMI, Shogo MUROSAWA, Takeru YOSHIDA
  • Publication number: 20190080846
    Abstract: A multilayer capacitor (1) includes an element (2), a first external electrode (3), a second external electrode (4), and a plurality of internal electrodes. The plurality of internal electrodes include first internal electrodes (12), second internal electrodes (14), and a plurality of third internal electrodes (16). The plurality of third internal electrodes (16) are electrically connected by a connection conductor (5). First capacity parts (C1) are constituted of the first internal electrodes (12) and the third internal electrodes (16), and second capacity parts (C2) are constituted of the second internal electrodes (12) and the third internal electrodes (16). The first capacity part (C1) and the second capacity part (C2) are electrically connected in series, and the connection conductor (5) is disposed on at least one of the three lateral surfaces other than the lateral surface that is a mounting surface, among the four lateral surfaces.
    Type: Application
    Filed: September 5, 2018
    Publication date: March 14, 2019
    Applicant: TDK CORPORATION
    Inventors: Takeru YOSHIDA, Hideki KAMO, Naoto IMAIZUMI, Keiichi TAKIZAWA, Takuya IMAEDA, Shogo MUROSAWA
  • Publication number: 20180226191
    Abstract: A multilayer capacitor includes an element assembly, a first external electrode, a second external electrode, and a plurality of internal electrodes which are disposed at the inside of the element assembly. The plurality of internal electrodes include a first internal electrode that is electrically connected to the first external electrode, a second internal electrode that is electrically connected to the second external electrode, and a plurality of third internal electrodes. The plurality of third internal electrodes are electrically connected to each other by a first connection conductor and a second connection conductor, a first capacitance portion is constituted by the first internal electrode and the third internal electrodes, a second capacitance portion is constituted by the second internal electrode and the third internal electrodes, and the first capacitance portion and the second capacitance portion are electrically connected in series.
    Type: Application
    Filed: January 19, 2018
    Publication date: August 9, 2018
    Applicant: TDK CORPORATION
    Inventors: Takeru YOSHIDA, Takuya IMAEDA, Shogo MUROSAWA, Hideki KAMO, Naoto IMAIZUMI, Keiichi TAKIZAWA