Patents by Inventor JOJI ARIGA

JOJI ARIGA 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: 10593475
    Abstract: A multi-layer ceramic capacitor includes: a ceramic body that includes a plurality of ceramic layers laminated in one axial direction and includes polycrystal having a Perovskite structure as a main phase, the Perovskite structure containing calcium and zirconium and being expressed by a general expression ABO3, the polycrystal containing silicon, boron, and lithium; first and second internal electrodes alternately disposed between the ceramic layers; a first external electrode provided on an outer surface of the ceramic body and connected to the first internal electrodes; and a second external electrode provided on the outer surface of the ceramic body and connected to the second internal electrodes, the multi-layer ceramic capacitor satisfying 0.2858V+0.4371?CLi?0.1306V+3.0391, where V (mm3) represents a volume of the ceramic body, and CLi (atm %) represents a concentration of the lithium when a concentration of a B-site element of the main phase of the polycrystal is 100 atm %.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: March 17, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Norihiro Arai, Katsuo Sakatsume, Takeshi Nosaki, Masumi Ishii, Joji Ariga
  • Publication number: 20190096578
    Abstract: A multi-layer ceramic capacitor includes: a ceramic body that includes a plurality of ceramic layers laminated in one axial direction and includes polycrystal having a Perovskite structure as a main phase, the Perovskite structure containing calcium and zirconium and being expressed by a general expression ABO3, the polycrystal containing silicon, boron, and lithium; first and second internal electrodes alternately disposed between the ceramic layers; a first external electrode provided on an outer surface of the ceramic body and connected to the first internal electrodes; and a second external electrode provided on the outer surface of the ceramic body and connected to the second internal electrodes, the multi-layer ceramic capacitor satisfying 0.2858V+0.4371?CLi?0.1306V+3.0391, where V (mm3) represents a volume of the ceramic body, and CLi (atm %) represents a concentration of the lithium when a concentration of a B-site element of the main phase of the polycrystal is 100 atm %.
    Type: Application
    Filed: September 10, 2018
    Publication date: March 28, 2019
    Inventors: NORIHIRO ARAI, KATSUO SAKATSUME, TAKESHI NOSAKI, MASUMI ISHII, JOJI ARIGA