Patents by Inventor Kazutoshi SUGII

Kazutoshi SUGII 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: 20190371503
    Abstract: A magnetic composite contains a ferrite composition and zinc silicate. The ferrite composition is composed of a spinel ferrite and bismuth oxide present in the spinel ferrite, and the percentage by weight of bismuth oxide to the whole magnetic composite is about 0.025% by weight or more and about 0.231% by weight or less (i.e., from about 0.025% by weight to about 0.231% by weight). The percentage by weight of zinc silicate based on the total weight of zinc silicate and the spinel ferrite is about 8% by weight or more and about 76% by weight or less (i.e., from about 8% by weight to about 76% by weight).
    Type: Application
    Filed: May 22, 2019
    Publication date: December 5, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Kazutoshi SUGII, Kenichi KATO
  • Patent number: 10074467
    Abstract: A frequency-dependent resistance element includes an element assembly composed of a sintered magnetic material and a coil conductor embedded in the element assembly. The sintered magnetic material is composed of a primary component containing Fe, Zn, Ni, and Cu and a secondary component containing Co. In the primary component, on a percent by mole basis, the Fe content is 46.79 to 47.69, the Zn content is 12.60 to 24.84, and the Ni content is 19.21 to 32.36 in terms of Fe2O3, ZnO, and NiO, respectively. The molar ratio (Ni:Zn) of Ni to Zn is (1?X):X, where X is from about 0.28 to about 0.56. The content of Co in terms of Co3O4 is 1.0 to 10.0 parts by mass relative to 100 parts by mass of the primary component containing Fe, Zn, Ni, and Cu in terms of Fe2O3, ZnO, NiO, and CuO, respectively.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: September 11, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kazuya Koizumi, Kazutoshi Sugii
  • Publication number: 20180197664
    Abstract: A frequency-dependent resistance element includes an element assembly composed of a sintered magnetic material and a coil conductor embedded in the element assembly. The sintered magnetic material is composed of a primary component containing Fe, Zn, Ni, and Cu and a secondary component containing Co. In the primary component, on a percent by mole basis, the Fe content is 46.79 to 47.69, the Zn content is 12.60 to 24.84, and the Ni content is 19.21 to 32.36 in terms of Fe2O3, ZnO, and NiO, respectively. The molar ratio (Ni:Zn) of Ni to Zn is (1?X):X, where X is from about 0.28 to about 0.56. The content of Co in terms of Co3O4 is 1.0 to 10.0 parts by mass relative to 100 parts by mass of the primary component containing Fe, Zn, Ni, and Cu in terms of Fe2O3, ZnO, NiO, and CuO, respectively.
    Type: Application
    Filed: December 14, 2017
    Publication date: July 12, 2018
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Kazuya KOIZUMI, Kazutoshi SUGII