Patents by Inventor Yuuki KITADAI

Yuuki KITADAI 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: 20240112844
    Abstract: A coil component includes a core including a winding core portion and a first flange portion that is disposed on a first end portion of the winding core portion in a direction in which the winding core portion extends. A first curved portion is formed at a connection between a bottom surface of the winding core portion and the first flange portion. A ratio of a length of the first curved portion in a height direction to a distance in the height direction between the bottom surface and a first terminal electrode is no less than 20% and no more than 60% (i.e., from 20% to 60%).
    Type: Application
    Filed: December 5, 2023
    Publication date: April 4, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takashi SUKEGAWA, Yasuhiro ITANI, Takanori SUZUKI, Yuuki KITADAI, Yoshifumi MAKI, Reiichi MATSUBA
  • Publication number: 20240079173
    Abstract: A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion. The winding portion includes a second intersecting portion along a third side surface of the winding core portion at a position on the winding portion nearest to the second flange portion.
    Type: Application
    Filed: November 2, 2023
    Publication date: March 7, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yasuhiro ITANI, Takashi SUKEGAWA, Takanori SUZUKI, Yuuki KITADAI, Yoshifumi MAKI, Reiichi MATSUBA
  • Publication number: 20240079178
    Abstract: A coil component includes a core including a winding core portion and a first flange portion, a first wire and a second wire that are wound around the winding core portion in the same direction, and a first terminal electrode that is disposed on the first flange portion and that is connected to a first end portion of the first wire. The shape of an outer edge of the first terminal electrode includes a convex curve.
    Type: Application
    Filed: November 8, 2023
    Publication date: March 7, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshifumi MAKI, Reiichi MATSUBA, Takashi SUKEGAWA, Yasuhiro ITANI, Takanori SUZUKI, Yuuki KITADAI
  • Publication number: 20240038426
    Abstract: The ceramic composition contains Fe, Cu, Zn, Ni, Mn, Nb, and V. When the amounts of Fe, Cu, Zn, and Ni are respectively expressed in terms of Fe2O3, CuO, ZnO, and NiO, and a total amount of Fe2O3, CuO, ZnO, and NiO is 100 mol %, the ceramic composition contains from 46.70 mol % to 49.70 mol % of Fe in terms of Fe2O3, from 4.00 mol % to 7.50 mol % of Cu in terms of CuO, and from 7.00 mol % to 33.50 mol % of Zn in terms of ZnO, with the balance being Ni, and contains from 300 ppm to 10,000 ppm of Mn in terms of Mn2O3, from 2 ppm to 30 ppm of Nb in terms of Nb2O5, and from 10 ppm to 60 ppm of V in terms of V2O5 with respect to 100 parts by weight of the total amount of Fe2O3, CuO, ZnO, and NiO.
    Type: Application
    Filed: June 2, 2023
    Publication date: February 1, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Atsushi SHIMAMURA, Yuuki KITADAI, Takanori SUZUKI
  • Patent number: 11875927
    Abstract: A coil component includes a core including a winding core portion and a first flange portion that is disposed on a first end portion of the winding core portion in a direction in which the winding core portion extends. A first curved portion is formed at a connection between a bottom surface of the winding core portion and the first flange portion. A ratio of a length of the first curved portion in a height direction to a distance in the height direction between the bottom surface and a first terminal electrode is no less than 20% and no more than 60% (i.e., from 20% to 60%).
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: January 16, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takashi Sukegawa, Yasuhiro Itani, Takanori Suzuki, Yuuki Kitadai, Yoshifumi Maki, Reiichi Matsuba
  • Patent number: 11848147
    Abstract: A coil component includes a core including a winding core portion and a first flange portion, a first wire and a second wire that are wound around the winding core portion in the same direction, and a first terminal electrode that is disposed on the first flange portion and that is connected to a first end portion of the first wire. The shape of an outer edge of the first terminal electrode includes a convex curve.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: December 19, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshifumi Maki, Reiichi Matsuba, Takashi Sukegawa, Yasuhiro Itani, Takanori Suzuki, Yuuki Kitadai
  • Patent number: 11848135
    Abstract: A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion. The winding portion includes a second intersecting portion along a third side surface of the winding core portion at a position on the winding portion nearest to the second flange portion.
    Type: Grant
    Filed: September 26, 2022
    Date of Patent: December 19, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yasuhiro Itani, Takashi Sukegawa, Takanori Suzuki, Yuuki Kitadai, Yoshifumi Maki, Reiichi Matsuba
  • Publication number: 20230360843
    Abstract: An electronic component includes a ceramic base containing a Cu element, an outer electrode partially covering a surface of the base, and a Cu segregate containing a Cu element. The outer electrode has an underlying electrode layer on the base, the underlying electrode layer has a conductor portion containing a conductor and a glass portion containing glass, and the Cu segregate is in contact with the base and the glass portion at an interface between the base and the glass portion.
    Type: Application
    Filed: July 20, 2023
    Publication date: November 9, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yuuta HOSHINO, Yuuki KITADAI
  • Publication number: 20230282408
    Abstract: A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a plate member that is mounted on the first flange portion and the second flange portion. A distance in a height direction between the plate member and the first flange portion, or a distance in the height direction between the plate member and the second flange portion, or both vary in a length direction, or in a width direction, or both.
    Type: Application
    Filed: May 1, 2023
    Publication date: September 7, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takashi SUKEGAWA, Yasuhiro ITANI, Takanori SUZUKI, Yuuki KITADAI, Yoshifumi MAKI, Reiichi MATSUBA
  • Patent number: 11676754
    Abstract: A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a plate member that is mounted on the first flange portion and the second flange portion. A distance in a height direction between the plate member and the first flange portion, or a distance in the height direction between the plate member and the second flange portion, or both vary in a length direction, or in a width direction, or both.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: June 13, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takashi Sukegawa, Yasuhiro Itani, Takanori Suzuki, Yuuki Kitadai, Yoshifumi Maki, Reiichi Matsuba
  • Publication number: 20230093641
    Abstract: A ceramic composition contains Fe, Cu, Ni, Zn, Co, and Cr. When Fe, Cu, Ni, and Zn are converted to Fe2O3, CuO, NiO, and ZnO, respectively, and when a total amount of Fe2O3, CuO, NiO, and ZnO is 100 parts by mole, the ceramic composition contains 45.00 to 49.70 parts by mole Fe in terms of Fe2O3, 2.00 to 8.00 parts by mole Cu in terms of CuO, 19.40 to 45.40 parts by mole Ni in terms of NiO, and 1.00 to 27.00 parts by mole Zn in terms of ZnO. When Fe, Cu, Ni, and Zn are converted to Fe2O3, CuO, NiO, and ZnO, respectively, and when a total amount of Fe2O3, CuO, NiO, and ZnO is 100 parts by weight, the ceramic composition contains 5 to 100 ppm Co in terms of CoO and 10 to 400 ppm Cr in terms of Cr2O3.
    Type: Application
    Filed: August 31, 2022
    Publication date: March 23, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Atsushi SHIMAMURA, Yuuki Kitadai, Takanori Suzuki
  • Publication number: 20230090818
    Abstract: A ceramic composition contains Fe, Cu, Ni, Zn, Co, and Cr. When Fe, Cu, Ni, and Zn are converted to Fe2O3, CuO, NiO, and ZnO, respectively, and a total amount of Fe2O3, CuO, NiO, and ZnO is 100 parts by mole, the ceramic composition contains from 48.20 to 49.85 parts by mole Fe in terms of Fe2O3, from 2.00 parts to 8.00 parts by mole Cu in terms of CuO, from 11.90 to 18.70 parts by mole Ni in terms of NiO, and from 27.00 to 33.50 parts by mole Zn in terms of ZnO. When Fe, Cu, Ni, and Zn are converted to Fe2O3, CuO, NiO, and ZnO, respectively, and a total amount of Fe2O3, CuO, NiO, and ZnO is 100 parts by weight, the ceramic composition contains from 5 to 100 ppm Co in terms of CoO and from 10 to 400 ppm in terms of Cr2O3.
    Type: Application
    Filed: August 31, 2022
    Publication date: March 23, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Atsushi SHIMAMURA, Yuuki KITADAI, Takanori SUZUKI
  • Publication number: 20230012992
    Abstract: A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion. The winding portion includes a second intersecting portion along a third side surface of the winding core portion at a position on the winding portion nearest to the second flange portion.
    Type: Application
    Filed: September 26, 2022
    Publication date: January 19, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yasuhiro ITANI, Takashi SUKEGAWA, Takanori SUZUKI, Yuuki KITADAI, Yoshifumi MAKI, Reiichi MATSUBA
  • Patent number: 11495385
    Abstract: A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, and a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion. The winding portion includes a second intersecting portion along a third side surface of the winding core portion at a position on the winding portion nearest to the second flange portion.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: November 8, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yasuhiro Itani, Takashi Sukegawa, Takanori Suzuki, Yuuki Kitadai, Yoshifumi Maki, Reiichi Matsuba
  • Patent number: 11462346
    Abstract: A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion, a first terminal electrode and a second terminal electrode that are disposed on the first flange portion, and a third terminal electrode and a fourth terminal electrode that are disposed on the second flange portion. A length of the winding portion along a bottom surface of the winding core portion is shorter than a length of the winding portion along an upper surface of the winding core portion.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: October 4, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takashi Sukegawa, Yasuhiro Itani, Yoshifumi Maki, Takanori Suzuki, Yuuki Kitadai, Reiichi Matsuba
  • Patent number: 11437171
    Abstract: A magnetic material which is likely to be cracked or chipped. The magnetic material is a magnetic material including ferrite particles and segregated particles containing Bi and Si, and characteristically, the magnetic material contains, as a main constituent, 46.0 mol % to 50.0 mol % Fe2O3, 0.4 mol % to 8.0 mol % CuO, 23.0 mol % to 32.0 mol % ZnO, and 18.0 mol % to 22.0 mol % NiO, and the ratio of the average particle size of the segregated particles to the average particle size of the ferrite particles is 0.04 or more and 0.19 or less (i.e., 0.04 to 0.19).
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: September 6, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Yuuki Kitadai
  • Publication number: 20220108820
    Abstract: A ferrite sintered body contains from 45.0% by mole to 49.7% by mole Fe in terms of from Fe2O3, 2.0% by mole to 8.0% by mole Cu in terms of CuO, from 25.0% by mole to 45.0% by mole Ni in terms of NiO, and from 1.0% by mole to 20.0% by mole Zn in terms of ZnO, in which when Fe, Cu, Ni, and Zn are converted to Fe2O3, CuO, NiO, and ZnO, respectively, and when the total amount of the Fe2O3, the CuO, the NiO, and the ZnO is 100 parts by weight, the ferrite sintered body contains from 5 ppm to 25 ppm B in terms of elemental B and from 6 ppm to 25 ppm Nb in terms of elemental Nb.
    Type: Application
    Filed: September 27, 2021
    Publication date: April 7, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Yuuki KITADAI
  • Publication number: 20220108821
    Abstract: A ferrite sintered body contains from 48.2% by mole to 49.7% by mole Fe in terms of Fe2O3, from 2.0% by mole to 8.0% by mole Cu in terms of CuO, from 17.7% by mole to 24.0% by mole Ni in terms of NiO, and from 21.0% by mole to 28.0% by mole Zn in terms of ZnO, in which, when Fe, Cu, Ni, and Zn are converted to Fe2O3, CuO, NiO, and ZnO, respectively, and when the total amount of the Fe2O3, the CuO, the NiO, and the ZnO is 100 parts by weight, the ferrite sintered body contains from 5 ppm to 25 ppm B in terms of elemental B and from 6 ppm to 25 ppm Nb in terms of elemental Nb.
    Type: Application
    Filed: September 27, 2021
    Publication date: April 7, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Yuuki KITADAI
  • Publication number: 20220108819
    Abstract: A ferrite sintered body contains from 48.2% by mole to 49.7% by mole Fe in terms of Fe2O3, from 2.0% by mole to 8.0% by mole Cu in terms of CuO, from 12.0% by mole to 19.0% by mole Ni in terms of NiO, and from 28.5% by mole to 33.0% by mole Zn in terms of ZnO, in which when Fe, Cu, Ni, and Zn are converted to Fe2O3, CuO, NiO, and ZnO, respectively, and when the total amount of the Fe2O3, the CuO, the NiO, and the ZnO is 100 parts by weight, the ferrite sintered body contains from 5 ppm to 25 ppm B in terms of elemental B and 6 ppm to 25 ppm Nb in terms of elemental Nb.
    Type: Application
    Filed: September 27, 2021
    Publication date: April 7, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Yuuki KITADAI
  • Publication number: 20200335250
    Abstract: A coil component includes a core including a winding core portion, a first flange portion, and a second flange portion, a first wire and a second wire that are wound around the winding core portion in the same direction and that form a winding portion, a first terminal electrode and a second terminal electrode that are disposed on the first flange portion, and a third terminal electrode and a fourth terminal electrode that are disposed on the second flange portion. A length of the winding portion along a bottom surface of the winding core portion is shorter than a length of the winding portion along an upper surface of the winding core portion.
    Type: Application
    Filed: April 16, 2020
    Publication date: October 22, 2020
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takashi SUKEGAWA, Yasuhiro ITANI, Yoshifumi MAKI, Takanori SUZUKI, Yuuki KITADAI, Reiichi MATSUBA