Patents by Inventor Yasuhiro ITANI

Yasuhiro ITANI 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: 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: 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: 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
  • Publication number: 20220367113
    Abstract: A coil component manufacturing apparatus for winding a twisted portion of wires at a desired position of a core. A coil component manufacturing apparatus including a nozzle through which a plurality of wires can be inserted, a wire twisting mechanism that holds a core, rotates the core relative to the nozzle in a direction of twisting the wires, and forms a twisted portion in which the wires are twisted between the nozzle and the core, a wire winding mechanism that holds the core, rotates the core relative to the nozzle in a direction of winding the twisted portion is wound around the core, and winds the twisted portion around the core, and a guide member positioned closer to the core than the nozzle. The guide member guides the twisted portion to a predetermined position of the core when the twisted portion is wound around the core.
    Type: Application
    Filed: May 16, 2022
    Publication date: November 17, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yasuhiro ITANI, Ryo NARAHARA, Seiji KARIMORI
  • 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: 11217388
    Abstract: A multilayer inductor manufacturing method includes stacking a first coil conductor layer on a first magnetic layer; stacking a first burn-away material on side surfaces of the first coil conductor layer; stacking a second magnetic layer on the first burn-away material and first magnetic layer; stacking a second burn-away material on the second magnetic layer laterally outside an upper surface of the first coil conductor layer; stacking a second coil conductor layer on the upper surface of the first coil conductor layer and second burn-away material; stacking a third burn-away material on side surfaces and an upper surface of the second coil conductor layer; stacking a third magnetic layer on side surfaces of the third burn-away material and the second magnetic layer; stacking a fourth magnetic layer on the third burn-away material and the third magnetic layer; and burning away the first, second, and third burn-away materials via firing.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: January 4, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yasuhiro Itani, Hiroki Hashimoto, Masayuki Oishi
  • Patent number: 11145453
    Abstract: A coil component includes an element and a coil that is provided inside the element and that is spirally wound. The coil includes a plurality of coil conductor layers and an extended conductor layer, which are laminated in a first direction. The extended conductor layer overlaps a side gap portion, which is situated on an outer side of a region of the element that is surrounded by the coil conductor layers, and extends so as to reach an outer surface of the element. The element includes a first stress relaxation layer that contacts the coil conductor layers, and a second stress relaxation layer that, while extending along the extended conductor layer, contacts a coil-conductor-layer side of the extended conductor layer, and is positioned inside the side gap portion without reaching the outer surface of the element.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: October 12, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masayuki Oishi, Yasuhiro Itani, Hiroki Hashimoto, Takuma Shiro
  • Publication number: 20200335266
    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: April 16, 2020
    Publication date: October 22, 2020
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshifumi MAKI, Reiichi MATSUBA, Takashi SUKEGAWA, Yasuhiro ITANI, Takanori SUZUKI, Yuuki KITADAI
  • Publication number: 20200335261
    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: April 14, 2020
    Publication date: October 22, 2020
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takashi SUKEGAWA, Yasuhiro ITANI, Takanori SUZUKI, Yuuki KITADAI, Yoshifumi MAKI, Reiichi MATSUBA
  • 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
  • Publication number: 20200335248
    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: April 16, 2020
    Publication date: October 22, 2020
    Inventors: Yasuhiro ITANI, Takashi SUKEGAWA, Takanori SUZUKI, Yuuki KITADAI, Yoshifumi MAKI, Reiichi MATSUBA
  • Publication number: 20200335249
    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: April 16, 2020
    Publication date: October 22, 2020
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Takashi SUKEGAWA, Yasuhiro ITANI, Takanori SUZUKI, Yuuki KITADAI, Yoshifumi MAKI, Reiichi MATSUBA
  • Publication number: 20200211751
    Abstract: A coil component includes a drum-shaped core including a core part having a circumferential surface including a first side surface and a second side surface parallel to each other; and a coil including two wires wound around the core part in the same direction. The coil has a first twisted wire part having the two wires twisted together on the first side surface, and a second twisted wire part having the two wires twisted together on the second side surface. The first twisted wire part and the second twisted wire part are identical in shape.
    Type: Application
    Filed: December 12, 2019
    Publication date: July 2, 2020
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yasuhiro ITANI, Seiji KARIMORI, Katsuyuki TAKAHASHI, Masashi MIYAMOTO
  • Publication number: 20190172627
    Abstract: A coil component includes an element and a coil that is provided inside the element and that is spirally wound. The coil includes a plurality of coil conductor layers and an extended conductor layer, which are laminated in a first direction. The extended conductor layer overlaps a side gap portion, which is situated on an outer side of a region of the element that is surrounded by the coil conductor layers, and extends so as to reach an outer surface of the element. The element includes a first stress relaxation layer that contacts the coil conductor layers, and a second stress relaxation layer that, while extending along the extended conductor layer, contacts a coil-conductor-layer side of the extended conductor layer, and is positioned inside the side gap portion without reaching the outer surface of the element.
    Type: Application
    Filed: October 30, 2018
    Publication date: June 6, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Masayuki OISHI, Yasuhiro ITANI, Hiroki HASHIMOTO, Takuma SHIRO
  • Publication number: 20180374636
    Abstract: A multilayer inductor manufacturing method includes stacking a first coil conductor layer on a first magnetic layer; stacking a first burn-away material on side surfaces of the first coil conductor layer; stacking a second magnetic layer on the first burn-away material and first magnetic layer; stacking a second burn-away material on the second magnetic layer laterally outside an upper surface of the first coil conductor layer; stacking a second coil conductor layer on the upper surface of the first coil conductor layer and second burn-away material; stacking a third burn-away material on side surfaces and an upper surface of the second coil conductor layer; stacking a third magnetic layer on side surfaces of the third burn-away material and the second magnetic layer; stacking a fourth magnetic layer on the third burn-away material and the third magnetic layer; and burning away the first, second, and third burn-away materials via firing.
    Type: Application
    Filed: June 12, 2018
    Publication date: December 27, 2018
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yasuhiro ITANI, Hiroki HASHIMOTO, Masayuki OISHI