Patents by Inventor Ryuichiro Tominaga

Ryuichiro Tominaga 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: 11942255
    Abstract: An inductor component includes an element body including a magnetic layer containing a resin and a magnetic powder; a coil wiring line arranged inside the element body; and an insulating coating film covering the coil wiring line and not including a magnetic material. In a cross section perpendicular to an extension direction of the coil wiring line, a top surface thickness of a part of the insulating coating film covering the top surface of the coil wiring line and a side surface thickness of parts of the insulating coating film covering side surfaces of the coil wiring line are less than or equal to 10 ?m, and a corner thickness of parts of the insulating coating film that cover corners of the coil wiring line interposed between the top surface and the side surfaces is at least half of the top surface thickness and/or the side surface thickness.
    Type: Grant
    Filed: August 25, 2020
    Date of Patent: March 26, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Ryuichiro Tominaga, Koichi Yamaguchi, Akinori Hamada, Isamu Miyake, Shinya Hirai
  • Publication number: 20240079188
    Abstract: An electronic component includes a capacitor element, an inductor element connected electrically to the capacitor element, and an interlayer-insulation layer between the capacitor and inductor elements. The interlayer-insulation layer has a first principal surface, a second principal surface, and a via hole through the interlayer-insulation layer between the first and second principal surfaces. The capacitor element is at a side of the second principal surface of the interlayer-insulation layer and includes a first electrode layer, a second electrode layer, and a dielectric layer interposed between the first electrode layer and the second electrode layer. The inductor element is at a side of the first principal surface of the interlayer-insulation layer and includes an inductor wire that has an inductor portion disposed on the first principal surface and also has a via portion through the via hole to connect the inductor portion to the second electrode layer.
    Type: Application
    Filed: July 5, 2023
    Publication date: March 7, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Ryuichiro TOMINAGA, Takashi KOMIYAMA, Keisuke KUNIMORI, Yoshimasa YOSHIOKA
  • Publication number: 20240013970
    Abstract: An electronic component capable of improving connection reliability between a via conductor and a circuit pattern. An electronic component includes a circuit pattern; an insulating resin layer covering the circuit pattern; a via conductor provided inside the insulating resin layer and connected to the circuit pattern; and a wiring member connected to the circuit pattern via the via conductor. The via conductor and the wiring member are integrally formed, and in the via conductor, a diameter of an end portion on a side close to the circuit pattern is larger than a diameter of an end portion on a side close to the wiring member.
    Type: Application
    Filed: June 30, 2023
    Publication date: January 11, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Ryuichiro TOMINAGA, Keisuke KUNIMORI, Yuuki KAWAKAMI, Yoshimasa YOSHIOKA
  • Publication number: 20230411067
    Abstract: In an electronic component including a circuit pattern embedded in an insulating layer, connection reliability between the circuit pattern and a wiring conductor outside the insulating layer is improved. An electronic component includes an insulating layer; a circuit pattern embedded in the insulating layer; a wiring conductor formed outside the insulating layer; and an interlayer connection portion that connects a circuit connection portion, which is a part of the circuit pattern, and the wiring conductor with an opening of the insulating layer interposed therebetween. In the circuit pattern, a thickness of a portion immediately below the interlayer connection portion of the circuit connection portion is larger than an average thickness of a portion other than the circuit connection portion.
    Type: Application
    Filed: June 12, 2023
    Publication date: December 21, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yuuki KAWAKAMI, Ryuichiro TOMINAGA, Keisuke KUNIMORI, Yoshimasa YOSHIOKA
  • Publication number: 20230395309
    Abstract: An electronic component includes a semiconductor substrate having a main surface and containing a semiconductor material, and a coil provided on the main surface and composed of a conductive material. The semiconductor substrate includes a low-resistance portion having a lower electrical resistance than a semiconductor composed of the semiconductor material. The coil is electrically connected to the low-resistance portion. An axial direction of the coil is parallel to the main surface.
    Type: Application
    Filed: June 1, 2023
    Publication date: December 7, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimasa YOSHIOKA, Ryuichiro TOMINAGA, Takaaki MIZUNO, Toshiyuki NAKAISO
  • Publication number: 20230352230
    Abstract: A coil component includes an insulating layer that has a main surface; and a circuit pattern that is embedded in the insulating layer and extends along the main surface. The circuit pattern includes a seed pattern that extends along the main surface within the circuit pattern, and in a cross section orthogonal to an extending direction of the circuit pattern, the circuit pattern has a part in which the number of seed patterns is two or more.
    Type: Application
    Filed: April 26, 2023
    Publication date: November 2, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yuuki KAWAKAMI, Ryuichiro TOMINAGA, Keisuke KUNIMORI, Yoshimasa YOSHIOKA
  • Patent number: 11742127
    Abstract: An inductor component includes a base body, a first coil line and a second coil line, a first substantially columnar line and a second substantially columnar line, and a third substantially columnar line and a fourth substantially columnar line. The first substantially columnar line is located closer to the third substantially columnar line than the fourth substantially columnar line. A minimum distance X1 between the first substantially columnar line and the third substantially columnar line is shorter than a minimum distance Y between a first portion of the first coil line and a second portion of the second coil line.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: August 29, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Isamu Miyake, Shinya Hirai, Akinori Hamada, Ryuichiro Tominaga, Koichi Yamaguchi
  • Publication number: 20230187122
    Abstract: An inductor component includes an element body, a coil in the element body, and a non-magnetic insulation layer covering at least part of the coil. The element body includes first and second magnetic layers laminated in order in a first direction. The coil includes a small-turn inductor wiring of 0.5 or less turns extending along a plane orthogonal to the first direction between the first and second magnetic layers. In a first cross-section orthogonal to an extending direction of the small-turn inductor wiring, the small-turn inductor wiring has a top surface facing in the first direction, a bottom surface facing in a second direction opposite from the first direction, a first side surface facing in a third direction orthogonal to the first direction, and a second side surface facing in a fourth direction opposite from the third direction.
    Type: Application
    Filed: December 13, 2022
    Publication date: June 15, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimasa YOSHIOKA, Ryuichiro TOMINAGA, Yayoi HISADA
  • Patent number: 11631526
    Abstract: An inductor component that includes an element body; a coil wiring line that is arranged parallel to a first main surface of the element body inside the element body; and a first vertical wiring line and a second vertical wiring line that are buried inside the element body so that end surfaces thereof are exposed from the first main surface of the element body and that are electrically connected to the coil wiring line. In a first cross section that is perpendicular to a direction in which the coil wiring line extends and intersects the first vertical wiring line, a top surface of the coil wiring line contacts a bottom surface of the first vertical wiring line and the top surface of the coil wiring line is substantially shaped like a convex surface.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: April 18, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Ryuichiro Tominaga, Yoshimasa Yoshioka
  • Publication number: 20220392693
    Abstract: An inductor component comprising a base body; a coil on the base body and wound helically along an axis; and first and second external electrodes disposed on the base body and connected electrically to the coil. The base body includes a substrate having first and second main surfaces that face each other; and an insulating layer on the first main surface. The coil includes first and second coil wires respectively disposed on the first and second main surfaces and covered with the insulating layer; and first and second through wires extending through the substrate from the first main surface to the second main surface and opposite to each other with respect to the axis. The first coil wire, the first through wire, the second coil wire, and the second through wire are connected in the mentioned order, to make up at least a part of the helical.
    Type: Application
    Filed: May 25, 2022
    Publication date: December 8, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimasa YOSHIOKA, Ryuichiro TOMINAGA, Hiroki IMAEDA
  • Publication number: 20220319764
    Abstract: An inductor conductor is configured such that, with respect to a height-wise dimension of the inductor conductor between the top surface and the bottom surface thereof, the height-wise dimension of a central portion of the top surface is smaller than the height-wise dimension of an edge portion of the top surface at a cross section of the inductor conductor taken in a direction orthogonal to an extending direction of the inductor conductor.
    Type: Application
    Filed: March 15, 2022
    Publication date: October 6, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Keisuke KUNIMORI, Yuuki KAWAKAMI, Ryuichiro TOMINAGA, Yoshimasa YOSHIOKA
  • Publication number: 20220310311
    Abstract: A coil component includes a main body made of a magnetic material, a linear inductor wiring conductor arranged in the main body, an electrically insulating pedestal having a top surface extending along the inductor wiring conductor in the main body and a pair of side surfaces each extending from both outer edges of the top surface in a direction intersecting the top surface, and a conductive seed layer provided over an entire region of at least a region sandwiched between the top surface of the pedestal and the inductor wiring conductor. When a width dimension of a surface of the inductor wiring conductor in contact with the seed layer is defined as a first width dimension and a width dimension of the seed layer is defined as a second width dimension, the second width dimension is larger than the first width dimension.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 29, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Ryuichiro TOMINAGA, Keisuke KUNIMORI, Yuuki KAWAKAMI, Yoshimasa YOSHIOKA
  • Publication number: 20220310293
    Abstract: A coil component includes a main body having a main surface, an inductor wiring conductor arranged in the main body, and an extended conductor arranged in the main body so as to extend toward the main surface and electrically connected to the inductor wiring conductor. The extended conductor includes an end surface exposed on the main surface of the main body and an extending portion integrally formed with the end surface and arranged so as to extend along and on the main surface.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 29, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yuuki KAWAKAMI, Yoshimasa YOSHIOKA, Ryuichiro TOMINAGA, Keisuke KUNIMORI
  • Publication number: 20220277878
    Abstract: An inductor component comprising a spiral wiring wound on a plane; first and second magnetic layers located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane of the wound spiral wiring; a vertical wiring extending from the spiral wiring in the normal direction to penetrate at least the inside of the first magnetic layer; and an external terminal disposed on at least a surface of the first magnetic layer to cover an end surface of the vertical wiring. The first magnetic layer is larger than the second magnetic layer in terms of the area of the external terminal viewed in the normal direction, and when A is the thickness of the first magnetic layer and B is the thickness of the second magnetic layer, A/((A+B)/2) is from 0.6 to 1.6.
    Type: Application
    Filed: May 18, 2022
    Publication date: September 1, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimasa YOSHIOKA, Ryuichiro TOMINAGA, Akinori HAMADA
  • Patent number: 11367552
    Abstract: An inductor component comprising a spiral wiring wound on a plane; first and second magnetic layers located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane of the wound spiral wiring; a vertical wiring extending from the spiral wiring in the normal direction to penetrate at least the inside of the first magnetic layer; and an external terminal disposed on at least a surface of the first magnetic layer to cover an end surface of the vertical wiring. The first magnetic layer is larger than the second magnetic layer in terms of the area of the external terminal viewed in the normal direction, and when A is the thickness of the first magnetic layer and B is the thickness of the second magnetic layer, A/((A+B)/2) is from 0.6 to 1.6.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: June 21, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimasa Yoshioka, Ryuichiro Tominaga, Akinori Hamada
  • Publication number: 20220068546
    Abstract: An inductor component includes a base body having a main surface, an inductor wiring extending in parallel to the main surface in the base body, a first vertical wiring, connected to a first end of the inductor wiring, that is exposed through the main surface, and a second vertical wiring, connected to a second end of the inductor wiring, that is exposed through the main surface. The base body has an upper magnetic layer disposed closer to the main surface than the inductor wiring. The first vertical wiring and the second vertical wiring have columnar shapes extending in a thickness direction while penetrating the upper magnetic layer. The dimension in the thickness direction of the penetration portion, which penetrates the upper magnetic layer, of the first vertical wiring is five times or more the maximum dimension in the thickness direction of the inductor wiring.
    Type: Application
    Filed: August 11, 2021
    Publication date: March 3, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimasa YOSHIOKA, Ryuichiro TOMINAGA, Keisuke KUNIMORI, Yuuki KAWAKAMI
  • Publication number: 20210090781
    Abstract: An inductor component includes an element body including a magnetic layer containing a resin and a magnetic powder; a coil wiring line arranged inside the element body; and an insulating coating film covering the coil wiring line and not including a magnetic material. In a cross section perpendicular to an extension direction of the coil wiring line, a top surface thickness of a part of the insulating coating film covering the top surface of the coil wiring line and a side surface thickness of parts of the insulating coating film covering side surfaces of the coil wiring line are less than or equal to 10 ?m, and a corner thickness of parts of the insulating coating film that cover corners of the coil wiring line interposed between the top surface and the side surfaces is at least half of the top surface thickness and/or the side surface thickness.
    Type: Application
    Filed: August 25, 2020
    Publication date: March 25, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Ryuichiro TOMINAGA, Koichi YAMAGUCHI, Akinori HAMADA, Isamu MIYAKE, Shinya HIRAI
  • Patent number: 10952326
    Abstract: A printed wiring board comprises a sheet-shaped core base material containing a magnetic material, a coil disposed inside the core base material, and an external circuit layer disposed on at least one of first and second surfaces of the core base material opposite to each other.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: March 16, 2021
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Akinori Hamada, Yoshimasa Yoshioka, Yoshinori Taguchi, Ryuichiro Tominaga
  • Publication number: 20210074467
    Abstract: An inductor component that includes an element body; a coil wiring line that is arranged parallel to a first main surface of the element body inside the element body; and a first vertical wiring line and a second vertical wiring line that are buried inside the element body so that end surfaces thereof are exposed from the first main surface of the element body and that are electrically connected to the coil wiring line. In a first cross section that is perpendicular to a direction in which the coil wiring line extends and intersects the first vertical wiring line, a top surface of the coil wiring line contacts a bottom surface of the first vertical wiring line and the top surface of the coil wiring line is substantially shaped like a convex surface.
    Type: Application
    Filed: July 15, 2020
    Publication date: March 11, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Ryuichiro TOMINAGA, Yoshimasa YOSHIOKA
  • Publication number: 20210065950
    Abstract: An inductor component includes a base body, a first coil line and a second coil line, a first substantially columnar line and a second substantially columnar line, and a third substantially columnar line and a fourth substantially columnar line. The first substantially columnar line is located closer to the third substantially columnar line than the fourth substantially columnar line. A minimum distance X1 between the first substantially columnar line and the third substantially columnar line is shorter than a minimum distance Y between a first portion of the first coil line and a second portion of the second coil line.
    Type: Application
    Filed: July 30, 2020
    Publication date: March 4, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Isamu MIYAKE, Shinya HIRAI, Akinori HAMADA, Ryuichiro TOMINAGA, Koichi YAMAGUCHI