Patents by Inventor Keisuke Kunimori

Keisuke Kunimori 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: 12020845
    Abstract: An inductor component includes a main body, a first inductor wiring located inside the main body and extending on a virtual plane, and a second inductor wiring located inside the main body and extending in parallel to the virtual plane. The inductor component includes a third inductor wiring located between the first inductor wiring and the second inductor wiring inside the main body and extending in parallel to the virtual plane. The inductor component includes vertical wirings passing through the inside of the main body from each of the first to third inductor wirings to a surface of the main body in a direction perpendicular to the virtual plane. The third inductor wiring is a low-resistance inductor wiring having a DC electrical resistance smaller than those of the first inductor wiring and the second inductor wiring.
    Type: Grant
    Filed: September 29, 2020
    Date of Patent: June 25, 2024
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kouji Yamauchi, Yoshimasa Yoshioka, Keisuke Kunimori
  • Publication number: 20240153695
    Abstract: An inductor component capable of reducing an electrical resistance of an inductor wire includes an element body; an inductor wire that is provided in the element body and wound on a plane; and an insulation wall that is provided on both side surfaces of the inductor wire in a direction orthogonal to an extension direction of the inductor wire and parallel to the plane. The insulation wall including a first portion provided on an inner peripheral surface of an innermost periphery of the inductor wire and a second portion provided on an outer peripheral surface of an outermost periphery of the inductor wire. Also, in a section orthogonal to the extension direction of the inductor wire, at least one of the first portion and the second portion being inclined with respect to a first direction orthogonal to the plane.
    Type: Application
    Filed: November 7, 2023
    Publication date: May 9, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Keisuke KUNIMORI
  • Publication number: 20240145150
    Abstract: An inductor component includes an element body. The element body includes an inductor wire extending parallel to a first principal surface of the element body, a plurality of columnar wires extending in a direction intersecting the first principal surface, and a plurality of outer electrodes exposed from the first principal surface. When viewed transparently in a direction orthogonal to the first principal surface, a first vector extending from a geometric center of at least one selected from a plurality of first-end columnar wires toward a geometric center of a first outer electrode connected to the first columnar wire is different from a second vector extending from a geometric center of at least one selected from a plurality of second-end columnar wires toward a geometric center of a second outer electrode connected to the second columnar wire.
    Type: Application
    Filed: October 6, 2023
    Publication date: May 2, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Kenji TOYOSHIMA, Yoshimasa YOSHIOKA, Keisuke KUNIMORI
  • Publication number: 20240128015
    Abstract: An inductor component includes a base body, first and second inner wiring line inside the base body, an inter-layer insulation layer, and a via-wiring line. The inter-layer insulation layer is inside the base body, and between the first and second inner wiring lines. The inter-layer insulation layer includes first and second major faces and a via-hole. The first major face faces the first inner wiring line. The second major face faces the second inner wiring line. The via-hole extends through the inter-layer insulation layer between the first and second major faces. The via-wiring line is in the via-hole, and electrically connects the first and second inner wiring lines. As seen in a first cross-section including a center axis of the via-wiring line, the via-wiring line includes a first portion in contact with the first inner wiring line, and a second portion in contact with the second inner wiring line.
    Type: Application
    Filed: October 4, 2023
    Publication date: April 18, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Keisuke KUNIMORI
  • Publication number: 20240128014
    Abstract: An inductor component includes first and second internal wiring lines, an interlayer insulating layer between the first and second internal wiring lines and having a first main surface facing the first internal wiring line, a second main surface facing the second internal wiring line, and a via extending between the first main surface and the second main surface, and a via wiring line inserted through the via that electrically connects the first and second internal wiring lines. In a first section including a central axis of the via wiring line, the first main surface includes a first portion in contact with the first internal wiring line. The second main surface includes a second portion that is parallel to the first portion. A straight line that includes the first portion is a first reference line. A straight line that includes the second portion is a second reference line.
    Type: Application
    Filed: October 3, 2023
    Publication date: April 18, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Keisuke KUNIMORI
  • 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: 20240029953
    Abstract: An inductor component capable of improving an inductance value and a method for manufacturing the same. An inductor component includes a base layer having a main surface; a coil wiring formed on the main surface of the base layer; an insulating layer covering the coil wiring; and a magnetic layer covering the insulating layer. A shape of the insulating layer in a section perpendicular to the main surface of the base layer is a trapezoidal shape in which a width of a first end surface on a side opposite to the base layer is narrower than a width of a second end surface on the base layer side, and the width of the first end surface is narrower than a width of a formation area of the coil wiring in a direction parallel to the main surface of the base layer.
    Type: Application
    Filed: July 12, 2023
    Publication date: January 25, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Keisuke KUNIMORI
  • Publication number: 20240021365
    Abstract: An electronic component includes a second insulating layer laminated on a main surface of a first insulating layer in which a circuit pattern is embedded, so that stacking misalignment or step-off of a wiring layer is prevented without impairing electrical characteristics. An electronic component includes a first insulating layer having a main surface; a circuit pattern embedded in the first insulating layer and extending along a plane parallel to the main surface; and a second insulating layer laminated on the main surface. A section of the first insulating layer orthogonal to the main surface is an inverted trapezoid in which a length of a lower side opposite to the main surface is shorter than a length of an upper side on the main surface side.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 18, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Keisuke KUNIMORI
  • Publication number: 20240021364
    Abstract: An electronic component capable of increasing a ratio of a conductor to a thickness in an interlayer direction. An electronic component includes a first circuit pattern and a second circuit pattern stacked in this order from a lower side to an upper side in an interlayer direction; and an insulator disposed between the first circuit pattern and the second circuit pattern. In the second circuit pattern, an end portion on the lower side in the interlayer direction has a shape in which a width, which is a dimension perpendicular to the interlayer direction, narrows as the width is positioned on the lower side in the interlayer direction in sectional view of a section including the interlayer direction.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 18, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Keisuke KUNIMORI
  • Publication number: 20240021363
    Abstract: An inductor component includes a base body, an underlying insulation layer, an inductor wiring line, and a covering insulation layer. The underlying insulation layer is within the base body, and includes a first major face. The inductor wiring line is on the first major face within the base body, and extends along the first major face. The covering insulation layer is within the base body, and covers at least part of the inductor wiring line. The inductor wiring line includes a seed layer, and a plating layer in contact with the seed layer. As seen in a first cross-section orthogonal to a direction in which the inductor wiring line extends: the inductor wiring line includes first and second leg portions and a crotch portion. The first and second leg portions are in opposite end portions of a lower face of the inductor wiring line in a width direction.
    Type: Application
    Filed: July 5, 2023
    Publication date: January 18, 2024
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Tomomi HIGASHIYAMA, Keisuke KUNIMORI, Yuuki KAWAKAMI
  • 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: 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
  • Publication number: 20230260696
    Abstract: An inductor component comprising a spiral wiring wound on a plane; a first magnetic layer and a second magnetic layer located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane on which the spiral wiring is wound; a vertical wiring extending from the spiral wiring in the normal direction to pass through the first magnetic layer; and an external terminal disposed on a surface of the first magnetic layer to connect an end surface of the vertical wiring. The first magnetic layer has magnetic permeability lower than that of the second magnetic layer.
    Type: Application
    Filed: April 28, 2023
    Publication date: August 17, 2023
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimasa YOSHIOKA, Keisuke KUNIMORI, Akinori HAMADA
  • Patent number: 11676761
    Abstract: An inductor component comprising a spiral wiring wound on a plane; a first magnetic layer and a second magnetic layer located at positions sandwiching the spiral wiring from both sides in a normal direction relative to the plane on which the spiral wiring is wound; a vertical wiring extending from the spiral wiring in the normal direction to pass through the first magnetic layer; and an external terminal disposed on a surface of the first magnetic layer to connect an end surface of the vertical wiring. The first magnetic layer has magnetic permeability lower than that of the second magnetic layer.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: June 13, 2023
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoshimasa Yoshioka, Keisuke Kunimori, Akinori Hamada
  • 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: 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: 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: 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: 20210104353
    Abstract: An inductor component includes a main body, a first inductor wiring located inside the main body and extending on a virtual plane, and a second inductor wiring located inside the main body and extending in parallel to the virtual plane. The inductor component includes a third inductor wiring located between the first inductor wiring and the second inductor wiring inside the main body and extending in parallel to the virtual plane. The inductor component includes vertical wirings passing through the inside of the main body from each of the first to third inductor wirings to a surface of the main body in a direction perpendicular to the virtual plane. The third inductor wiring is a low-resistance inductor wiring having a DC electrical resistance smaller than those of the first inductor wiring and the second inductor wiring.
    Type: Application
    Filed: September 29, 2020
    Publication date: April 8, 2021
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Kouji YAMAUCHI, Yoshimasa YOSHIOKA, Keisuke KUNIMORI