Patents by Inventor Keisuke OKUMURA

Keisuke OKUMURA 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: 11948720
    Abstract: An inductor includes a wire having a generally circular shape in cross section, and the magnetic layer covering the wire, wherein the wire includes a conductive wire and an insulating layer covering the conductive wire, the magnetic layer contains anisotropic magnetic particles and a binder, and includes in a surrounding region of the wire within 1.5 times the radius of the wire, a first region in which the anisotropic magnetic particles are oriented along the circumferential direction of the wire, and a second region in which the anisotropic magnetic particles are oriented along the crossing direction that crosses the circumferential direction, or in which the anisotropic magnetic particles are not oriented.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: April 2, 2024
    Assignee: NITTO DENKO CORPORATION
    Inventors: Yoshihiro Furukawa, Keisuke Okumura
  • Publication number: 20240087794
    Abstract: An inductor including a magnetic layer, and a plurality of wires embedded in the magnetic layer and extending in a longitudinal direction. The plurality of wires are spaced in parallel at predetermined intervals in a direction perpendicular to the longitudinal direction. The magnetic layer includes a plurality of wire disposed portions in which the wires are regularly disposed in parallel to each other, and a margin portion that is disposed between the wire disposed portions adjacent to each other in a parallel direction of the wires and in which the wires are omitted.
    Type: Application
    Filed: February 3, 2022
    Publication date: March 14, 2024
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshihiro FURUKAWA, Keisuke OKUMURA
  • Publication number: 20240079291
    Abstract: A semiconductor device includes a semiconductor element having main electrodes on opposite faces opposite in a predetermined direction, a substrate, and a sealing body containing resin. The substrate has an insulating base member, a front-face metal body on a front face of the insulating base member and a back-face metal body on a back face of the insulating base member, the front-face metal body being connected to at least one of the main electrodes of the semiconductor element. The insulating base member and the sealing body satisfy a relationship of Tgs?Tgi and a relationship of ?i??s, in which Tgi is a glass transition point of the insulating base member, ?i is a linear expansion coefficient of the insulating base member, Tgs is a glass transition point of the sealing body, and as is a linear expansion coefficient of the sealing body.
    Type: Application
    Filed: November 8, 2023
    Publication date: March 7, 2024
    Inventors: KEISUKE NAKANO, TOMOMI OKUMURA
  • Publication number: 20230411061
    Abstract: A laminated sheet includes a sheet-shaped inductor including a plurality of wirings and a magnetic layer embedding the plurality of wirings, and a processing stability layer disposed on at least one surface in a thickness direction of the inductor. The magnetic layer includes a binder and a magnetic particle having a generally flat shape and whose material is a metal. The processing stability layer includes a cured product of a thermosetting resin composition. The thermosetting resin composition includes a thermosetting resin as an essential component. The thermosetting resin composition includes at least one kind of particle, as an optical component, selected from the group consisting of a first particle having a generally spherical shape and a second particle having a generally flat shape and whose material is an inorganic compound.
    Type: Application
    Filed: August 24, 2023
    Publication date: December 21, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshihiro FURUKAWA, Keisuke OKUMURA
  • Publication number: 20230402210
    Abstract: A magnetic sheet has a first principal surface and a second principal surface facing each other in the thickness direction. The magnetic sheet contains magnetic particles and resin. The ratio of the total amount of carbon and oxygen on one of the first principal surface and second principal surface is 10 mass % or more and 60 mass % or less.
    Type: Application
    Filed: November 11, 2021
    Publication date: December 14, 2023
    Applicant: NITTO DENKO CORPORATION
    Inventors: Hiroki SENDA, Keisuke OKUMURA, Yoshihiro FURUKAWA
  • Patent number: 11783983
    Abstract: A laminated sheet includes a sheet-shaped inductor including a plurality of wirings and a magnetic layer embedding the plurality of wirings, and a processing stability layer disposed on at least one surface 6 in a thickness direction of the inductor. The magnetic layer includes a binder and a magnetic particle having a generally flat shape and whose material is a metal. The processing stability layer includes a cured product of a thermosetting resin composition. The thermosetting resin composition includes a thermosetting resin as an essential component. The thermosetting resin composition includes at least one kind of particle, as an optical component, selected from the group consisting of a first particle having a generally spherical shape and a second particle having a generally flat shape and whose material is an inorganic compound.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: October 10, 2023
    Assignee: NITTO DENKO CORPORATION
    Inventors: Yoshihiro Furukawa, Keisuke Okumura
  • Patent number: 11747713
    Abstract: A camera device includes: a base member; a camera which is rotatably attached to the base member about a first rotation axis; a shutter member which is rotatably attached to the base member about a second rotation axis, the second rotation axis being different from the first rotation axis and being parallel to the first rotation axis, the shutter member being rotatable between a cover position in which the shutter member covers the camera, and an open position in which the shutter member does not cover the camera; a power transmission member which is rotatably attached to the base member about a third rotation axis, the third rotation axis being different from the first rotation axis and being parallel to the first rotation axis; and a motor configured to rotationally drive the power transmission member.
    Type: Grant
    Filed: February 25, 2022
    Date of Patent: September 5, 2023
    Assignee: YAMAHA CORPORATION
    Inventor: Keisuke Okumura
  • Patent number: 11508507
    Abstract: A magnetic wiring circuit board includes an insulating layer; a wire disposed on a one-side surface in a thickness direction of the insulating layer and having a one-side surface in the thickness direction disposed to face the one-side surface in the thickness direction of the insulting layer at spaced intervals thereto, an other-side surface in the thickness direction in contact with the one-side surface in the thickness direction of the insulating layer, and side surfaces each connecting an end edge of the one-side surface in the thickness direction to an end edge of the other-side surface in the thickness direction; and a magnetic layer containing a magnetic particle having a shape of an aspect ratio of 2 or more and embedding the wire.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: November 22, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Keisuke Okumura, Yoshihiro Furukawa
  • Publication number: 20220285072
    Abstract: An inductor includes a first wire and a second wire, a first magnetic layer containing magnetic particles having an approximately spherical shape, a second magnetic layer containing magnetic particles having an approximately flat shape, and a third magnetic layer containing magnetic particles having an approximately flat shape. The relative permeability of each of the second magnetic layer and the third magnetic layer is higher than the relative permeability of the first magnetic layer. A fourth surface of the first magnetic layer has a second concave portion. A sixth surface of the third magnetic layer has a fourth concave portion.
    Type: Application
    Filed: June 19, 2020
    Publication date: September 8, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshihiro FURUKAWA, Keisuke OKUMURA
  • Publication number: 20220285091
    Abstract: A method for producing an inductor includes a first step of preparing a heat press machine and a second step. The heat press machine includes a first mold; a second mold separated from the first mold by an interval therebetween, and smaller than the first mold; an internal frame member surrounding a periphery of the second mold, separated from the first mold by an interval therebetween in a press direction, and movable with respect to the second mold in the press direction; and a fluid and flexible sheet disposed on a second press surface of the second mold. In the second step, a magnetic sheet containing magnetic particles and a thermosetting resin and a plurality of wires separated from each other by an interval therebetween are heat pressed by the heat press machine.
    Type: Application
    Filed: June 19, 2020
    Publication date: September 8, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Keisuke OKUMURA, Yoshihiro FURUKAWA
  • Publication number: 20220285085
    Abstract: An inductor includes a first wire adjacent to a second wire and separated by an interval; a first magnetic layer having first and second surfaces separated from each other by an interval, and an inner peripheral surface in contact with an outer peripheral surface of the first and second wires between the first and second surfaces; a second magnetic layer disposed on the first surface; and a third magnetic layer disposed on the second surface. The second magnetic layer has a third surface facing and separated from the first surface by an interval in the thickness direction. The relative permeability of each of the second and third magnetic layers is higher than that of the first magnetic layer. The inductor includes a suppression portion located between the first and second wires which suppresses the magnetic coupling between the first and second wires.
    Type: Application
    Filed: June 19, 2020
    Publication date: September 8, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshihiro FURUKAWA, Keisuke OKUMURA
  • Publication number: 20220283478
    Abstract: A camera device includes: a base member; a camera which is rotatably attached to the base member about a first rotation axis; a shutter member which is rotatably attached to the base member about a second rotation axis, the second rotation axis being different from the first rotation axis and being parallel to the first rotation axis, the shutter member being rotatable between a cover position in which the shutter member covers the camera, and an open position in which the shutter member does not cover the camera; a power transmission member which is rotatably attached to the base member about a third rotation axis, the third rotation axis being different from the first rotation axis and being parallel to the first rotation axis; and a motor configured to rotationally drive the power transmission member.
    Type: Application
    Filed: February 25, 2022
    Publication date: September 8, 2022
    Inventor: Keisuke OKUMURA
  • Patent number: 11387040
    Abstract: A method for producing a module includes a first step of preparing a conductive layer disposed at one side in a thickness direction of a first peeling layer, a second step of forming a conductive pattern from the conductive layer, a third step of pushing the conductive pattern into a first adhesive layer containing a first magnetic particle and a first resin component, and a fourth step of peeling the first peeling layer.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: July 12, 2022
    Assignee: NITTO DENKO CORPORATION
    Inventors: Keisuke Okumura, Yoshihiro Furukawa
  • Publication number: 20220165472
    Abstract: An inductor 1 includes a wire 2, and a magnetic layer 3 covering the wire 2. The wire 2 includes a conducting line 6, and an insulating layer 7 covering the conducting line 6. The magnetic layer 3 includes a magnetic particle and a binder 9. In a peripheral region 4 of the wire 2, a filling rate of the magnetic particle is 40% by volume or more. The peripheral region 4 is a region of the magnetic layer 3 traveling outwardly from an outer peripheral surface of the wire 2 by 1.5 times an average of the longest length and the shortest length from the center of gravity C of the wire 2 to an outer surface of the wire 2 in a cross-sectional view.
    Type: Application
    Filed: February 5, 2020
    Publication date: May 26, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Keisuke OKUMURA, Yoshihiro FURUKAWA
  • Publication number: 20220165473
    Abstract: An inductor includes a wire, and a magnetic layer covering the wire. The wire includes a conducting line, and an insulating layer. The magnetic layer contains an anisotropic magnetic particle and a binder. In a peripheral region of the wire, the magnetic layer includes an orientated region in which the anisotropic magnetic particle is orientated along the periphery of the wire. The peripheral region is, in a cross-sectional view, a region from an outer surface of the wire to an outward distance of 1.5 times an average of the longest length and the shortest length from the center of gravity of the wire to the outer surface of the wire. An upper surface and a lower surface of the inductor are flat.
    Type: Application
    Filed: February 5, 2020
    Publication date: May 26, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshihiro FURUKAWA, Keisuke OKUMURA
  • Publication number: 20220165482
    Abstract: An inductor includes a wire, and a magnetic layer covering the wire. The wire includes a conducting line and an insulating layer. The magnetic layer contains an anisotropic magnetic particle and a binder. In a peripheral region of the wire, the magnetic layer includes an orientated region. The peripheral region is, in a cross-sectional view, a region from an outer surface of the wire to an outward distance of 1.5 times an average of the longest length and the shortest length from the center of gravity of the wire to the outer surface of the wire. The upper surface of the inductor has a protruding portion caused by the wire.
    Type: Application
    Filed: February 5, 2020
    Publication date: May 26, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshihiro FURUKAWA, Keisuke OKUMURA
  • Publication number: 20220165481
    Abstract: An inductor includes a wire, and a magnetic layer having a sheet shape and for embedding the wire. The wire includes a conducting wire, and an insulating film disposed on a conducting wire circumferential surface of the conducting wire. The magnetic layer contains an anisotropic magnetic particle at a ratio of 40% by volume or more. Of a first plane section, a second plane section, and a third plane section along a plane direction of the magnetic layer described below, when viewed in at least each of the two plane sections, in a first direction perpendicular to a flow direction and a thickness direction, an orientated region in which the anisotropic magnetic particle is orientated in the flow direction is observed in a vicinity region within 50 ?m from a first directional outer end edge of the insulating film outwardly.
    Type: Application
    Filed: February 5, 2020
    Publication date: May 26, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Keisuke OKUMURA, Yoshihiro FURUKAWA
  • Publication number: 20220165483
    Abstract: An inductor includes a wire including a conducting line, and an insulating film disposed on an entire circumferential surface of the conducting line, and a magnetic layer embedding the wire. The magnetic layer contains a magnetic particle. The magnetic layer includes a first layer in contact with a first surface of an outer peripheral surface of the wire, and a second layer in contact with a second surface of the outer peripheral surface of the wire and the surface of the first layer. The relative magnetic permeability of the first layer is higher than the relative magnetic permeability of the second layer.
    Type: Application
    Filed: February 5, 2020
    Publication date: May 26, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Keisuke OKUMURA, Yoshihiro FURUKAWA
  • Publication number: 20220165465
    Abstract: An inductor includes a wire including a conducting line, and an insulating film disposed on an entire circumferential surface of the conducting line, and a magnetic layer embedding the wire. The magnetic layer contains a magnetic particle. The magnetic layer includes a first layer in contact with the circumferential surface of the wire, a second layer in contact with the surface of the first layer, . . . and the n-th layer (n is a positive number of 3 or more) in contact with the surface of the (n?1)th layer. In the two layers adjacent to each other in the magnetic layer, the relative magnetic permeability of the layer closer to the wire is lower than the relative magnetic permeability of the layer farther from the wire.
    Type: Application
    Filed: February 5, 2020
    Publication date: May 26, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Keisuke OKUMURA, Yoshihiro FURUKAWA
  • Publication number: 20220028599
    Abstract: An inductor includes a wire and a magnetic layer which has a via, having an inner peripheral surface. On a cross-section across the via, a first point and a second point are located at one side and the other side in a direction in which the first principal surface extends and are kept 50 ?m away from a first edge on one side of the inner peripheral surface in the thickness direction, and a third point and a fourth point are located at one side and the other side in the extending direction and are kept 50 ?m away from a second edge on the other side of the inner peripheral surface in the thickness direction. An area of a quadrangle having all four points as vertices and an area of the molten solid inside the quadrangle are obtained, along with a percent (S1/S0×100) of the area.
    Type: Application
    Filed: July 21, 2021
    Publication date: January 27, 2022
    Applicant: NITTO DENKO CORPORATION
    Inventors: Yoshihiro FURUKAWA, Keisuke OKUMURA