Patents by Inventor Masayuki Yoneda

Masayuki Yoneda 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: 20220293329
    Abstract: An inductor component comprising an element body; and a coil disposed within the element body and wound along an axial direction. In an inner diameter of the coil, the inner diameter of the coil at both end portions in the axial direction is greater than the inner diameter of the coil at a central portion in the axial direction.
    Type: Application
    Filed: February 28, 2022
    Publication date: September 15, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Rikiya SANO, Masayuki YONEDA
  • Publication number: 20220247338
    Abstract: An electric tool includes an electric motor (AC motor), an impact mechanism, and a control unit. The control unit includes an impact detecting unit. The control unit performs feedback control on an operation of the electric motor. In a following period after the impact detecting unit has detected that the impact mechanism has started an impact operation, the control unit changes target parameters in a preceding period before the impact detecting unit detects that the impact mechanism has started the impact operation into different target parameters. The target parameters include a control gain of the feedback control.
    Type: Application
    Filed: January 30, 2020
    Publication date: August 4, 2022
    Inventors: Fumiiki YONEDA, Kenji HANAMURA, Masayuki NAKAHARA
  • Publication number: 20220216746
    Abstract: An electric tool includes an AC motor (an electric motor) and a control unit. The AC motor includes a permanent magnet and a coil. The control unit is configured to perform control on operation of the AC motor. The control performed by the control unit includes field weakening control. In the field weakening control, the control unit causes a flux-weakening current to flow through the coil. The flux-weakening current is a current that generates, in the coil, a magnetic flux that weakens a magnetic flux of the permanent magnet.
    Type: Application
    Filed: January 30, 2020
    Publication date: July 7, 2022
    Inventors: Fumiiki YONEDA, Kenji HANAMURA, Masayuki NAKAHARA
  • Publication number: 20220209578
    Abstract: A wireless power receiving device that receives AC power from a power transmission coil included in a wireless power transmission device. The wireless power receiving device includes a power receiving coil configured to receive AC power from a power transmission coil, a power receiving-side imaging unit having an auto-focus function, and a control unit configured to cause the power receiving-side imaging unit to image a range able to be imaged by the power receiving-side imaging unit and, in a case in which a marker located at a predetermined first position on an outer surface of the wireless power transmission device is imaged by the power receiving-side imaging unit, to output relative distance information representing relative distance of the power receiving coil with respect to the power transmission coil based on a detected distance using the auto-focus function used by the power receiving-side imaging unit for imaging the marker.
    Type: Application
    Filed: December 20, 2021
    Publication date: June 30, 2022
    Applicant: TDK CORPORATION
    Inventors: Masayuki YAMASHIMA, Ryo SHIOZAKI, Kazuyoshi HANABUSA, Kouichi SAKITA, Kazuki YONEDA
  • Patent number: 11366032
    Abstract: A sensor element includes a sensor chip and a diaphragm base joined to a surface of the sensor chip. The sensor chip includes a first diaphragm for measuring differential pressure between a first pressure and a second pressure and a second diaphragm for measuring absolute pressure or gage pressure of the second pressure. The diaphragm base includes a third diaphragm to directly receive a fluid that is a measurement target and has the first pressure, and a fourth diaphragm to directly receive a fluid that is a measurement target and having the second pressure. The sensor element has a liquid amount adjustment chamber to make an amount of a first pressure transmission medium filled in a first pressure introduction path and an amount of a second pressure transmission medium filled in a second pressure introduction path to be equal to each other.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: June 21, 2022
    Assignee: AZBIL CORPORATION
    Inventors: Tomohisa Tokuda, Masayuki Yoneda, Hirofumi Tojo, Ayumi Tsushima, Nozomi Kida
  • Patent number: 11340128
    Abstract: A sensor chip of a sensor element includes a diaphragm for measuring a differential pressure between a first pressure and a second pressure, a diaphragm for measuring an absolute pressure or a gauge pressure of the second pressure, a first pressure introduction path that transmits the first pressure to the diaphragm for measuring a differential pressure, and a second pressure introduction path that transmits the second pressure to the diaphragms. When the transmission of the first pressure or the second pressure to the diaphragms is indicated by an equivalent circuit, a path for transmitting the first pressure and a path for transmitting the second pressure are symmetrically formed.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: May 24, 2022
    Assignee: AZBIL CORPORATION
    Inventors: Tomohisa Tokuda, Masayuki Yoneda, Hirofumi Tojo, Ayumi Tsushima, Nozomi Kida
  • Publication number: 20220130600
    Abstract: An inductor component includes a component body having a mounting surface and a top surface and provided therein with a spiral inductor wiring line advancing in the extending direction of a winding center axis. The inductor wiring line is connected to a first external electrode at a first end, and connected to a second external electrode at a second end. The component body includes: a first inclined surface connected to a first end of the mounting surface on a first side in a length direction and inclined toward the top surface as separating from the first end; and a second inclined surface connected to a second end of the mounting surface on a second side in the length direction and inclined toward the top surface as separating from the second end. The winding center axis extends in a direction parallel to the mounting surface and perpendicular to the length direction.
    Type: Application
    Filed: October 26, 2021
    Publication date: April 28, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Rikiya SANO, Masayuki YONEDA
  • Publication number: 20220122761
    Abstract: An inductor component includes an element body. The element body has a mounting surface and a top surface that are parallel to each other, first and second parallel end surfaces, and first and second parallel side surfaces. An inductor wiring is disposed inside the element body. A first lead-out electrode is connected to a first end of the inductor wiring in an extension direction of the inductor wiring. A second lead-out electrode is connected to a second end of the inductor wiring in the extension direction of the inductor wiring. A lower surface of the first lead-out electrode and a lower surface of the second lead-out electrode are exposed from the mounting surface of the element body. The first lead-out electrode has a substantially quadrangular columnar shape that extends in a height direction. The first lead-out electrode is exposed from the first end surface and the first side surface.
    Type: Application
    Filed: September 15, 2021
    Publication date: April 21, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Rikiya SANO, Masayuki YONEDA
  • Publication number: 20220093318
    Abstract: An electronic component includes: a multilayer body; an inductor constituted of a plurality of inductor conductor layers and a via hole conductor, the inductor having a helical shape; a first outer electrode provided on a first end surface formed by contiguous outer edges of the insulation layers; and a second outer electrode provided on a second end surface. The plurality of inductor conductor layers have a first inductor conductor layer connected to the first outer electrode, and a second inductor conductor layer adjacent to the first inductor conductor layer on another side in the lamination direction. The via hole conductor connecting the first inductor conductor layer and the second inductor conductor layer is provided closer to the first outer electrode than the second outer electrode, and when viewed in plan view from a normal direction of the first end surface, does not overlap with the first outer electrode.
    Type: Application
    Filed: December 3, 2021
    Publication date: March 24, 2022
    Applicant: Murata Manufacturing Co., Ltd.
    Inventor: Masayuki YONEDA
  • Patent number: 11222743
    Abstract: An electronic component includes: a multilayer body; an inductor constituted of a plurality of inductor conductor layers and a via hole conductor, the inductor having a helical shape; a first outer electrode provided on a first end surface formed by contiguous outer edges of the insulation layers; and a second outer electrode provided on a second end surface. The plurality of inductor conductor layers have a first inductor conductor layer connected to the first outer electrode, and a second inductor conductor layer adjacent to the first inductor conductor layer on another side in the lamination direction. The via hole conductor connecting the first inductor conductor layer and the second inductor conductor layer is provided closer to the first outer electrode than the second outer electrode, and when viewed in plan view from a normal direction of the first end surface, does not overlap with the first outer electrode.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: January 11, 2022
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Masayuki Yoneda
  • Patent number: 11009417
    Abstract: A piezoresistive sensor includes a piezoresistive region to which first conductivity type impurity has been introduced, the piezoresistive region being formed in a semiconductor layer; a protection region to which second conductivity type impurity has been introduced, the protection region covering a top of a region in which the piezoresistive region is formed, the protection region being formed in the semiconductor layer; and contact regions to which the first conductivity type impurities have been introduced, the contact regions being connected to the piezoresistive region, the contact regions being formed so as to reach a surface of the semiconductor layer except a region in which the protection region is formed, in which the following inequality holds: impurity concentration of the piezoresistive region<impurity concentration of the protection region<impurity concentrations of the contact regions.
    Type: Grant
    Filed: March 1, 2019
    Date of Patent: May 18, 2021
    Assignee: AZBIL CORPORATION
    Inventors: Masayuki Yoneda, Hirofumi Tojo
  • Publication number: 20210108981
    Abstract: A sensor element includes a first diaphragm for measuring differential pressure between first pressure and second pressure and a second diaphragm for measuring absolute pressure or gage pressure of the second pressure. The sensor element has a first pressure introduction path (through holes, a groove, and a depression) through which the first pressure is transmitted to the first diaphragm. The sensor element has a second pressure introduction path (through holes, grooves, and depressions) through which the second pressure is transmitted to the first and second diaphragms. The sensor element has a liquid amount adjustment chamber (depression) configured to make an amount of a first pressure transmission medium filled in the first pressure introduction path and an amount of a second pressure transmission medium filled in the second pressure introduction path to be equal to each other.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 15, 2021
    Applicant: AZBIL CORPORATION
    Inventors: Tomohisa Tokuda, Masayuki Yoneda, Hirofumi Tojo, Ayumi Tsushima, Nozomi Kida
  • Publication number: 20210108979
    Abstract: A sensor element includes diaphragms that are respectively displaced by receiving pressures, and a plurality of pressure inlet passages (a first pressure inlet passage made up of through-holes, a groove, and recessed portions, and a second pressure inlet passage made up of a through-hole, a groove, and a recessed portion) that respectively transmit same or different pressures to the diaphragms. Each of the plurality of pressure inlet passages is filled with a pressure transmission medium capable of transmitting a pressure. A pressure is applied through part or all of the plurality of pressure inlet passages to each of the diaphragms.
    Type: Application
    Filed: October 7, 2020
    Publication date: April 15, 2021
    Applicant: AZBIL CORPORATION
    Inventors: Hirofumi TOJO, Masayuki YONEDA, Tomohisa TOKUDA, Ayumi TSUSHIMA, Nozomi KIDA
  • Publication number: 20210108980
    Abstract: A sensor chip of a sensor element includes a diaphragm for measuring a differential pressure between a first pressure and a second pressure, a diaphragm for measuring an absolute pressure or a gauge pressure of the second pressure, a first pressure introduction path that transmits the first pressure to the diaphragm for measuring a differential pressure, and a second pressure introduction path that transmits the second pressure to the diaphragms. When the transmission of the first pressure or the second pressure to the diaphragms is indicated by an equivalent circuit, a path for transmitting the first pressure and a path for transmitting the second pressure are symmetrically formed.
    Type: Application
    Filed: October 6, 2020
    Publication date: April 15, 2021
    Applicant: AZBIL CORPORATION
    Inventors: Tomohisa TOKUDA, Masayuki YONEDA, Hirofumi TOJO, Ayumi TSUSHIMA, Nozomi KIDA
  • Patent number: 10704976
    Abstract: A pressure sensor according to the present invention includes a diaphragm (3) including a first principal surface (3A) and a second principal surface (3B) that is opposite thereto, the first principal surface receiving a pressure of a fluid; a semiconductor chip (1) provided with resistors that constitute a strain gauge; and at least three support members (2a, 2b, 2c) made of an insulating material, each support member being fixed to the second principal surface at one end thereof and to the semiconductor chip at the other end thereof and extending perpendicularly to the second principal surface so as to support the semiconductor chip. One of the support members (2a) is provided at a center (30) of the diaphragm in plan view.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: July 7, 2020
    Assignee: AZBIL CORPORATION
    Inventors: Yuki Seto, Masayuki Yoneda, Yoshiyuki Ishikura, Tomohisa Tokuda, Rina Ogasawara
  • Publication number: 20190285495
    Abstract: A piezoresistive sensor includes a piezoresistive region to which first conductivity type impurity has been introduced, the piezoresistive region being formed in a semiconductor layer; a protection region to which second conductivity type impurity has been introduced, the protection region covering a top of a region in which the piezoresistive region is formed, the protection region being formed in the semiconductor layer; and contact regions to which the first conductivity type impurities have been introduced, the contact regions being connected to the piezoresistive region, the contact regions being formed so as to reach a surface of the semiconductor layer except a region in which the protection region is formed, in which the following inequality holds: impurity concentration of the piezoresistive region<impurity concentration of the protection region<impurity concentrations of the contact regions.
    Type: Application
    Filed: March 1, 2019
    Publication date: September 19, 2019
    Inventors: Masayuki YONEDA, Hirofumi TOJO
  • Patent number: 10418167
    Abstract: An inductor component has an element body defined by a length, a height, and a width, a coil disposed in the element body and helically wound in the width direction, and first and second external electrodes disposed in the element body and electrically connected to the coil. The coil includes a plurality of coil conductor layers arranged side by side in the width direction. The plurality of coil conductor layers is each wound in parallel with a plane including the length direction and the height direction. At least one of the coil conductor layers has a shortest distance of 140 ?m or less in at least one of the length and height directions between an inner circumferential surface of the coil conductor layer and an outer surface of the element body opposite to this inner circumferential surface.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: September 17, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Keiichi Yoshinaka, Masayuki Yoneda
  • Patent number: 10269482
    Abstract: Outer terminal electrodes form exposed surfaces that extend in the form of a substantially L shape while at least part thereof are embedded in a component main-body. A loop conductor layer of the coil conductor has a lower side portion, lateral side portions, oblique side portions, and an upper side portion. The lower side portion has a length shorter than a gap between outer terminal electrodes, and is positioned within a range of the gap.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: April 23, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Masayuki Yoneda, Keiichi Yoshinaka
  • Publication number: 20190003910
    Abstract: A pressure sensor according to the present invention includes a diaphragm (3) including a first principal surface (3A) and a second principal surface (3B) that is opposite thereto, the first principal surface receiving a pressure of a fluid; a semiconductor chip (1) provided with resistors that constitute a strain gauge; and at least three support members (2a, 2b, 2c) made of an insulating material, each support member being fixed to the second principal surface at one end thereof and to the semiconductor chip at the other end thereof and extending perpendicularly to the second principal surface so as to support the semiconductor chip. One of the support members (2a) is provided at a center (30) of the diaphragm in plan view.
    Type: Application
    Filed: December 15, 2016
    Publication date: January 3, 2019
    Applicant: AZBIL CORPORATION
    Inventors: Yuki SETO, Masayuki YONEDA, Yoshiyuki ISHIKURA, Tomohisa TOKUDA, Rina OGASAWARA
  • Patent number: 10096427
    Abstract: The electronic component includes a substantially rectangular parallelepiped multilayer body formed by laminating a plurality of insulation layers, a capacitor including a plurality of capacitor conductor layers provided on the insulation layers, and a substantially spiral-shaped inductor including one or more inductor conductor layers provided on the insulation layers and having a center axis extending along the lamination direction. A mounting surface of the multilayer body is a surface of the multilayer body located on the end of one side of a first orthogonal direction orthogonal to the lamination direction. The inductor conductor layer and the capacitor conductor layer are provided on the first insulation layer. On the first insulation layer, an end portion of the capacitor conductor layer on the one side of the first orthogonal direction are closer to the mounting surface than an end portion of the inductor conductor layer on the one side of the first orthogonal direction.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: October 9, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Masayuki Yoneda