Patents by Inventor Kazuma YAMAWAKI

Kazuma YAMAWAKI 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: 11959979
    Abstract: This sensor unit includes a base having a substantially-rectangular planar shape including a first side and a second side that are substantially orthogonal to each other, and a plurality of first sensors provided on the base and arranged on a first axis. The first axis is substantially parallel to the first side and passes through a center position of the base.
    Type: Grant
    Filed: March 8, 2023
    Date of Patent: April 16, 2024
    Assignee: TDK CORPORATION
    Inventors: Kunihiro Ueda, Yoshimitsu Wada, Hiraku Hirabayashi, Kazuma Yamawaki, Tsuyoshi Umehara
  • Patent number: 11946989
    Abstract: A magnetic sensor device includes at least one magnetic sensor and a support. A center of gravity of an element layout area of the at least one magnetic sensor is deviated from a center of gravity of a reference plane of the support. The at least one magnetic sensor includes four resistor sections constituted by a plurality of magnetoresistive elements. Magnetization of a free layer in each of two of the resistor sections includes a component in a third magnetization direction. The magnetization of a free layer in each of the other two resistor sections includes a component in a fourth magnetization direction opposite to the third magnetization direction.
    Type: Grant
    Filed: May 16, 2023
    Date of Patent: April 2, 2024
    Assignee: TDK CORPORATION
    Inventors: Norikazu Ota, Hiraku Hirabayashi, Kazuma Yamawaki, Shuhei Miyazaki, Kazuya Watanabe
  • Publication number: 20240085499
    Abstract: A magnetic sensor device includes a stacked structure including a sensor substrate and a sensor element circuitry. The sensor substrate has a surface and a perimeter. The sensor element circuitry is provided on the surface of the sensor substrate, has a perimeter, and includes one or more magnetic sensor elements. As viewed in a plane parallel to the surface, a portion or all of the perimeter of the sensor element circuitry is located at a position different from a position of the perimeter of the sensor substrate.
    Type: Application
    Filed: August 11, 2023
    Publication date: March 14, 2024
    Applicant: TDK CORPORATION
    Inventors: Kazuma YAMAWAKI, Shuhei MIYAZAKI
  • Publication number: 20240019505
    Abstract: A magnetic sensor device includes a sensor substrate and a sensor element circuitry. The sensor substrate has a surface. The sensor element circuitry is provided on the surface of the sensor substrate and includes one or more magnetic sensor elements. As viewed in a plane parallel to the surface, the sensor substrate has a perimeter that is substantially octagonal. The perimeter includes two short sides opposed to each other, two long sides opposed to each other, and four corners. The four corners are each chamfered entirely or partially in a thickness direction that is substantially orthogonal to the surface. A ratio of a length of each of the four corners along each of the two long sides of the sensor substrate to a length of each of the two long sides of the sensor substrate is less than or equal to 0.39.
    Type: Application
    Filed: June 29, 2023
    Publication date: January 18, 2024
    Applicant: TDK CORPORATION
    Inventors: Kazuma YAMAWAKI, Shuhei MIYAZAKI
  • Publication number: 20230402352
    Abstract: A lead frame includes a die pad, a plurality of leads, and a frame member. The frame member includes a first connection bar extending in a first direction and a second connection bar extending in a second direction. The die pad is connected to the second connection bar. The plurality of leads include a plurality of first leads connected to the first connection bar and a plurality of second leads connected to the second connection bar. The number of the plurality of second leads is smaller than the number of the plurality of first leads. Each of the plurality of second leads is connected to one corresponding first lead of the plurality of first leads.
    Type: Application
    Filed: May 17, 2023
    Publication date: December 14, 2023
    Applicant: TDK CORPORATION
    Inventors: Kazuma YAMAWAKI, Hiraku HIRABAYASHI
  • Publication number: 20230280420
    Abstract: A magnetic sensor device includes at least one magnetic sensor and a support. A center of gravity of an element layout area of the at least one magnetic sensor is deviated from a center of gravity of a reference plane of the support. The at least one magnetic sensor includes four resistor sections constituted by a plurality of magnetoresistive elements. Magnetization of a free layer in each of two of the resistor sections includes a component in a third magnetization direction. The magnetization of a free layer in each of the other two resistor sections includes a component in a fourth magnetization direction opposite to the third magnetization direction.
    Type: Application
    Filed: May 16, 2023
    Publication date: September 7, 2023
    Applicant: TDK CORPORATION
    Inventors: Norikazu OTA, Hiraku HIRABAYASHI, Kazuma YAMAWAKI, Shuhei MIYAZAKI, Kazuya WATANABE
  • Publication number: 20230251331
    Abstract: This sensor unit includes a base having a substantially-rectangular planar shape including a first side and a second side that are substantially orthogonal to each other, and a plurality of first sensors provided on the base and arranged on a first axis. The first axis is substantially parallel to the first side and passes through a center position of the base.
    Type: Application
    Filed: March 8, 2023
    Publication date: August 10, 2023
    Applicant: TDK Corporation
    Inventors: Kunihiro Ueda, Yoshimitsu Wada, Hiraku Hirabayashi, Kazuma Yamawaki, Tsuyoshi Umehara
  • Patent number: 11686788
    Abstract: A magnetic sensor device includes at least one magnetic sensor and a support. A center of gravity of an element layout area of the at least one magnetic sensor is deviated from a center of gravity of a reference plane of the support. The at least one magnetic sensor includes four resistor sections constituted by a plurality of magnetoresistive elements. Magnetization of a free layer in each of two of the resistor sections includes a component in a third magnetization direction. The magnetization of a free layer in each of the other two resistor sections includes a component in a fourth magnetization direction opposite to the third magnetization direction.
    Type: Grant
    Filed: May 2, 2022
    Date of Patent: June 27, 2023
    Assignee: TDK CORPORATION
    Inventors: Norikazu Ota, Hiraku Hirabayashi, Kazuma Yamawaki, Shuhei Miyazaki, Kazuya Watanabe
  • Publication number: 20230140621
    Abstract: An electronic component package of an embodiment of the disclosure includes a base, a first plated layer, a first electronic component chip, a second plated layer, and a second electronic component chip. The base includes a first surface and a second surface. The first plated layer covers the first surface. The first electronic component chip is provided on the first plated layer with a first insulating layer being interposed therebetween. The second plated layer covers the second surface. The second electronic component chip is provided on the second plated layer with a second insulating layer being interposed therebetween. The first plated layer and the second plated layer each include a first metal material that is less likely to undergo an ion migration phenomenon than silver (Ag).
    Type: Application
    Filed: December 29, 2022
    Publication date: May 4, 2023
    Applicant: TDK Corporation
    Inventors: Yongfu CAI, Shuhei MIYAZAKI, Kazuma YAMAWAKI
  • Patent number: 11630165
    Abstract: This sensor unit includes a base having a substantially-rectangular planar shape including a first side and a second side that are substantially orthogonal to each other, and a plurality of first sensors provided on the base and arranged on a first axis. The first axis is substantially parallel to the first side and passes through a center position of the base.
    Type: Grant
    Filed: March 24, 2022
    Date of Patent: April 18, 2023
    Assignee: TDK CORPORATION
    Inventors: Kunihiro Ueda, Yoshimitsu Wada, Hiraku Hirabayashi, Kazuma Yamawaki, Tsuyoshi Umehara
  • Publication number: 20230056523
    Abstract: A lead frame includes a die pad, a plurality of leads, at least one support lead, and a frame member. The frame member includes two first connection bars and two second connection bars. The plurality of leads include a plurality of specific leads. The plurality of specific leads are each connected to the first connection bar. At least one of the specific leads is connected to the second connection bar via the at least one support lead. The cross-sectional second-order moment of a cross section of the at least one support lead perpendicular to a Y direction around an X axis is equal to or more than the cross-sectional second-order moment of a cross section of the at least one support lead perpendicular to an X direction around a Y axis.
    Type: Application
    Filed: July 5, 2022
    Publication date: February 23, 2023
    Applicant: TDK CORPORATION
    Inventors: Kazuma YAMAWAKI, Shuhei MIYAZAKI
  • Publication number: 20230053559
    Abstract: A lead frame includes a die pad, a plurality of leads, a frame member, and at least one wire. The frame member includes two first connection bars and two second connection bars. The plurality of leads include a plurality of specific leads. Each of the specific leads is connected to the first connection bar. At least one of the specific leads is connected to the second connection bar via the at least one wire.
    Type: Application
    Filed: July 5, 2022
    Publication date: February 23, 2023
    Applicant: TDK CORPORATION
    Inventors: Kazuma YAMAWAKI, Shuhei MIYAZAKI
  • Patent number: 11569143
    Abstract: An electronic component package of an embodiment of the disclosure includes a base, a first plated layer, a first electronic component chip, a second plated layer, and a second electronic component chip. The base includes a first surface and a second surface. The first plated layer covers the first surface. The first electronic component chip is provided on the first plated layer with a first insulating layer being interposed therebetween. The second plated layer covers the second surface. The second electronic component chip is provided on the second plated layer with a second insulating layer being interposed therebetween. The first plated layer and the second plated layer each include a first metal material that is less likely to undergo an ion migration phenomenon than silver (Ag).
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: January 31, 2023
    Assignee: TDK CORPORATION
    Inventors: Yongfu Cai, Shuhei Miyazaki, Kazuma Yamawaki
  • Publication number: 20230008088
    Abstract: A magnetic sensor device includes at least one magnetic sensor and a support. A center of gravity of an element layout area of the at least one magnetic sensor is deviated from a center of gravity of a reference plane of the support. The at least one magnetic sensor includes four resistor sections constituted by a plurality of magnetoresistive elements. Magnetization of a free layer in each of two of the resistor sections includes a component in a third magnetization direction. The magnetization of a free layer in each of the other two resistor sections includes a component in a fourth magnetization direction opposite to the third magnetization direction.
    Type: Application
    Filed: May 2, 2022
    Publication date: January 12, 2023
    Applicant: TDK CORPORATION
    Inventors: Norikazu OTA, Hiraku HIRABAYASHI, Kazuma YAMAWAKI, Shuhei MIYAZAKI, Kazuya WATANABE
  • Publication number: 20220214409
    Abstract: This sensor unit includes a base having a substantially-rectangular planar shape including a first side and a second side that are substantially orthogonal to each other, and a plurality of first sensors provided on the base and arranged on a first axis. The first axis is substantially parallel to the first side and passes through a center position of the base.
    Type: Application
    Filed: March 24, 2022
    Publication date: July 7, 2022
    Applicant: TDK CORPORATION
    Inventors: Kunihiro UEDA, Yoshimitsu WADA, Hiraku HIRABAYASHI, Kazuma YAMAWAKI, Tsuyoshi UMEHARA
  • Patent number: 11313920
    Abstract: This sensor unit includes a base having a substantially-rectangular planar shape including a first side and a second side that are substantially orthogonal to each other, and a plurality of first sensors provided on the base and arranged on a first axis. The first axis is substantially parallel to the first side and passes through a center position of the base.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: April 26, 2022
    Assignee: TDK CORPORATION
    Inventors: Kunihiro Ueda, Yoshimitsu Wada, Hiraku Hirabayashi, Kazuma Yamawaki, Tsuyoshi Umehara
  • Publication number: 20200209324
    Abstract: This sensor unit includes a base having a substantially-rectangular planar shape including a first side and a second side that are substantially orthogonal to each other, and a plurality of first sensors provided on the base and arranged on a first axis. The first axis is substantially parallel to the first side and passes through a center position of the base.
    Type: Application
    Filed: March 12, 2020
    Publication date: July 2, 2020
    Applicant: TDK CORPORATION
    Inventors: Kunihiro UEDA, Yoshimitsu WADA, Hiraku HIRABAYASHI, Kazuma YAMAWAKI, Tsuyoshi UMEHARA
  • Patent number: 10634734
    Abstract: This sensor unit includes a base having a substantially-rectangular planar shape including a first side and a second side that are substantially orthogonal to each other, and a plurality of first sensors provided on the base and arranged on a first axis. The first axis is substantially parallel to the first side and passes through a center position of the base.
    Type: Grant
    Filed: July 5, 2017
    Date of Patent: April 28, 2020
    Assignee: TDK CORPORATION
    Inventors: Kunihiro Ueda, Yoshimitsu Wada, Hiraku Hirabayashi, Kazuma Yamawaki, Tsuyoshi Umehara
  • Publication number: 20200035574
    Abstract: An electronic component package of an embodiment of the disclosure includes a base, a first plated layer, a first electronic component chip, a second plated layer, and a second electronic component chip. The base includes a first surface and a second surface. The first plated layer covers the first surface. The first electronic component chip is provided on the first plated layer with a first insulating layer being interposed therebetween. The second plated layer covers the second surface. The second electronic component chip is provided on the second plated layer with a second insulating layer being interposed therebetween. The first plated layer and the second plated layer each include a first metal material that is less likely to undergo an ion migration phenomenon than silver (Ag).
    Type: Application
    Filed: May 9, 2019
    Publication date: January 30, 2020
    Applicant: TDK Corporation
    Inventors: Yongfu CAI, Shuhei MIYAZAKI, Kazuma YAMAWAKI
  • Publication number: 20180017634
    Abstract: This sensor unit includes a base having a substantially-rectangular planar shape including a first side and a second side that are substantially orthogonal to each other, and a plurality of first sensors provided on the base and arranged on a first axis. The first axis is substantially parallel to the first side and passes through a center position of the base.
    Type: Application
    Filed: July 5, 2017
    Publication date: January 18, 2018
    Applicant: TDK CORPORATION
    Inventors: Kunihiro UEDA, Yoshimitsu WADA, Hiraku HIRABAYASHI, Kazuma YAMAWAKI, Tsuyoshi UMEHARA