Patents by Inventor Sho TONEGAWA

Sho TONEGAWA 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: 20230009139
    Abstract: A magnetic sensor includes: plural sensitive elements 31 each including a soft magnetic material layer 105 having a longitudinal direction and a transverse direction and a conductor layer having higher conductivity than the soft magnetic material layer 105 and extending through the soft magnetic material layer 105 in a longitudinal direction, the sensitive element 31 having uniaxial magnetic anisotropy in a direction intersecting the longitudinal direction and being configured to sense a magnetic field by a magnetic impedance effect; and a connecting portion 32 continuous with the conductor layer of the sensitive element and configured to connect transversely adjacent sensitive elements 31 in series.
    Type: Application
    Filed: November 17, 2020
    Publication date: January 12, 2023
    Applicant: SHOWA DENKO K.K.
    Inventors: Daizo ENDO, Tatsunori SHINO, Akira SAKAWAKI, Sho TONEGAWA, Yasumasa WATANABE
  • Publication number: 20220381853
    Abstract: A magnetic sensor includes: a non-magnetic substrate; and a sensitive element 31 having a longitudinal direction and a short direction, provided with uniaxial magnetic anisotropy in a direction crossing the longitudinal direction, and sensing a magnetic field by a magnetic impedance effect, wherein the sensitive element 31 includes plural soft magnetic material layers 105a to 105d and plural non-magnetic material layers 106a to 106c configured with a non-magnetic material and laminated between the plural soft magnetic material layers 105a to 105d, and the soft magnetic material layers 105a to 105d facing each other with each of the non-magnetic material layers 106a to 106c interposed therebetween are antiferromagnetically coupled.
    Type: Application
    Filed: November 17, 2020
    Publication date: December 1, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Daizo ENDO, Tatsunori SHINO, Akira SAKAWAKI, Sho TONEGAWA, Yasumasa WATANABE
  • Publication number: 20220308124
    Abstract: Sensitivity of a magnetic sensor using the magnetic impedance effect is improved. A magnetic sensor includes: a non-magnetic substrate; a sensitive element provided on the substrate, including a soft magnetic material, having a longitudinal direction and a short direction, provided with uniaxial magnetic anisotropy in a direction intersecting the longitudinal direction, and sensing a magnetic field by a magnetic impedance effect; and a protrusion part including a soft magnetic material and protruding from an end portion in the longitudinal direction of the sensitive element.
    Type: Application
    Filed: March 15, 2022
    Publication date: September 29, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Sho TONEGAWA, Akira Sakawaki, Rimpei Kindaichi
  • Publication number: 20220128634
    Abstract: In a magnetic sensor using a magnetic impedance effect, sensitivity is improved as compared to the case where a width of a sensitive element in the short direction is equal from one end to the other end in the longitudinal direction. The magnetic sensor includes: a non-magnetic substrate; and a sensitive element that is provided on the substrate, composed of a soft magnetic material, having a longitudinal direction and a short direction, provided with uniaxial magnetic anisotropy in a direction crossing the longitudinal direction, having a width at a center portion in the longitudinal direction that is smaller compared to a width at each of both end portions in the longitudinal direction, and sensing a magnetic field by a magnetic impedance effect.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 28, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Sho TONEGAWA, Akira Sakawaki, Yasumasa Watanabe, Daizo Endo, Tomoyuki Noguchi, Yuta Miyamoto
  • Publication number: 20180336924
    Abstract: According to the present invention, there is provided a recording medium comprising a substrate, a platinum layer formed on the substrate and having a (111) plane preferentially oriented, and a fullerene single crystal thin film formed on the platinum layer, and configured to be a recording layer, wherein an average value of average surface roughness Ra's with respect to four or more visual fields measured by using an atomic force microscope in a surface of the fullerene thin film is 0.5 nm or less.
    Type: Application
    Filed: May 15, 2018
    Publication date: November 22, 2018
    Applicant: SHOWA DENKO K.K.
    Inventors: Sho TONEGAWA, Masatoshi ICHIKAWA, Kenzo HANAWA
  • Patent number: 10008232
    Abstract: According to the present invention, there is provided a recording medium comprising a substrate, a platinum layer formed on the substrate and having a (111) plane preferentially oriented, and a fullerene single crystal thin film formed on the platinum layer, and configured to be a recording layer, wherein an average value of average surface roughness Ra's with respect to four or more visual fields measured by using an atomic force microscope in a surface of the fullerene thin film is 0.5 nm or less.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: June 26, 2018
    Assignee: SHOWA DENKO K.K.
    Inventors: Sho Tonegawa, Masatoshi Ichikawa, Kenzo Hanawa
  • Publication number: 20170263277
    Abstract: According to the present invention, there is provided a recording medium comprising a substrate, a platinum layer formed on the substrate and having a (111) plane preferentially oriented, and a fullerene single crystal thin film formed on the platinum layer, and configured to be a recording layer, wherein an average value of average surface roughness Ra's with respect to four or more visual fields measured by using an atomic force microscope in a surface of the fullerene thin film is 0.5 nm or less.
    Type: Application
    Filed: June 28, 2016
    Publication date: September 14, 2017
    Applicant: SHOWA DENKO K.K.
    Inventors: Sho TONEGAWA, Masatoshi ICHIKAWA, Kenzo HANAWA