Patents by Inventor Kazuya Kumamoto

Kazuya Kumamoto 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: 11691489
    Abstract: A door structure of a vehicle includes: an outer panel (4); an inner member (5, 11A) arranged on an inner side of the outer panel in a vehicle width direction; a rigid member (9) arranged between the inner member (5, 11A) and the outer panel (4); and a vibration suppression member (22) arranged between the outer panel (4) and the rigid member (9). The outer panel (4) includes a hem section (10f, 10r, 10u) disposed on a periphery thereof and connected to the inner member (5, 11A) by swaging. The vibration suppression member (22) includes a damping material (22A to 22C) located adjacent to the hem section (10f, 10r, 10u) and being in contact with the outer panel (4) and the rigid member (9).
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: July 4, 2023
    Assignee: MAZDA MOTOR CORPORATION
    Inventors: Kazuya Kumamoto, Tomokazu Kitagawa, Takashi Ikemoto
  • Publication number: 20220080815
    Abstract: A door structure of a vehicle includes: an outer panel (4); an inner member (5, 11A) arranged on an inner side of the outer panel in a vehicle width direction; a rigid member (9) arranged between the inner member (5, 11A) and the outer panel (4); and a vibration suppression member (22) arranged between the outer panel (4) and the rigid member (9). The outer panel (4) includes a hem section (10f, 10r, 10u) disposed on a periphery thereof and connected to the inner member (5, 11A) by swaging. The vibration suppression member (22) includes a damping material (22A to 22C) located adjacent to the hem section (10f, 10r, 10u) and being in contact with the outer panel (4) and the rigid member (9).
    Type: Application
    Filed: January 10, 2020
    Publication date: March 17, 2022
    Applicant: MAZDA MOTOR CORPORATION
    Inventors: Kazuya KUMAMOTO, Tomokazu KITAGAWA, Takashi IKEMOTO
  • Patent number: 10541106
    Abstract: A charged particle beam device includes: a charged particle source; an acceleration electric power source connected to the charged particle source for accelerating a charged particle beam emitted by the acceleration electric power source; and an objective lens for focusing the charged particle beam onto a sample, the objective lens including: a central magnetic pole having a central axis coinciding with an ideal optical axis of the charged particle beam; an upper magnetic pole; a cylindrical side-surface magnetic pole; and a disk-shaped lower magnetic pole, the central magnetic pole having an upper portion on a side of the sample and a column-shaped lower portion, the upper magnetic pole having a circular opening at a center thereof and being in a shape of a disk that is tapered to a center thereof and that is thinner at a position closer to a center of gravity of the central magnetic pole.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: January 21, 2020
    Assignee: Matsusada Precision, Inc.
    Inventors: Kazuya Kumamoto, Sadayoshi Matsuda
  • Patent number: 10497535
    Abstract: A charged particle beam device includes: a charged particle source configured to emit a charged particle beam; an acceleration electric power source connected to the charged particle source and configured to accelerate the charged particle beam; a second objective lens configured to focus the charged particle beam onto a sample; and a second detector. The second objective lens is positioned on the opposite side of the sample from where the charged particle beam is incident on the sample. The second detector is configured to receive at least one of: an electromagnetic wave that the sample emits upon receiving the charged particle beam, and an electromagnetic wave that the sample reflects upon receiving the charged particle beam. The second detector carries out a detection of the received electromagnetic wave(s).
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: December 3, 2019
    Assignee: Matsusada Precision, Inc.
    Inventors: Kazuya Kumamoto, Sadayoshi Matsuda
  • Publication number: 20190326087
    Abstract: A charged particle beam device includes: a charged particle source; an acceleration electric power source connected to the charged particle source for accelerating a charged particle beam emitted by the acceleration electric power source; and an objective lens for focusing the charged particle beam onto a sample, the objective lens including: a central magnetic pole having a central axis coinciding with an ideal optical axis of the charged particle beam; an upper magnetic pole; a cylindrical side-surface magnetic pole; and a disk-shaped lower magnetic pole, the central magnetic pole having an upper portion on a side of the sample and a column-shaped lower portion, the upper magnetic pole having a circular opening at a center thereof and being in a shape of a disk that is tapered to a center thereof and that is thinner at a position closer to a center of gravity of the central magnetic pole.
    Type: Application
    Filed: June 25, 2019
    Publication date: October 24, 2019
    Inventors: Kazuya Kumamoto, Sadayoshi Matsuda
  • Patent number: 10438770
    Abstract: A charged particle beam device includes: a charged particle source; an acceleration electric power source connected to the charged particle source for accelerating a charged particle beam emitted by the acceleration electric power source; and an objective lens for focusing the charged particle beam onto a sample, the objective lens including: a central magnetic pole having a central axis coinciding with an ideal optical axis of the charged particle beam; an upper magnetic pole; a cylindrical side-surface magnetic pole; and a disk-shaped lower magnetic pole, the central magnetic pole having an upper portion on a side of the sample and a column-shaped lower portion, the upper magnetic pole having a circular opening at a center thereof and being in a shape of a disk that is tapered to a center thereof and that is thinner at a position closer to a center of gravity of the central magnetic pole.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: October 8, 2019
    Assignee: Matsusada Precision, Inc.
    Inventors: Kazuya Kumamoto, Sadayoshi Matsuda
  • Publication number: 20190103247
    Abstract: A charged particle beam device includes: a charged particle source an acceleration electric power source connected to the charged particle source for accelerating a charged particle beam emitted by the acceleration electric power source; and an objective lens for focusing the charged particle beam onto a sample, the objective lens including: a central magnetic pole having a central axis coinciding with an ideal optical axis of the charged particle beam; an upper magnetic pole; a cylindrical side-surface magnetic pole; and a disk-shaped lower magnetic pole, the central magnetic pole having an upper portion on a side of the sample and a column-shaped lower portion, the upper magnetic pole having a circular opening at a center thereof and being in a shape of a disk that is tapered to a center thereof and that is thinner at a position closer to a center of gravity of the central magnetic pole.
    Type: Application
    Filed: October 19, 2018
    Publication date: April 4, 2019
    Inventors: Kazuya Kumamoto, Sadayoshi Matsuda
  • Publication number: 20180358199
    Abstract: A charged particle beam device includes: a charged particle source configured to emit a charged particle beam; an acceleration electric power source connected to the charged particle source and configured to accelerate the charged particle beam; a second objective lens configured to focus the charged particle beam onto a sample; and a second detector. The second objective lens is positioned on the opposite side of the sample from where the charged particle beam is incident on the sample. The second detector is configured to receive at least one of: an electromagnetic wave that the sample emits upon receiving the charged particle beam, and an electromagnetic wave that the sample reflects upon receiving the charged particle beam. The second detector carries out a detection of the received electromagnetic wave(s).
    Type: Application
    Filed: November 29, 2016
    Publication date: December 13, 2018
    Inventors: Kazuya Kumamoto, Sadayoshi Matsuda
  • Patent number: 10153129
    Abstract: A charged particle beam device includes: a charged particle source; an acceleration electric power source connected to the charged particle source for accelerating a charged particle beam emitted by the acceleration electric power source; and an objective lens for focusing the charged particle beam onto a sample, the objective lens including: a central magnetic pole having a central axis coinciding with an ideal optical axis of the charged particle beam; an upper magnetic pole; a cylindrical side-surface magnetic pole; and a disk-shaped lower magnetic pole, the central magnetic pole having an upper portion on a side of the sample and a column-shaped lower portion, the upper magnetic pole having a circular opening at a center thereof and being in a shape of a disk that is tapered to a center thereof and that is thinner at a position closer to a center of gravity of the central magnetic pole.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: December 11, 2018
    Assignee: Matsusada Precision, Inc.
    Inventors: Kazuya Kumamoto, Sadayoshi Matsuda
  • Publication number: 20180033588
    Abstract: A charged particle beam device includes: a charged particle source; an acceleration electric power source connected to the charged particle source for accelerating a charged particle beam emitted by the acceleration electric power source; and an objective lens for focusing the charged particle beam onto a sample, the objective lens including: a central magnetic pole having a central axis coinciding with an ideal optical axis of the charged particle beam; an upper magnetic pole; a cylindrical side-surface magnetic pole; and a disk-shaped lower magnetic pole, the central magnetic pole having an upper portion on a side of the sample and a column-shaped lower portion, the upper magnetic pole having a circular opening at a center thereof and being in a shape of a disk that is tapered to a center thereof and that is thinner at a position closer to a center of gravity of the central magnetic pole.
    Type: Application
    Filed: December 3, 2015
    Publication date: February 1, 2018
    Applicant: Matsusada Precision, Inc.
    Inventors: Kazuya Kumamoto, Sadayoshi Matsuda