Patents by Inventor Kei Masunishi

Kei Masunishi 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: 11531042
    Abstract: According to one embodiment, a sensor includes a base body, a first supporter fixed to the base body, and a first movable part separated from the base body. The first movable part includes a first movable base part supported by the first supporter, a second movable base part connected with the first movable base part, and a first movable beam. The first movable beam includes a first beam, a first movable conductive part, and a first connection region. The first beam includes a first beam portion, a second beam portion, and a third beam portion between the first beam portion and the second beam portion. The first beam portion is connected with the first movable base part. The second beam portion is connected with the second movable base part. The first connection region connects the third beam portion and the first movable conductive part.
    Type: Grant
    Filed: March 2, 2021
    Date of Patent: December 20, 2022
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kei Masunishi, Yasushi Tomizawa, Etsuji Ogawa, Ryunosuke Gando, Shiori Kaji, Hiroki Hiraga, Fumito Miyazaki
  • Publication number: 20220326013
    Abstract: According to one embodiment, a sensor includes a base body including a first surface including first and second base body regions, a first structure body provided in the first base body region, a second structure body provided in the second base body region, and a control device. The first structure body includes a first movable member configured to vibrate. The vibration of the first movable member includes first and second components. The second structure body includes a second movable member configured to vibrate. The control device includes a controller configured to perform a processing operation. The processing operation includes outputting a second rotation angle, The second rotation angle is obtained by correcting a first rotation angle based on a resonance frequency of the second movable member. The first rotation angle of the first movable member is obtained based on the first component and the second component.
    Type: Application
    Filed: February 11, 2022
    Publication date: October 13, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Fumito MIYAZAKI, Yasushi TOMIZAWA, Ryunosuke GANDO, Hiroki HIRAGA, Kei MASUNISHI, Shiori KAJI, Daiki ONO, Etsuji OGAWA
  • Publication number: 20220276052
    Abstract: According to one embodiment, a sensor includes a sensor part. The sensor part includes a supporter and a movable part. The movable part includes a movable member located around the supporter in a first plane, and a plurality of structure members located between the supporter and the movable member. The structure members have bent shapes. The structure members connect the movable member with the supporter. The movable member is capable of vibrating. The movable part has the supporter as a center of rotational symmetry. The movable part has a plurality of mirror planes. The mirror planes pass through the center of the rotational symmetry and cross the first plane.
    Type: Application
    Filed: August 25, 2021
    Publication date: September 1, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroki HIRAGA, Ryunosuke GANDO, Yasushi TOMIZAWA, Fumito MIYAZAKI, Daiki ONO, Kei MASUNISHI, Etsuji OGAWA
  • Publication number: 20220268583
    Abstract: According to one embodiment, a sensor includes a sensor part including first and second sensor elements, and a circuit part. The first sensor element includes a first supporter, a first movable part capable of vibrating, first and second electrodes. The first electrode outputs a first signal corresponding to a vibration of the first movable part. The second electrode outputs a second signal corresponding to the vibration of the first movable part. The second sensor element includes a second supporter, a second movable part capable of vibrating, third and fourth electrodes. The third electrode outputs a third signal corresponding to a vibration of the second movable part. The fourth electrode outputs a fourth signal corresponding to the vibration of the second movable part. The circuit part includes a calculator. The calculator outputs a differential operation result between first and second processing signals.
    Type: Application
    Filed: August 19, 2021
    Publication date: August 25, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryunosuke GANDO, Daiki ONO, Yasushi TOMIZAWA, Fumito MIYAZAKI, Shiori KAJI, Kei MASUNISHI, Hiroki HIRAGA, Etsuji OGAWA
  • Publication number: 20220259035
    Abstract: According to one embodiment, a sensor includes a first detection element. The first detection element includes a base body, a first support member fixed to the base body, a conductive first movable member, and a first conductive part fixed to the base body. The first movable member includes first, second, third, fourth and fifth movable parts. In a second direction crossing a first direction from the base body toward the first movable member, the third movable part is between the first and second movable parts. In the second direction, the fourth movable part is between the first and third movable parts. In the second direction, the fifth movable part is between the third and second movable parts. The first movable part is supported by the first support member. The second, third, fourth and fifth movable parts are separated from the base body.
    Type: Application
    Filed: August 30, 2021
    Publication date: August 18, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kei MASUNISHI, Yasushi TOMIZAWA, Etsuji OGAWA, Ryunosuke GANDO, Shiori KAJI, Hiroki HIRAGA, Fumito MIYAZAKI, Daiki ONO
  • Patent number: 11402209
    Abstract: According to one embodiment, a sensor includes a movable member including a first movable portion and a second movable portion, and a first fixed member. At least a portion of the first fixed member is between the first movable portion and the second movable portion. The first fixed member includes a first fixed counter portion opposing the first movable portion, and a second fixed counter portion opposing the second movable portion. The first fixed counter portion includes a first fixed protruding portion protruding toward the first movable portion. The second fixed counter portion includes a second fixed protruding portion protruding toward the second movable portion.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: August 2, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Shiori Kaji, Ryunosuke Gando, Yasushi Tomizawa, Kei Masunishi, Tamio Ikehashi
  • Patent number: 11387064
    Abstract: According to one embodiment, a MEMS element includes a first member, and an element part. The element part includes a first fixed electrode fixed to the first member, a first movable electrode facing the first fixed electrode, a first conductive member electrically connected to the first movable electrode, and a second conductive member electrically connected to the first movable electrode. The first conductive member and the second conductive member support the first movable electrode to be separated from the first fixed electrode in a first state before a first electrical signal is applied between the second conductive member and the first fixed electrode. The first conductive member and the second conductive member are in a broken state in a second state after the first electrical signal is applied between the second conductive member and the first fixed electrode.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: July 12, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroaki Yamazaki, Kei Masunishi
  • Publication number: 20220137085
    Abstract: According to one embodiment, a sensor includes a first detection element, and a processing part. The first detection element includes a base body, a first supporter fixed to the base body, a first movable part, first and second counter conductive parts. The first movable part is supported by the first supporter and separated from the base body. The first movable part includes a first movable base part supported by the first supporter, a second movable base part connected with the first movable base part, a first movable beam including a first beam, and a second movable beam including a second beam. The first beam includes a first end portion and a first other end portion. The second beam includes a second end portion and a second other end portion. The first counter conductive part faces the first movable beam. The second counter conductive part faces the second movable beam.
    Type: Application
    Filed: August 31, 2021
    Publication date: May 5, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kei Masunishi, Yasushi Tomizawa, Etsuji Ogawa, Ryunosuke Gando, Shiori Kaji, Hiraki Hiraga, Fumito Miyazaki
  • Publication number: 20220084767
    Abstract: According to one embodiment, a MEMS element includes a first member, and an element part. The element part includes a first fixed electrode fixed to the first member, a first movable electrode facing the first fixed electrode, a first conductive member electrically connected to the first movable electrode, and a second conductive member electrically connected to the first movable electrode. The first movable electrode is supported by the first and second conductive members to be separated from the first fixed electrode. The first conductive member has a meandering structure. The second conductive member includes a first conductive region and a second conductive region. The second conductive region is between the first movable electrode and the first conductive region. A second width of the second conductive region along a second direction is less than a first width of the first conductive region along the second direction.
    Type: Application
    Filed: February 26, 2021
    Publication date: March 17, 2022
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroaki YAMAZAKI, Kei Masunishi
  • Patent number: 11214481
    Abstract: According to one embodiment, a MEMS element includes a base body, a supporter, a film part, a first electrode, a second electrode, and an insulating member. The supporter is fixed to the base body. The film part is separated from the base body in a first direction and supported by the supporter. The first electrode is fixed to the base body and provided between the base body and the film part. The second electrode is fixed to the film part and provided between the first electrode and the film part. The insulating member includes a first insulating region and a second insulating region. The first insulating region is provided between the first electrode and the second electrode. A first gap is provided between the first insulating region and the second electrode. The second insulating region does not overlap the first electrode in the first direction.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: January 4, 2022
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Fumitaka Ishibashi, Naofumi Nakamura, Hiroaki Yamazaki, Tomohiro Saito, Tomohiko Nagata, Kei Masunishi, Yoshihiko Kurui
  • Publication number: 20210396780
    Abstract: According to one embodiment, a sensor includes a base body, a first supporter fixed to the base body, and a first movable part separated from the base body. The first movable part includes a first movable base part supported by the first supporter, a second movable base part connected with the first movable base part, and a first movable beam. The first movable beam includes a first beam, a first movable conductive part, and a first connection region. The first beam includes a first beam portion, a second beam portion, and a third beam portion between the first beam portion and the second beam portion. The first beam portion is connected with the first movable base part. The second beam portion is connected with the second movable base part. The first connection region connects the third beam portion and the first movable conductive part.
    Type: Application
    Filed: March 2, 2021
    Publication date: December 23, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kei MASUNISHI, Yasushi TOMIZAWA, Etsuji OGAWA, Ryunosuke GANDO, Shiori KAJI, Hiroki HIRAGA, Fumito MIYAZAKI
  • Publication number: 20210381831
    Abstract: According to one embodiment, a sensor includes a processor. The processor is configured to acquire a first angle value from an angle gyro sensor and acquire a first angular velocity value from an angular velocity gyro sensor, and perform at least first processing. The first processing includes outputting a second angular velocity value by correcting the first angular velocity value by using a value obtained by filtering a difference between the first angle value and a post-processing angle value. The post-processing angle value is obtained by processing the first angular velocity value.
    Type: Application
    Filed: January 29, 2021
    Publication date: December 9, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Ryunosuke GANDO, Yasushi TOMIZAWA, Daiki ONO, Kei MASUNISHI
  • Patent number: 11169035
    Abstract: According to one embodiment, a pressure sensor includes a base body, a supporter, a film part, a first electrode, and a second electrode. The supporter is fixed to the base body. The film part is separated from the base body. The film part includes first, second, and third partial regions, and a rim portion. The rim portion is supported by the supporter. The second partial region is between the first partial region and the rim portion. The third partial region is between the second partial region and the rim portion. The first electrode is provided between the base body and the first partial region and between the base body and the second partial region. The first electrode is fixed to the base body. The second electrode is provided between the first electrode and the first partial region and between the first electrode and the second partial region.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: November 9, 2021
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kei Masunishi, Naofumi Nakamura, Hiroaki Yamazaki, Tomohiro Saito, Fumitaka Ishibashi, Yoshihiko Kurui, Tomohiko Nagata
  • Publication number: 20210175035
    Abstract: According to one embodiment, a MEMS element includes a first member, and an element part. The element part includes a first fixed electrode fixed to the first member, a first movable electrode facing the first fixed electrode, a first conductive member electrically connected to the first movable electrode, and a second conductive member electrically connected to the first movable electrode. The first conductive member and the second conductive member support the first movable electrode to be separated from the first fixed electrode in a first state before a first electrical signal is applied between the second conductive member and the first fixed electrode. The first conductive member and the second conductive member are in a broken state in a second state after the first electrical signal is applied between the second conductive member and the first fixed electrode.
    Type: Application
    Filed: September 10, 2020
    Publication date: June 10, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroaki YAMAZAKI, Kei Masunishi
  • Publication number: 20210047171
    Abstract: According to one embodiment, a MEMS element includes a base body, a supporter, a film part, a first electrode, a second electrode, and an insulating member. The supporter is fixed to the base body. The film part is separated from the base body in a first direction and supported by the supporter. The first electrode is fixed to the base body and provided between the base body and the film part. The second electrode is fixed to the film part and provided between the first electrode and the film part. The insulating member includes a first insulating region and a second insulating region. The first insulating region is provided between the first electrode and the second electrode. A first gap is provided between the first insulating region and the second electrode. The second insulating region does not overlap the first electrode in the first direction.
    Type: Application
    Filed: March 4, 2020
    Publication date: February 18, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Fumitaka ISHIBASHI, Naofumi NAKAMURA, Hiroaki YAMAZAKI, Tomohiro SAITO, Tomohiko NAGATA, Kei MASUNISHI, Yoshihiko KURUI
  • Publication number: 20210041311
    Abstract: According to one embodiment, a pressure sensor includes a base body, a supporter, a film part, a first electrode, and a second electrode. The supporter is fixed to the base body. The film part is separated from the base body. The film part includes first, second, and third partial regions, and a rim portion. The rim portion is supported by the supporter. The second partial region is between the first partial region and the rim portion. The third partial region is between the second partial region and the rim portion. The first electrode is provided between the base body and the first partial region and between the base body and the second partial region. The first electrode is fixed to the base body. The second electrode is provided between the first electrode and the first partial region and between the first electrode and the second partial region.
    Type: Application
    Filed: February 13, 2020
    Publication date: February 11, 2021
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kei MASUNISHI, Naofumi Nakamura, Hiroaki Yamazaki, Tomohiro Saito, Fumitaka Ishibashi, Yoshihiko Kurui, Tomohiko Nagata
  • Patent number: 10908035
    Abstract: According to one embodiment, a pressure sensor is disclosed. The pressure sensor includes a substrate, and a first capacitor element. The first capacitor element includes a lower electrode provided on the substrate, an upper electrode disposed above the lower electrode, and a film provided over the lower electrode and upper electrode. The lower electrode and the upper electrode are between the substrate and the film. An absolute value of an amount of change in an electrostatic capacitance between the lower electrode and the upper electrode with respect to unit change in an ambient temperature of the first capacitor element is substantially zero.
    Type: Grant
    Filed: September 11, 2019
    Date of Patent: February 2, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Kei Masunishi, Naofumi Nakamura, Hiroaki Yamazaki, Tomohiro Saito, Fumitaka Ishibashi, Yoshihiko Kurui, Tomohiko Nagata
  • Patent number: 10788545
    Abstract: According to one embodiment, a sensor includes a supporter, a first film portion, a first sensing element, and a first magnetic portion. The first film portion is supported by the supporter, is deformable, and includes a first fixed end extending along a first fixed end direction. A first sensing element is fixed to the first film portion, and includes a first magnetic layer, a first opposing magnetic layer provided between the first magnetic layer and the first film portion, and a first intermediate layer provided between the first magnetic layer and the first opposing magnetic layer. A direction from the first opposing magnetic layer toward the first magnetic layer is aligned with a first element direction. The first magnetic portion includes a first end portion extending along a first end portion direction tilted with respect to the first fixed end direction, and overlaps a portion of the supporter.
    Type: Grant
    Filed: February 14, 2018
    Date of Patent: September 29, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shotaro Baba, Yoshihiko Fuji, Akiko Yuzawa, Kei Masunishi, Michiko Hara, Shiori Kaji, Tomohiko Nagata, Yoshihiro Higashi, Kazuaki Okamoto
  • Publication number: 20200300717
    Abstract: According to one embodiment, a pressure sensor is disclosed. The pressure sensor includes a substrate, and a first capacitor element. The first capacitor element includes a lower electrode provided on the substrate, an upper electrode disposed above the lower electrode, and a film provided over the lower electrode and upper electrode. The lower electrode and the upper electrode are between the substrate and the film. An absolute value of an amount of change in an electrostatic capacitance between the lower electrode and the upper electrode with respect to unit change in an ambient temperature of the first capacitor element is substantially zero.
    Type: Application
    Filed: September 11, 2019
    Publication date: September 24, 2020
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kei Masunishi, Naofumi Nakamura, Hiroaki Yamazaki, Tomohiro Saito, Fumitaka Ishibashi, Yoshihiko Kurui, Tomohiko Nagata
  • Patent number: 10775197
    Abstract: According to one embodiment, a sensor includes a sensing element portion and a first magnetic portion. The sensing element portion includes a supporter, a deformable film portion supported by the supporter, and a first element including a magnetic layer and being provided at the film portion. The first magnetic portion is separated from the sensing element portion. The first magnetic portion includes a plurality of first holes. A width of one of the plurality of first holes along a second direction is narrower than a length of the sensing element portion along the second direction and wider than a length of the first element along the second direction. The second direction crosses a first direction from the film portion toward the first element.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: September 15, 2020
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Yoshihiko Fuji, Keiju Yamada, Kei Masunishi, Michiko Hara, Yoshihiro Higashi, Kazuaki Oakamoto, Shiori Kaji