Patents by Inventor Kazunari Takahashi

Kazunari Takahashi 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: 11950228
    Abstract: A terminal apparatus includes, a first reception unit configured to receive a first synchronization signal with a first subcarrier spacing, a second reception unit configured to receive a second synchronization signal with the first subcarrier spacing, a detection unit configured to detect an identity from the first synchronization signal and/or the second synchronization signal, and a third reception unit configured to receive a first reference signal, based on the identity, with a second subcarrier spacing different from the first subcarrier spacing, wherein, the first reference signal is arranged in a time resource and a frequency resource predetermined for the second subcarrier spacing.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: April 2, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazunari Yokomakura, Shohei Yamada, Hidekazu Tsuboi, Tatsushi Aiba, Hiroki Takahashi
  • Patent number: 11943169
    Abstract: To efficiently transmit CSI. A receiver configured to receive a physical downlink control channel for conveying downlink control information including a first information field and a transmitter configured to report channel state information (CSI) are included, wherein the first information field indicates first information, the first information indicates one of multiple states, each of the multiple states is associated with a configuration related to one or multiple CSI reports and a configuration related to one or multiple CSI resources, and the one of the multiple states is configured to be associated with a first serving cell and a bandwidth part (BWP) of the first serving cell.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: March 26, 2024
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kazunari Yokomakura, Shohei Yamada, Hidekazu Tsuboi, Hiroki Takahashi
  • Publication number: 20230384816
    Abstract: An input device includes an operation shaft extending in a first direction, linearly movable in the first direction, and having a tip portion; a force sensation generator configured to apply a force to the operation shaft; a sensor configured to detect an amount of movement of the operation shaft; a range-of-motion adjuster configured to change a maximum push-in position of the operation shaft; and a range-of-motion adjustment motor configured to operate the range-of-motion adjuster. The range-of-motion adjuster has a contact portion with which the tip portion of the operation shaft comes into contact. The range-of-motion adjuster changes the maximum push-in position of the operation shaft by being operated to change a contact position of the tip portion with respect to the contact portion in the first direction.
    Type: Application
    Filed: August 8, 2023
    Publication date: November 30, 2023
    Inventors: Takashi NAKAI, Kazunari TAKAHASHI, Tatsuhiro TOMIYAMA
  • Patent number: 11810738
    Abstract: An input device includes an manipulating part, a movable member fixed to the manipulating part and having a rotating shaft, a fixing member configured to rotatably support the rotating shaft so that the movable member is rotatable, a flex sensor disposed on the manipulating part and configured to detect flexing of the manipulating part, a switch disposed on the movable member or the fixing member, pressed by a rotating operation of the movable member, and configured to switch between an on state and an off state when a flexing amount of the manipulating part reaches a predetermined amount, and a signal processor configured to output a control signal, based on a first output signal of the flex sensor, and a second output signal of the switch.
    Type: Grant
    Filed: May 28, 2021
    Date of Patent: November 7, 2023
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Tatsuhiro Tomiyama, Takeaki Maehata, Yoshihiro Hashimoto, Yukio Miura, Kazunari Takahashi
  • Publication number: 20230275498
    Abstract: A vibration generating device includes a coil and a magnetic flux source. The magnetic flux source includes a left-hand magnet, a first middle magnet, a second middle magnet, and a right-hand magnet. The coil includes a left-hand coil and a right-hand coil. The left-hand coil and the right-hand coil each include a left-hand wire bundle and a right-hand wire bundle. Magnetic fluxes from the middle magnet passing through, in an up-and-down direction, a space between the right-hand wire bundle of the left-hand coil and the first middle magnet are less than magnetic fluxes from the left-hand magnet that pass through, in the up-and-down direction, a space between the left-hand wire bundle of the left-hand coil and the left-hand magnet.
    Type: Application
    Filed: May 9, 2023
    Publication date: August 31, 2023
    Inventors: Yuki IKEZOE, Takenori TAKAHASHI, Kazunari TAKAHASHI
  • Publication number: 20230275496
    Abstract: A vibration generating device includes: a stationary body; a movable body housed in the stationary body; a guide member configured to guide the movable body so that the movable body is reciprocally movable in the stationary body along a left-and-right direction; a magnetic flux-generating member fixed to the movable body and configured to generate a magnetic flux along an up-and-down direction; a coil fixed to the stationary body to cross the magnetic flux and includes electrically conductive wires extending along a front-and-back direction and being juxtaposed along the left-and-right direction; and a magnetic member fixed to the stationary body and disposed at an outer side of the coil. The magnetic member is disposed to generate an attractive force to attract the movable body located at a position off a center of a movable range of the movable body, to the center of the movable range of the movable body.
    Type: Application
    Filed: May 10, 2023
    Publication date: August 31, 2023
    Inventors: Takenori TAKAHASHI, Kazunari TAKAHASHI, Yuki IKEZOE
  • Patent number: 11604488
    Abstract: An input device includes a fixed unit, a rotary member rotatably supported by the fixed unit, a rotation-detecting unit that detects a rotation angle of the rotary member, a brake-applying unit that applies a braking force to the rotary member, a torque-applying unit that applies a driving torque to the rotary member, and a control unit that controls the brake-applying unit and the torque-applying unit. The brake-applying unit includes magnetorheological fluid, a brake-applying coil that applies a magnetic field to the magnetorheological fluid, a shaft to which braking torque that changes with viscosity of the magnetorheological fluid is applied, and a transmission gear provided on the shaft and that is in mesh with a gear provided on the rotary member. The shaft is positioned on an outer side with respect to the rotary member in a radial direction of the rotary member.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: March 14, 2023
    Inventors: Asuka Koike, Takeaki Maehata, Ryuichiro Yasuhara, Kazunari Takahashi, Atsushi Goto
  • Patent number: 11536332
    Abstract: A torque generation apparatus includes a magnetic disc rotatable about a rotation axis, a first yoke, a second yoke, a magnetic viscous fluid placed between the magnetic disc and the first yoke and the second yoke, a coil, and a third yoke. The coil overlaps with the magnetic disc as viewed along the rotation axis. The third yoke constitutes a magnetic path of a magnetic field generated by the coil together with the first yoke and the second yoke. The magnetic disc includes a torque increasing portion at at least one of a surface facing the first yoke and a surface facing the second yoke. The torque increasing portion is provided in an outer circumferential area of the magnetic disc in a radial direction and causes a shearing force to a cluster of the magnetic viscous fluid to become larger than that in the inner circumferential area.
    Type: Grant
    Filed: November 2, 2020
    Date of Patent: December 27, 2022
    Inventors: Asuka Koike, Misuzu Takahashi, Kazunari Takahashi, Tatsuhiro Tomiyama
  • Patent number: 11532447
    Abstract: An input device includes a first part and a second part configured to move relative to each other according to an input operation, a magnetic viscous fluid whose viscosity changes according to a magnetic field, and a magnetic-field generator that generates the magnetic field applied to the magnetic viscous fluid. The second part includes a first surface and a second surface that are arranged in a direction orthogonal to a direction of relative movement between the first part and the second part. Gaps are formed between the first surface and the first part and between the second surface and the first part, and the magnetic viscous fluid is present in at least a part of the gaps.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: December 20, 2022
    Assignee: KURIMOTO, LTD.
    Inventors: Hiroshi Wakuda, Kazunari Takahashi, Atsushi Goto, Ryuichiro Yasuhara
  • Patent number: 11401984
    Abstract: A torque generating device includes a magnetic disk configured to rotate around a rotation axis, first and second yokes located on opposite sides across the magnetic disk, a coil disposed to overlap the magnetic disk along a direction of the rotation axis, a third yoke of which at least a region proximity to the magnetic disk is located outside the magnetic disk and the coil and that makes up a magnetic path of a magnetic field generated by the coil with the first and second yokes, and a magnetic viscous fluid filled between the magnetic disk and the first and second yokes. The third yoke has a magnetic gap between the third and first yokes. The magnetic gap is formed at a position outside an outer peripheral edge of the magnetic disk or overlapping the outer peripheral edge of the magnetic disk along the direction of the rotation axis.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: August 2, 2022
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Asuka Koike, Kazunari Takahashi, Misuzu Takahashi, Yoshihiro Kuge, Atsushi Goto
  • Patent number: 11397248
    Abstract: Provided is a sensing system that performs set control with high sensing accuracy. The sensing system that outputs an object signal includes a solid-state imaging device that senses a first physical target from an object and a second physical target different from the first physical target, and an arithmetic operation unit that calculates an object signal using a first signal from the first physical target and a second signal from the second physical target. The arithmetic operation unit calculates an object signal using a reference signal from a device mounted with the sensing system.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: July 26, 2022
    Assignee: NUVOTON TECHNOLOGY CORPORATION JAPAN
    Inventors: Junji Ito, Kazunari Takahashi, Kouji Shimomura, Susumu Fukushima
  • Patent number: 11322324
    Abstract: An input device includes a first part and a second part configured to move relative to each other according to an input operation, a magnetic viscous fluid whose viscosity changes according to a magnetic field, and a magnetic-field generator that generates the magnetic field applied to the magnetic viscous fluid. The second part includes a first surface and a second surface that are arranged in a direction orthogonal to a direction of relative movement between the first part and the second part. Gaps are formed between the first surface and the first part and between the second surface and the first part, and the magnetic viscous fluid is present in at least a part of the gaps.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: May 3, 2022
    Assignee: KURIMOTO, LTD.
    Inventors: Hiroshi Wakuda, Kazunari Takahashi, Atsushi Goto, Ryuichiro Yasuhara
  • Patent number: 11287841
    Abstract: An operating device according to the present invention includes magnetic field generation means. The magnetic field generation means includes a coil generating a magnetic field when energized, and a yoke forming a magnetic path for the magnetic field passing through a rotor. A control unit includes magnetization means and rotational torque control means. The magnetization means supplies a current to energize the coil such that a residual magnetic field in the yoke is held at a predetermined magnitude. The rotational torque control means adjusts a current value applied to the coil in accordance with the magnitude of the residual magnetic field in the yoke. An absolute value of a maximum value of the current value applied to the coil by the rotational torque control means is smaller than an absolute value of a current value applied by the magnetization means.
    Type: Grant
    Filed: February 25, 2021
    Date of Patent: March 29, 2022
    Inventors: Asuka Koike, Kazunari Takahashi, Misuzu Takahashi, Atsushi Goto, Ryuichiro Yasuhara
  • Publication number: 20210396280
    Abstract: A torque generation device includes a rotor connected to a shaft and rotatable about a rotary axis of the shaft; an external member disposed outside the rotor and rotatable about the rotary axis relative to the rotor; a magnetically responsive material in a gap between the rotor and external member; a magnetic field generating unit generating a magnetic field passing the magnetically responsive material; and an adjusting unit between the shaft and external member along an outer circumference of the shaft, wherein the adjusting unit has a containing space where an adjusting sealing member is provided, the magnetically responsive material is sealed in the gap, containing space, and path connecting these and in an adjustment space from a position where the adjusting sealing member is provided to the path, and a capacity of the adjustment space is changeable according to a change in volume of the magnetically responsive material.
    Type: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Inventors: Yoshihiro KUGE, Kazunari TAKAHASHI, Misuzu TAKAHASHI
  • Patent number: 11205944
    Abstract: An operating device includes a magnetic disk capable of rotational motion around a rotation axis, a first yoke located on one side and a second yoke located on an other side across the magnetic disk, a coil disposed to overlap the magnetic disk when viewed in a direction along a direction in which the rotation axis extends, a magnetic viscous fluid filled between the magnetic disk and each of the first yoke and the second yoke, a magnetic measurement portion for measuring magnetism caused by a magnetic field using the magnetic viscous fluid, the magnetic disk, the first yoke, and the second yoke as a magnetic path, and a control unit configured to acquire a measured value from the magnetic measurement portion and control a magnetic field that is generated by the coil based on the measured value to change a viscosity of the magnetic viscous fluid.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: December 21, 2021
    Assignee: ALPS ALPINE CO., LTD.
    Inventors: Asuka Koike, Kazunari Takahashi, Atsushi Goto, Yoshihiro Kuge, Misuzu Takahashi
  • Publication number: 20210287862
    Abstract: An input device includes an manipulating part, a movable member fixed to the manipulating part and having a rotating shaft, a fixing member configured to rotatably support the rotating shaft so that the movable member is rotatable, a flex sensor disposed on the manipulating part and configured to detect flexing of the manipulating part, a switch disposed on the movable member or the fixing member, pressed by a rotating operation of the movable member, and configured to switch between an on state and an off state when a flexing amount of the manipulating part reaches a predetermined amount, and a signal processor configured to output a control signal, based on a first output signal of the flex sensor, and a second output signal of the switch.
    Type: Application
    Filed: May 28, 2021
    Publication date: September 16, 2021
    Inventors: Tatsuhiro TOMIYAMA, Takeaki MAEHATA, Yoshihiro HASHIMOTO, Yukio MIURA, Kazunari TAKAHASHI
  • Publication number: 20210207680
    Abstract: A torque generating device includes a rotor, a sealing member, a field generator, a controller, and a functional material. The rotor is rotatable. The sealing member is configured to seal a perimeter of the rotor and form a sealing space. The field generator is disposed outside the sealing member such that the field generator is separable. The field generator is configured to generate an electric or magnetic field passing through the sealing space. The controller is configured to control the field generator to control a magnitude of the electric or magnetic field. The functional material is filled in the sealing space such that the functional material is able to flow to vary torque for the rotation of the rotor in accordance with the magnitude. The sealing member has a support portion configured to support the rotor and is separable from the field generator.
    Type: Application
    Filed: March 24, 2021
    Publication date: July 8, 2021
    Inventors: Yoshihiro KUGE, Kazunari TAKAHASHI, Misuzu TAKAHASHI
  • Publication number: 20210181781
    Abstract: An operating device according to the present invention includes magnetic field generation means. The magnetic field generation means includes a coil generating a magnetic field when energized, and a yoke forming a magnetic path for the magnetic field passing through a rotor. A control unit includes magnetization means and rotational torque control means. The magnetization means supplies a current to energize the coil such that a residual magnetic field in the yoke is held at a predetermined magnitude. The rotational torque control means adjusts a current value applied to the coil in accordance with the magnitude of the residual magnetic field in the yoke. An absolute value of a maximum value of the current value applied to the coil by the rotational torque control means is smaller than an absolute value of a current value applied by the magnetization means.
    Type: Application
    Filed: February 25, 2021
    Publication date: June 17, 2021
    Inventors: Asuka KOIKE, Kazunari TAKAHASHI, Misuzu TAKAHASHI, Atsushi GOTO, Ryuichiro YASUHARA
  • Publication number: 20210079966
    Abstract: A torque generation apparatus includes a magnetic disc rotatable about a rotation axis, a first yoke, a second yoke, a magnetic viscous fluid placed between the magnetic disc and the first yoke and the second yoke, a coil, and a third yoke. The coil overlaps with the magnetic disc as viewed along the rotation axis. The third yoke constitutes a magnetic path of a magnetic field generated by the coil together with the first yoke and the second yoke. The magnetic disc includes a torque increasing portion at at least one of a surface facing the first yoke and a surface facing the second yoke. The torque increasing portion is provided in an outer circumferential area of the magnetic disc in a radial direction and causes a shearing force to a cluster of the magnetic viscous fluid to become larger than that in the inner circumferential area.
    Type: Application
    Filed: November 2, 2020
    Publication date: March 18, 2021
    Inventors: Asuka KOIKE, Misuzu TAKAHASHI, Kazunari TAKAHASHI, Tatsuhiro TOMIYAMA
  • Patent number: 10900535
    Abstract: A manipulation device has a manipulation body rotationally operated by the manipulator, a support body rotatably supporting the manipulation body, and a rotational load imparting mechanism. The rotational load imparting mechanism has a movable member engaged with the rotational axis of the manipulation body, a magnetism generating mechanism facing the movable member with a gap intervening, and a magnetic viscous fluid, its viscosity changing according to the strength of a magnetic field. The magnetism generating mechanism has a coil generating a magnetic field and a first yoke provided so as to enclose the coil. The first yoke has a first opposing part and second opposing part, which are separated by slits, on a side facing the movable member. The magnetic viscous fluid is filled in the gap, which is between the first opposing part and the movable member and between the second opposing part and the movable member.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: January 26, 2021
    Assignee: Alps Alpine Co., Ltd.
    Inventors: Kazunari Takahashi, Atsushi Goto