Patents by Inventor Daisuke Gunji

Daisuke Gunji 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: 12105069
    Abstract: A liquid sending failure detector acquires periodically a liquid sending pressure of a liquid sending mechanism consecutively sends liquid using at least one plunger pump that sends liquid by reciprocally driving a plunger such that a fluctuation is read in one driving period of the liquid sending mechanism, and detect a liquid sending failure of the liquid sending mechanism using an acquired liquid sending pressure. The liquid sending failure detector executes a pulsation detection step of obtaining a fluctuation range of the liquid sending pressure in a certain driving period of the liquid sending mechanism and detecting pulsation on a condition that a count of consecutive periods in which the fluctuation range exceeds a predetermined reference value exceeds a predetermined reference count, and a liquid sending failure detection step of detecting a liquid sending failure of the liquid sending mechanism when the pulsation is detected in the pulsation detection step.
    Type: Grant
    Filed: October 16, 2019
    Date of Patent: October 1, 2024
    Assignee: SHIMADZU CORPORATION
    Inventors: Tomohiro Gomi, Daisuke Kitabayashi, Shinya Imamura, Keisuke Ogawa, Masataka Nikko, Masahide Gunji
  • Patent number: 11718387
    Abstract: A propellant force generator is provided having the size in the axial direction of a rotational shaft of a motor reduced while making the pitch angles of rotational blades driven by the motor variable. The propellant force generator includes a propellant-force generating motor adapted to generate a propellant force for rotational blades, a pitch varying motor adapted to generate a rotational motion for changing pitch angles of the rotational blades, a rotation-linear motion converting unit adapted to convert the rotational motion generated by the pitch varying motor into a linear motion, and a linear motion-rotation converting unit adapted to convert the linear motions converted by the rotation-linear motion converting unit into rotational motions. At least a part of the linear motion-rotation converting unit is located within the propellant-force generating motor.
    Type: Grant
    Filed: March 17, 2021
    Date of Patent: August 8, 2023
    Inventors: Hiroyasu Kumagai, Daisuke Gunji
  • Publication number: 20230086747
    Abstract: A wireless power reception system 1 includes: a power reception device 5 including a power reception coil 51 that receives power supplied wirelessly from a power transmission coil 41 of a power transmission device 4 installed in a road surface, at least a portion of the power reception coil 51 being housed in a wheel 3 of a moving body 2; and an onboard device 6 which is installed in the moving body 2 and which is electrically connected to the power reception device 5, wherein the power reception device 5 can transmit received power to the onboard device 6, and the power reception coil 51 includes a stacked plurality of spiral coil layers 52a and 52b.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 23, 2023
    Applicants: THE UNIVERSITY OF TOKYO, BRIDGESTONE CORPORATION, NSK Ltd.
    Inventors: Hiroshi FUJIMOTO, Osamu SHIMIZU, Keizo AKUTAGAWA, Yasumichi WAKAO, Isao KUWAYAMA, Daisuke GUNJI
  • Publication number: 20230090157
    Abstract: A wireless power reception system 1 includes: a power reception device 5 including a power reception coil 51 that receives power supplied wirelessly from a power transmission coil 41 of a power transmission device 4 installed in a road surface, at least a portion of the power reception coil 51 being housed in a wheel 3 of a moving body 2; and an onboard device 6 which is installed in the moving body 2 and which is electrically connected to the power reception device 5, wherein the power reception device 5 can transmit received power to the onboard device 6, and the power reception coil 51 has a convex shape pointing downward in a side view as seen from an axial direction of the wheel 3.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 23, 2023
    Applicants: THE UNIVERSITY OF TOKYO, BRIDGESTONE CORPORATION, NSK Ltd.
    Inventors: Hiroshi FUJIMOTO, Osamu SHIMIZU, Keizo AKUTAGAWA, Yasumichi WAKAO, Isao KUWAYAMA, Daisuke GUNJI
  • Publication number: 20230088378
    Abstract: A wireless power transfer system 1 includes a power transmission device 2 and a power reception device 3. The power transmission device 2 is a power transmission device 2 installed in a road 4, is provided with a power transmission coil 21 that transmits power wirelessly, and is configured such that when installed in the road 4, the normal line of a coil plane of the power transmission coil 21 is inclined with respect to the normal line of the road surface of the road 4 in a lateral cross section of the road 4. The power reception device 3 is provided with a power reception coil 31 that receives power wirelessly, and at least a portion of the power reception coil 31 is housed in the wheel 6 of the moving body 5.
    Type: Application
    Filed: September 10, 2020
    Publication date: March 23, 2023
    Applicants: THE UNIVERSITY OF TOKYO, BRIDGESTONE CORPORATION, NSK Ltd.
    Inventors: Hiroshi FUJIMOTO, Osamu SHIMIZU, Keizo AKUTAGAWA, Yasumichi WAKAO, Isao KUWAYAMA, Daisuke GUNJI
  • Patent number: 11599993
    Abstract: At least one processor of an apparatus functions as a generation unit that identifies at least an outer edge of a specific region in a surface layer of an object and that generates outer edge candidates, and a control unit that selects an outer edge candidate based on an instruction from a user among the generated outer edge candidates.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: March 7, 2023
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Daisuke Gunji, Tomonobu Hiraishi
  • Publication number: 20220416580
    Abstract: A wireless power reception system 1 includes: a power reception device 5 including a power reception coil 51 that receives power supplied wirelessly from a power transmission coil 41 of a power transmission device 4 installed in a road surface, at least a portion of the power reception coil 51 being housed in a wheel 3 of a moving body 2; and a driving device 61 which is installed in the wheel 3 and which drives the wheel 3 with power received by the power reception device 5, wherein the power reception device 5 is provided with a converter 56a and an inverter 56b, at least a portion of the converter 56a and at least a portion of the inverter 56b are housed in the wheel 3, the converter 56a is positioned vertically above the power reception coil 51, and the inverter 56b is positioned vertically above the converter 56a.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 29, 2022
    Applicants: THE UNIVERSITY OF TOKYO, BRIDGESTONE CORPORATION, NSK Ltd.
    Inventors: Hiroshi FUJIMOTO, Osamu SHIMIZU, Keizo AKUTAGAWA, Yasumichi WAKAO, Isao KUWAYAMA, Daisuke GUNJI
  • Publication number: 20220411045
    Abstract: A propellant force generator is provided having the size in the axial direction of a rotational shaft of a motor reduced while making the pitch angles of rotational blades driven by the motor variable. The propellant force generator includes a propellant-force generating motor adapted to generate a propellant force for rotational blades, a pitch varying motor adapted to generate a rotational motion for changing pitch angles of the rotational blades, a rotation-linear motion converting unit adapted to convert the rotational motion generated by the pitch varying motor into a linear motion, and a linear motion-rotation converting unit adapted to convert the linear motions converted by the rotation-linear motion converting unit into rotational motions. At least a part of the linear motion-rotation converting unit is located within the propellant-force generating motor.
    Type: Application
    Filed: March 17, 2021
    Publication date: December 29, 2022
    Inventors: Hiroyasu KUMAGAI, Daisuke GUNJI
  • Patent number: 11478936
    Abstract: An image processing apparatus capable of simplifying operations for determining an image pickup posture of an image pickup apparatus attached to a robot. The image processing apparatus processes an image that an image pickup apparatus attached to a robot picks up. The image processing apparatus includes a memory device that stores a set of instructions, and at least one processor that executes the set of instructions to specify a working area of the robot based on teaching point information showing a plurality of designated teaching points, specify an image pickup area of the image pickup apparatus so as to include the specified working area; and determine an image pickup posture of the robot based on the specified image pickup area.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: October 25, 2022
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Naoki Tsukabe, Hiroto Oka, Daisuke Gunji
  • Publication number: 20220266702
    Abstract: A wireless power receiving system includes: a power receiving device having a power receiving coil configured to receive electric power supplied wirelessly from a power transmission coil of a power transmission device installed on a road surface, at least part of the power receiving coil being contained in a vehicle wheel; and in-vehicle devices installed in a mobile object, the in-vehicle devices being energizably connected to the power receiving device. The power receiving device transmits the received electric power to the in-vehicle devices.
    Type: Application
    Filed: July 22, 2020
    Publication date: August 25, 2022
    Applicants: THE UNIVERSITY OF TOKYO, BRIDGESTONE CORPORATION, NSK Ltd.
    Inventors: Hiroshi FUJIMOTO, Takehiro IMURA, Osamu SHIMIZU, Katsuhiro HATA, Keizo AKUTAGAWA, Yasumichi WAKAO, Isao KUWAYAMA, Daisuke GUNJI
  • Patent number: 11421736
    Abstract: A rolling bearing unit includes: an inner ring member having a recess on a first side in an axial direction, the recess being recessed toward a second side in the axial direction; an outer ring member disposed on the outer periphery side of the inner ring member; a rolling body disposed between the inner ring member and the outer ring member and rotatably supporting the inner ring member with respect to the outer ring member; a transmitter capable of transmitting at least one of electric power or a signal, at least a part of the transmitter being accommodated inside the recess of the inner ring member; and a covering member that is supported by the first side of the outer ring member in the axial direction, covers the first side of the inner ring member in the axial direction, and fixes the transmitter.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: August 23, 2022
    Assignee: NSK LTD.
    Inventors: Naohiro Hitomi, Daisuke Gunji, Hiroyasu Kumagai, Ricardo Rodriguez Lopez
  • Patent number: 11365764
    Abstract: A rolling bearing unit includes: an inner ring member having a recess on a first side in an axial direction along a rotation axis, which is recessed toward a second side in the axial direction; an outer ring member on an outer peripheral side of the inner ring member; a rolling body between the inner ring member and the outer ring member; a non-contact transmitter using electric field coupling capable of transmitting at least one of an electric power or a signal and including a stationary-side transmission part including a stationary-side electrode and a rotary-side transmission part including a rotary-side electrode facing the stationary-side electrode; and a covering member supported by the first side of the outer ring member in the axial direction, covering the first side of the inner ring member in the axial direction, and fixing the stationary-side transmission part to the first side in the axial direction.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: June 21, 2022
    Assignee: NSK LTD.
    Inventors: Daisuke Gunji, Hiroyasu Kumagai, Naohiro Hitomi, Ricardo Rodriguez Lopez
  • Patent number: 11305653
    Abstract: An electric vehicle drive device includes: a first motor; a second motor; a transmission mechanism coupled to the first motor and the second motor; and a control unit configured to control operation of the first motor and the second motor based on a drive signal. The transmission mechanism includes: a sun gear shaft coupled to the first motor; a first planetary gear mechanism; a second planetary gear mechanism; and a one-way clutch configured to restrict a rotation direction of a first carrier to a predetermined positive rotation direction. The drive signal includes gear change information indicating a first state in which the second motor is controlled based on torque or a second state in which the second motor is controlled based on rotation speed, and throttle information indicating an acceleration of rotation speed of a wheel.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: April 19, 2022
    Assignee: NSK LTD.
    Inventors: Ryuho Morita, Yasuyuki Matsuda, Mitsuru Oike, Daisuke Gunji, Shin Yamamoto
  • Publication number: 20210364043
    Abstract: A rolling bearing unit includes: an inner ring member having a recess on a first side in an axial direction, the recess being recessed toward a second side in the axial direction; an outer ring member disposed on the outer periphery side of the inner ring member; a rolling body disposed between the inner ring member and the outer ring member and rotatably supporting the inner ring member with respect to the outer ring member; a transmitter capable of transmitting at least one of electric power or a signal, at least a part of the transmitter being accommodated inside the recess of the inner ring member; and a covering member that is supported by the first side of the outer ring member in the axial direction, covers the first side of the inner ring member in the axial direction, and fixes the transmitter.
    Type: Application
    Filed: July 3, 2019
    Publication date: November 25, 2021
    Applicant: NSK LTD.
    Inventors: Naohiro HITOMI, Daisuke GUNJI, Hiroyasu KUMAGAI, Ricardo RODRIGUEZ LOPEZ
  • Publication number: 20210254661
    Abstract: A rolling bearing unit includes: an inner ring member having a recess on a first side in an axial direction along a rotation axis, which is recessed toward a second side in the axial direction; an outer ring member on an outer peripheral side of the inner ring member; a rolling body between the inner ring member and the outer ring member; a non-contact transmitter using electric field coupling capable of transmitting at least one of an electric power or a signal and including a stationary-side transmission part including a stationary-side electrode and a rotary-side transmission part including a rotary-side electrode facing the stationary-side electrode; and a covering member supported by the first side of the outer ring member in the axial direction, covering the first side of the inner ring member in the axial direction, and fixing the stationary-side transmission part to the first side in the axial direction.
    Type: Application
    Filed: July 22, 2019
    Publication date: August 19, 2021
    Applicant: NSK LTD.
    Inventors: Daisuke GUNJI, Hiroyasu KUMAGAI, Naohiro HITOMI, Ricardo RODRIGUEZ LOPEZ
  • Publication number: 20210107161
    Abstract: An image processing apparatus capable of simplifying operations for determining an image pickup posture of an image pickup apparatus attached to a robot. The image processing apparatus processes an image that an image pickup apparatus attached to a robot picks up. The image processing apparatus includes a memory device that stores a set of instructions, and at least one processor that executes the set of instructions to specify a working area of the robot based on teaching point information showing a plurality of designated teaching points, specify an image pickup area of the image pickup apparatus so as to include the specified working area; and determine an image pickup posture of the robot based on the specified image pickup area.
    Type: Application
    Filed: October 6, 2020
    Publication date: April 15, 2021
    Inventors: Naoki Tsukabe, Hiroto Oka, Daisuke Gunji
  • Patent number: 10940751
    Abstract: An electric vehicle driving device includes a first motor, a second motor, a transmission device to which power of at least one of the first motor and the second motor is transmitted, and an output member that rotates with power output from the transmission device. A rotation axis of the first motor, a rotation axis of the second motor, and a rotation axis of the transmission device are arranged in parallel to a rotation axis of the output member. When seen from an axial direction parallel to the rotation axis of the output member, the rotation axis of the first motor is located on one side of a straight line passing through the rotation axis of the output member and the rotation axis of the transmission device and the rotation axis of the second motor is located on the other side of the straight line.
    Type: Grant
    Filed: June 5, 2018
    Date of Patent: March 9, 2021
    Assignee: NSK LTD.
    Inventors: Yasuyuki Matsuda, Daisuke Gunji, Shin Yamamoto, Toshirou Toyoda
  • Publication number: 20200384848
    Abstract: An electric vehicle driving device includes a first motor, a second motor, a transmission device to which power of at least one of the first motor and the second motor is transmitted, and an output member that rotates with power output from the transmission device. A rotation axis of the first motor, a rotation axis of the second motor, and a rotation axis of the transmission device are arranged in parallel to a rotation axis of the output member. When seen from an axial direction parallel to the rotation axis of the output member, the rotation axis of the first motor is located on one side of a straight line passing through the rotation axis of the output member and the rotation axis of the transmission device and the rotation axis of the second motor is located on the other side of the straight line.
    Type: Application
    Filed: June 5, 2018
    Publication date: December 10, 2020
    Applicant: Nsk Ltd.
    Inventors: Yasuyuki MATSUDA, Daisuke GUNJI, Shin YAMAMOTO, Toshirou TOYODA
  • Patent number: 10839198
    Abstract: There are provided an object recognition unit of recognizing a target object in sequentially acquired images, a tracking unit of performing tracking on the sequentially acquired images for the recognized target object, and a storage controller of controlling so as to store in a first storage device the sequentially acquired images. The tracking unit further performs tracking for the target object on stored images, that are acquired before the target object is recognized by the object recognition unit in the sequentially acquired images, and are stored in the first storage device. The storage controller controls so as to store in a second storage device different from the first storage device, images in which the target object is tracked by the tracking unit of the sequentially acquired images, and images in which the target object is tracked by the tracking unit of the stored images.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: November 17, 2020
    Assignee: CANON KABUSHIKI KAISHA
    Inventor: Daisuke Gunji
  • Patent number: 10829155
    Abstract: A suspension operation system includes: a suspension that includes a plurality of links supporting a wheel, at least one or more of the links having an actuator increasing or decreasing its length in an axial direction; a control device that supplies a drive signal to the actuator to control operation of the suspension; and a suspension operation terminal that operates the suspension. The suspension operation terminal includes: a detector that detects operation input information to the suspension operation terminal; and a communicator that transmits information about a target posture of the wheel, the information being based on the operation input information, to the control device as an operation command. The control device includes: a first calculator that calculates the length of the actuator on the basis of the operation command; and a drive circuit that produces the drive signal on the basis of information from the first calculator.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: November 10, 2020
    Assignee: NSK LTD.
    Inventors: Daisuke Gunji, Hiroyasu Kumagai