Patents by Inventor Yasuyuki Matsuda

Yasuyuki Matsuda 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: 20240134177
    Abstract: A scanning microscope unit includes: a light source for outputting irradiation light; a photodetector; a MEMS mirror for scanning an irradiation light over an observation object, and for guiding an observation light toward the photodetector; a scanning lens for guiding the irradiation light scanned by the MEMS mirror, to a microscope optical system, and for guiding the observation light imaged by the microscope optical system, to the MEMS mirror; and a frame member formed in a frame shape to define an opening, and disposed on a side of the microscope optical system with respect to the scanning lens such that the irradiation light and the observation light pass through the opening. The frame member includes a calibration portion provided in a side portion defining the opening, and for generating calibration light including a sensitivity wavelength of the photodetector in response to an incidence of the irradiation light.
    Type: Application
    Filed: January 12, 2022
    Publication date: April 25, 2024
    Applicant: HAMAMATSU PHOTONICS K.K.
    Inventors: Takashi MIHOYA, Yasuyuki TANABE, Shunsuke MATSUDA
  • Publication number: 20240105275
    Abstract: A latch group includes a first latch circuit, a second latch circuit, and a third latch circuit. A clock signal of which a signal value is inverted from a clock signal of the second latch circuit is input to the first latch circuit and the third latch circuit. A control circuit is configured to operate the latch group in a normal mode, and first and second test modes. The control circuit, while operating the latch group in a first test mode, transmits a control signal to the first switch circuit to connect the electrical path between the first data output terminal and the second data input terminal, and while operating the latch group in the second test mode, transmits a control signal to the second switch circuit to connect the electrical path between the second data output terminal and the third data input terminal.
    Type: Application
    Filed: September 1, 2023
    Publication date: March 28, 2024
    Inventors: Kiyoe YAMASAWA, Yasuyuki MATSUDA
  • Patent number: 11915748
    Abstract: According to one embodiment, a memory system includes a semiconductor memory device including a memory cell capable of holding at least 4-bit data and a controller configured to control a first write operation and a second write operation based on the 4-bit data. The controller includes a conversion circuit configured to convert 4-bit data into 2-bit data. The semiconductor memory device includes a recovery controller configured to recover the 4-bit data based on the converted 2-bit data and data written in the memory cell by the first write operation. The first write operation is executed based on the 4-bit data received from the controller, and the second write operation is executed based on the 4-bit data recovered by the recovery controller.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: February 27, 2024
    Assignee: Kioxia Corporation
    Inventors: Noboru Shibata, Yasuyuki Matsuda
  • Publication number: 20230206998
    Abstract: According to one embodiment, a memory system includes a semiconductor memory device including a memory cell capable of holding at least 4-bit data and a controller configured to control a first write operation and a second write operation based on the 4-bit data. The controller includes a conversion circuit configured to convert 4-bit data into 2-bit data. The semiconductor memory device includes a recovery controller configured to recover the 4-bit data based on the converted 2-bit data and data written in the memory cell by the first write operation. The first write operation is executed based on the 4-bit data received from the controller, and the second write operation is executed based on the 4-bit data recovered by the recovery controller.
    Type: Application
    Filed: February 22, 2023
    Publication date: June 29, 2023
    Applicant: Kioxia Corporation
    Inventors: Noboru SHIBATA, Yasuyuki MATSUDA
  • Patent number: 11621039
    Abstract: According to one embodiment, a memory system includes a semiconductor memory device including a memory cell capable of holding at least 4-bit data and a controller configured to control a first write operation and a second write operation based on the 4-bit data. The controller includes a conversion circuit configured to convert 4-bit data into 2-bit data. The semiconductor memory device includes a recovery controller configured to recover the 4-bit data based on the converted 2-bit data and data written in the memory cell by the first write operation. The first write operation is executed based on the 4-bit data received from the controller, and the second write operation is executed based on the 4-bit data recovered by the recovery controller.
    Type: Grant
    Filed: July 27, 2022
    Date of Patent: April 4, 2023
    Assignee: Kioxia Corporation
    Inventors: Noboru Shibata, Yasuyuki Matsuda
  • Publication number: 20220366973
    Abstract: According to one embodiment, a memory system includes a semiconductor memory device including a memory cell capable of holding at least 4-bit data and a controller configured to control a first write operation and a second write operation based on the 4-bit data. The controller includes a conversion circuit configured to convert 4-bit data into 2-bit data. The semiconductor memory device includes a recovery controller configured to recover the 4-bit data based on the converted 2-bit data and data written in the memory cell by the first write operation. The first write operation is executed based on the 4-bit data received from the controller, and the second write operation is executed based on the 4-bit data recovered by the recovery controller.
    Type: Application
    Filed: July 27, 2022
    Publication date: November 17, 2022
    Applicant: Kioxia Corporation
    Inventors: Noboru SHIBATA, Yasuyuki MATSUDA
  • Patent number: 11437095
    Abstract: According to one embodiment, a memory system includes a semiconductor memory device including a memory cell capable of holding at least 4-bit data and a controller configured to control a first write operation and a second write operation based on the 4-bit data. The controller includes a conversion circuit configured to convert 4-bit data into 2-bit data. The semiconductor memory device includes a recovery controller configured to recover the 4-bit data based on the converted 2-bit data and data written in the memory cell by the first write operation. The first write operation is executed based on the 4-bit data received from the controller, and the second write operation is executed based on the 4-bit data recovered by the recovery controller.
    Type: Grant
    Filed: January 26, 2021
    Date of Patent: September 6, 2022
    Assignee: KIOXIA CORPORATION
    Inventors: Noboru Shibata, Yasuyuki Matsuda
  • Publication number: 20220270691
    Abstract: A semiconductor storage device includes a plurality of planes, the planes including a first plane and a second plane, an interface circuit configured to receive and transmit control signals for the planes, and a control circuit configured to control the planes based on the control signals. While a first operation that includes multiple loops of a high voltage operation and a verify operation is being performed by the first plane, the control circuit controls the second plane to perform a second operation during at least one period in which the verify operation is performed by the first plane.
    Type: Application
    Filed: August 27, 2021
    Publication date: August 25, 2022
    Inventors: Yousuke TAMURA, Yasuyuki MATSUDA
  • 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: 20210269083
    Abstract: Provided is a reaction force applying device for a steering wheel that can be configured in a small size. The two-stage gears 3a, 3b have an intermediate shaft 9 arranged so as to be parallel to the steering shaft 1, a first teeth section 10 provided on the intermediate shaft 9 and engaging with the shaft side teeth section 4 of the steering shaft 1, and a second teeth section 11 arranged on a portion on the electric motor 2 side of the intermediate shaft 9 with respect to the first teeth section 10 and engaging with the motor side teeth section 8 of the electric motor 2.
    Type: Application
    Filed: July 1, 2019
    Publication date: September 2, 2021
    Inventors: Masafumi Hikida, Yasuyuki Matsuda, Ryuho Morita
  • Publication number: 20210261186
    Abstract: Provided is a structure that together with being compact, allows a vehicle to be steered even when power is not supplied to a steering device and a turning device. A reduction mechanism 28 for reducing and transmitting the motive power of the reaction force applying motor 6 to a steering shaft 5 is configured by a shaft-side teeth portion 9 of the steering shaft 5, two-stage gears 7a, 7b having a first teeth portion 26 and a second teeth portion 27, and a motor-side teeth portion 19 of the reaction force applying motor 6. A torque transmission mechanism 4 connects the steering shaft 5 and an input shaft 51 of a steering gear unit 49, and is capable of switching between a transmitting mode of mechanically transmitting torque between the steering shaft 5 and the input shaft 51 and a non-transmitting mode.
    Type: Application
    Filed: July 1, 2019
    Publication date: August 26, 2021
    Inventors: Masafumi Hikida, Yasuyuki Matsuda, Ryuho Morita
  • Publication number: 20210151099
    Abstract: According to one embodiment, a memory system includes a semiconductor memory device including a memory cell capable of holding at least 4-bit data and a controller configured to control a first write operation and a second write operation based on the 4-bit data. The controller includes a conversion circuit configured to convert 4-bit data into 2-bit data. The semiconductor memory device includes a recovery controller configured to recover the 4-bit data based on the converted 2-bit data and data written in the memory cell by the first write operation. The first write operation is executed based on the 4-bit data received from the controller, and the second write operation is executed based on the 4-bit data recovered by the recovery controller.
    Type: Application
    Filed: January 26, 2021
    Publication date: May 20, 2021
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Noboru SHIBATA, Yasuyuki MATSUDA
  • Patent number: 11002311
    Abstract: A vehicle weight measurement device includes a diaphragm which covers an opening area of a groove portion of a mounting part to form an oil chamber of a predetermined space together with the groove portion; a pressure sensor which detects a change in pressure of measurement fluid in the oil chamber; a first piston which presses the diaphragm; a second piston which presses the first piston; and a bearing unit interposed between the second piston and a spring bush which receives one end of a spring of a suspension device and is relatively rotatable. The bearing unit includes a thrust needle bearing which swingably supports a load in a longitudinal direction of the suspension device, and a slide bush which does not receive a load in the longitudinal direction and receives a load in a radial direction while causing constant damping to swinging.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: May 11, 2021
    Assignee: NSK LTD.
    Inventors: Ryuho Morita, Yasuyuki Matsuda, Masafumi Hikida, Eisaku Suzuki, Shunsuke Suzuki, Yoshiya Mukai
  • Patent number: 10940730
    Abstract: An extension-retraction link includes: a stationary shaft having a tubular shape; a first universal joint that connects the stationary shaft to a vehicle body side member; a movable shaft that can slide with respect to the stationary shaft; a second universal joint that connects the movable shaft to a hub carrier; and an actuator that moves the movable shaft. The movable shaft includes: a first plane surface; a second plane surface making an angle with respect to the first plane surface; a third plane surface opposite the first plane surface; and a fourth plane surface opposite the second plane surface. The stationary shaft includes: first to fourth bushes in contact with the first to fourth plane surfaces, respectively; a first elastic member pressing the third bush to the third plane surface; and a second elastic member pressing the fourth bush to the fourth plane surface.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: March 9, 2021
    Assignee: NSK LTD.
    Inventors: Hirotaka Kishida, Yasuyuki Matsuda
  • 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
  • Patent number: 10943651
    Abstract: According to one embodiment, a memory system includes a semiconductor memory device including a memory cell capable of holding at least 4-bit data and a controller configured to control a first write operation and a second write operation based on the 4-bit data. The controller includes a conversion circuit configured to convert 4-bit data into 2-bit data. The semiconductor memory device includes a recovery controller configured to recover the 4-bit data based on the converted 2-bit data and data written in the memory cell by the first write operation. The first write operation is executed based on the 4-bit data received from the controller, and the second write operation is executed based on the 4-bit data recovered by the recovery controller.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: March 9, 2021
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Noboru Shibata, Yasuyuki Matsuda
  • Publication number: 20200386301
    Abstract: A reduction gear includes: a first bearing that is mounted on a supporting member; an output member that is supported by the first bearing and rotates about a first rotation axis; an internal gear that is coupled to the output member and rotates about the first rotation axis together with the output member; a second bearing that is mounted on the supporting member on an outer side relative to the first bearing in a radial direction; and a pinion gear that is supported by the second bearing, rotates about a second rotation axis different from the first rotation axis, and is engaged with the internal gear.
    Type: Application
    Filed: July 31, 2018
    Publication date: December 10, 2020
    Applicant: NSK LTD.
    Inventors: Hirotaka KISHIDA, Yuya DAIKOKU, Yasuyuki MATSUDA
  • 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
  • Publication number: 20200378438
    Abstract: A vehicle weight measurement device includes a diaphragm which covers an opening area of a groove portion of a mounting part to form an oil chamber of a predetermined space together with the groove portion; a pressure sensor which detects a change in pressure of measurement fluid in the oil chamber; a first piston which presses the diaphragm; a second piston which presses the first piston; and a bearing unit interposed between the second piston and a spring bush which receives one end of a spring of a suspension device and is relatively rotatable. The bearing unit includes a thrust needle bearing which swingably supports a load in a longitudinal direction of the suspension device, and a slide bush which does not receive a load in the longitudinal direction and receives a load in a radial direction while causing constant damping to swinging.
    Type: Application
    Filed: December 15, 2017
    Publication date: December 3, 2020
    Applicant: NSK LTD.
    Inventors: Ryuho MORITA, Yasuyuki MATSUDA, Masafumi HIKIDA, Eisaku SUZUKI, Shunsuke SUZUKI, Yoshiya MUKAI
  • Publication number: 20200238776
    Abstract: An extension-retraction link includes: a stationary shaft having a tubular shape; a first universal joint that connects the stationary shaft to a vehicle body side member; a movable shaft that can slide with respect to the stationary shaft; a second universal joint that connects the movable shaft to a hub carrier; and an actuator that moves the movable shaft. The movable shaft includes: a first plane surface; a second plane surface making an angle with respect to the first plane surface; a third plane surface opposite the first plane surface; and a fourth plane surface opposite the second plane surface. The stationary shaft includes: first to fourth bushes in contact with the first to fourth plane surfaces, respectively; a first elastic member pressing the third bush to the third plane surface; and a second elastic member pressing the fourth bush to the fourth plane surface.
    Type: Application
    Filed: October 12, 2018
    Publication date: July 30, 2020
    Applicant: NSK LTD.
    Inventors: Hirotaka KISHIDA, Yasuyuki MATSUDA