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).
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Patent number: 12117600Abstract: A confocal microscope unit according to an embodiment includes: a first subunit which includes a light source, a pinhole plate, and a photodetector; a second subunit which includes a light source, a pinhole plate, and a photodetector; a scan mirror which scans excitation light on a sample and guides fluorescence generated from the sample to the first and second subunits; a scan lens which guides the excitation light and guides the fluorescence to the scan mirror; and a main housing which is attachable to a connection port and to which the scan mirror, the scan lens, and the subunits are fixed, wherein the first subunit includes a dichroic mirror that separates the excitation light and fluorescence handled by the own unit from those handled by the second subunit.Type: GrantFiled: March 26, 2020Date of Patent: October 15, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Jiro Yamashita, Yasuyuki Tanabe, Shunsuke Matsuda, Hirotoshi Terada
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Patent number: 12078789Abstract: A confocal microscope unit according to an embodiment includes: a first subunit which includes a light source, a pinhole plate, and a photodetector; a second subunit which includes a light source, a pinhole plate, and a photodetector; a scan mirror which scans excitation light output from the first and second subunits on a sample via a microscope optical system and guides fluorescence generated from the sample in response to the excitation light and focused by the microscope optical system to the first and second subunits; and a main housing which is attachable to a connection port and to which the scan mirror, the first subunit, and the second subunit are fixed, wherein the first subunit and the second subunit are disposed in the main housing so that incident angles of two excitation lights to the scan mirror are displaced from each other by a predetermined angle.Type: GrantFiled: March 26, 2020Date of Patent: September 3, 2024Assignee: HAMAMATSU PHOTONICS K.K.Inventors: Jiro Yamashita, Yasuyuki Tanabe, Shunsuke Matsuda, Hirotoshi Terada
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Publication number: 20240105275Abstract: 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: ApplicationFiled: September 1, 2023Publication date: March 28, 2024Inventors: Kiyoe YAMASAWA, Yasuyuki MATSUDA
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Patent number: 11915748Abstract: 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: GrantFiled: February 22, 2023Date of Patent: February 27, 2024Assignee: Kioxia CorporationInventors: Noboru Shibata, Yasuyuki Matsuda
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Publication number: 20230206998Abstract: 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: ApplicationFiled: February 22, 2023Publication date: June 29, 2023Applicant: Kioxia CorporationInventors: Noboru SHIBATA, Yasuyuki MATSUDA
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Patent number: 11621039Abstract: 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: GrantFiled: July 27, 2022Date of Patent: April 4, 2023Assignee: Kioxia CorporationInventors: Noboru Shibata, Yasuyuki Matsuda
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Publication number: 20220366973Abstract: 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: ApplicationFiled: July 27, 2022Publication date: November 17, 2022Applicant: Kioxia CorporationInventors: Noboru SHIBATA, Yasuyuki MATSUDA
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Patent number: 11437095Abstract: 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: GrantFiled: January 26, 2021Date of Patent: September 6, 2022Assignee: KIOXIA CORPORATIONInventors: Noboru Shibata, Yasuyuki Matsuda
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Publication number: 20220270691Abstract: 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: ApplicationFiled: August 27, 2021Publication date: August 25, 2022Inventors: Yousuke TAMURA, Yasuyuki MATSUDA
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Patent number: 11305653Abstract: 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: GrantFiled: September 15, 2017Date of Patent: April 19, 2022Assignee: NSK LTD.Inventors: Ryuho Morita, Yasuyuki Matsuda, Mitsuru Oike, Daisuke Gunji, Shin Yamamoto
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Publication number: 20210269083Abstract: 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: ApplicationFiled: July 1, 2019Publication date: September 2, 2021Inventors: Masafumi Hikida, Yasuyuki Matsuda, Ryuho Morita
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Publication number: 20210261186Abstract: 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: ApplicationFiled: July 1, 2019Publication date: August 26, 2021Inventors: Masafumi Hikida, Yasuyuki Matsuda, Ryuho Morita
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Publication number: 20210151099Abstract: 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: ApplicationFiled: January 26, 2021Publication date: May 20, 2021Applicant: TOSHIBA MEMORY CORPORATIONInventors: Noboru SHIBATA, Yasuyuki MATSUDA
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Patent number: 11002311Abstract: 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: GrantFiled: December 15, 2017Date of Patent: May 11, 2021Assignee: NSK LTD.Inventors: Ryuho Morita, Yasuyuki Matsuda, Masafumi Hikida, Eisaku Suzuki, Shunsuke Suzuki, Yoshiya Mukai
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Patent number: 10943651Abstract: 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: GrantFiled: August 1, 2019Date of Patent: March 9, 2021Assignee: TOSHIBA MEMORY CORPORATIONInventors: Noboru Shibata, Yasuyuki Matsuda
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Patent number: 10940751Abstract: 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: GrantFiled: June 5, 2018Date of Patent: March 9, 2021Assignee: NSK LTD.Inventors: Yasuyuki Matsuda, Daisuke Gunji, Shin Yamamoto, Toshirou Toyoda
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Patent number: 10940730Abstract: 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: GrantFiled: October 12, 2018Date of Patent: March 9, 2021Assignee: NSK LTD.Inventors: Hirotaka Kishida, Yasuyuki Matsuda
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Publication number: 20200384848Abstract: 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: ApplicationFiled: June 5, 2018Publication date: December 10, 2020Applicant: Nsk Ltd.Inventors: Yasuyuki MATSUDA, Daisuke GUNJI, Shin YAMAMOTO, Toshirou TOYODA
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Publication number: 20200386301Abstract: 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: ApplicationFiled: July 31, 2018Publication date: December 10, 2020Applicant: NSK LTD.Inventors: Hirotaka KISHIDA, Yuya DAIKOKU, Yasuyuki MATSUDA
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Publication number: 20200378438Abstract: 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: ApplicationFiled: December 15, 2017Publication date: December 3, 2020Applicant: NSK LTD.Inventors: Ryuho MORITA, Yasuyuki MATSUDA, Masafumi HIKIDA, Eisaku SUZUKI, Shunsuke SUZUKI, Yoshiya MUKAI