Patents by Inventor Yutaka Shimizu

Yutaka Shimizu 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: 10976419
    Abstract: A distance measuring device includes a calculating section configured to calculate, based on phase information acquired by a first device and a second device, at least one of which is movable, a distance between the first device and the second device. The first device includes a first reference signal source and a first transceiver configured to transmit two or more first carrier signals and receives two or more second carrier signals using an output of the first reference signal source. The second device includes a second reference signal source configured to operate independently from the first reference signal source and a second transceiver configured to transmit the second carrier signals and receives the first carrier signals using an output of the second reference signal source. The calculating section calculates the distance based on a phase detection result obtained by reception of the first and second carrier signals.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: April 13, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Shoji Ootaka, Yutaka Shimizu, Ichiro Seto, Yoshiharu Nito, Masaki Nishikawa, Takayuki Kato, Shigeyasu Iwata, Katsuya Nonin
  • Publication number: 20210090633
    Abstract: According to one embodiment, a semiconductor memory device includes a plurality of memory cells connected to a word line, a circuit configured to apply a voltage to the word line, a detection circuit configured to detect a first time difference from when a first signal of which a voltage is increased with a first slope is applied to the word line to when a current flows through the memory cells in response to applying the first signal, and a second time difference from when a second signal of which a voltage is increased with a second slope is applied to the word line to when a current flows through the memory cells in response to applying the second signal, the second slope being different from the first slope, and a determination circuit configured to determine a threshold voltage of the memory cells based on a difference between the first time difference and the second time difference.
    Type: Application
    Filed: February 27, 2020
    Publication date: March 25, 2021
    Applicant: KIOXIA CORPORATION
    Inventors: Rui ITO, Makoto MORIMOTO, Yutaka SHIMIZU, Ryuichi FUJIMOTO
  • Publication number: 20200377647
    Abstract: A resin composition including a main agent containing an epoxy compound, a curing agent, and inorganic particles, the curing agent includes an aromatic compound in which a ratio of the number of carbon atoms constituting an aromatic ring to a total number of carbon atoms in one molecule is 85% or more, a content of the inorganic particles is 40 to 75 vol % based on a total amount of components other than a solvent, the inorganic particles include boron nitride particles and particles different from the boron nitride particles, and a content of the boron nitride particles is 3 to 35 vol % based on a total amount of components other than a solvent.
    Type: Application
    Filed: March 13, 2018
    Publication date: December 3, 2020
    Applicant: TDK CORPORATION
    Inventors: Keiji ENOMOTO, Masaaki YAMASHITA, Hiroshi SHUTOH, Tsuyoshi SUGIYAMA, Tomoyuki HARAI, Yutaka SHIMIZU
  • Patent number: 10837547
    Abstract: An oil pressure control device has a mechanical oil pump (O/P) driven by a motor/generator (MG), an electric oil pump (M/O/P) driven by a sub motor (S/M) and a line pressure regulating valve (104). In a case where a state is changed from a state in which the motor/generator (MG) is stopped and the electric oil pump (M/O/P) is driven to a state in which the motor/generator (MG) is started and the electric oil pump (M/O/P) is stopped, when a total flow amount of a working fluid discharge flow amount of the mechanical oil pump (O/P) and a working fluid discharge flow amount of the electric oil pump (M/O/P) is equal to or greater than a pressure regulation limit flow amount of the pressure regulating valve (104), the working fluid discharge flow amount of the electric oil pump (M/O/P) is decreased.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: November 17, 2020
    Assignee: JATCO LTD
    Inventors: Yutaka Shimizu, Shusaku Katakura, Yusuke Ota, Tomoyuki Koike, Yukiyoshi Inuta, Youko Yoshioka
  • Publication number: 20200284888
    Abstract: A distance measuring device includes a calculating section that calculates, based on phase information acquired by a first device and a second device, at least one of which is movable, a distance between the first device and the second device. The first device includes a first transceiver that transmits three or more first carrier signals and receives three or more second carrier signals using an output of a first reference signal source. The second device includes a second transceiver that transmits the three or more second carrier signals and receives the three or more first carrier signals using an output of a second reference signal source. The calculating section calculates the distance based on a phase detection result obtained by reception of the first and second carrier signals and corrects the calculated distance based on information concerning an amplitude ratio of the first carrier signals received by the second transceiver.
    Type: Application
    Filed: May 26, 2020
    Publication date: September 10, 2020
    Inventors: Yutaka Shimizu, Shoji Ootaka, Ichiro Seto, Katsuya Nonin
  • Publication number: 20200238974
    Abstract: A control device for a vehicle having a drive shaft, an engagement element, an engine connected to the drive shaft via the engagement element, and an electric motor connected to the drive shaft not via the engagement element includes a control portion adapted to stop the engine after a maintaining period in which the engine is maintained at predetermined rotation speed during travel of the vehicle. The a control portion gradually decreases an engagement volume of the engagement element while gradually increasing a power generation load of the electric motor during the maintaining period to disengage the engagement element, and stops the engine after disengagement of the engagement element.
    Type: Application
    Filed: July 27, 2018
    Publication date: July 30, 2020
    Applicants: JATCO Ltd, NISSAN MOTOR CO., LTD.
    Inventors: Yutaka SHIMIZU, Masayoshi NAKASAKI
  • Patent number: 10712435
    Abstract: A distance measuring device includes a calculating section that calculates, based on phase information acquired by a first device and a second device, at least one of which is movable, a distance between the first device and the second device. The first device includes a first transceiver that transmits three or more first carrier signals and receives three or more second carrier signals using an output of a first reference signal source. The second device includes a second transceiver that transmits the three or more second carrier signals and receives the three or more first carrier signals using an output of a second reference signal source. The calculating section calculates the distance based on a phase detection result obtained by reception of the first and second carrier signals and corrects the calculated distance based on information concerning an amplitude ratio of the first carrier signals received by the second transceiver.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: July 14, 2020
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yutaka Shimizu, Shoji Ootaka, Ichiro Seto, Katsuya Nonin
  • Patent number: 10697452
    Abstract: An oil pressure control device for a vehicle is configured such that, when switching from an oil pressure supply by means of a mechanical oil pump driven by a motor/generator to an oil pressure supply by means of an electric oil pump driven by a sub-motor, a supply ratio of oil supplied from the mechanical oil pump and a supply ratio of oil supplied from the electric oil pump, are adjusted based on an oil pressure difference between a first oil pressure and a second oil pressure, via first and second flapper valves. When the first oil pressure becomes less than or equal to a pump drive threshold, an increase in the second oil pressure is initiated, and the first oil pressure and the second oil pressure are made to match at a predetermined equilibrium oil pressure higher than a required line pressure.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: June 30, 2020
    Assignee: JATCO LTD
    Inventors: Yutaka Shimizu, Shusaku Katakura, Yusuke Ota, Youko Yoshioka, Yukiyoshi Inuta, Tomoyuki Koike
  • Patent number: 10666466
    Abstract: A semiconductor integrated circuit includes a pair of differential signal lines including first and second signal lines, a first comparator, and a second comparator. The first comparator is configured to output at least one of a first signal corresponding to a difference between a potential of a first input node and a potential of a second input node, and a second signal corresponding to a difference between a potential of a third input node and a potential of a fourth input node. The second comparator is configured to output at least one of a third signal corresponding to a difference between a potential of a fifth input node and a potential of a seventh input node, and a fourth signal corresponding to a difference between a potential of a sixth input node and a potential of a eighth input node.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: May 26, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Yuji Satoh, Yutaka Shimizu
  • Patent number: 10615956
    Abstract: A clock and data recovery device includes an extraction circuit and a phase detection circuit. The extraction circuit extracts transition information including data information corresponding to a value of data and edge information corresponding to transition of the value of the data, from a multivalued input data signal subjected to pulse amplitude modulation in synchronization with a clock from an oscillator. The phase detection circuit uses transition information selected based on a predetermined condition, when executing a phase error determination of the clock with respect to the input data signal based on the transition information extracted by the extraction circuit.
    Type: Grant
    Filed: August 30, 2018
    Date of Patent: April 7, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Hiroyuki Kobayashi, Yutaka Shimizu
  • Publication number: 20200092143
    Abstract: A semiconductor integrated circuit includes a pair of differential signal lines including first and second signal lines, a first comparator, and a second comparator. The first comparator is configured to output at least one of a first signal corresponding to a difference between a potential of a first input node and a potential of a second input node, and a second signal corresponding to a difference between a potential of a third input node and a potential of a fourth input node. The second comparator is configured to output at least one of a third signal corresponding to a difference between a potential of a fifth input node and a potential of a seventh input node, and a fourth signal corresponding to a difference between a potential of a sixth input node and a potential of a eighth input node.
    Type: Application
    Filed: February 26, 2019
    Publication date: March 19, 2020
    Inventors: Yuji SATOH, Yutaka SHIMIZU
  • Patent number: 10576965
    Abstract: A vehicle is provided with a mechanical oil pump (O/P) that is driven by a motor/generator (MG), an electric oil pump (M/O/P) that is driven by a sub-motor (S/M) and a second clutch (CL2) that transmits the drive force of the motor/generator (MG) to left and right drive wheels (LT, RT). When an accelerator pedal is depressed while a brake pedal is still depressed, an integrated controller (10) drives the electric oil pump (M/O/P) before the brake pedal is released, and oil pressure supplied to the second clutch (CL2) is increased.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: March 3, 2020
    Assignee: JATCO LTD
    Inventors: Shusaku Katakura, Yutaka Shimizu, Tomoyuki Koike, Yukiyoshi Inuta, Youko Yoshioka
  • Patent number: 10560292
    Abstract: A transmission apparatus includes a waveform processing circuit. The waveform processing circuit is configured to receive a modulated signal indicating each of values of pulses by one of four signal levels including first, second, third, and fourth signal levels ascending in this order. The waveform processing circuit is configured to output a signal corresponding to the modulated signal. A portion of the output signal corresponding to a portion of the modulated signal that transitions between the first and fourth signal levels, transitions between a first adjusted signal level different from the first signal level and a second adjusted signal level different from the fourth signal level. The transmission apparatus is configured to transmit a signal corresponding to the signal output from the waveform processing circuit through a wired communication path.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: February 11, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventor: Yutaka Shimizu
  • Publication number: 20190288831
    Abstract: A clock and data recovery device includes an extraction circuit and a phase detection circuit. The extraction circuit extracts transition information including data information corresponding to a value of data and edge information corresponding to transition of the value of the data, from a multivalued input data signal subjected to pulse amplitude modulation in synchronization with a clock from an oscillator. The phase detection circuit uses transition information selected based on a predetermined condition, when executing a phase error determination of the clock with respect to the input data signal based on the transition information extracted by the extraction circuit.
    Type: Application
    Filed: August 30, 2018
    Publication date: September 19, 2019
    Inventors: Hiroyuki KOBAYASHI, Yutaka SHIMIZU
  • Patent number: 10309528
    Abstract: The present invention is configured such that: in a stopped state of an electric oil pump (M/O/P), control of the electric oil pump (M/O/P) is started such that, when a driver has the intention of demanding drive force, a discharge pressure takes on a target hydraulic pressure (PTh) determined in accordance with the demanded drive force from the driver; and a pressure regulation target value of a line pressure regulation valve (101) is set to a value that is higher than or equal to the target hydraulic pressure (PTh). Thus, it is possible to provide a vehicular hydraulic control device capable of suppressing hunting in line pressure (PL) when the line pressure (PL) is regulated so as to take on the target hydraulic pressure (PTh).
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: June 4, 2019
    Assignee: JATCO LTD
    Inventors: Shusaku Katakura, Yutaka Shimizu, Yusuke Ota, Keiichi Nakao, Shintaro Ohshio, Hirotaka Suzuki
  • Patent number: 10309526
    Abstract: A hydraulic control device includes: a mechanical oil pump (O/P) that is driven by a motor/generator (M/G) and that generates a first hydraulic pressure (P1); an electric oil pump (M/O/P) that is driven by a sub-motor (S/M) and that generates a second hydraulic pressure (P2); and a controller (10). When a demanded drive force from a driver is generated while in a low-vehicle-speed region which is lower than a first vehicle speed (V1) at which the output of the mechanical oil pump (O/P) becomes unstable, the controller (10) controls the electric oil pump (M/O/P) such that the second hydraulic pressure (P2) becomes larger than a compensative hydraulic pressure (P?) found by subtracting the first hydraulic pressure (P1) from a necessary hydraulic pressure (Pne) determined in accordance with the demanded drive force.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: June 4, 2019
    Assignee: JATCO LTD
    Inventors: Shusaku Katakura, Yutaka Shimizu, Youko Yoshioka, Yukiyoshi Inuta, Tomoyuki Koike
  • Publication number: 20180267154
    Abstract: A distance measuring device includes a calculating section configured to calculate, based on phase information acquired by a first device and a second device, at least one of which is movable, a distance between the first device and the second device. The first device includes a first reference signal source and a first transceiver configured to transmit two or more first carrier signals and receives two or more second carrier signals using an output of the first reference signal source. The second device includes a second reference signal source configured to operate independently from the first reference signal source and a second transceiver configured to transmit the second carrier signals and receives the first carrier signals using an output of the second reference signal source. The calculating section calculates the distance based on a phase detection result obtained by reception of the first and second carrier signals.
    Type: Application
    Filed: September 15, 2017
    Publication date: September 20, 2018
    Inventors: Shoji Ootaka, Yutaka Shimizu, Ichiro Seto, Yoshiharu Nito, Masaki Nishikawa, Takayuki Kato, Shigeyasu Iwata, Katsuya Nonin
  • Publication number: 20180267155
    Abstract: A distance measuring device includes a calculating section that calculates, based on phase information acquired by a first device and a second device, at least one of which is movable, a distance between the first device and the second device. The first device includes a first transceiver that transmits three or more first carrier signals and receives three or more second carrier signals using an output of a first reference signal source. The second device includes a second transceiver that transmits the three or more second carrier signals and receives the three or more first carrier signals using an output of a second reference signal source. The calculating section calculates the distance based on a phase detection result obtained by reception of the first and second carrier signals and corrects the calculated distance based on information concerning an amplitude ratio of the first carrier signals received by the second transceiver.
    Type: Application
    Filed: September 15, 2017
    Publication date: September 20, 2018
    Inventors: Yutaka Shimizu, Shoji Ootaka, Ichiro Seto, Katsuya Nonin
  • Publication number: 20180119800
    Abstract: An oil pressure control device has a mechanical oil pump (O/P) driven by a motor/generator (MG), an electric oil pump (M/O/P) driven by a sub motor (S/M) and a line pressure regulating valve (104). In a case where a state is changed from a state in which the motor/generator (MG) is stopped and the electric oil pump (M/O/P) is driven to a state in which the motor/generator (MG) is started and the electric oil pump (M/O/P) is stopped, when a total flow amount of a working fluid discharge flow amount of the mechanical oil pump (O/P) and a working fluid discharge flow amount of the electric oil pump (M/O/P) is equal to or greater than a pressure regulation limit flow amount of the pressure regulating valve (104), the working fluid discharge flow amount of the electric oil pump (M/O/P) is decreased.
    Type: Application
    Filed: March 9, 2016
    Publication date: May 3, 2018
    Applicant: JATCO Ltd
    Inventors: Yutaka SHIMIZU, Shusaku KATAKURA, Yusuke OTA, Tomoyuki KOIKE, Yukiyoshi INUTA, Youko YOSHIOKA
  • Publication number: 20180106363
    Abstract: A hydraulic control device includes: a mechanical oil pump (O/P) that is driven by a motor/generator (M/G) and that generates a first hydraulic pressure (P1); an electric oil pump (M/O/P) that is driven by a sub-motor (S/M) and that generates a second hydraulic pressure (P2); and a controller (10). When a demanded drive force from a driver is generated while in a low-vehicle-speed region which is lower than a first vehicle speed (V1) at which the output of the mechanical oil pump (O/P) becomes unstable, the controller (10) controls the electric oil pump (M/O/P) such that the second hydraulic pressure (P2) becomes larger than a compensative hydraulic pressure (P?) found by subtracting the first hydraulic pressure (P1) from a necessary hydraulic pressure (Pne) determined in accordance with the demanded drive force.
    Type: Application
    Filed: March 9, 2016
    Publication date: April 19, 2018
    Applicant: JATCO Ltd
    Inventors: Shusaku KATAKURA, Yutaka SHIMIZU, Youko YOSHIOKA, Yukiyoshi INUTA, Tomoyuki KOIKE