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: 10615956Abstract: 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: GrantFiled: August 30, 2018Date of Patent: April 7, 2020Assignee: TOSHIBA MEMORY CORPORATIONInventors: Hiroyuki Kobayashi, Yutaka Shimizu
-
Publication number: 20200092143Abstract: 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: ApplicationFiled: February 26, 2019Publication date: March 19, 2020Inventors: Yuji SATOH, Yutaka SHIMIZU
-
Patent number: 10576965Abstract: 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: GrantFiled: March 9, 2016Date of Patent: March 3, 2020Assignee: JATCO LTDInventors: Shusaku Katakura, Yutaka Shimizu, Tomoyuki Koike, Yukiyoshi Inuta, Youko Yoshioka
-
Patent number: 10560292Abstract: 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: GrantFiled: February 26, 2019Date of Patent: February 11, 2020Assignee: TOSHIBA MEMORY CORPORATIONInventor: Yutaka Shimizu
-
Publication number: 20190288831Abstract: 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: ApplicationFiled: August 30, 2018Publication date: September 19, 2019Inventors: Hiroyuki KOBAYASHI, Yutaka SHIMIZU
-
Patent number: 10309528Abstract: 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: GrantFiled: March 9, 2016Date of Patent: June 4, 2019Assignee: JATCO LTDInventors: Shusaku Katakura, Yutaka Shimizu, Yusuke Ota, Keiichi Nakao, Shintaro Ohshio, Hirotaka Suzuki
-
Patent number: 10309526Abstract: 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: GrantFiled: March 9, 2016Date of Patent: June 4, 2019Assignee: JATCO LTDInventors: Shusaku Katakura, Yutaka Shimizu, Youko Yoshioka, Yukiyoshi Inuta, Tomoyuki Koike
-
Publication number: 20180267154Abstract: 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: ApplicationFiled: September 15, 2017Publication date: September 20, 2018Inventors: Shoji Ootaka, Yutaka Shimizu, Ichiro Seto, Yoshiharu Nito, Masaki Nishikawa, Takayuki Kato, Shigeyasu Iwata, Katsuya Nonin
-
Publication number: 20180267155Abstract: 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: ApplicationFiled: September 15, 2017Publication date: September 20, 2018Inventors: Yutaka Shimizu, Shoji Ootaka, Ichiro Seto, Katsuya Nonin
-
Publication number: 20180119800Abstract: 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: ApplicationFiled: March 9, 2016Publication date: May 3, 2018Applicant: JATCO LtdInventors: Yutaka SHIMIZU, Shusaku KATAKURA, Yusuke OTA, Tomoyuki KOIKE, Yukiyoshi INUTA, Youko YOSHIOKA
-
Publication number: 20180105162Abstract: 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: ApplicationFiled: March 9, 2016Publication date: April 19, 2018Applicant: JATCO LtdInventors: Shusaku KATAKURA, Yutaka SHIMIZU, Tomoyuki KOIKE, Yukiyoshi INUTA, Youko YOSHIOKA
-
Publication number: 20180106363Abstract: 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: ApplicationFiled: March 9, 2016Publication date: April 19, 2018Applicant: JATCO LtdInventors: Shusaku KATAKURA, Yutaka SHIMIZU, Youko YOSHIOKA, Yukiyoshi INUTA, Tomoyuki KOIKE
-
Publication number: 20180100578Abstract: 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: ApplicationFiled: March 9, 2016Publication date: April 12, 2018Applicant: JATCO LtdInventors: Yutaka SHIMIZU, Shusaku KATAKURA, Yusuke OTA, Youko YOSHIOKA, Yukiyoshi INUTA, Tomoyuki KOIKE
-
Publication number: 20180094722Abstract: 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: ApplicationFiled: March 9, 2016Publication date: April 5, 2018Applicant: JATCO LtdInventors: Shusaku KATAKURA, Yutaka SHIMIZU, Yusuke OTA, Keiichi NAKAO, Shintaro OHSHIO, Hirotaka SUZUKI
-
Patent number: 9745443Abstract: An inorganic filler-containing epoxy resin cured product contains a magnesium oxide powder and has a maximum thermogravimetric mass loss rate ?Rmax of ?0.20 mass percent/° C. or more within a temperature range of 300° C. to 500° C. The filling factor of the magnesium oxide powder in the inorganic filler-containing epoxy resin cured product is 45% to 63% by volume.Type: GrantFiled: May 11, 2015Date of Patent: August 29, 2017Assignee: TDK CORPORATIONInventors: Yutaka Shimizu, Tsuyoshi Sugiyama, Hiroshi Shutoh, Masaaki Yamashita
-
Patent number: 9203460Abstract: According to one embodiment, a transmitter includes a first buffer, a second buffer, a logic circuit, and a class E power amplifier. The first buffer receives a first sinusoidal signal, and converts the first sinusoidal signal to a first rectangular wave signal. The second buffer receives a second sinusoidal signal having a phase delay with respect to the first sinusoidal signal, and converts the second sinusoidal signal to a second rectangular wave signal. The logic circuit receives the first and second rectangular wave signals, and performs logical operation processing on the first and second rectangular wave signals to generate a logic signal with a predetermined duty cycle. The class E power amplifier receives the logic signal, and performs amplification operation based on the logic signal.Type: GrantFiled: July 14, 2014Date of Patent: December 1, 2015Assignee: Kabushiki Kaisha ToshibaInventor: Yutaka Shimizu
-
Publication number: 20150329695Abstract: An inorganic filler-containing epoxy resin cured product contains a magnesium oxide powder and has a maximum thermogravimetric mass loss rate ?Rmax of ?0.20 mass percent/° C. or more within a temperature range of 300° C. to 500° C. The filling factor of the magnesium oxide powder in the inorganic filler-containing epoxy resin cured product is 45% to 63% by volume.Type: ApplicationFiled: May 11, 2015Publication date: November 19, 2015Inventors: Yutaka SHIMIZU, Tsuyoshi SUGIYAMA, Hiroshi SHUTOH, Masaaki YAMASHITA
-
Publication number: 20140323061Abstract: According to one embodiment, a transmitter includes a first buffer, a second buffer, a logic circuit, and a class E power amplifier. The first buffer receives a first sinusoidal signal, and converts the first sinusoidal signal to a first rectangular wave signal. The second buffer receives a second sinusoidal signal having a phase delay with respect to the first sinusoidal signal, and converts the second sinusoidal signal to a second rectangular wave signal. The logic circuit receives the first and second rectangular wave signals, and performs logical operation processing on the first and second rectangular wave signals to generate a logic signal with a predetermined duty cycle. The class E power amplifier receives the logic signal, and performs amplification operation based on the logic signal.Type: ApplicationFiled: July 14, 2014Publication date: October 30, 2014Inventor: Yutaka Shimizu
-
Patent number: 8818304Abstract: According to one embodiment, a transmitter includes a first buffer, a second buffer, a logic circuit, and a class E power amplifier. The first buffer receives a first sinusoidal signal, and converts the first sinusoidal signal to a first rectangular wave signal. The second buffer receives a second sinusoidal signal having a phase delay with respect to the first sinusoidal signal, and converts the second sinusoidal signal to a second rectangular wave signal. The logic circuit receives the first and second rectangular wave signals, and performs logical operation processing on the first and second rectangular wave signals to generate a logic signal with a predetermined duty cycle. The class E power amplifier receives the logic signal, and performs amplification operation based on the logic signal.Type: GrantFiled: September 7, 2011Date of Patent: August 26, 2014Assignee: Kabushiki Kaisha ToshibaInventor: Yutaka Shimizu
-
Publication number: 20130251071Abstract: A receiver includes a channel selection filter that receives an input signal, filters the input signal, and outputs the filtered input signal as a first signal, an amplifier that receives the first signal from the channel selection filter, amplifies the first signal, and outputs the amplified first signal as a second signal, a first detector that receives the second signal from the amplifier and outputs a third signal after delaying and detecting the second signal, a second detector that receives the second signal from the amplifier and outputs a fourth signal after performing pulse count detection or quadrature detection on the second signal, a switching circuit that selects one of the third signal and the fourth signal and outputs the selected signal as a demodulated signal through an output terminal, and a control circuit that controls the switching circuit to select either the third signal or the fourth signal.Type: ApplicationFiled: September 5, 2012Publication date: September 26, 2013Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yutaka SHIMIZU, Yoshiharu Nito