Patents by Inventor Yuji Shimizu

Yuji 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: 10568581
    Abstract: An object of the invention is to shorten a measurement time while preventing deterioration in resolution during frequency analysis and preventing a reduction in measurement range. A pulsimeter (1) includes a pulse data acquisition unit (100), a replication unit (16), and a frequency analysis unit (17). The replication unit (16) generates, when the number of pieces of acquired sampling data for a pulse rate calculation reaches n, m pieces of sampling data using the n pieces of sampling data and data obtained by replicating n-th sampling data. The frequency analysis unit (17) performs a frequency analysis on the m pieces of sampling data.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: February 25, 2020
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Akane Hiroshima, Naoya Tokimoto, Yuji Shimizu
  • Publication number: 20200057517
    Abstract: One aspect of the present invention provides an electroconductive film 10 comprising a light-transmitting base material 11, a plurality of light-transmitting electroconductive parts 12 provided on one surface 11A of the light-transmitting base material 11, and a nonconductive part 13 located between the electroconductive parts 12, wherein each of the electroconductive parts 12 contains a light-transmitting resin 15 and an electroconductive fiber 16 incorporated in the light-transmitting resin 15; the nonconductive part 13 contains a light-transmitting resin 15; and the surface 13A of the nonconductive part 13 has an arithmetic average roughness of 3 nm or more.
    Type: Application
    Filed: March 20, 2018
    Publication date: February 20, 2020
    Inventors: Shoichiro OGUMI, Eiji OOISHI, Yoshimasa OGAWA, Yuji SHIMIZU, Ryota KITAYAMA
  • Publication number: 20190391259
    Abstract: An inter-vehicle distance control device that achieves inter-vehicle distance control satisfying the driver includes a preceding vehicle velocity computation part that computes a preceding vehicle velocity on the basis of a host vehicle velocity and a relative velocity of the preceding vehicle, a target inter-vehicle setting art that sets a target inter-vehicle distance from the preceding vehicle on the basis of the preceding vehicle velocity, a target track generator that generates a target track and a target track differential, the target track defining a time history lasting until the initial value of the inter-vehicle distance reaches the target inter-vehicle distance, and a feedback controller that computes a feedback acceleration command by multiplying a deviation of the inter-vehicle distance from the target track and a deviation of the relative velocity from the target track differential value by a gain. The feedback acceleration command is output as an acceleration command.
    Type: Application
    Filed: April 26, 2019
    Publication date: December 26, 2019
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuji SHIMIZU, Kazuhiro NISHIWAKI, Masahiro IEZAWA
  • Publication number: 20190368899
    Abstract: A pulse signal generator suitable for generating a two-phase pulse signal required as information of a rotation angle of a motor from a motor control device is provided. According to an embodiment, the pulse signal generator includes: a compensation unit that outputs a compensation signal for compensating for the deviation between the angle information representing the rotation angle of the rotor provided in the resolver and the fed back angle information; a counter pulse output unit that outputs a counter pulse having a frequency corresponding to the compensation amount of the compensation signal and code information representing the sign of the compensation signal, and a pulse processing unit that outputs a count value by a counter as the angle information, which counts the pulse according to the code information, the pulse processing unit generating two-phase pulse signals PA and PB using the values of the counter.
    Type: Application
    Filed: May 8, 2019
    Publication date: December 5, 2019
    Inventors: Hiroshi SHIMADA, Yuji SHIMIZU, Yutaka ONO
  • Publication number: 20190302925
    Abstract: One aspect of the present invention provides a light-transmitting electroconductive film 10 comprising a light-transmitting base material 11 and an electroconductive part 13 provided on one surface of the light-transmitting base material 11, wherein the electroconductive part 13 includes a light-transmitting resin 15 and plural electroconductive fibers 16 incorporated in the light-transmitting resin 15, and the electroconductive part 13 can conduct electricity from the surface 13A of the electroconductive part 13, and the electroconductive fibers 16 as a whole are unevenly distributed on the light-transmitting base material side than the position HL, which is located at half the film thickness of the electroconductive part 13 in the electroconductive part 13, and the electroconductive part 13 has a surface resistance value of 200 ?/? or less, and the electroconductive film 10 has a haze value of 5% or less.
    Type: Application
    Filed: September 29, 2017
    Publication date: October 3, 2019
    Inventors: Shoichiro OGUMI, Yoshimasa OGAWA, Eiji OOISHI, Yukimitsu IWATA, Yuji SHIMIZU, Ryota KITAYAMA, Hiroaki MUTOU
  • Patent number: 10398384
    Abstract: It is possible to reduce power consumption of a pulsimeter while suppressing a degradation in an accuracy of measuring pulse. A pulsimeter (1) includes a light emitter (10), a photodetector (12), an AD converter (14), a frequency analyzing unit (15), and an adjusting unit (17). The light emitter (10) emits light to a blood vessel of a measurement target. The photodetector (12) detects light emitted by the light emitter (10) via the blood vessel. The AD converter (14) analog/digital converts an output signal of the photodetector (12). The frequency analyzing unit (15) frequency-analyzes data converted by the AD converter (14). The adjusting unit (17) adjusts an amount of light emitted by the light emitter (10) based on the analysis result by the frequency analyzing unit (15).
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: September 3, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Akane Hiroshima, Yuji Shimizu
  • Patent number: 10391743
    Abstract: The present invention provides a novel multilayer structure including a layered product capable of maintaining high performance even after being subjected to extrusion coating lamination. The present invention relates to a multilayer structure including a layered product and a layer (H) stacked on the layered product. The layered product includes a base (X), a layer (Z) containing an aluminum atom, and a layer (Y) containing a compound (A) containing a phosphorus atom. The layer (H) contains a thermoplastic resin (U), and the thermoplastic resin (U) is a polymer containing an ?-olefin unit.
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: August 27, 2019
    Assignee: KURRAY CO., LTD.
    Inventors: Yasutaka Inubushi, Yuji Shimizu, Masakazu Nakaya
  • Patent number: 10367521
    Abstract: The present invention provides a signal processor that improves a resolution of a phase detection without increasing a clock frequency of a controller or decreasing a frequency of an excitation signal. A signal processor 10 includes a comparator 11 that compares a signal obtained by phase modulating a carrier frequency at a rotor rotation angle of a resolver with a dither signal.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: July 30, 2019
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Akane Hiroshima, Yuji Shimizu, Yutaka Ono
  • Patent number: 10240062
    Abstract: The present invention provides a novel antistatic sheet having high gas barrier performance, high water vapor barrier performance, and antistatic performance, and a packaging material and an electronic device that include the antistatic sheet. The present invention relates to an antistatic sheet including a multilayer structure including a base (X), a layer (Z) containing an aluminum atom, and a layer (Y). The layer (Y) contains a polymer (A) having a vinylphosphonic acid unit, and the layer (Y) has a surface electrical resistivity of 1.0×106 ?/sq or more and 4.0×1013 ?/sq or less.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: March 26, 2019
    Assignee: KURARAY CO., LTD.
    Inventors: Yasutaka Inubushi, Ryoichi Sasaki, Yuji Shimizu, Masakazu Nakaya
  • Publication number: 20190014809
    Abstract: A rice washer includes a charging part into which milled rice is charged; a pressurized-stirring part which is provided at a rear-stage of the charging part and stirs and sequentially feeds the milled rice charged from the charging part under pressure; and a rinsing and stirring part which is provided at a rear-stage of the pressurized-stirring part and rinses the milled rice sent from the pressurized-stirring part while stirring.
    Type: Application
    Filed: July 5, 2018
    Publication date: January 17, 2019
    Inventors: Seizo Kawashima, Fumitaka Sekiguchi, Yuji Shimizu, Tomohiro Iizuka, Satoru Imura
  • Patent number: 10158507
    Abstract: A signal converter 100 includes, for at least two-phase signals detected by a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter 101 that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter 102 that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, and a synthesizer 103 that combines the phase-shifted first phase signal with the phase-shifted second phase signal.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: December 18, 2018
    Assignee: Renesas Electronics Corporation
    Inventors: Yuji Shimizu, Akane Hiroshima, Yutaka Ono
  • Publication number: 20180344258
    Abstract: It is possible to reduce power consumption of a pulsimeter while suppressing a degradation in an accuracy of measuring pulse. A pulsimeter (1) includes a light emitter (10), a photodetector (12), an AD converter (14), a frequency analyzing unit (15), and an adjusting unit (17). The light emitter (10) emits light to a blood vessel of a measurement target. The photodetector (12) detects light emitted by the light emitter (10) via the blood vessel. The AD converter (14) analog/digital converts an output signal of the photodetector (12). The frequency analyzing unit (15) frequency-analyzes data converted by the AD converter (14). The adjusting unit (17) adjusts an amount of light emitted by the light emitter (10) based on the analysis result by the frequency analyzing unit (15).
    Type: Application
    Filed: August 3, 2018
    Publication date: December 6, 2018
    Applicant: Renesas Electronics Corporation
    Inventors: Akane HIROSHIMA, Yuji SHIMIZU
  • Publication number: 20180324011
    Abstract: A signal converter 100 includes, for at least two-phase signals detected by a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter 101 that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter 102 that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, and a synthesizer 103 that combines the phase-shifted first phase signal with the phase-shifted second phase signal.
    Type: Application
    Filed: July 13, 2018
    Publication date: November 8, 2018
    Inventors: Yuji SHIMIZU, Akane HIROSHIMA, Yutaka ONO
  • Patent number: 10090846
    Abstract: A control apparatus includes, for at least two-phase signals detected from a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, a signal generator that generates a correction signal for canceling out an error component of the carrier signal, and a synthesizer that synthesizes the phase-shifted first phase signal, the phase-shifted second signal, and the correction signal for canceling out the error component, in order to create a phase-modulated signal that is the carrier signal being modulated at a rotation angle of a rotor of the resolver.
    Type: Grant
    Filed: April 26, 2017
    Date of Patent: October 2, 2018
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Yuji Shimizu, Akane Hiroshima, Yutaka Ono
  • Patent number: 10058289
    Abstract: It is possible to reduce power consumption of a pulsimeter while suppressing a degradation in an accuracy of measuring pulse. A pulsimeter 1 includes a light emitter 10, a photodetector 12, an AD converter 14, a frequency analyzing unit 15, and an adjusting unit 17. The light emitter 10 emits light to a blood vessel of a measurement target. The photodetector 12 detects light emitted by the light emitter 10 via the blood vessel. The AD converter 14 analog/digital converts an output signal of the photodetector 12. The frequency analyzing unit 15 frequency-analyzes data converted by the AD converter 14. The adjusting unit 17 adjusts an amount of light emitted by the light emitter 10 based on the analysis result by the frequency analyzing unit 15.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: August 28, 2018
    Assignee: Renesas Electronics Corporation
    Inventors: Akane Hiroshima, Yuji Shimizu
  • Publication number: 20180235405
    Abstract: Rice-washing work can be easily performed by anyone, and proper rice-washing of various kinds of rice can be performed irrespective of an amount of rice. Namely, conventional apparatuses have not dealt with water absorption, infiltration, swelling, weakening, dissolving, and unpleasant taste, making it difficult to secure Japanese style rice quality in a white rice state. The present invention provides a rice-polishing technique for reproducing the quality. Provided is a rice washer that can be installed in a saved space not to cause obstruction even when installed in a kitchen. The rice washer according to the present invention includes a charging part into which milled rice is charged; a pressurized-stirring part provided at a rear-stage of the charging part and configured to, while pressurizing, stir and sequentially feed the milled rice charged from the charging part; a first water supply part configured to supply water to the pressurized-stirring part.
    Type: Application
    Filed: February 16, 2018
    Publication date: August 23, 2018
    Inventors: Seizo KAWASHIMA, Fumitaka SEKIGUCHI, Yuji SHIMIZU, Tomohiro IIZUKA, Satoru IMURA
  • Patent number: 10044538
    Abstract: A signal converter 100 includes, for at least two-phase signals detected by a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter 101 that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter 102 that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, and a synthesizer 103 that combines the phase-shifted first phase signal with the phase-shifted second phase signal.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: August 7, 2018
    Assignee: Renesas Electronics Corporation
    Inventors: Yuji Shimizu, Akane Hiroshima, Yutaka Ono
  • Publication number: 20180079189
    Abstract: The present invention aims to provide a conductive layered body having excellent solvent resistance and scratch resistance as well as a low haze value and a significantly high light transmittance. The present invention relates to a conductive layered body including, as an outermost layer thereof, a conductive layer containing a conductive fibrous filler, wherein the conductive layered body has a Martens hardness of 150 to 3,000 N/mm2 as measured at an indentation depth of 100 nm from a surface, and a ratio, in atomic percentage, of a conductive material element constituting the conductive fibrous filler on an outermost surface-side surface of the conductive layer is 0.15 to 5.00 at %.
    Type: Application
    Filed: April 5, 2016
    Publication date: March 22, 2018
    Inventors: Yoshimasa OGAWA, Yukimitsu IWATA, Yuji SHIMIZU, Eiji OOISHI, Shoichiro OGUMI, Norinaga NAKAMURA
  • Publication number: 20180069737
    Abstract: A signal converter 100 includes, for at least two-phase signals detected by a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter 101 that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter 102 that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, and a synthesizer 103 that combines the phase-shifted first phase signal with the phase-shifted second phase signal.
    Type: Application
    Filed: November 8, 2017
    Publication date: March 8, 2018
    Inventors: Yuji SHIMIZU, Akane HIROSHIMA, Yutaka ONO
  • Patent number: 9832054
    Abstract: A signal converter 100 includes, for at least two-phase signals detected by a resolver excited by a carrier signal having a carrier frequency fc, a first phase shifter 101 that shifts a phase of a first phase signal of the resolver with a pole at a frequency f1 lower than the carrier frequency fc, a second phase shifter 102 that shifts a phase of a second phase signal of the resolver with a pole at a frequency f2 higher than the carrier frequency fc, and a synthesizer 103 that combines the phase-shifted first phase signal with the phase-shifted second phase signal.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: November 28, 2017
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventors: Yuji Shimizu, Akane Hiroshima, Yutaka Ono