Patents by Inventor Masaru Kimura

Masaru Kimura 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: 20210319800
    Abstract: A frequency band expansion device includes processing circuitry to calculate a weighting coefficient based on a frequency gradient of the input signal; to generate a white noise signal; to generate a first white noise signal by performing filtering on the white noise signal; to generate a second white noise signal by regulating a phase characteristic of the white noise signal; to generate a third white noise signal by performing weighted addition on the first white noise signal and the second white noise signal by using the weighting coefficient; and to generate the output signal by adding together the input signal and a signal corresponding to the third white noise signal, wherein the processing circuitry is configured so that the phase characteristic of the second white noise signal becomes the same as the phase characteristic of the first white noise signal.
    Type: Application
    Filed: June 23, 2021
    Publication date: October 14, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke HOSOYA, Masaru KIMURA
  • Patent number: 11076252
    Abstract: An audio signal processing apparatus includes; a first correlation component separating unit configured to predict a first signal from a second signal in a predetermined period to generate a first correlation component signal and to separate the first non-correlation component signal from the first signal by using the first correlation component signal; a second correlation component separating unit configured to predict a second signal from the first signal in the predetermined period to generate a second correlation component signal and to separate the second non-correlation component signal from the second signal by using the second correlation component signal; a correlation component synthesizing unit configured to synthesize the first correlation component signal and the second correlation component signal to generate a synthesized correlation component signal; a first gain multiplying unit configured to multiply the synthesized correlation component signal by a gain to generate a correlation component
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: July 27, 2021
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke Hosoya, Masaru Kimura
  • Publication number: 20210221396
    Abstract: An information presentation control device includes: an analyzer to calculate a degree of risk based on information regarding an object located around a vehicle; an occupant monitor to determine whether a driver is aware of approach of the object, based on information obtained by imaging the driver with a camera; an image processor to cause at least one of the displays to perform alerting display, based on the degree of risk; and a sound processor to cause the sound output device to generate, as an alerting sound, a sound whose sound image is controlled so that a virtual sound source is localized at a position of at least one of the at least one display, based on the degree of risk. When the driver is aware of the object, the sound processor stops generation of the alerting sound or decreases a sound volume of the alerting sound.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomoharu AWANO, Masaru KIMURA
  • Publication number: 20210170906
    Abstract: A vehicle control device mounted on a vehicle includes a power storage device, a drive device configured to be driven by electric power from the power storage device, a system main relay attached to a power line between the power storage device and the drive device, and a charge circuit connected to a side of the drive device through the system main relay of the power line, in which the vehicle control device is configured to turn off the system main relay and prohibit reactivation of the system in a power shortage of the power storage device. The vehicle control device is configured to permit the system main relay to be turned on in a case where charging of the power storage device using the charge circuit is requested.
    Type: Application
    Filed: September 9, 2020
    Publication date: June 10, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masaru KIMURA
  • Publication number: 20210170882
    Abstract: A vehicle control device includes a power storage device, a drive device, a system main relay attached to a power line, and a charge circuit connected to the power line on a side of the drive device from the system main relay. The vehicle control device turns off the system main relay in a power shortage of the power storage device, and store a power shortage state of the power storage device to prohibit reactivation of the system. The vehicle control device, when charging of the power storage device using the charge circuit is requested, determines whether the power shortage state of the power storage device is stored, and when the power shortage state of the power storage device is stored, releases prohibition of system reactivation when an output limit of the power storage device reaches predetermined electric power or more due to charging.
    Type: Application
    Filed: September 16, 2020
    Publication date: June 10, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Masaru KIMURA
  • Patent number: 11014452
    Abstract: An electrically driven vehicle comprises a motor; a power storage device; a first power supply device connected with a power line; a charging device configured to charge the power storage device by using electric power from an external power source; and a second power supply device configured to supply part of the electric power from the external power source to auxiliary machinery via the charging device. The electrically driven vehicle performs a charging efficiency determination process that calculates a charging efficiency as a ratio of a charging power of the power storage device to an input power of the charging device, and that determines whether the charging efficiency is lower than a predetermined efficiency. When the charging efficiency determination process determines that the charging efficiency is lower than the predetermined efficiency, the electrically driven vehicle stops the second power supply device and performs the charging efficiency determination process again.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: May 25, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Masaru Kimura, Yusuke Furuhashi, Hidenori Yamada, Yusuke Hattori
  • Patent number: 10988043
    Abstract: A vehicle includes an electric power converter; an electric power storage device; a control unit. The control unit is configured to i) increase command electric power stepwise by a specified reference amount toward target electric power, ii) after the command electric power reaches the target electric power, reduce the command electric power each time a voltage of the electric power storage device exceeds a first threshold voltage, and iii) stop supply of electric power from an external power supply when the voltage of the electric power storage device reaches a second threshold voltage that is higher than the first threshold voltage. The specified reference amount is set such that an increased amount of the voltage of the electric power storage device at each step of increasing the command electric power is smaller than a voltage difference between the second threshold voltage and the first threshold voltage.
    Type: Grant
    Filed: February 5, 2019
    Date of Patent: April 27, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masaru Kimura
  • Publication number: 20210080937
    Abstract: An information analysis device includes a processor and a storage unit. The processor includes: a worker information calculator to calculate worker information including at least one of an action speed of a worker and a position of the worker based on first information acquired from a first detector; a progress information calculator to calculate work progress information including a progress speed of the work based on second information acquired from a second detector; a product information calculator to calculate product information including at least one of a stock quantity of the product and a position of the product based on third information acquired from a third detector; and an information connection extractor to generate data indicating a connection between at least two types of information, among the worker information, the work progress information and the product information, in regard to each of a plurality of predetermined time slots.
    Type: Application
    Filed: February 15, 2018
    Publication date: March 18, 2021
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Satoshi SAKURAI, Hiroyasu NEGISHI, Masaru KIMURA, Tomoharu AWANO, Kosuke HOSOYA
  • Publication number: 20210044912
    Abstract: An audio signal processing apparatus includes; a first correlation component separating unit configured to predict a first signal from a second signal in a predetermined period to generate a first correlation component signal and to separate the first non-correlation component signal from the first signal by using the first correlation component signal; a second correlation component separating unit configured to predict a second signal from the first signal in the predetermined period to generate a second correlation component signal and to separate the second non-correlation component signal from the second signal by using the second correlation component signal; a correlation component synthesizing unit configured to synthesize the first correlation component signal and the second correlation component signal to generate a synthesized correlation component signal; a first gain multiplying unit configured to multiply the synthesized correlation component signal by a gain to generate a correlation component
    Type: Application
    Filed: February 9, 2018
    Publication date: February 11, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kosuke HOSOYA, Masaru KIMURA
  • Patent number: 10771895
    Abstract: An audio signal processing device includes a high pass filter to convert an input audio signal into a first audio signal and to output the first audio signal, a displacement estimation unit to estimate displacement amplitude of a speaker diaphragm when the input audio signal is inputted, a saturation processing unit to perform saturation processing to the displacement amplitude estimated in the displacement estimation unit or to a signal obtained by correcting the displacement amplitude, an audio signal generation unit to generate a second audio signal by using displacement amplitude obtained after the saturation processing in the saturation processing unit, and an output generation unit to generate an output signal by using the first and the second audio signals. With this configuration, a cracking sound of a speaker is reduced and a user is allowed to feel low frequency components.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: September 8, 2020
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke Hosoya, Masaru Kimura
  • Publication number: 20200245064
    Abstract: A microphone array includes first and second microphones (Ma, Mb) placed on a first axis (f), a third microphone (Mc) placed on a plane (fg) formed by the first axis and a second axis (g) and at a position other than on the first axis, and a fourth microphone (Md) placed on a third axis (h), and at a position other than on the plane formed by the first and the second axes, and a processing circuit generates signals (Cx, Cy, Cz) having bidirectionality in first, second and third mutually perpendicular directions (x, y, z), and an omnidirectional signal (Cw), based on signals (Ba to Bd) obtained by sound collection by means of the first to fourth microphones. It is possible to generate signals having bidirectionality in mutually perpendicular directions, and an omnidirectional signal, without using special microphones, and without excessive restrictions with regard to the placement of the microphones.
    Type: Application
    Filed: November 15, 2017
    Publication date: July 30, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomoharu AWANO, Masaru KIMURA, Satoru FURUTA, Jin HIRANO, Atsuyoshi YANO, Nobuaki TANAKA
  • Publication number: 20200007982
    Abstract: An audio signal processing device includes a high pass filter to convert an input audio signal into a first audio signal and to output the first audio signal, a displacement estimation unit to estimate displacement amplitude of a speaker diaphragm when the input audio signal is inputted, a saturation processing unit to perform saturation processing to the displacement amplitude estimated in the displacement estimation unit or to a signal obtained by correcting the displacement amplitude, an audio signal generation unit to generate a second audio signal by using displacement amplitude obtained after the saturation processing in the saturation processing unit, and an output generation unit to generate an output signal by using the first and the second audio signals. With this configuration, a cracking sound of a speaker is reduced and a user is allowed to feel low frequency components.
    Type: Application
    Filed: March 14, 2017
    Publication date: January 2, 2020
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kosuke HOSOYA, Masaru KIMURA
  • Publication number: 20190241088
    Abstract: A vehicle includes an electric power converter; an electric power storage device; a control unit. The control unit is configured to i) increase command electric power stepwise by a specified reference amount toward target electric power, ii) after the command electric power reaches the target electric power, reduce the command electric power each time a voltage of the electric power storage device exceeds a first threshold voltage, and iii) stop supply of electric power from an external power supply when the voltage of the electric power storage device reaches a second threshold voltage that is higher than the first threshold voltage. The specified reference amount is set such that an increased amount of the voltage of the electric power storage device at each step of increasing the command electric power is smaller than a voltage difference between the second threshold voltage and the first threshold voltage.
    Type: Application
    Filed: February 5, 2019
    Publication date: August 8, 2019
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masaru Kimura
  • Publication number: 20190232788
    Abstract: An electrically driven vehicle comprises a motor; a power storage device; a first power supply device connected with a power line; a charging device configured to charge the power storage device by using electric power from an external power source; and a second power supply device configured to supply part of the electric power from the external power source to auxiliary machinery via the charging device. The electrically driven vehicle performs a charging efficiency determination process that calculates a charging efficiency as a ratio of a charging power of the power storage device to an input power of the charging device, and that determines whether the charging efficiency is lower than a predetermined efficiency. When the charging efficiency determination process determines that the charging efficiency is lower than the predetermined efficiency, the electrically driven vehicle stops the second power supply device and performs the charging efficiency determination process again.
    Type: Application
    Filed: January 29, 2019
    Publication date: August 1, 2019
    Inventors: Masaru Kimura, Yusuke Furuhashi, Hidenori Yamada, Yusuke Hattori
  • Patent number: 9908523
    Abstract: A hybrid vehicle includes an engine, a first MG (motor generator), a second MG, a battery electrically connected to the first MG and the second MG, an engine ECU configured to control the engine, and a hybrid ECU (Electronic Control Unit) configured to control the first MG and the second MG and communicate with the engine ECU. When an abnormality of communication with the engine ECU is not found and a history of an abnormality of the engine main body is not found and electric power generated by the first MG during cranking of the engine is lower than electric power receivable by the battery during MD (Motor Drive) running (fail-safe running) in which the engine is stopped, the hybrid ECU achieves recovery to normal running in which actuation of the engine is permitted, with cranking of the engine by power generation torque of the first MG.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: March 6, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masaru Kimura
  • Publication number: 20170279288
    Abstract: A power-supply apparatus includes: a battery; a charger that charges the battery; a charging relay provided on a power line to connect/disconnect the battery and the charger to/from each other through an on-off operation; a first voltage sensor attached to a portion of the power line between the charger and the charging relay; a second voltage sensor attached to a portion of the power line between the battery and the charging relay; and an ECU that permits detection of a deviation abnormality in which a deviation between a charger-side voltage and a battery-side voltage is equal to or greater than a threshold when it is verified that the battery is being charged by the charger while the charging relay is on, and prohibits the detection when it is not verified that the battery is being charged by the charger while the charging relay is on.
    Type: Application
    Filed: March 17, 2017
    Publication date: September 28, 2017
    Inventors: Masaru Kimura, Noritake Mitsutani
  • Publication number: 20170057490
    Abstract: A hybrid vehicle includes an engine, a first MG (motor generator), a second MG, a battery electrically connected to the first MG and the second MG, an engine ECU configured to control the engine, and a hybrid ECU (Electronic Control Unit) configured to control the first MG and the second MG and communicate with the engine ECU. When an abnormality of communication with the engine ECU is not found and a history of an abnormality of the engine main body is not found and electric power generated by the first MG during cranking of the engine is lower than electric power receivable by the battery during MD (Motor Drive) running (fail-safe running) in which the engine is stopped, the hybrid ECU achieves recovery to normal running in which actuation of the engine is permitted, with cranking of the engine by power generation torque of the first MG.
    Type: Application
    Filed: August 5, 2016
    Publication date: March 2, 2017
    Inventor: Masaru Kimura
  • Patent number: 9553554
    Abstract: A signal processing device includes an excessive input estimating unit that estimates excessive input of a target signal, a controller that calculates frequency characteristics which will lessen the excessive input of the target signal from the excessive input information estimated by the excessive input estimating unit, and a frequency characteristic modification unit that modifies the frequency characteristics of the target signal in accordance with the frequency characteristics the controller calculates.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: January 24, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaru Kimura, Kohei Teramoto, Takashi Yamazaki, Takuya Taniguchi
  • Patent number: 9552826
    Abstract: A device includes a HPF 702 that modifies frequency characteristics of a target signal; a phase correcting unit 701 that corrects the phase characteristics of the target signal to make the phase characteristics nearly equal to phase characteristics of the HPF 702; a first multiplier 705 that adjusts the gain of the signal output from the phase correcting unit 701; a second multiplier 706 that adjusts the gain of the signal output from the HPF 702; a coefficient determining unit that determines the gain coefficients of the first and second multipliers 705 and 706 in such a manner that the sum of the gain coefficient of the first multiplier 705 and the gain coefficient of the second multiplier 706 becomes a fixed value; and an adder 713 that adds the two signals output from the first multiplier 705 and second multiplier 706.
    Type: Grant
    Filed: December 14, 2012
    Date of Patent: January 24, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masaru Kimura, Takashi Yamazaki
  • Publication number: 20160255891
    Abstract: A method of producing a material for protective garment includes step of sheet-forming activated carbon fiber sheet using activated carbon fibers in which a phenolic resin fiber is used as a precursor and a step of reinforcing the activated carbon fiber sheet by interweaving a thread onto the activated carbon fiber sheet.
    Type: Application
    Filed: March 4, 2015
    Publication date: September 8, 2016
    Applicant: Gun Ei Chemical Industry Co., Ltd.
    Inventors: Masaru KIMURA, Shinichi MURATA, Akiyuki KOJIMA