Patents by Inventor Naoto Kobayashi

Naoto Kobayashi 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: 11126491
    Abstract: An information processing apparatus includes sensors for detecting a plurality of types of errors. The information processing apparatus identifies a type of an error detected by one of the sensors, acquires a result of diagnostic processing corresponding to the identified type of the error, and outputs error information indicating the identified type of the error, and diagnostic information about a component corresponding to the result of the diagnostic processing.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: September 21, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Norihiko Kobayashi, Kimito Kasahara, Kaori Nishiyama, Naoto Watanabe, Keisuke Aizono, Satoshi Seki, Masahiro Mutsuno, Takuma Yasukawa, Yuki Suetani, Toshiyuki Miyake
  • Patent number: 11012048
    Abstract: A filter includes: a piezoelectric substrate; a first acoustic wave resonator located on the piezoelectric substrate and including a pair of first reflectors including first grating electrodes and a pair of first comb-shaped electrodes that is located between the first reflectors and includes first electrode fingers; and a second acoustic wave resonator that is connected in series or parallel with the first acoustic wave resonator, is located on the piezoelectric substrate, and includes a pair of second reflectors including second grating electrodes and a pair of second comb-shaped electrodes that is located between the second reflectors and includes second electrode fingers, an average value of duty ratios of the second grating electrodes being different from an average value of duty ratios of the first grating electrodes, an average value of pitches of the second electrode fingers being substantially equal to an average value of pitches of the first electrode fingers.
    Type: Grant
    Filed: November 26, 2019
    Date of Patent: May 18, 2021
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Toshimasa Numata, Hitoshi Ebihara, Naoto Kobayashi, Masayuki Kitajima
  • Publication number: 20210087652
    Abstract: A granulated material is provided which enables a reduction in the amount of adhesion of the granulated material to a conveyor junction. A granulated material includes sludge in an amount of greater than 30 mass % and 90 mass % or less and sintered ore powder in an amount of 10 mass % or greater and less than 70 mass %. The granulated material includes granulated particles in which at least a portion of the sludge adheres to at least a portion of the sintered ore powder.
    Type: Application
    Filed: March 20, 2019
    Publication date: March 25, 2021
    Applicant: JFE Steel Corporation
    Inventors: Masato Kuroiwa, Kenta Takehara, Naoto Kobayashi, Tetsuya Yamamoto, Tetsuya Jinno, Yasukazu Hayasaka, Kazuki Oda
  • Patent number: 10910958
    Abstract: In a control apparatus, a voltage obtainer obtains an alternating-current voltage having a polarity across first and second alternating-current terminals. An overcurrent determiner determines whether a target current flowing through the first and second alternating-current terminals is in an overcurrent state. A controller alternately turns on a first set of first and fourth switches and a second set of second and third switches in accordance with the polarity of the alternating-current voltage. The controller changes a switching operation of at least one of the first to fourth switch being in an on state to thereby reduce the target current flowing through the first and second alternating-current terminals upon determination that the target current flowing through the first and second alternating-current terminals is in the overcurrent state.
    Type: Grant
    Filed: November 29, 2019
    Date of Patent: February 2, 2021
    Assignee: DENSO CORPORATION
    Inventors: Naoto Kobayashi, Seiji Iyasu, Yuichi Handa
  • Publication number: 20200403527
    Abstract: A control unit determines a polarity of an actual voltage value of an AC power supply if it is either positive or negative based on a detection voltage thereof detected by the voltage detector. The control unit alternately actuates a set of a first switch and a fourth switch and another set of the second switch and a third switch each time when it is determined that the polarity of the actual voltage value of the AC power supply changes. A second reactor is disposed at at least one of first and second positions. The first position is located between a first AC side terminal and a connection point located between the first switch and the second switch. The second position is located between a second AC side terminal and a connection point located between the third switch and the fourth switch.
    Type: Application
    Filed: June 24, 2020
    Publication date: December 24, 2020
    Applicant: DENSO CORPORATION
    Inventors: Naoto KOBAYASHI, Seiji IYASU, Yuichi HANDA
  • Patent number: 10873272
    Abstract: A locus of integrals, in terms of time, of unit voltage vectors forms a loop within a period shorter than a reciprocal of a maximum value of an operating frequency, in terms of electrical angle, of a compressor motor, the unit voltage vectors being voltage vectors that are units composing an instantaneous space vector indicating voltage which an inverter for driving the compressor motor outputs except in a dead time period.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: December 22, 2020
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Minoru Kitou, Naoto Kobayashi
  • Patent number: 10804831
    Abstract: In a magnetic flux variation estimator of a control apparatus, a command voltage corrector corrects d- and q-axis command voltages to reduce a deviation between each of the d- and q-axis command voltages and a corresponding actual voltage to be applied to a rotary electric machine, thus outputting a corrected d-axis command voltage and a corrected q-axis command voltage. A standard voltage calculator calculates, based on an electrical angular velocity of the rotary electric machine and a current flowing in the rotary electric machine, a d-axis standard voltage and a q-axis standard voltage to be applied to the rotary electric machine while the rotary electric machine is in a predetermined standard state. An estimator estimates a magnetic flux variation as a function of the corrected d-axis command voltage, the corrected q-axis command voltage, and the q-axis standard voltage.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: October 13, 2020
    Assignee: DENSO CORPORATION
    Inventor: Naoto Kobayashi
  • Patent number: 10775552
    Abstract: A heat sink 41 is provided on a lower edge side, for example, of a display panel 21 with a heat radiation surface being on a display surface side of the display panel 21. A heat source, such as a light source 22, which generates heat owing to display operation using the display panel 21 is mounted on a mounting face opposite to the heat radiation surface. A cover 31 that covers the heat sink 41 is provided on the display surface side of the display panel 21. Air holes 311 and 312 are formed on a top face 31t and a bottom face 31b, respectively, of the cover 31. Air taken in through the air holes 312 on the bottom face 31b of the cover 31 cools the heat sink 41, and the air heated by the heat of the heat sink 41 is dissipated outside through the air holes 311 on the top face 31t. Heat generated inside the display device is efficiently dissipated with a small ventilation resistance without generation of noise.
    Type: Grant
    Filed: November 11, 2016
    Date of Patent: September 15, 2020
    Assignee: Sony Corporation
    Inventors: Naoto Kobayashi, Makoto Nakagawa, Tomoya Yano
  • Patent number: 10778130
    Abstract: In a control apparatus, an error correction outputting unit has correction information indicative of a relationship between values of an estimation error correction and corresponding values of at least one parameter correlating with an operating condition of a rotary electric machine. The error correction outputting unit outputs, in response to an input of a value of the at least one parameter, a value of the estimation error correction from the correction information. The value of the estimation error correction corresponds to the input value of the at least one parameter. A magnetic flux estimation corrector corrects, based on the value of the estimation error correction, an estimate of magnetic flux calculated by a magnetic flux estimator to thereby output a corrected magnetic flux estimate.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: September 15, 2020
    Assignee: DENSO CORPORATION
    Inventor: Naoto Kobayashi
  • Publication number: 20200244185
    Abstract: A locus of integrals, in terms of time, of unit voltage vectors forms a loop within a period shorter than a reciprocal of a maximum value of an operating frequency, in terms of electrical angle, of a compressor motor, the unit voltage vectors being voltage vectors that are units composing an instantaneous space vector indicating voltage which an inverter for driving the compressor motor outputs except in a dead time period.
    Type: Application
    Filed: March 28, 2018
    Publication date: July 30, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Minoru KITOU, Naoto KOBAYASHI
  • Publication number: 20200244246
    Abstract: A filter includes: a piezoelectric substrate; a first acoustic wave resonator located on the piezoelectric substrate and including a pair of first reflectors including first grating electrodes and a pair of first comb-shaped electrodes that is located between the first reflectors and includes first electrode fingers; and a second acoustic wave resonator that is connected in series or parallel with the first acoustic wave resonator, is located on the piezoelectric substrate, and includes a pair of second reflectors including second grating electrodes and a pair of second comb-shaped electrodes that is located between the second reflectors and includes second electrode fingers, an average value of duty ratios of the second grating electrodes being different from an average value of duty ratios of the first grating electrodes, an average value of pitches of the second electrode fingers being substantially equal to an average value of pitches of the first electrode fingers.
    Type: Application
    Filed: November 26, 2019
    Publication date: July 30, 2020
    Applicant: TAIYO YUDEN CO., LTD.
    Inventors: Toshimasa NUMATA, Hitoshi EBIHARA, Naoto KOBAYASHI, Masayuki KITAJIMA
  • Publication number: 20200204396
    Abstract: An on-board communication system includes: an on-board relay apparatus configured to relay message transmission and reception between a plurality of bus communication lines; a plurality of first on-board communication apparatuses is connected to one of the plurality of communication lines; and a second on-board communication apparatus is connected to at least two of the plurality of communication lines. The second on-board communication apparatus transmits, if a specific message is received through one of the connected communication lines, the message through another communication line. The on-board relay apparatus determines whether or not the specific message received through one of the connected communication lines satisfies a predetermined discard condition.
    Type: Application
    Filed: April 25, 2018
    Publication date: June 25, 2020
    Inventor: Naoto Kobayashi
  • Publication number: 20200169187
    Abstract: In a control apparatus, a voltage obtainer obtains an alternating-current voltage having a polarity across first and second alternating-current terminals. An overcurrent determiner determines whether a target current flowing through the first and second alternating-current terminals is in an overcurrent state. A controller alternately turns on a first set of first and fourth switches and a second set of second and third switches in accordance with the polarity of the alternating-current voltage. The controller changes a switching operation of at least one of the first to fourth switch being in an on state to thereby reduce the target current flowing through the first and second alternating-current terminals upon determination that the target current flowing through the first and second alternating-current terminals is in the overcurrent state.
    Type: Application
    Filed: November 29, 2019
    Publication date: May 28, 2020
    Applicant: DENSO CORPORATION
    Inventors: Naoto KOBAYASHI, Seiji IYASU, Yuichi HANDA
  • Publication number: 20200036316
    Abstract: A power converter converts a DC voltage including a pulsation component into an AC voltage and outputs the AC voltage to a synchronous electrical motor. A control device for controlling the power converter includes a pulsation component detection unit and a control circuit. The pulsation component detection unit detects a pulsation component. The control circuit controls the power converter so that a load angle of the synchronous electrical motor is increased in accordance with increase in an instantaneous value of the pulsation component.
    Type: Application
    Filed: August 24, 2017
    Publication date: January 30, 2020
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Ryuuji YASUMOTO, Nobuki KITANO, Naoto KOBAYASHI, Minoru KITOU
  • Publication number: 20190332371
    Abstract: An update system performs update processing for updating a program or data stored in a storage unit of an on-board device installed in a vehicle, and includes a portable communication device that has a position detection unit that detects position information, and an on-board update apparatus that has a position information acquisition unit that acquires position information from the portable communication device, a position information storage unit that stores position information for permitting or prohibiting execution of the update processing, an update determination unit that determines whether or not the update processing can be executed, based on the position information acquired by the position information acquisition unit and the position information stored in the position information storage unit, and an updating unit that performs the update processing if the update determination unit determines that execution is permitted.
    Type: Application
    Filed: December 18, 2017
    Publication date: October 31, 2019
    Inventor: Naoto Kobayashi
  • Publication number: 20190229665
    Abstract: In a control apparatus, an error correction outputting unit has correction info' illation indicative of a relationship between values of an estimation error correction and corresponding values of at least one parameter correlating with an operating condition of a rotary electric machine. The error correction outputting unit outputs, in response to an input of a value of the at least one parameter, a value of the estimation error correction from the correction information. The value of the estimation error correction corresponds to the input value of the at least one parameter. A magnetic flux estimation corrector corrects, based on the value of the estimation error correction, an estimate of magnetic flux calculated by a magnetic flux estimator to thereby output a corrected magnetic flux estimate.
    Type: Application
    Filed: January 22, 2019
    Publication date: July 25, 2019
    Applicant: DENSO CORPORATION
    Inventor: Naoto KOBAYASHI
  • Publication number: 20190229664
    Abstract: In a magnetic flux variation estimator of a control apparatus, a command voltage corrector corrects d- and q-axis command voltages to reduce a deviation between each of the d- and q-axis command voltages and a corresponding actual voltage to be applied to a rotary electric machine, thus outputting a corrected d-axis command voltage and a corrected q-axis command voltage. A standard voltage calculator calculates, based on an electrical angular velocity of the rotary electric machine and a current flowing in the rotary electric machine, a d-axis standard voltage and a q-axis standard voltage to be applied to the rotary electric machine while the rotary electric machine is in a predetermined standard state. An estimator estimates a magnetic flux variation as a function of the corrected d-axis command voltage, the corrected q-axis command voltage, and the q-axis standard voltage.
    Type: Application
    Filed: January 22, 2019
    Publication date: July 25, 2019
    Applicant: DENSO CORPORATION
    Inventor: Naoto KOBAYASHI
  • Patent number: 10305405
    Abstract: A subtractor subtracts an angular speed correction amount from a rotational speed command to obtain a corrected rotational speed command. An adder adds a second-axis current correction value to a ?c-axis current to obtain a corrected second-axis current. An angular ripple extraction unit obtains, from a rotational angle on a mechanical angle of a synchronous motor, a rotational angle difference being a ripple component of the rotational angle. An nth-order component extraction unit extracts nth-order components of a fundamental frequency of the rotational angle from the rotational angle difference. A torque conversion unit obtains nth-order components of an estimated value of vibration torque. A correction amount calculation unit obtains the second-axis current correction value using the nth-order components.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: May 28, 2019
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Minoru Kitou, Nobuki Kitano, Naoto Kobayashi, Hiroshi Hibino, Ryou Matsuyama
  • Patent number: 10293531
    Abstract: The object of the present invention is to effectively prevent the rust generation on a flange portion and to prevent the deformation of the flange portion due to the filling pressure of a molding material in the manufacture of a sealing device whereby a seal main body comprising a rubber-like elastic material and having a portion that covers both surfaces of the flange portion of a metal reinforcing ring is integrally formed on the reinforcing ring by means of a metal mold. To this end, the flange portion of the reinforcing ring is formed in advance with a shape which is distributed unevenly in the direction opposite the direction in which the flange portion is deformed from its original shape by the filling pressure of the molding material.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: May 21, 2019
    Assignee: NOK Corporation
    Inventors: Takuya Kato, Go Kanzaki, Kei Sasaki, Naoto Kobayashi
  • Patent number: 10243760
    Abstract: A communication device performs information communication through a communication line based on communication data specified by a CAN protocol. A communication necessity determination unit determines whether or not the information communication through the communication line is necessary based on external information obtained from an external device. When the information communication is necessary and a communication error is detected, a communication control unit stops the information communication during a fixed period and restarts the information communication after the fixed period elapses. When the information communication is unnecessary, the communication control unit stops transmitting communication data until a predetermined transmission restarting condition is satisfied.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: March 26, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUMITOMO WIRING SYSTEMS, LTD.
    Inventors: Yuta Ochiai, Hiroya Ando, Mitsutoshi Kato, Naoto Kobayashi