Patents by Inventor Yuji Hayashi

Yuji Hayashi 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: 20210066678
    Abstract: A device includes a battery case (42) that stores a battery (62A or 62B), a lock mechanism (133) that is capable of fixing and holding the stored battery (62A or 62B) in the battery case (42), and an operation member (44) that is capable of performing switching operation of the lock mechanism (133) between a battery-fixed state and a non-battery-fixed state. The lock mechanism (133) includes a movable block (160) which is supported by the battery case (42) in a displaceable manner. The movable block (160) has a battery restriction portion (160b or 160c) which restricts displacement of the battery (62A or 62B) in a separation direction in a state of being displaced to a battery fixing position, and a holding force receiving portion (160d) which receives a holding force for maintaining the movable block (160) at the battery fixing position from the operation member (44) in a state where the operation member (44) is operated within a predetermined positional range.
    Type: Application
    Filed: September 29, 2017
    Publication date: March 4, 2021
    Inventors: Katsuyuki Okubo, Yasuyuki Maeda, Akira Kuramochi, Takeo Numata, Michito Arai, Yuji Hayashi, Tadashi Minyu, Natsuko Sota, Yasushi Takahashi, Takaaki Kato, Kazuo Tsuji, Makoto Mitsukawa, Etsumi Handa, Nobuo Shigemizu, Yasuhiro Fukuyoshi, Yukio Akai
  • Publication number: 20210048772
    Abstract: An image forming apparatus includes: an image former that forms a toner image on paper using a toner containing a wax component; a fixer that fixes the toner image formed on the paper; a cleaner including a cleaning roller that contacts a surface of the paper that has passed through the fixer and causes the wax component to adhere to an outer peripheral surface of the cleaning roller; a cooler that supplies air at least over the outer peripheral surface of the cleaning roller; and a hardware processor that controls operations of the cleaner and the cooler.
    Type: Application
    Filed: July 7, 2020
    Publication date: February 18, 2021
    Applicant: KONICA MINOLTA, INC.
    Inventor: Yuji HAYASHI
  • Publication number: 20210036599
    Abstract: The control apparatus is used with the electrical power converter working to an inputted one of ac voltage and a terminal-to-terminal voltage at a capacitor into the other. The control apparatus calculates a sine-wave command value for a reactor current based on the ac voltage and an amplitude command value indicating an amplitude of the reactor current. The control apparatus also operates switches SW in peak-current mode control to bring the reactor current into agreement with a command value for the reactor current to which a current correction value is added. The control apparatus sets the current correction value to include a component of fluctuation in the terminal-to-terminal voltage at the capacitor based on the ac voltage Vac.
    Type: Application
    Filed: October 19, 2020
    Publication date: February 4, 2021
    Applicant: DENSO CORPORATION
    Inventors: Seiji IYASU, Yuji HAYASHI, Yuichi HANDA
  • Publication number: 20210028717
    Abstract: In a control apparatus for a power converter, a current obtainer obtains a current flowing through an inductor as an inductor current, and an alternating-current voltage obtainer obtains an alternating-current voltage. A drive signal outputting unit generates, based on the alternating-current voltage obtained by the voltage obtainer, a sinusoidal command. The drive signal outputting unit performs peak-current mode control to output a drive signal that controls switching of the drive switch to thereby cause the inductor current to follow the sinusoidal command. A delay unit delays, for one switching cycle of the drive switch, an off-switching timing of the drive switch in accordance with the alternating-current voltage. The drive signal defines the off-switching timing of the switch.
    Type: Application
    Filed: October 9, 2020
    Publication date: January 28, 2021
    Applicant: DENSO CORPORATION
    Inventors: Seiji IYASU, Yuji HAYASHI, Yuichi HANDA
  • Patent number: 10897208
    Abstract: A power conversion apparatus performs power conversion among at least a first device, a second device, and a third device. The power conversion apparatus includes a primary converter configured to perform power conversion between the first device and second device. The primary converter includes a first switch, a second switch, a third switch, a fourth switch, and a capacitor. The second switch, the third switch, the fourth switch, and the capacitor are connected in full bridge configuration to constitute a full bridge converter.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: January 19, 2021
    Assignees: DENSO CORPORATION, IBARAKI UNIVERSITY
    Inventors: Seiji Iyasu, Yuji Hayashi, Masatoshi Uno
  • Publication number: 20210009088
    Abstract: A vehicle-mounted sensor cleaning device cleans a sensing surface of a vehicle-mounted sensor. The vehicle-mounted sensor cleaning device includes a gas nozzle spraying a gas toward the sensing surface, a gas supply device supplying the gas to the gas nozzle, and a control section controlling operation of the gas supply device. A predetermined value is set in the control section, for indicating an abnormal state of detection accuracy of the vehicle-mounted sensor based on detection accuracy information of an object which is obtained from the vehicle-mounted sensor. A gas supply threshold value is also set, for use in operating the gas supply device to direct a supply of the gas toward the sensing surface before the detection accuracy information becomes equal to or lower than the predetermined value. If the detection accuracy information has become lower than the gas supply threshold value, the control section operates the gas supply device.
    Type: Application
    Filed: September 24, 2020
    Publication date: January 14, 2021
    Inventors: Yuji HAYASHI, Kohei TOYAMA
  • Patent number: 10848068
    Abstract: A control device is applied to a power conversion system including a first power conversion device and a second power conversion device connected in parallel with a common power supply target. The control device acquires a load output including a load current or power to be supplied to the power supply target, and control operation of the first power conversion device and the second power conversion device based on at least any of a voltage parameter including any of an input voltage and an output voltage and the load output.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: November 24, 2020
    Assignee: DENSO CORPORATION
    Inventors: Seiji Iyasu, Yuichi Handa, Yuji Hayashi, Kaoru Koketsu
  • Patent number: 10814838
    Abstract: An onboard optical sensor cleaning device ejects fluid against a sensing surface of an onboard optical sensor installed in a vehicle and removes foreign matter from the sensing surface. The onboard optical sensor cleaning device includes a cleaning liquid ejection port that ejects supplied cleaning liquid and an air ejection port that ejects supplied air. The cleaning liquid ejection port and the air ejection port are independent from each other, an air ejection axis of the air ejection port is set so that the ejected air mixes with the cleaning liquid ejected from the cleaning liquid ejection port and to be directed toward the sensing surface.
    Type: Grant
    Filed: February 7, 2017
    Date of Patent: October 27, 2020
    Assignee: DENSO CORPORATION
    Inventors: Eiji Ina, Keita Saito, Yuji Hayashi, Keita Kawai, Tomoyuki Kikuta
  • Publication number: 20200293845
    Abstract: In a printing device, a supply portion is configured to convey a tape in its longitudinal direction. The tape includes: a plurality of labels arranged continuously in the longitudinal direction; and a plurality of storage elements provided on respective ones of the plurality of labels. A first storage element is provided on a first label and configured to store first authentication data. The second storage element is provided on a second label and configured to store second authentication data. A printing portion is configured to print on the plurality of labels. A controller is configured to perform: reading the first authentication data from the first storage element and the second authentication data from the second storage element by a reading portion; and determining whether the first authentication data is correlated to the second authentication data to meet an authentication condition.
    Type: Application
    Filed: March 10, 2020
    Publication date: September 17, 2020
    Inventors: Kentaro Murayama, Kohei Terada, Yuji Hayashi
  • Publication number: 20200279252
    Abstract: An information processing apparatus includes an input unit, a setting unit, and an inhibition unit. The input unit inputs designation of a coupon that is associated with a benefit provided for a settlement person of a transaction. The setting unit sets, as an application coupon, the coupon that is a target of the designation input by the input unit. The inhibition unit inhibits the setting unit from setting the coupon that is the target of the designation input by the input unit as the application coupon when the coupon that is the target of the designation is not allowed to be used in combination with a previously set application coupon.
    Type: Application
    Filed: November 20, 2019
    Publication date: September 3, 2020
    Applicant: TOSHIBA TEC KABUSHIKI KAISHA
    Inventor: Yuji HAYASHI
  • Patent number: 10763669
    Abstract: A control device is applied to a power conversion system including a first DDC and a second DDC connected in parallel with a common power supply target. The control device performs the equalization control of correcting, with an output correction voltage, at least any of a voltage command value of the first DDC and a voltage command value of the second DDC to equalize an output current. Moreover, while the equalization control is being performed, it is determined on which one of an output side of the first DDC or an output side of the second DDC abnormal disconnection has been caused based on the output correction voltage.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: September 1, 2020
    Assignee: DENSO CORPORATION
    Inventors: Seiji Iyasu, Yuji Hayashi, Yuichi Handa
  • Publication number: 20200251994
    Abstract: A control device is applied to a power conversion system including a first power conversion device and a second power conversion device connected in parallel with a common power supply target. The control device acquires a load output including a load current or power to be supplied to the power supply target, and control operation of the first power conversion device and the second power conversion device based on at least any of a voltage parameter including any of an input voltage and an output voltage and the load output.
    Type: Application
    Filed: April 21, 2020
    Publication date: August 6, 2020
    Applicant: DENSO CORPORATION
    Inventors: Seiji IYASU, Yuichi HANDA, Yuji HAYASHI, Kaoru KOKETSU
  • Patent number: 10676322
    Abstract: Provided is a drip-proof device for a passenger conveyer, which is capable of improving working efficiency of maintenance work performed in a machine room. The drip-proof device for a passenger conveyor includes gutters, which are provided to a floor plate for opening and closing an opening portion of a machine room, and are each configured to receive water passing through a gap between wall surfaces of the opening portion and the floor plate, and a gutter displacement device configured to displace the gutters. Each of the gutters is displaced between a water-receiving position for receiving the water passing through the gap and a receiving position for allowing removal of the floor plate through the opening portion. The gutter displacement device includes a rotary member configured to rotate through an operation of the rotary member- and rods configured to displace the gutters through the rotation of the rotary member.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: June 9, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventor: Yuji Hayashi
  • Publication number: 20200161981
    Abstract: A power conversion apparatus performs power conversion among at least a first device, a second device, and a third device. The power conversion apparatus includes a primary converter configured to perform power conversion between the first device and second device. The primary converter includes a first switch, a second switch, a third switch, a fourth switch, and a capacitor. The second switch, the third switch, the fourth switch, and the capacitor are connected in full bridge configuration to constitute a full bridge converter.
    Type: Application
    Filed: November 8, 2019
    Publication date: May 21, 2020
    Applicants: DENSO CORPORATION, IBARAKI UNIVERSITY
    Inventors: Seiji IYASU, Yuji HAYASHI, Masatoshi UNO
  • Publication number: 20200148509
    Abstract: Provided is a drip-proof device for a passenger conveyer, which is capable of improving working efficiency of maintenance work performed in a machine room. The drip-proof device for a passenger conveyor includes gutters, which are provided to a floor plate for opening and closing an opening portion of a machine room, and are each configured to receive water passing through a gap between wall surfaces of the opening portion and the floor plate, and a gutter displacement device configured to displace the gutters. Each of the gutters is displaced between a water-receiving position for receiving the water passing through the gap and a receiving position for allowing removal of the floor plate through the opening portion. The gutter displacement device includes a rotary member configured to rotate through an operation of the rotary member and rods configured to displace the gutters through the rotation of the rotary member.
    Type: Application
    Filed: June 21, 2017
    Publication date: May 14, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventor: Yuji HAYASHI
  • Patent number: 10637370
    Abstract: In an apparatus for controlling a DC-AC converter including a reactor and a plurality of drive switches and configured to convert DC power supplied via input terminals into AC power and supply the AC power to an AC power source connected to output terminals. In the apparatus, a current corrector is configured to set a current correction value including a harmonic component for a frequency component of a supply voltage of the AC power source that has minima at zero crossings where the supply voltage is zero and superimpose the current correction value on a sinusoidal commanded current generated based on the supply voltage of the AC power source, thereby generating a commanded current after correction. A current controller is configured to operate the drive switches using peak current mode control to control the reactor current to the commanded current after correction.
    Type: Grant
    Filed: January 22, 2019
    Date of Patent: April 28, 2020
    Assignee: DENSO CORPORATION
    Inventors: Seiji Iyasu, Yuji Hayashi, Yuichi Handa
  • Publication number: 20200112258
    Abstract: A power conversion apparatus connected to three or more voltage units, includes three or more power conversion circuits connected to respective units of the three or more voltage units; and a multiport transformer connected to the three or more power conversion circuits at mutually different ports, in which at least one voltage unit of the three or more voltage units is an electrical load.
    Type: Application
    Filed: September 30, 2019
    Publication date: April 9, 2020
    Applicant: DENSO CORPORATION
    Inventors: Shuji KURAUCHI, Yuichi HANDA, Seiji IYASU, Yuji HAYASHI
  • Publication number: 20200112260
    Abstract: An electric power conversion apparatus includes a main DC-to-DC converter and an electric power conversion unit. The main DC-to-DC converter is configured to perform voltage conversion between a first-voltage section that operates at a first voltage and a second-voltage section that operates at a second voltage. The electric power conversion unit is connected with the first-voltage section and includes an electric power conversion section and an auxiliary DC-to-DC converter. The electric power conversion section is configured to perform electric power conversion between the first-voltage section and a third-voltage section that operates at a third voltage. The auxiliary DC-to-DC converter is connected in parallel with the main DC-to-DC converter. The auxiliary DC-to-DC converter shares a common configuration section with the electric power conversion section. The common configuration section is constituted of at least part of the electric power conversion section.
    Type: Application
    Filed: October 7, 2019
    Publication date: April 9, 2020
    Applicant: DENSO CORPORATION
    Inventors: Yoshiki SUZUKI, Shuji KURAUCHI, Yuichi HANDA, Seiji IYASU, Yuji Hayashi
  • Patent number: 10615680
    Abstract: In a control apparatus for a power converter, a current obtainer obtains a current flowing through an inductor as an inductor current, and a voltage obtainer obtains an alternating-current voltage. A slope compensation unit generates, based on the alternating-current voltage obtained by the voltage obtainer, a slope compensation signal having a slope that depends on the alternating-current voltage, and adds the slope compensation signal to the inductor current obtained by the current obtainer. A current controller controls on-off switching operations of a switch in a peak current mode to thereby cause the inductor current, to which the slope compensation signal has been added, to follow a sinusoidal command current that depends on the alternating-current voltage.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: April 7, 2020
    Assignee: DENSO CORPORATION
    Inventors: Seiji Iyasu, Yuji Hayashi, Yuichi Handa
  • Patent number: 10491136
    Abstract: An electric power conversion device has an electric power converter and a control device. The control device adjusts an output voltage of the electric power converter to approach a first current flowing a first drive switch to an instruction current during a first period in which an input voltage supplied from an AC power source has a positive polarity, and adjusts the output voltage of the electric power converter to approach a second current flowing a second drive switch to the instruction current during a second period in which the input voltage supplied from the AC power source has a negative polarity. The control device operates a switch arranged in a second current sensor during the first period, and operates a switch arranged in a first current sensor during the second period.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: November 26, 2019
    Assignee: DENSO CORPORATION
    Inventors: Seiji Iyasu, Yuji Hayashi, Yuichi Handa