Patents by Inventor Toshiya Yoshida

Toshiya Yoshida 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: 20210298160
    Abstract: An extreme ultraviolet light generation apparatus may include a chamber device, a concentrating mirror, a central gas supply port configured to supply gas along a focal line passing through a first focal point and a second focal point from the center side of the reflection surface, and a first peripheral gas supply port disposed at a peripheral portion of the reflection surface and configured to supply gas in a direction from the outer side of the reflection surface toward the inner side of the reflection surface. The first peripheral gas supply port may supply gas, when viewed along the focal line, in an inclined direction inclined to a tangential direction side of the peripheral portion at the peripheral portion where the first peripheral gas supply port is located with respect to a first straight line passing through the first peripheral gas supply port and the focal line.
    Type: Application
    Filed: January 22, 2021
    Publication date: September 23, 2021
    Applicant: Gigaphoton Inc.
    Inventors: Takayuki OSANAI, Atsushi UEDA, Koichiro KOGE, Akihiro OHSAWA, Toshiya SHINTANI, Yoshiaki YOSHIDA, Yuki ISHIDA, Yosuke TAKADA
  • Publication number: 20210254565
    Abstract: A position sensor of the present invention includes: a magnet that moves together with a moving body; a magnetic sensor that detects a magnetic flux generated by the magnet; and a detector that detects an anomaly of the magnetic sensor based on a detection value detected by the magnetic sensor. The magnetic sensor is set so as to detect the detection value taking a value on a locus preset in accordance with a position of the moving body, and the locus is set so that a change rate of the detection value corresponding to change of the position of the moving body differs for each of a plurality of sections set within a movement range of the moving body. The detector detects the anomaly of the magnetic sensor based on a relation between the detection value and a comparison value that is a value corresponding to the locus.
    Type: Application
    Filed: September 22, 2020
    Publication date: August 19, 2021
    Applicant: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Shoji KISHI, Toshiya YOSHIDA, Takayuki OTANI, Toshikazu MURATA
  • Patent number: 10900769
    Abstract: A grip, a magnet 140, and a substrate 150 are included. The grip is rotatable between positions where a throttle is fully closed and a position where the throttle is fully open with a rotating shaft as a center. The magnet 140 rotates integrally with the grip. The substrate 150 includes a plurality of Hall elements 165 and 175, and is fixed to face the magnet 140. The plurality of Hall elements 165 and 175 are disposed in such a way that magnetic flux densities different from each other are respectively applied to the plurality of Hall elements 165 and 175 when an external magnetic field acts in a state where the grip is located in the position where the throttle is fully closed.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: January 26, 2021
    Assignee: TOYO DENSO CO., LTD.
    Inventors: Shoji Kishi, Toshiya Yoshida
  • Patent number: 10859006
    Abstract: Provided is a throttle grip device that can stably generate an operation feeling and achieves downsizing itself. A throttle grip device includes a throttle grip attached to a handlebar, an accelerator position sensor, and a return spring. The accelerator position sensor and the return spring are accommodated inside the handlebar so as to be arranged tandemly along a straight line. The accelerator position sensor includes a cylindrical inner rotor in which a plurality of magnetic poles is magnetized along a circumferential direction, a magnetic material-made outer case configured to accommodate the inner rotor, and a sensor IC disposed facing a sensor side end of the inner rotor and offset from a central axis of the inner rotor. The inner rotor rotates in conjunction with the throttle grip.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: December 8, 2020
    Assignee: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Shoji Kishi, Toshiya Yoshida, Takayuki Otani
  • Publication number: 20200018242
    Abstract: Provided is a throttle grip device that can stably generate an operation feeling and achieves downsizing itself. A throttle grip device includes a throttle grip attached to a handlebar, an accelerator position sensor, and a return spring. The accelerator position sensor and the return spring are accommodated inside the handlebar so as to be arranged vertically on a straight line. The accelerator position sensor includes a cylindrical inner rotor in which a plurality of magnetic poles is magnetized along a circumferential direction, a magnetic material-made outer case configured to accommodate the inner rotor, and a sensor IC disposed facing a sensor side end of the inner rotor and offset from a central axis of the inner rotor. The inner rotor rotates in conjunction with the throttle grip.
    Type: Application
    Filed: July 10, 2019
    Publication date: January 16, 2020
    Inventors: Shoji KISHI, Toshiya YOSHIDA, Takayuki OTANI
  • Patent number: 10302458
    Abstract: A rotation angle detection sensor includes a magnet body subjected to magnetization in an in-plane direction, a first Hall element and a second Hall element separated from each other and arranged offset to one of spaces divided by an imaginary plane including a rotation axis, and a third Hall element located in a position away from a straight line passing through the first Hall element and the second Hall element. A storage section stores a rotation angle that is related to electric signals having a phase difference therebetween, among electric signals of the first Hall element, the second Hall element, and the third Hall element. A detection section detects the electric signals of the first Hall element, the second Hall element, and the third Hall element and obtains from the storage section the rotation angle that is related to the detected electric signals.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: May 28, 2019
    Assignee: Toyo Dense Co., Ltd.
    Inventors: Toshiya Yoshida, Shoji Kishi
  • Patent number: 10295372
    Abstract: A magnetic rotation detection apparatus which is capable of suppressing occurrence of assembly failure of components. A gear position sensor 10 is provided with a sensor unit 12 including a Hall element 20, a magnet shaft 11 including a magnet 17, a case 14 housing the sensor unit 12 and the magnet shaft 11, and an inner O-ring 24 sealing a gap between the sensor unit 12 and the case 14. The case 14 includes a metal bearing 19 to support the magnet shaft 11, and the magnet shaft 11 includes a molded portion 18 to fix the magnet 17. A thrust plate 22 is arranged between the molded portion 18 and a base plate 21 (circuit board) of the sensor unit 12, and a spring mechanism 26 is arranged to bias the molded portion 18 to the thrust plate 22. A minute gap is present between the metal bearing 19 and the magnet shaft 11.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: May 21, 2019
    Assignee: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Shoji Kishi, Toshiya Yoshida
  • Publication number: 20190094008
    Abstract: A grip, a magnet 140, and a substrate 150 are included. The grip is rotatable between positions where a throttle is fully closed and a position where the throttle is fully open with a rotating shaft as a center. The magnet 140 rotates integrally with the grip. The substrate 150 includes a plurality of Hall elements 165 and 175, and is fixed to face the magnet 140. The plurality of Hall elements 165 and 175 are disposed in such a way that magnetic flux densities different from each other are respectively applied to the plurality of Hall elements 165 and 175 when an external magnetic field acts in a state where the grip is located in the position where the throttle is fully closed.
    Type: Application
    Filed: September 17, 2018
    Publication date: March 28, 2019
    Inventors: Shoji KISHI, Toshiya YOSHIDA
  • Publication number: 20170343383
    Abstract: A magnetic rotation detection apparatus which is capable of suppressing occurrence of assembly failure of components. A gear position sensor 10 is provided with a sensor unit 12 including a Hall element 20, a magnet shaft 11 including a magnet 17, a case 14 housing the sensor unit 12 and the magnet shaft 11, and an inner O-ring 24 sealing a gap between the sensor unit 12 and the case 14. The case 14 includes a metal bearing 19 to support the magnet shaft 11, and the magnet shaft 11 includes a molded portion 18 to fix the magnet 17. A thrust plate 22 is arranged between the molded portion 18 and a base plate 21 (circuit board) of the sensor unit 12, and a spring mechanism 26 is arranged to bias the molded portion 18 to the thrust plate 22. A minute gap is present between the metal bearing 19 and the magnet shaft 11.
    Type: Application
    Filed: May 26, 2017
    Publication date: November 30, 2017
    Applicant: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Shoji KISHI, Toshiya YOSHIDA
  • Publication number: 20170131120
    Abstract: A rotation angle detection sensor includes a magnet body subjected to magnetization in an in-plane direction, a first Hall element and a second Hall element separated from each other and arranged offset to one of spaces divided by an imaginary plane including a rotation axis, and a third Hall element located in a position away from a straight line passing through the first Hall element and the second Hall element. A storage section stores a rotation angle that is related to electric signals having a phase difference therebetween, among electric signals of the first Hall element, the second Hall element, and the third Hall element. A detection section detects the electric signals of the first Hall element, the second Hall element, and the third Hall element and obtains from the storage section the rotation angle that is related to the detected electric signals.
    Type: Application
    Filed: November 3, 2016
    Publication date: May 11, 2017
    Inventors: Toshiya YOSHIDA, Shoji KISHI
  • Patent number: 7977839
    Abstract: An energy-saving magnetic bearing device with no bias current for making the relation between the excitation current and the magnetic force of the electromagnet linear is provided. In a magnetic bearing device for supporting a rotor 1 serving as the magnetic piece in a levitating state allowing free rotation at a specified position by the magnetic force of a pair of electromagnets 2, 3, the electromagnets 2, 3 are constituted to interpose the rotor 1 and face each other. A driver 204 is a PWM (pulse width modulation) type driver for controlling the excitation current in the electromagnets 2, 3 by modulating the pulse width of a voltage driven at a specified carrier frequency fc, and includes a resonator means for electrically resonating at a frequency equal to the carrier frequency fc.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: July 12, 2011
    Assignee: Ebara Corporation
    Inventors: Toshimitsu Barada, Toshiya Yoshida
  • Patent number: 7944104
    Abstract: A magnetic bearing apparatus supports a rotating object using magnetic levitation by a magnetic force of electromagnets. The magnetic bearing apparatus includes a PWM driver configured to supply exciting currents to the electromagnets, a driver power source configured to drive the PWM driver, and a displacement error signal removing section configured to extract a displacement error signal of the displacement information from a current flowing through the driver power source and to remove the displacement error signal from the displacement information.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: May 17, 2011
    Assignee: Ebara Corporation
    Inventors: Toshimitsu Barada, Toshiya Yoshida
  • Publication number: 20110012456
    Abstract: An energy-saving magnetic bearing device with no bias current for making the relation between the excitation current and the magnetic force of the electromagnet linear is provided. In a magnetic bearing device for supporting a rotor 1 serving as the magnetic piece in a levitating state allowing free rotation at a specified position by the magnetic force of a pair of electromagnets 2, 3, the electromagnets 2, 3 are constituted to interpose the rotor 1 and face each other. A driver 204 is a PWM (pulse width modulation) type driver for controlling the excitation current in the electromagnets 2, 3 by modulating the pulse width of a voltage driven at a specified carrier frequency fc, and includes a resonator means for electrically resonating at a frequency equal to the carrier frequency fc.
    Type: Application
    Filed: September 28, 2010
    Publication date: January 20, 2011
    Applicant: EBARA CORPORATION
    Inventors: Toshimitsu Barada, Toshiya Yoshida
  • Patent number: 7859241
    Abstract: A photovoltaic power generation controller, in which minute power change is detected even with a low-resolution AD converter, thereby being capable of performing maximum power point tracking control with high accuracy, is provided.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: December 28, 2010
    Assignee: Tokyo Denki University
    Inventors: Toshiya Yoshida, Katsumi Ohniwa, Michio Ohtsubo
  • Patent number: 7830056
    Abstract: An energy-saving magnetic bearing device with no bias current for making the relation between the excitation current and the magnetic force of the electromagnet linear is provided. In a magnetic bearing device for supporting a rotor 1 serving as the magnetic piece in a levitating state allowing free rotation at a specified position by the magnetic force of a pair of electromagnets 2, 3, the electromagnets 2, 3 are constituted to interpose the rotor 1 and face each other. A driver 204 is a PWM (pulse width modulation) type driver for controlling the excitation current in the electromagnets 2, 3 by modulating the pulse width of a voltage driven at a specified carrier frequency fc, and includes a resonator means for electrically resonating at a frequency equal to the carrier frequency fc.
    Type: Grant
    Filed: July 4, 2006
    Date of Patent: November 9, 2010
    Assignee: Ebara Corporation
    Inventors: Toshimitsu Barada, Toshiya Yoshida
  • Publication number: 20090189469
    Abstract: A magnetic bearing apparatus supports a rotating object using magnetic levitation by a magnetic force of electromagnets. The magnetic bearing apparatus includes a PWM driver configured to supply exciting currents to the electromagnets, a driver power source configured to drive the PWM driver, and a displacement error signal removing section configured to extract a displacement error signal of the displacement information from a current flowing through the driver power source and to remove the displacement error signal from the displacement information.
    Type: Application
    Filed: January 23, 2009
    Publication date: July 30, 2009
    Applicant: EBARA CORPORATION
    Inventors: Toshimitsu BARADA, Toshiya YOSHIDA
  • Publication number: 20090115393
    Abstract: A photovoltaic power generation controller, in which minute power change is detected even with a low-resolution AD converter, thereby being capable of performing maximum power point tracking control with high accuracy, is provided.
    Type: Application
    Filed: August 14, 2008
    Publication date: May 7, 2009
    Inventors: Toshiya Yoshida, Katsumi Ohniwa, Michio Ohtsubo
  • Publication number: 20090096302
    Abstract: An energy-saving magnetic bearing device with no bias current for making the relation between the excitation current and the magnetic force of the electromagnet linear is provided. In a magnetic bearing device for supporting a rotor 1 serving as the magnetic piece in a levitating state allowing free rotation at a specified position by the magnetic force of a pair of electromagnets 2, 3, the electromagnets 2, 3 are constituted to interpose the rotor 1 and face each other. A driver 204 is a PWM (pulse width modulation) type driver for controlling the excitation current in the electromagnets 2, 3 by modulating the pulse width of a voltage driven at a specified carrier frequency fc, and includes a resonator means for electrically resonating at a frequency equal to the carrier frequency fc.
    Type: Application
    Filed: July 4, 2006
    Publication date: April 16, 2009
    Applicant: EBARA CORPORATION
    Inventors: Toshimitsu Barada, Toshiya Yoshida
  • Publication number: 20070137688
    Abstract: A photovoltaic power generator which outputs power generated by a solar battery panel through a DC-DC converter detects a time point at which a time differentiation value of output voltage of the solar battery panel substantially becomes zero, obtains power variation from the output power of the solar battery panel at each time point, controls the DC-DC converter based on the power variation, thereby swiftly and precisely tracking the maximum power point of the solar battery panel even when hysteresis loop (dynamic characteristic) is generated.
    Type: Application
    Filed: November 9, 2004
    Publication date: June 21, 2007
    Applicant: Tokyo Denki University
    Inventor: Toshiya Yoshida
  • Patent number: D729710
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: May 19, 2015
    Assignee: TOYO DENSO KABUSHIKI KAISHA
    Inventors: Hiroaki Iwata, Toshiya Yoshida