Patents by Inventor Tomohiko Yoshimura

Tomohiko Yoshimura 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: 20240396395
    Abstract: A stator for a rotating electric machine includes a stator core that includes multiple teeth extending from an inner circumferential surface of a cylindrical yoke, and multiple coils respectively provided around the respective teeth. A slot exists between teeth that are adjacent to each other in a circumferential direction of the yoke. The teeth each include a tooth extension having tooth side surfaces, which define the slots, and two flanges having flange surfaces that define the slots. An insulating member is arranged in each slot. The insulating members are each configured to support the corresponding coils in a state in which each coil is arranged at a radially outer side of a boundary between the corresponding tooth side surface and the corresponding flange surface.
    Type: Application
    Filed: April 30, 2024
    Publication date: November 28, 2024
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Noriyuki SUZUKI, Tomohiko YOSHIMURA
  • Publication number: 20240396408
    Abstract: A stator includes a stator core, coils, and a thermistor. The stator core includes a cylindrical yoke and multiple teeth extending from an inner circumferential surface of the yoke. The stator core includes slots each located between adjacent ones of the teeth in a circumferential direction of the yoke. The thermistor is configured to measure a temperature of the coils. A pillar-shaped insulating member is disposed in each slot. The insulating member is disposed in each slot between the coils, which are adjacent to each other in the circumferential direction. At least one of the insulating members includes a thermistor insertion hole that opens in an end face at an end in a lengthwise direction of the insulating member. The thermistor is held by the corresponding insulating member in a state of being inserted in the thermistor insertion hole.
    Type: Application
    Filed: May 1, 2024
    Publication date: November 28, 2024
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Noriyuki SUZUKI, Tomohiko YOSHIMURA
  • Publication number: 20240396393
    Abstract: A stator includes a stator core and coils. The stator core includes slots each located between two teeth that are adjacent to each other in the circumferential direction of a yoke. Each tooth includes a tooth extension extending from the inner circumferential surface of the yoke, and two flanges projecting from a distal end of the tooth extension toward opposite sides in the circumferential direction. An insulating member is disposed in each slot between the coils adjacent to each other in the circumferential direction. The insulating members each include a supported surface that extends over a slot opening. The slot opening is a gap between ones of the flanges adjacent to each other in the circumferential direction. The supported surface is supported by both of the flanges that are adjacent to each other in the circumferential direction. The supported surface includes a recess that is open toward the slot opening.
    Type: Application
    Filed: May 1, 2024
    Publication date: November 28, 2024
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Noriyuki SUZUKI, Tomohiko YOSHIMURA
  • Publication number: 20180321622
    Abstract: An image heating apparatus includes first and second rotatable members configured to form a nip for heating a toner image on a sheet, a rotatable rubbing member configured to rub an outer surface of the first rotatable member, and a contact-and-separation mechanism configured to move the rotatable rubbing member toward and away from the first rotatable member. A controller is configured to control a temperature of the first rotatable member, depending on a number of times a rubbing process is executed by the rotatable rubbing member, or a total time of contact of the rotatable rubbing member with the first rotatable member, when the rubbing process is executed.
    Type: Application
    Filed: July 13, 2018
    Publication date: November 8, 2018
    Inventor: Tomohiko Yoshimura
  • Patent number: 10031448
    Abstract: An image heating apparatus includes a first rotatable member and a second rotatable member configured to form a nip for heating a toner image on a sheet, a rotatable rubbing member configured to rub an outer surface of the first rotatable member, a motor configured to move the rotatable rubbing member from a position in which the rotatable rubbing member is spaced from the first rotatable member toward a position in which the rotatable rubbing member contacts the first rotatable member, when a rubbing process is executed by the rotatable rubbing member, and a controller configured to control a temperature of the first rotatable member, depending on a number of times the rubbing process is executed by the rotatable rubbing member, when the rubbing process is executed.
    Type: Grant
    Filed: February 22, 2016
    Date of Patent: July 24, 2018
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomohiko Yoshimura
  • Patent number: 9690238
    Abstract: An image heating apparatus includes first and second rotatable members configured to form a nip for heating a toner image on a sheet; a rotatable rubbing member configured to rub an outer surface of the first rotatable member; and a contact-and-separation mechanism configured to move the rotatable rubbing member toward and away from the first rotatable member. When the contact-and-separation mechanism executes a rubbing process, the contact-and-separation mechanism repeatedly executes alternately a first process for contacting the rotatable rubbing member with the first rotatable member and a second process for spacing the rotatable rubbing member from the first rotatable member.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: June 27, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomohiko Yoshimura
  • Patent number: 9671729
    Abstract: A heater includes: a substrate; and a plurality of electrode portions including first electrode portions electrically connectable with the first terminal and second electrode portions electrically connectable with the second terminal. The first electrode portion and the second electrode portion are arranged alternately with predetermined gaps in a longitudinal direction of the substrate. The heater also includes a plurality of heat generating portions provided between adjacent ones of the electrode portions so as to electrically connect between adjacent electrode portions. The heat generating portions are capable of generating heat by the electric power supply between adjacent electrode portions. With respect to a widthwise direction of the substrate, the distance between ends of the adjacent electrode portions is larger than the width of the plurality of heat generating portions.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: June 6, 2017
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomohiko Yoshimura
  • Patent number: 9517888
    Abstract: An endless belt for heating an image on a sheet includes a resistance layer for generating heat by the supply of electric power; a first ring member provided in a widthwise end side of the endless belt so as to be electrically connected with the resistance layer; a second ring member, one of the first and second ring members being fitted around the other with the resistance layer sandwiched therebetween; and a fixing member configured to fix the first and second ring members to each other so that the first and second ring members are rotated integrally with the resistance layer.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: December 13, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koji Takematsu, Tomohiko Yoshimura
  • Publication number: 20160170342
    Abstract: An image heating apparatus includes first and second rotatable members configured to form a nip for heating a toner image on a sheet; a rotatable rubbing member configured to rub an outer surface of the first rotatable member; and a contact-and-separation mechanism configured to move the rotatable rubbing member toward and away from the first rotatable member. When the contact-and-separation mechanism executes a rubbing process, the contact-and-separation mechanism repeatedly executes alternately a first process for contacting the rotatable rubbing member with the first rotatable member and a second process for spacing the rotatable rubbing member from the first rotatable member.
    Type: Application
    Filed: February 19, 2016
    Publication date: June 16, 2016
    Inventor: Tomohiko Yoshimura
  • Publication number: 20160170344
    Abstract: An image heating apparatus includes first and second rotatable members configured to form a nip for heating a toner image on a sheet; a rotatable rubbing member configured to rub an outer surface of the first rotatable member; and a contact-and-separation mechanism configured to move the rotatable rubbing member toward and away from the first rotatable member; and a controller configured to control a temperature of the first rotatable member, depending on a number of times of a rubbing process executed by the rotable rubbing member or a total time of contact of the rotatable rubbing member with the first rotatable member, when the rubbing process is executed.
    Type: Application
    Filed: February 22, 2016
    Publication date: June 16, 2016
    Inventor: Tomohiko Yoshimura
  • Publication number: 20160070217
    Abstract: A heater includes a substrate; a plurality of electrode portions including first electrode portions electrically connectable with the first terminal and second electrode portions electrically connectable with the second terminal, the first electrode portion and the second electrode portion being arranged alternately with predetermined gaps in a longitudinal direction of the substrate; and a plurality of heat generating portions provided between adjacent ones of the electrode portions so as to electrically connect between adjacent electrode portions. The heat generating portions are capable of generating heat by the electric power supply between adjacent electrode portions. With respect to a widthwise direction of the substrate, a distance between ends of the adjacent electrode portions is larger than a width of the plurality of heat generating portions.
    Type: Application
    Filed: September 3, 2015
    Publication date: March 10, 2016
    Inventor: Tomohiko Yoshimura
  • Patent number: 8977172
    Abstract: A fixing apparatus includes first and second fixing rotatable members configured to fix a toner image on a sheet at a nip portion therebetween, a rubbing rotatable member configured to rub an outer surface of the first fixing rotatable member, a moving mechanism configured to move the rubbing rotatable member between a contact position, in which the rubbing rotatable member is in contact with the outer surface of the first fixing rotatable member, and a separate position, in which the rubbing rotatable member is away from the outer surface of the first fixing rotatable member, and an air blowing mechanism configured to blow air to between the rubbing rotatable member and the first fixing rotatable member at least when the rubbing rotatable member moves from the contact position to the separate position.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: March 10, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomohiko Yoshimura
  • Patent number: 8971735
    Abstract: A belt failure detecting mechanism includes a rocking arm connected to a ground contact portion and an urging member configured to urge one end of the rocking arm against an inner surface of an end of a heating belt. When the end of the heating belt is not broken, the end of the rocking arm is in contact with the inner surface of the end of the heating belt, and the other end of the rocking arm does not contact to a detection switch so that an electric power is supplied to a heating device. When the end of the heating belt is broken, the end of the rocking arm is displaced to an outer side of the heating belt so that the other end of the rocking arm contacts to an electric element so that a fuse is blown to stop the electric power supplied to the heating device.
    Type: Grant
    Filed: April 9, 2013
    Date of Patent: March 3, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Tomohiko Yoshimura
  • Publication number: 20140318931
    Abstract: An endless belt for heating an image on a sheet includes a resistance layer for generating heat by supply of electric power; a first ring member provided in a widthwise end side of the endless belt so as to be electrically connected with the resistance layer; a second ring member, wherein one of the first and second ring members is fitted around the other with the resistance layer sandwiched therebetween; and a fixing member configured to fix the first and second ring member to each other so that the first and second ring members are rotated integrally with the resistance layer.
    Type: Application
    Filed: April 28, 2014
    Publication date: October 30, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Koji Takematsu, Tomohiko Yoshimura
  • Publication number: 20130279926
    Abstract: A belt failure detecting mechanism includes a rocking arm connected to a ground contact portion and an urging member configured to urge one end of the rocking arm against an inner surface of an end of a heating belt. When the end of the heating belt is not broken, the end of the rocking arm is in contact with the inner surface of the end of the heating belt, and the other end of the rocking arm does not contact to a detection switch so that an electric power is supplied to a heating device. When the end of the heating belt is broken, the end of the rocking arm is displaced to an outer side of the heating belt so that the other end of the rocking arm contacts to an electric element so that a fuse is blown to stop the electric power supplied to the heating device.
    Type: Application
    Filed: April 9, 2013
    Publication date: October 24, 2013
    Applicant: Canon Kabushiki Kaisha
    Inventor: Tomohiko Yoshimura
  • Publication number: 20130266349
    Abstract: A fixing apparatus includes first and second fixing rotatable members configured to fix a toner image on a sheet at a nip portion therebetween, a rubbing rotatable member configured to rub an outer surface of the first fixing rotatable member, a moving mechanism configured to move the rubbing rotatable member between a contact position, in which the rubbing rotatable member is in contact with the outer surface of the first fixing rotatable member, and a separate position, in which the rubbing rotatable member is away from the outer surface of the first fixing rotatable member, and an air blowing mechanism configured to blow air to between the rubbing rotatable member and the first fixing rotatable member at least when the rubbing rotatable member moves from the contact position to the separate position.
    Type: Application
    Filed: March 12, 2013
    Publication date: October 10, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Tomohiko Yoshimura