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).
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Publication number: 20240396395Abstract: 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: ApplicationFiled: April 30, 2024Publication date: November 28, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Noriyuki SUZUKI, Tomohiko YOSHIMURA
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Publication number: 20240396408Abstract: 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: ApplicationFiled: May 1, 2024Publication date: November 28, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Noriyuki SUZUKI, Tomohiko YOSHIMURA
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Publication number: 20240396393Abstract: 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: ApplicationFiled: May 1, 2024Publication date: November 28, 2024Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Noriyuki SUZUKI, Tomohiko YOSHIMURA
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Publication number: 20180321622Abstract: 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: ApplicationFiled: July 13, 2018Publication date: November 8, 2018Inventor: Tomohiko Yoshimura
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Patent number: 10031448Abstract: 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: GrantFiled: February 22, 2016Date of Patent: July 24, 2018Assignee: Canon Kabushiki KaishaInventor: Tomohiko Yoshimura
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Patent number: 9690238Abstract: 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: GrantFiled: February 19, 2016Date of Patent: June 27, 2017Assignee: Canon Kabushiki KaishaInventor: Tomohiko Yoshimura
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Patent number: 9671729Abstract: 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: GrantFiled: September 3, 2015Date of Patent: June 6, 2017Assignee: Canon Kabushiki KaishaInventor: Tomohiko Yoshimura
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Patent number: 9517888Abstract: 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: GrantFiled: April 28, 2014Date of Patent: December 13, 2016Assignee: Canon Kabushiki KaishaInventors: Koji Takematsu, Tomohiko Yoshimura
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Publication number: 20160170342Abstract: 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: ApplicationFiled: February 19, 2016Publication date: June 16, 2016Inventor: Tomohiko Yoshimura
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Publication number: 20160170344Abstract: 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: ApplicationFiled: February 22, 2016Publication date: June 16, 2016Inventor: Tomohiko Yoshimura
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Publication number: 20160070217Abstract: 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: ApplicationFiled: September 3, 2015Publication date: March 10, 2016Inventor: Tomohiko Yoshimura
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Patent number: 8977172Abstract: 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: GrantFiled: March 12, 2013Date of Patent: March 10, 2015Assignee: Canon Kabushiki KaishaInventor: Tomohiko Yoshimura
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Patent number: 8971735Abstract: 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: GrantFiled: April 9, 2013Date of Patent: March 3, 2015Assignee: Canon Kabushiki KaishaInventor: Tomohiko Yoshimura
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Publication number: 20140318931Abstract: 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: ApplicationFiled: April 28, 2014Publication date: October 30, 2014Applicant: CANON KABUSHIKI KAISHAInventors: Koji Takematsu, Tomohiko Yoshimura
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Publication number: 20130279926Abstract: 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: ApplicationFiled: April 9, 2013Publication date: October 24, 2013Applicant: Canon Kabushiki KaishaInventor: Tomohiko Yoshimura
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Publication number: 20130266349Abstract: 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: ApplicationFiled: March 12, 2013Publication date: October 10, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Tomohiko Yoshimura