Patents by Inventor Doutaro USUI
Doutaro USUI 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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Patent number: 10381911Abstract: A linear motor includes a movable element and a stator. The stator includes a pair of back yokes provided opposing each other such as to flank the movable element along a direction perpendicular to the movable element's axis of travel, a plurality of main pole magnets provided spaced apart from each other and paralleling the axis of travel, on respective inside lateral surfaces of the pair of back yokes, and first and second interpole magnets provided, adjoining along said axis of travel, in each of intervals between adjoining couples of the main pole magnets.Type: GrantFiled: February 15, 2016Date of Patent: August 13, 2019Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.Inventor: Doutaro Usui
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Patent number: 9899901Abstract: A flat coil includes at least first and second coil layers having the shape of a ring and stacked, each of the first and second coil layers includes a pair of linear portions facing each other in a first direction and a pair of end portions facing each other in a second direction crossing the first direction, and the flat coil is bent on at least one of the end portions. The flat coil is an ?-winding coil and is bent toward the first coil layer from the second coil layer. A first end face of the first coil layer in the second direction and a second end face of the second coil layer in the second direction are positioned on the same plane at the end portion to be bent.Type: GrantFiled: December 17, 2015Date of Patent: February 20, 2018Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Takashi Ikeda, Doutaro Usui, Kotaro Wada
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Patent number: 9887611Abstract: A linear motor includes a mover movable in a first direction and a stator. A yoke includes a pair of back yokes provided opposite to each other so as to sandwich the mover in a second direction perpendicular to the first direction. A plurality of field magnets are provided on an inner lateral surface of each of the pair of back yokes in the first direction. A pair of auxiliary magnets are provided (i) on end lateral surfaces of the back yokes and (ii) in the vicinity of the field magnets at the extreme end provided in the back yoke. A magnetic member is provided to surround the pair of auxiliary magnets.Type: GrantFiled: August 20, 2015Date of Patent: February 6, 2018Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Kotaro Wada, Doutaro Usui, Takashi Ikeda
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Publication number: 20160241120Abstract: A linear motor includes a movable element and a stator. The stator includes a pair of back yokes provided opposing each other such as to flank the movable element along a direction perpendicular to the movable element's axis of travel, a plurality of main pole magnets provided spaced apart from each other and paralleling the axis of travel, on respective inside lateral surfaces of the pair of back yokes, and first and second interpole magnets provided, adjoining along said axis of travel, in each of intervals between adjoining couples of the main pole magnets.Type: ApplicationFiled: February 15, 2016Publication date: August 18, 2016Inventor: Doutaro USUI
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Patent number: 9325222Abstract: A linear motor cooling structure for cooling a coil constituting a driving section of a linear motor includes a flat plate cooling section which forms a flow path for cooling water for cooling the coil in an inside between a plurality of flat plate members by overlapping the plurality of flat plate members, wherein the flat plate cooling section includes an inflow opening for inflow of the cooling water and an outflow opening for outflow of the cooling water, which are respectively provided at both ends thereof, and the flat plate cooling section comes into close contact with the coil.Type: GrantFiled: March 26, 2013Date of Patent: April 26, 2016Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Daisuke Shinohira, Doutaro Usui, Takashi Ikeda
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Patent number: 9325223Abstract: A linear motor cooling structure includes an inflow section for inflow of cooling water, an outflow section for outflow of the cooling water, and a flat plate cooling section which includes an inflow opening for inflow of the cooling water from the inflow section, an outflow opening for outflow of the cooling water to the outflow section, and a flow path which makes the cooling water which has flowed in from the inflow opening flow through an inside thereof and flow out from the outflow opening, wherein the inflow section, the flat plate cooling section, and the outflow section are connected, and the inflow section and the inflow opening communicate with each other and also the outflow opening and the outflow section communicate with each other.Type: GrantFiled: March 26, 2013Date of Patent: April 26, 2016Assignee: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Daisuke Shinohira, Doutaro Usui, Takashi Ikeda
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Publication number: 20160105087Abstract: A flat coil includes at least first and second coil layers having the shape of a ring and stacked, each of the first and second coil layers includes a pair of linear portions facing each other in a first direction and a pair of end portions facing each other in a second direction crossing the first direction, and the flat coil is bent on at least one of the end portions. The flat coil is an ?-winding coil and is bent toward the first coil layer from the second coil layer. A first end face of the first coil layer in the second direction and a second end face of the second coil layer in the second direction are positioned on the same plane at the end portion to be bent.Type: ApplicationFiled: December 17, 2015Publication date: April 14, 2016Inventors: Takashi Ikeda, Doutaro Usui, Kotaro Wada
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Publication number: 20150357896Abstract: A linear motor includes a mover movable in a first direction and a stator. A yoke includes a pair of back yokes provided opposite to each other so as to sandwich the mover in a second direction perpendicular to the first direction. A plurality of field magnets are provided on an inner lateral surface of each of the pair of back yokes in the first direction. A pair of auxiliary magnets are provided (i) on end lateral surfaces of the back yokes and (ii) in the vicinity of the field magnets at the extreme end provided in the back yoke. A magnetic member is provided to surround the pair of auxiliary magnets.Type: ApplicationFiled: August 20, 2015Publication date: December 10, 2015Inventors: Kotaro WADA, Doutaro USUI, Takashi IKEDA
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Publication number: 20130257182Abstract: A linear motor cooling structure includes an inflow section for inflow of cooling water, an outflow section for outflow of the cooling water, and a flat plate cooling section which includes an inflow opening for inflow of the cooling water from the inflow section, an outflow opening for outflow of the cooling water to the outflow section, and a flow path which makes the cooling water which has flowed in from the inflow opening flow through an inside thereof and flow out from the outflow opening, wherein the inflow section, the flat plate cooling section, and the outflow section are connected, and the inflow section and the inflow opening communicate with each other and also the outflow opening and the outflow section communicate with each other.Type: ApplicationFiled: March 26, 2013Publication date: October 3, 2013Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Daisuke SHINOHIRA, Doutaro USUI, Takashi IKEDA
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Publication number: 20130257181Abstract: A linear motor cooling structure for cooling a coil constituting a driving section of a linear motor includes a flat plate cooling section which forms a flow path for cooling water for cooling the coil in an inside between a plurality of flat plate members by overlapping the plurality of flat plate members, wherein the flat plate cooling section includes an inflow opening for inflow of the cooling water and an outflow opening for outflow of the cooling water, which are respectively provided at both ends thereof, and the flat plate cooling section comes into close contact with the coil.Type: ApplicationFiled: March 26, 2013Publication date: October 3, 2013Applicant: SUMITOMO HEAVY INDUSTRIES, LTD.Inventors: Daisuke SHINOHIRA, Doutaro USUI, Takashi IKEDA