Patents by Inventor Sataro Yamaguchi
Sataro Yamaguchi 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: 20230041751Abstract: When bending a superconducting cable of a stack conductor structure in which a plurality of layers of tape wires are stacked, a twisting process is performed for the superconducting cable immediately before a bending portion of the superconducting cable.Type: ApplicationFiled: October 6, 2022Publication date: February 9, 2023Applicant: CHUBU UNIVERSITY EDUCATIONAL FOUNDATIONInventors: Sataro YAMAGUCHI, Masae KANDA, Takayuki KOJIMA
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Patent number: 11482353Abstract: When bending a superconducting cable of a stack conductor structure in which a plurality of layers of tape wires are stacked, a twisting process is performed for the superconducting cable immediately before a bending portion of the superconducting cable.Type: GrantFiled: March 6, 2019Date of Patent: October 25, 2022Assignee: CHUBU UNIVERSITY EDUCATIONAL FOUNDATIONInventors: Sataro Yamaguchi, Masae Kanda, Takayuki Kojima
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Patent number: 11387018Abstract: When temperature raising is performed, temperature of a superconducting cable is uniformly raised over an entirety of the superconducting cable. The superconducting cable assumes a linear shape when cooled, and deforms into a helical shape when temperature raising is performed. In a former having a twisted wire structure, twisting directions of an outermost layer and a layer next to the outer most layer are set to be the same, enabling stabilization of the helical deformation of the superconducting cable including the former when the temperature raising is performed.Type: GrantFiled: May 26, 2017Date of Patent: July 12, 2022Assignee: CHUBU UNIVERSITY EDUCATIONAL FOUNDATIONInventor: Sataro Yamaguchi
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Publication number: 20210005355Abstract: When bending a superconducting cable of a stack conductor structure in which a plurality of layers of tape wires are stacked, a twisting process is performed for the superconducting cable immediately before a bending portion of the superconducting cable.Type: ApplicationFiled: March 6, 2019Publication date: January 7, 2021Applicant: CHUBU UNIVERSITY EDUCATIONAL FOUNDATIONInventors: Sataro YAMAGUCHI, Masae KANDA, Takayuki KOJIMA
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Publication number: 20190221335Abstract: When temperature raising is performed, temperature of a superconducting cable is uniformly raised over an entirety of the superconducting cable. The superconducting cable assumes a linear shape when cooled, and deforms into a helical shape when temperature raising is performed. In a former having a twisted wire structure, twisting directions of an outermost layer and a layer next to the outer most layer are set to be the same, enabling stabilization of the helical deformation of the superconducting cable including the former when the temperature raising is performed.Type: ApplicationFiled: May 26, 2017Publication date: July 18, 2019Applicant: CHUBU UNIVERSITY EDUCATIONAL FOUNDATIONInventor: Sataro YAMAGUCHI
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Patent number: 9767941Abstract: A superconducting power transmission system that comprises an inner pipe housing a superconducting cable therein, a radiation covering at least a part of the inner pipe from outside; and an outer pipe housing the inner pipe and the radiation shield therein. A vacuum is created in a space from an inside of the outer pipe to an outside of the inner pipe with the radiation shield therebetween. The system further comprises at least one radiation shield pipe, housed in the outer pipe and thermally coupled with the radiation shield, a liquefied natural gas (LNG) as a second cryogen for the radiation shield being made to flow through the radiation shield pipe.Type: GrantFiled: July 1, 2014Date of Patent: September 19, 2017Assignees: CHUBU UNIVERSITY EDUCATIONAL FOUNDATION, JGC CORPORATIONInventors: Sataro Yamaguchi, Hirofumi Watanabe
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Publication number: 20160372239Abstract: A superconducting power transmission system that comprises an inner pipe housing a superconducting cable therein, a radiation covering at least a part of the inner pipe from outside; and an outer pipe housing the inner pipe and the radiation shield therein. A vacuum is created in a space from an inside of the outer pipe to an outside of the inner pipe with the radiation shield therebetween. The system further comprises at least one radiation shield pipe, housed in the outer pipe and thermally coupled with the radiation shield, a liquefied natural gas (LNG) as a second cryogen for the radiation shield being made to flow through the radiation shield pipe.Type: ApplicationFiled: July 1, 2014Publication date: December 22, 2016Applicants: CHUBU UNIVERSITY EDUCATION FOUNDATION, JGC CORPORATIONInventors: Sataro YAMAGUCHI, Hirofumi WATANABE
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Publication number: 20160265839Abstract: In a thermally insulated double pipe, a structure is provided in which an inner pipe may be prevented from being appreciably offset relative to an outer pipe due to thermal contraction. The structure includes an inner pipe 101, within which a superconducting cable is mounted, an outer pipe 103 within which the inner pipe is housed, with the inner and outer pipes constituting a thermally insulated double pipe, and an inner pipe support member 104 supporting the inner pipe. The inner pipe support member 104 is secured to the inner and outer pipes.Type: ApplicationFiled: March 14, 2016Publication date: September 15, 2016Applicant: CHUBU UNIVERSITY EDUCATIONAL FOUNDATIONInventors: Sataro YAMAGUCHI, Hirofumi Watanabe
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Patent number: 9318242Abstract: In a thermally insulated double pipe, a structure is provided in which an inner pipe may be prevented from being appreciably offset relative to an outer pipe due to thermal contraction. The structure includes an inner pipe 101, within which a superconducting cable is mounted, an outer pipe 103 within which the inner pipe is housed, with the inner and outer pipes constituting a thermally insulated double pipe, and an inner pipe support member 104 supporting the inner pipe. The inner pipe support member 104 is secured to the inner and outer pipes.Type: GrantFiled: September 5, 2011Date of Patent: April 19, 2016Assignee: CHUBU UNIVERSITY EDUCATIONAL FOUNDATIONInventors: Sataro Yamaguchi, Hirofumi Watanabe
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Publication number: 20130263606Abstract: A current lead apparatus includes a pipe surrounding a current lead connected between a low temperature side terminal and an ambient side terminal. The refrigerant gas discharged at the ambient temperature side is circulated via a plurality of stages of freezers to a low temperature side of the pipe.Type: ApplicationFiled: October 14, 2011Publication date: October 10, 2013Applicant: CHUBU UNIVERSITY EDUCATIONAL FOUNDATIONInventor: Sataro Yamaguchi
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Publication number: 20130240236Abstract: In a thermally insulated double pipe, a structure is provided in which an inner pipe may be prevented from being appreciably offset relative to an outer pipe due to thermal contraction. The structure includes an inner pipe 101, within which a superconducting cable is mounted, an outer pipe 103 within which the inner pipe is housed, with the inner and outer pipes constituting a thermally insulated double pipe, and an inner pipe support member 104 supporting the inner pipe. The inner pipe support member 104 is secured to the inner and outer pipes.Type: ApplicationFiled: September 5, 2011Publication date: September 19, 2013Applicant: CHUBU UNIVERSITY EDUCATIONAL FOUNDATIONInventors: Sataro Yamaguchi, Hirofumi Watanabe
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Patent number: 8244323Abstract: A method of manufacturing a superconducting tape wire, wherein a reduction in critical current in the superconducting tape wire and the effective AC loss are suppressed. To manufacture the superconducting tape wire, the filaments filled with superconducting material powder and having a flat elliptic or rectangular cross section are disposed in a pipe having a shape whose sides in a pressing direction have a smaller length than adjacent sides, and then the pipe is compressed in the short-side direction to form the pipe in a tape shape.Type: GrantFiled: May 27, 2009Date of Patent: August 14, 2012Assignee: Chubu University Educational FoundationInventor: Sataro Yamaguchi
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Publication number: 20110136674Abstract: A method of manufacturing a superconducting tape wire, wherein a reduction in critical current in the superconducting tape wire and the effective AC loss are suppressed. To manufacture the superconducting tape wire, the filaments filled with superconducting material powder and having a flat elliptic or rectangular cross section are disposed in a pipe having a shape whose sides in a pressing direction have a smaller length than adjacent sides, and then the pipe is compressed in the short-side direction to form the pipe in a tape shape.Type: ApplicationFiled: May 27, 2009Publication date: June 9, 2011Applicant: CHUBU UNIVERSITY EDUCATIONAL FOUNDATIONInventor: Sataro Yamaguchi
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Patent number: 7692338Abstract: A power transmission cable with easy laying, reduced heat invasion and enhanced efficiency. The cable comprises an inner pipe 105 encasing a refrigerant passage 101, a superconducting member 102 and an electrically insulating portion 103; an outer pipe 106; a vacuum adiabatic insulating section 104 between the inner and outer pipes; an inner pipe support ring disposed between the inner and outer pipes so that it is slidable along the outer side of the inner pipe; an outer pipe support ring fixed to the inner side of the outer pipe; and a support member which is disposed between the inner and outer pipe support rings.Type: GrantFiled: July 19, 2005Date of Patent: April 6, 2010Assignee: Kabushiki Kaisha Y.Y.L.Inventor: Sataro Yamaguchi
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Publication number: 20090201617Abstract: Disclosed is a current-limiting circuit breaker including first and second mechanical switches connected in series with each other, a first diode, and a first snubber circuit, each connected in parallel across both ends of the first mechanical switch, and a second diode, and a second snubber circuit, each connected in parallel across both ends of the second mechanical switch.Type: ApplicationFiled: August 6, 2008Publication date: August 13, 2009Applicant: KABUSHIKI KAISHA Y.Y.L.Inventor: Sataro YAMAGUCHI
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Patent number: 7498698Abstract: A superconducting cable having improved transmission efficiency facilitates the laying operation and reduces heat intrusion. The superconducting cable comprises a first pipe 105 within which are accommodated a refrigerant passage section 101, a superconducting member 102 and an electrical insulating section 103, and a second pipe 106 arranged on the outer side of the first pipe. A vacuum heat insulating section 104 is provided between the first and second pipes. The second pipe is formed of a ferromagnetic material.Type: GrantFiled: July 11, 2005Date of Patent: March 3, 2009Assignee: Kabushiki Kaisha Y.Y.L.Inventor: Sataro Yamaguchi
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Publication number: 20080212625Abstract: Disclosed is a semiconductor apparatus comprising an N-type material which cools a silicon semiconductor using the current flowing through the silicon semiconductor.Type: ApplicationFiled: January 14, 2008Publication date: September 4, 2008Applicant: Kabusiki Kaisha Y.Y.L.Inventors: Sataro YAMAGUCHI, Yoichi Okamoto
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Publication number: 20080173877Abstract: Disclosed is a semiconductor apparatus having a channel region of a substrate irradiated with light via a transparent gate electrode and a transparent gate insulating film to decrease channel resistance.Type: ApplicationFiled: January 8, 2008Publication date: July 24, 2008Applicant: KABUSHIKI KAISHA Y.Y.L.Inventor: Sataro YAMAGUCHI
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Patent number: 7351282Abstract: Cutting method of ingot into wafers along cleavage plane. Onto surface of single crystal ingot 10 is implanted ion beam 23 to generate lattice defects in a direction defined by the crystal axes that corresponds to the cleavage plane. Cleavage is generated by applying a shock by a knife edge to the position of the lattice having a cutting face as a cleavage plane. Production time of waters is reduced with a more numbers of sliced wafers from one ingot.Type: GrantFiled: May 7, 2003Date of Patent: April 1, 2008Assignee: Kabushiki Kaisha Y.Y.L.Inventor: Sataro Yamaguchi
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Publication number: 20070084623Abstract: A power transmission cable with easy laying, reduced heat invasion and enhanced efficiency. The cable comprises an inner pipe 105 encasing a refrigerant passage 101, a superconducting member 102 and an electrically insulating portion 103; an outer pipe 106; a vacuum adiabatic insulating section 104 between the inner and outer pipes; an inner pipe support ring disposed between the inner and outer pipes so that it is slidable along the outer side of the inner pipe; an outer pipe support ring fixed to the inner side of the outer pipe; and a support member which is disposed between the inner and outer pipe support rings.Type: ApplicationFiled: July 19, 2005Publication date: April 19, 2007Inventor: Sataro Yamaguchi