Patents by Inventor Masayoshi Goto
Masayoshi Goto 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: 11949304Abstract: A rotary electric machine includes a stator. The stator has a coil end provided by a plurality of joint portions. The coil end has a leader wire connected to a power terminal. The stator has a coil end provided by a plurality of turn portions. The coil end has a circumferential pair whose top portions are offset in a circumferential direction. The circumferential pair has a height HG21. The coil end has an axial pair whose top portions are offset in an axial direction. The axial pair has a height HG22. The housing has a facing surface facing the coil end. The coil end provides a height distribution which adapts an unevenness of the opposing surface.Type: GrantFiled: August 2, 2021Date of Patent: April 2, 2024Assignee: DENSO CORPORATIONInventors: Masayoshi Yamamoto, Mai Goto, Shigenori Yoneda
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Publication number: 20240088343Abstract: An electrode manufacturing method includes a first step of applying an electrode liquid composition in a desired shape at a desired position on a substrate, the electrode liquid composition containing an electrode mixture material; a second step of acquiring positional information as to where the electrode liquid composition is applied; and a third step of cutting only the substrate at a desired position in a region other than an electrode mixture material region where the electrode liquid composition is applied to obtain an electrode cut out in a desired shape.Type: ApplicationFiled: February 28, 2022Publication date: March 14, 2024Inventors: Hiromichi KURIYAMA, Satoshi NAKAJIMA, Shun GOTO, Tomomasa KAJITA, Masayoshi NOMURA, Keigo TAKAUJI, Miku OHKIMOTO
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Patent number: 9357702Abstract: An engine-powered work tool includes: a shaft extending in a first direction; an engine at a rear end portion of the shaft; a fuel tank disposed below the engine in a second direction perpendicular to the first direction; and a stand fixed to the engine. The stand includes a fastening portion fixed to a front end portion of the engine, and a curved portion extending from the fastening portion and curving toward a rear end portion of the engine. The curved portion provides a lower end portion positioned downstream of a bottom end portion of the fuel tank in the second direction. The lower end portion has a distal end positioned upstream of the rear end portion of the fuel tank in the first direction, the distal end and the bottom end of the fuel tank defining a gap therebetween in the second direction.Type: GrantFiled: August 13, 2014Date of Patent: June 7, 2016Assignee: Hitachi Koki Co., Ltd.Inventors: Hideki Watanabe, Naoki Tsuruoka, Masayoshi Goto, Takeshi Matsuoka, Hiroyuki Hasegawa, Norihide Tao
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Patent number: 9330817Abstract: An enameled flat wire includes a flat wire and an enamel coating. The difference in thickness of the enamel coating on flat surfaces between a maximum thickness and a minimum thickness is equal to or less than 25% of the predetermined thickness. The enamel coating prior to baking includes a maximum surface curvature on each of the rounded corners of the wire, and a depression on at least one of the flat surfaces of the wire, the depression has a maximum surface curvature. The maximum surface curvature of the depression is larger than the maximum surface curvature of the enamel coating prior to baking on at least one of the rounded corners thereof.Type: GrantFiled: March 24, 2014Date of Patent: May 3, 2016Assignee: Hitachi Metals, Ltd.Inventor: Masayoshi Goto
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Patent number: 9293231Abstract: An audio/video cable includes an insulated layer including a copper conductor for transmitting audio/video signals and an insulation layer formed on a periphery thereof. The copper conductor includes a soft dilute copper alloy material containing pure copper, Ti as an additive element and an inevitable impurity as a balance. The soft dilute copper alloy material includes a recrystallized structure having a grain size distribution such that crystal grains in a surface layer are smaller than internal crystal grains. The soft dilute copper alloy material includes not less than 2 and not more than 12 mass ppm of sulfur, more than 2 mass ppm but not more than 30 mass ppm of oxygen, and not less than 4 and not more than 55 mass ppm of Ti.Type: GrantFiled: July 11, 2014Date of Patent: March 22, 2016Assignee: HITACHI METALS, LTD.Inventors: Seigi Aoyama, Toru Sumi, Masayoshi Goto
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Patent number: 9234263Abstract: A weldment includes metal materials that are welded to each other. At least one of the metal materials includes pure copper including an inevitable impurity, more than 2 mass ppm of oxygen, and an additive element selected from the group consisting of Mg, Zr, Nb, Fe, Si, Al, Ca, V, Ni, Mn, Ti and Cr. A method of manufacturing a weldment includes melting a dilute copper alloy material by SCR continuous casting and rolling at a molten copper temperature of not less than 1100° C. and not more than 1320° C. to make a molten metal, forming a cast bar from the molten metal, forming a dilute copper alloy member by hot-rolling the cast bar, and welding the dilute copper alloy member to a metal material.Type: GrantFiled: October 19, 2011Date of Patent: January 12, 2016Assignee: HITACHI METALS, LTD.Inventors: Hiromitsu Kuroda, Toru Sumi, Hideyuki Sagawa, Seigi Aoyama, Masayoshi Goto, Takahiko Hanada, Takahiro Sato, Hidenori Abe
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Patent number: 9111664Abstract: A manufacturing method uses a solid coating die for applying an insulation varnish around a flat wire conductor. The die includes a die body and a die hole formed through the die body, into which the conductor is inserted. The die hole includes an entry portion having a cross section monotonically decreasing along a conductor insertion direction, and a coating portion including at least a sub-portion having a constant cross section. The cross section of the coating portion is a rectangle having four straight sides and four rounded corners. Each inner surface of each straight side has an inwardly projecting protrusion, a top contour of each protrusion being a circular arc, an elongated circular arc, an elliptical arc or a combination of these arcs, the maximum curvature of the top contour of each protrusion being larger than the maximum curvature of inner surface of the rounded corners.Type: GrantFiled: July 11, 2013Date of Patent: August 18, 2015Assignee: Hitachi Metals, Ltd.Inventor: Masayoshi Goto
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Publication number: 20150047210Abstract: An engine-powered work tool includes: a shaft extending in a first direction; an engine at a rear end portion of the shaft; a fuel tank disposed below the engine in a second direction perpendicular to the first direction; and a stand fixed to the engine. The stand includes a fastening portion fixed to a front end portion of the engine, and a curved portion extending from the fastening portion and curving toward a rear end portion of the engine. The curved portion provides a lower end portion positioned downstream of a bottom end portion of the fuel tank in the second direction. The lower end portion has a distal end positioned upstream of the rear end portion of the fuel tank in the first direction, the distal end and the bottom end of the fuel tank defining a gap therebetween in the second direction.Type: ApplicationFiled: August 13, 2014Publication date: February 19, 2015Inventors: Hideki Watanabe, Naoki Tsuruoka, Masayoshi Goto, Takeshi Matsuoka, Hiroyuki Hasegawa, Norihide Tao
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Publication number: 20140318827Abstract: An audio/video cable includes an insulated layer including a copper conductor for transmitting audio/video signals and an insulation layer formed on a periphery thereof. The copper conductor includes a soft dilute copper alloy material containing pure copper, Ti as an additive element and an inevitable impurity as a balance. The soft dilute copper alloy material includes a recrystallized structure having a grain size distribution such that crystal grains in a surface layer are smaller than internal crystal grains. The soft dilute copper alloy material includes not less than 2 and not more than 12 mass ppm of sulfur, more than 2 mass ppm but not more than 30 mass ppm of oxygen, and not less than 4 and not more than 55 mass ppm of Ti.Type: ApplicationFiled: July 11, 2014Publication date: October 30, 2014Inventors: Seigi Aoyama, Toru Sumi, Masayoshi Goto
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Publication number: 20140302342Abstract: A copper wire includes a copper wire rod including 5 to 55 mass ppm of Ti, 3 to 12 mass ppm of sulfur, and 2 to 30 mass ppm of oxygen with the balance copper and inevitable impurities, a first crystal including a [111] crystal orientation and at least one twin crystal therein, and a second crystal that includes one or more crystals adjacent to the first crystal, a [111] crystal orientation with a different rotation angle on an atomic plane from the first crystal, and at least one twin crystal therein.Type: ApplicationFiled: March 20, 2014Publication date: October 9, 2014Applicant: Hitachi Metals, Ltd.Inventors: Seigi AOYAMA, Toru Sumi, Hideyuki Sagawa, Keisuke Fujito, Masayoshi Goto, Hiroyoshi Hiruta
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Patent number: 8835766Abstract: An audio/video cable includes a plurality of parallel arranged insulated wires or twisted pair insulated wires each including a copper conductor and an insulation layer formed on a periphery thereof. The copper conductor includes a soft dilute copper alloy material containing pure copper, an additive element and an inevitable impurity as a balance. The soft dilute copper alloy material includes a recrystallized structure having a grain size distribution such that crystal grains in a surface layer are smaller than internal crystal grains. The surface layer includes a crystal structure such that an average crystal grain size from a surface of the surface layer up to a depth of 50 ?m toward inside of the soft dilute copper alloy material is not more than 20 ?m.Type: GrantFiled: October 19, 2011Date of Patent: September 16, 2014Assignee: Hitachi Metals, Ltd.Inventors: Seigi Aoyama, Toru Sumi, Masayoshi Goto
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Publication number: 20140202731Abstract: There is provided an enameled flat wire, in which a flat wire conductor having a rectangular cross section composed of four flat surfaces and four rounded corners has an enamel coating with a predetermined thickness for electrical insulation. In the enameled flat wire, a difference in a thickness of the enamel coating on the flat surfaces between a maximum thickness and a minimum thickness is equal to or less than 25% of the predetermined thickness.Type: ApplicationFiled: March 24, 2014Publication date: July 24, 2014Applicant: Hitachi Metals, Ltd.Inventor: Masayoshi GOTO
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Patent number: 8746165Abstract: There is provided a coating die for applying an insulation varnish around a wire conductor, comprising: a die body; and a die hole formed through the die body, the die hole including: an entry portion having an opening size monotonically decreasing along a conductor insertion direction; and a coating portion comprising a sub-portion having a constant opening size, in which: on an inner surface of the coating portion are provided at least four protrusions equally spaced in a circumferential direction of the inner surface, the protrusions projecting toward a center axis of the die hole; and each of the protrusions includes a portion with a height gradually increasing along the conductor insertion direction from a boundary between the entry portion and the coating portion. There can be formed an enameled wire having a thin and uniform insulation coating by using the invented coating die.Type: GrantFiled: December 23, 2011Date of Patent: June 10, 2014Assignee: Hitachi Metals, Ltd.Inventor: Masayoshi Goto
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Patent number: 8677926Abstract: A solid coating die for applying an insulation varnish around a flat wire conductor includes a die body and a die hole formed through the die body, the conductor to be inserted into the die hole. The die hole includes: an entry portion having a cross section monotonically decreasing along a conductor insertion direction; and a coating portion including at least a sub-portion having a constant cross section. The cross section of the coating portion is a rectangle having four straight sides and four rounded corners. Each inner surface of the straight side of the coating portion has an inwardly projecting protrusion, a top contour of each protrusion being a circular arc, an elongated circular arc, an elliptical arc or a combination of these arcs, the maximum curvature of the top contour of each protrusion being larger than the maximum curvature of inner surface of the rounded corners.Type: GrantFiled: December 23, 2010Date of Patent: March 25, 2014Assignee: Hitachi Magnet Wire Corp.Inventor: Masayoshi Goto
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Publication number: 20130300022Abstract: A manufacturing method uses a solid coating die for applying an insulation varnish around a flat wire conductor. The die includes a die body and a die hole formed through the die body, into which the conductor is inserted. The die hole includes an entry portion having a cross section monotonically decreasing along a conductor insertion direction, and a coating portion including at least a sub-portion having a constant cross section. The cross section of the coating portion is a rectangle having four straight sides and four rounded corners. Each inner surface of each straight side has an inwardly projecting protrusion, a top contour of each protrusion being a circular arc, an elongated circular arc, an elliptical arc or a combination of these arcs, the maximum curvature of the top contour of each protrusion being larger than the maximum curvature of inner surface of the rounded corners.Type: ApplicationFiled: July 11, 2013Publication date: November 14, 2013Inventor: Masayoshi Goto
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Patent number: 8308115Abstract: There is provided an in-vehicle holder support device to which an in-vehicle holder unit can be easily attached, with an improved rigidity thereof in an attached condition. In the in-vehicle holder support device, there is provided, in a base portion 12, a sloping surface 12c which slopes toward a side of a right seat frame cover 4 that is an object for attachment. An attaching portion 6 is allowed to slide via the sloping surface 12c and is guided to a gap G to be fitted thereinto. Besides, own weight of a pocket 2 can be certainly received by an opposed surface 14b that is formed flat in a holding portion 14. Thus, the pocket 2 can be easily attached to the in-vehicle holder support device and further rigidity of the in-vehicle holder support device 3 can be improved with the pocket 2 attached thereto.Type: GrantFiled: August 11, 2008Date of Patent: November 13, 2012Assignee: Honda Access Corp.Inventor: Masayoshi Goto
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Patent number: 8220409Abstract: A first varnish 11 supplied from a first varnish tank 12 and a second varnish 13 supplied from a second varnish tank 14 are mixed by a mixer 15 to provide a varnish 2, and supplied to a varnish bath 18. Coating dies 19A-19F are connected to the varnish bath 18 via tubes 20A-20F. A wire 3 is installed into the coating dies 19A-19F through a hole 20a provided in each of the tubes 20A-20F. The varnish 2 supplied to the varnish bath 19 is dropped by its self weight through the tubes 20A-20F, and continuously supplied to the coating dies 19A-19F. The varnish 2 is applied to a surface of the wire 3 by the coating dies 19A-19F.Type: GrantFiled: December 6, 2007Date of Patent: July 17, 2012Assignee: Hitachi Magnet Wire Corp.Inventor: Masayoshi Goto
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Publication number: 20120164315Abstract: There is provided a coating die for applying an insulation varnish around a wire conductor, comprising: a die body; and a die hole formed through the die body, the die hole including: an entry portion having an opening size monotonically decreasing along a conductor insertion direction; and a coating portion comprising a sub-portion having a constant opening size, in which: on an inner surface of the coating portion are provided at least four protrusions equally spaced in a circumferential direction of the inner surface, the protrusions projecting toward a center axis of the die hole; and each of the protrusions includes a portion with a height gradually increasing along the conductor insertion direction from a boundary between the entry portion and the coating portion. There can be formed an enameled wire having a thin and uniform insulation coating by using the invented coating die.Type: ApplicationFiled: December 23, 2011Publication date: June 28, 2012Inventor: Masayoshi GOTO
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Publication number: 20120097420Abstract: An audio/video cable includes a plurality of parallel arranged insulated wires or twisted pair insulated wires each including a copper conductor and an insulation layer formed on a periphery thereof. The copper conductor includes a soft dilute copper alloy material containing pure copper, an additive element and an inevitable impurity as a balance. The soft dilute copper alloy material includes a recrystallized structure having a grain size distribution such that crystal grains in a surface layer are smaller than internal crystal grains. The surface layer includes a crystal structure such that an average crystal grain size from a surface of the surface layer up to a depth of 50 ?m toward inside of the soft dilute copper alloy material is not more than 20 ?m.Type: ApplicationFiled: October 19, 2011Publication date: April 26, 2012Applicant: HITACHI CABLE, LTD.Inventors: Seigi Aoyama, Toru Sumi, Masayoshi Goto
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Patent number: D1009078Type: GrantFiled: September 7, 2021Date of Patent: December 26, 2023Assignee: MARUYAMA MFG. CO., INC.Inventors: Nozomu Sasaki, Kazuyuki Kawana, Masayoshi Goto