Patents by Inventor Tsuneo Aoi
Tsuneo Aoi 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: 10756587Abstract: Object: To provide a polyphase AC electric motor whereby partial discharge can be suppressed. Resolution Means: The winding of each phase includes a first partial conductor that is an input side partial conductor; an nth partial conductor connected to a neutral point; and second to n-1th partial conductors.Type: GrantFiled: September 15, 2017Date of Patent: August 25, 2020Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Eigo Tachikawa, Tsuneo Aoi
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Patent number: 10601277Abstract: An insulated wire in which at least one layer of an insulating material is coated around a conductor, wherein the insulated wire has a part in which relative permittivity is different in a length direction or a circumferential direction in an identical coating layer and a method of producing the same, and a rotating electrical machine and a method of producing the same.Type: GrantFiled: July 21, 2016Date of Patent: March 24, 2020Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Yohei Ishii, Tsuneo Aoi
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Patent number: 10566109Abstract: An insulated wire, containing: a conductor having a rectangular cross-section; and an insulating coated film having at least two insulating layers laminated together on the conductor, wherein the laminated insulating coated film is composed of: an enamel insulating layer formed from a thermosetting resin on the outer periphery of the conductor, and an extruded insulating layer formed from a thermoplastic resin on the outer side of the enamel insulating layer, wherein the thickness of the enamel insulating layer is 50 ?m or more, and wherein the total thickness (T) and the relative permittivity (?) at 100° C. of the laminated insulating coated film; and the maximum thickness (Tmax), and the maximum value (?max) and the minimum value (?min) of the relative permittivity at 100° C. of one layer among the laminated insulating layers; satisfy all of the following relations: T?100 ?m??(1.1) Tmax?100 ?m??(1.2) 1.5???3.5??(2.1) 1.0??max/?min?1.2??(2.2) a coil; and an electrical or electronic equipment.Type: GrantFiled: September 17, 2018Date of Patent: February 18, 2020Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Daisuke Muto, Makoto Oya, Keiichi Tomizawa, Hideo Fukuda, Tsuneo Aoi
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Patent number: 10483013Abstract: An insulated wire having an insulating coat layer on the conductor outer peripheral surface having a rectangular cross-sectional shape and also having a long side, a short side, and a corner portion with a curvature radius Rc, wherein a thickness t1 of the insulating coat layer covered on the surface, and which layer includes a long side, a thickness t2 of the insulating coat layer covered on the surface, and which layer includes a short side, and a corner portion thickness t3 of the insulating coat layer satisfy formula (1): t3/{(t1+t2)/2}?1.2??Formula (1) wherein the t1 and t2 are each independently from 20 ?m to 50 ?m, and wherein a ratio of the conductor cross-sectional area Sc to the insulated wire cross-sectional area Sw satisfies formula (2) 1.0>Sc/Sw?0.8;??Formula (2) as well as a coil and an electric or electronic equipment using the same.Type: GrantFiled: June 23, 2017Date of Patent: November 19, 2019Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Makoto Oya, Tsuneo Aoi
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Patent number: 10325695Abstract: A rectangular wire having: a multilayer conductor member constructed by stacking, in a thickness direction, a rectangular metallic conductor that has a layer of a first thermoplastic resin formed on the outer periphery thereof, the first thermoplastic resin being a non-crystalline resin having no melting point or a crystalline resin having an amide bond; and a layer of a second thermoplastic resin having a melting point of 300° C. or more on the outer periphery of the multilayer conductor member.Type: GrantFiled: March 4, 2016Date of Patent: June 18, 2019Assignees: Furukawa Electric Co., Ltd., Furukawa Magnet Wire Co., Ltd.Inventors: Hideo Fukuda, Dai Fujiwara, Tsuneo Aoi, Hiroshi Kaneiwa, Takefumi Kaji
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Patent number: 10319491Abstract: A rectangular wire having: a multilayer conductor member constructed by stacking, in a thickness direction, a rectangular metallic conductor that has a layer of a thermosetting resin formed on the outer periphery thereof, the thermosetting resin having a glass transition temperature of 100° C. or more and 200° C. or less and having a urethane bond; and a layer of a thermoplastic resin having a melting point of 300° C. or more on the outer periphery of the multilayer conductor member.Type: GrantFiled: March 4, 2016Date of Patent: June 11, 2019Assignees: Furukawa Electric Co., Ltd., Furukawa Magnet Wire Co., Ltd.Inventors: Hideo Fukuda, Dai Fujiwara, Tsuneo Aoi, Hiroshi Kaneiwa, Yuki Amano
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Patent number: 10199139Abstract: An insulated wire containing: at least one thermosetting resin layer; and at least one thermoplastic resin layer, provided in this order on a conductor having a rectangular cross-section, a curvature radius r of corner portions at both edges of at least one short side of the conductor being 0.6 mm or less, in which thickness t1 of the corner portion of the thermosetting resin layer and thickness t2 of the corner portion of the thermoplastic resin layer satisfy a relation expressed by the following Formula 1: t2/t1<1;??Formula 1: and a method of producing thereof, a motor coil, and an electric/electronic equipment.Type: GrantFiled: June 24, 2016Date of Patent: February 5, 2019Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Makoto Oya, Tsuneo Aoi
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Publication number: 20190027271Abstract: An insulated wire, containing: a conductor having a rectangular cross-section; and an insulating coated film having at least two insulating layers laminated together on the conductor, wherein the laminated insulating coated film is composed of: an enamel insulating layer formed from a thermosetting resin on the outer periphery of the conductor, and an extruded insulating layer formed from a thermoplastic resin on the outer side of the enamel insulating layer, wherein the thickness of the enamel insulating layer is 50 ?m or more, and wherein the total thickness (T) and the relative permittivity (?) at 100° C. of the laminated insulating coated film; and the maximum thickness (Tmax), and the maximum value (?max) and the minimum value (?min) of the relative permittivity at 100° C. of one layer among the laminated insulating layers; satisfy all of the following relations: T?100 ?m ??(1.1) Tmax?100 ?m ??(1.2) 1.5???3.5 ??(2.1) 1.0??max/?min?1.2 ??(2.Type: ApplicationFiled: September 17, 2018Publication date: January 24, 2019Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Daisuke MUTO, Makoto OYA, Keiichi TOMIZAWA, Hideo FUKUDA, Tsuneo AOI
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Patent number: 10109389Abstract: A rectangular insulated wire includes a rectangular conductor having a generally rectangular cross section and a plurality of baked-coating resin layers disposed to cover the rectangular conductor. Each of the plurality of baked-coating resin layers is formed of at least one resin selected from a group comprising a polyester-based resin including a trihydric or tetrahydric alcohol constituent, a polyester imide resin, a polyamide-imide resin and a polyimide resin. An adhesion strength between the plurality of baked-coating resin layers is greater than or equal to 5 g/mm and less than or equal to 10 g/mm.Type: GrantFiled: August 25, 2016Date of Patent: October 23, 2018Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Hideo Fukuda, Tsuneo Aoi, Dai Fujiwara
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Patent number: 10032540Abstract: A multilayer insulated wire having a polyester-based resin layer formed of a polyester-based resin containing at least a trihydric or higher hydric alcohol constituent on a conductor, and a PEEK resin layer formed of polyether ether ketone or modified polyether ether ketone, directly or by interposing an intermediate layer, on the polyester-based resin layer; a coil formed by winding processing the insulated wire, and electronic/electrical equipment having the coil.Type: GrantFiled: June 24, 2016Date of Patent: July 24, 2018Assignees: Furukawa Electric Co., Ltd., Furukawa Magnet Wire Co., Ltd.Inventors: Ryosuke Obika, Tsuneo Aoi
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Publication number: 20180006516Abstract: Object: To provide a polyphase AC electric motor whereby partial discharge can be suppressed. Resolution Means: The winding of each phase includes a first partial conductor that is an input side partial conductor; an nth partial conductor connected to a neutral point; and second to n-1th partial conductors.Type: ApplicationFiled: September 15, 2017Publication date: January 4, 2018Inventors: Eigo TACHIKAWA, Tsuneo AOI
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Publication number: 20170294249Abstract: An insulated wire having an insulating coat layer on the conductor outer peripheral surface having a rectangular cross-sectional shape and also having a long side, a short side, and a corner portion with a curvature radius Rc, wherein a thickness t1 of the insulating coat layer covered on the surface, and which layer includes a long side, a thickness t2 of the insulating coat layer covered on the surface, and which layer includes a short side, and a corner portion thickness t3 of the insulating coat layer satisfy formula (1): t3/{(t1+t2)/2}?1.2 ??Formula (1) wherein the t1 and t2 are each independently from 20 ?m to 50 ?m, and wherein a ratio of the conductor cross-sectional area Sc to the insulated wire cross-sectional area Sw satisfies formula (2) 1.0>Sc/Sw?0.8; ??Formula (2) as well as a coil and an electric or electronic equipment using the same.Type: ApplicationFiled: June 23, 2017Publication date: October 12, 2017Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Makoto OYA, Tsuneo AOI
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Patent number: 9755325Abstract: A conductor wire crimping portion (7) has depressions (13a, 13b, 13c) that are disposed at prescribed intervals in the axial direction and that are linear locking portions. The depressions (13a, 13b, 13c) are continuously depressed grooves on the inner surface of a crimping portion (5). On an upper die (30a), at a portion corresponding to the conductor wire crimping portion (7), a straight portion is formed, and in the front-back direction thereof, tapered portions are formed. More specifically, the upper die (30a) is formed to have an inverted trapezoid shape, a middle portion of which protrudes in the crimping direction. Consequently, at each boundary between the straight portion and the tapered portion, a die angled portion (32) is formed. At an area corresponding to the straight portion of the upper die (30a), the depression (13a) is provided, and at an area corresponding to the die angled section (32), the depression (13b) is provided.Type: GrantFiled: April 1, 2016Date of Patent: September 5, 2017Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA AUTOMOTIVE SYSTEMS INC.Inventors: Takashi Tonoike, Yukihiro Kawamura, Yasushi Kihara, Hiroshi Orito, Kyutaro Abe, Tsuneo Aoi, Koji Yamanaka, Tomoki Kawamura
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Patent number: 9691521Abstract: A rectangular insulated wire includes a rectangular conductor having a generally rectangular cross section, a thermosetting resin layer provided to cover the rectangular conductor, and a plurality of thermoplastic resin layers provided on the thermosetting resin layer. An adhesion strength between the thermosetting resin layer and the thermoplastic resin layer is 50 gf/mm to 100 gf/mm.Type: GrantFiled: June 14, 2016Date of Patent: June 27, 2017Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Hideo Fukuda, Makoto Oya, Keisuke Ikeda, Satoko Yamoto, Tsuneo Aoi
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Publication number: 20170004900Abstract: An insulated wire having a conductor coated with at least one layer of an insulating material, and having at least one layer of a bubble layer in a thickness direction in a coating layer, wherein the insulated wire has a part in which a thickness is small in a length direction or a circumferential direction in an identical coating layer; a method of producing the same; a method of producing a stator for a rotating electrical machine; and the rotating electrical machine.Type: ApplicationFiled: September 14, 2016Publication date: January 5, 2017Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Yohei ISHII, Tsuneo AOI
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Publication number: 20160365164Abstract: A rectangular insulated wire includes a rectangular conductor having a generally rectangular cross section and a plurality of baked-coating resin layers disposed to cover the rectangular conductor. Each of the plurality of baked-coating resin layers is formed of at least one resin selected from a group comprising a polyester-based resin including a trihydric or tetrahydric alcohol constituent, a polyester imide resin, a polyamide-imide resin and a polyimide resin. An adhesion strength between the plurality of baked-coating resin layers is greater than or equal to 5 g/mm and less than or equal to 10 g/mm.Type: ApplicationFiled: August 25, 2016Publication date: December 15, 2016Inventors: Hideo Fukuda, Tsuneo Aoi, Dai Fujiwara
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Patent number: 9514863Abstract: An inverter surge-resistant insulated wire has a baked enamel layer(s) around the outer periphery of a conductor having a rectangular cross-section, an extrusion-coated resin layer(s) around the outer side thereof, and an adhesive layer having a thickness of 2-20 ?m between the baked enamel layer and the extrusion-coated resin layer. A cross-sectional shape of the baked enamel layer and the extrusion-coated resin layer in the cross-section of the wire is rectangular. In the cross-sectional shape formed by the baked enamel layer and the extrusion-coated resin layer surrounding the conductor in a cross-sectional view, at least a pair of two sides of two pairs of two sides opposing at the upper side and the downside or at the right side and the left side with respect to the conductor meet the conditions that a total thickness of the baked enamel layer and the extrusion-coated resin layer is 80 ?m or more.Type: GrantFiled: October 6, 2014Date of Patent: December 6, 2016Assignees: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Hideo Fukuda, Daisuke Muto, Dai Fujiwara, Keiichi Tomizawa, Tsuneo Aoi
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Publication number: 20160329770Abstract: An insulated wire in which at least one layer of an insulating material is coated around a conductor, wherein the insulated wire has a part in which relative permittivity is different in a length direction or a circumferential direction in an identical coating layer and a method of producing the same, and a rotating electrical machine and a method of producing the same.Type: ApplicationFiled: July 21, 2016Publication date: November 10, 2016Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Yohei ISHII, Tsuneo AOI
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Publication number: 20160307667Abstract: A rectangular insulated wire includes a rectangular conductor having a generally rectangular cross section, a thermosetting resin layer provided to cover the rectangular conductor, and a plurality of thermoplastic resin layers provided on the thermosetting resin layer. An adhesion strength between the thermosetting resin layer and the thermoplastic resin layer is 50 gf/mm to 100 gf/mm.Type: ApplicationFiled: June 14, 2016Publication date: October 20, 2016Inventors: Hiedeo Fukuda, Makoto Oya, Keisuke Ikeda, Satoko Yamoto, Tsuneo Aoi
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Publication number: 20160307664Abstract: A multilayer insulated wire having a polyester-based resin layer formed of a polyester-based resin containing at least a trihydric or higher hydric alcohol constituent on a conductor, and a PEEK resin layer formed of polyether ether ketone or modified polyether ether ketone, directly or by interposing an intermediate layer, on the polyester-based resin layer; a coil formed by winding processing the insulated wire, and electronic/electrical equipment having the coil.Type: ApplicationFiled: June 24, 2016Publication date: October 20, 2016Applicants: FURUKAWA ELECTRIC CO., LTD., FURUKAWA MAGNET WIRE CO., LTD.Inventors: Ryosuke OBIKA, Tsuneo AOI