Patents by Inventor Naotoshi FURUKAWA
Naotoshi FURUKAWA 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: 20240153697Abstract: A reactor structure includes: a reactor that has a coil and a core; and a bus bar that electrically connects the coil and an external device. The reactor includes a pin that positions the busbar relative to the reactor, the busbar includes: a first piece that is overlaid onto and connected to a winding wire end portion of the core; a second piece that is connected to the external device; and a body piece that joins the first piece and the second piece to each other. The body piece includes an elongated slide hole that extends in an X direction, the X direction is a direction in which the winding wire end portion and the first piece are arranged side-by-side, and the pin is passed through the slide hole to restrict movement of the busbar in a direction that intersects the X direction and a protruding direction of the pin.Type: ApplicationFiled: March 11, 2022Publication date: May 9, 2024Inventors: Naotoshi FURUKAWA, Kohei YOSHIKAWA
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Patent number: 11972889Abstract: A reactor is provided with a coil including a pair of winding portions arranged in parallel, a magnetic core to be arranged inside and outside the winding portions, a case for accommodating an assembly including the coil and the magnetic core, a leaf spring fitting for pressing the assembly toward an inner bottom surface of the case, and a sealing resin portion to be filled into the case. Each of the winding portions is so arranged that an arrangement direction of the winding portions is along a depth direction of the case. The case includes an opening having a rectangular planar shape. The leaf spring fitting is arranged in a state curved toward the inner bottom surface by having both end parts of the leaf spring fitting directly pressed against parts of inner wall surfaces of the case facing each other in a long side direction.Type: GrantFiled: November 8, 2019Date of Patent: April 30, 2024Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Takehito Kobayashi, Kohei Yoshikawa, Seiji Shitama, Kazuhiro Inaba, Naotoshi Furukawa
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Publication number: 20240133325Abstract: An engine device includes an exhaust gas purification device above a cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward form the flat portion and are fixed to the cylinder head. The flat portion and the leg portion are formed integrally. Portions between the legs are each formed in an arch-shape.Type: ApplicationFiled: January 2, 2024Publication date: April 25, 2024Applicant: Yanmar Power Technology Co., Ltd.Inventors: Yu Matsui, Naotoshi Furukawa
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Patent number: 11898479Abstract: An engine device includes an exhaust gas purification device above a cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward form the flat portion and are fixed to the cylinder head. The flat portion and the leg portion are formed integrally. Portions between the legs are each formed in an arch-shape.Type: GrantFiled: November 26, 2022Date of Patent: February 13, 2024Assignee: Yanmar Power Technology Co., Ltd.Inventors: Yu Matsui, Naotoshi Furukawa
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Publication number: 20230307169Abstract: A reactor is provided with a coil and a magnetic core. The magnetic core has a first surface made of a material mainly containing a magnetic material, and a second surface facing the first surface. The first surface has a first region with a surface property following that of the second surface.Type: ApplicationFiled: July 28, 2021Publication date: September 28, 2023Inventors: Kohei YOSHIKAWA, Naotoshi FURUKAWA, Seiji SHITAMA
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Patent number: 11615907Abstract: A reactor includes an assembly, stored in a case, including a coil and a magnetic core; an insertion member, having a type A durometer hardness of 50 or higher, that is stored side-by-side with the assembly; and a sealing resin portion that fills the case. The case includes a bottom portion and a side wall portion. The insertion member includes a leading end portion separated from the bottom portion via a gap. A space formed between the assembly and the case and between the insertion member and the case includes a first region provided between the bottom portion and the leading end portion and a second region that is a region other than the first region. The sealing resin portion includes a first resin portion that fills the first region and a second resin portion that fills at least a portion of the second region.Type: GrantFiled: September 29, 2020Date of Patent: March 28, 2023Assignees: AutoNetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.Inventors: Takehito Kobayashi, Kohei Yoshikawa, Naotoshi Furukawa, Masaya Murashita
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Publication number: 20230090880Abstract: An engine device includes an exhaust gas purification device above a cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward form the flat portion and are fixed to the cylinder head. The flat portion and the leg portion are formed integrally. Portions between the legs are each formed in an arch-shape.Type: ApplicationFiled: November 26, 2022Publication date: March 23, 2023Applicant: Yanmar Power Technology Co., Ltd.Inventors: Yu Matsui, Naotoshi Furukawa
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Patent number: 11536175Abstract: An engine device including an exhaust gas purification device above cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward from the flat portion and are fixed to the cylinder head. The flat portion and the leg portions are formed integrally. Portions between the legs are each formed in an arch-shape.Type: GrantFiled: October 15, 2020Date of Patent: December 27, 2022Assignee: Yanmar Power Technology Co., Ltd.Inventors: Yu Matsui, Naotoshi Furukawa
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Patent number: 11521779Abstract: A reactor including: an assembly that includes a coil and a magnetic core; a case in which the assembly is accommodated; a sealing resin with which the case is filled; and a pushing plate accommodated in the case, wherein the case includes a bottom, a side wall, and at least one groove that is open in an inner surface of the side wall, and the groove of the case includes an opening end provided in an end surface of the side wall of the case that is located opposite to the bottom of the case, and a closed end provided on the bottom of the case with respect to the opening end.Type: GrantFiled: September 10, 2020Date of Patent: December 6, 2022Assignees: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Naotoshi Furukawa
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Publication number: 20220223329Abstract: A reactor is provided with a coil including a pair of winding portions arranged in parallel, a magnetic core to be arranged inside and outside the winding portions, a holding member for specifying mutual positions of the coil and the magnetic core, a case for accommodating an assembly including the coil, the magnetic core and the holding member, and a sealing resin portion to be filled into the case. The case includes a bottom plate portion, the assembly being placed on the bottom plate portion, a side wall portion for surrounding the assembly, and an opening facing the bottom plate portion. The assembly is so accommodated into the case that an axial direction of each winding portion is along a depth direction of the case. The magnetic core includes an outer core portion to be arranged outside the winding portions and on the opening side.Type: ApplicationFiled: May 15, 2020Publication date: July 14, 2022Inventors: Naotoshi FURUKAWA, Kohei YOSHIKAWA, Seiji SHITAMA, Takehito KOBAYASHI
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Publication number: 20220005642Abstract: A reactor is provided with a coil including a pair of winding portions arranged in parallel, a magnetic core to be arranged inside and outside the winding portions, a case for accommodating an assembly including the coil and the magnetic core, a leaf spring fitting for pressing the assembly toward an inner bottom surface of the case, and a sealing resin portion to be filled into the case. Each of the winding portions is so arranged that an arrangement direction of the winding portions is along a depth direction of the case. The case includes an opening having a rectangular planar shape. The leaf spring fitting is arranged in a state curved toward the inner bottom surface by having both end parts of the leaf spring fitting directly pressed against parts of inner wall surfaces of the case facing each other in a long side direction.Type: ApplicationFiled: November 8, 2019Publication date: January 6, 2022Inventors: Takehito KOBAYASHI, Kohei YOSHIKAWA, Seiji SHITAMA, Kazuhiro INABA, Naotoshi FURUKAWA
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Publication number: 20220005641Abstract: A reactor includes: a coil including a pair of winding portions arranged in parallel via a coupling portion; a magnetic core including inner core portions arranged inside the winding portions and a pair of outer core portions arranged outside the winding portions; a pair of holding members arranged so as to face end faces of the winding portions; and a molded resin portion covering at least a portion of outer peripheral surfaces of the outer core portions and fills spaces between inner peripheral surfaces of the winding portions and the inner core portions. The coil is a single continuous winding wire, the coupling portion is formed by bending back a portion of the winding wire, and one of the holding members on a side on which the coupling portion is arranged includes a recessed portion housing the coupling portion and an inward projection is arranged inside the coupling portion.Type: ApplicationFiled: November 27, 2019Publication date: January 6, 2022Inventors: Seiji Shitama, Akinori Ooishi, Kohei Yoshikawa, Naotoshi Furukawa, Kazuhiro Inaba
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Publication number: 20210407723Abstract: A reactor includes an assembly formed by assembling a coil and a magnetic core, a case for accommodating the assembly inside, a grip member for sandwiching the assembly from the bottom plate portion side and the opening side inside the case, and a screw member for fixing the grip member to the bottom plate portion by penetrating into the case from outside of the bottom plate portion. The grip member includes a first piece to be held in contact with a surface of the assembly on the opening side, a second piece to be held in contact with a surface of the assembly on the bottom plate portion side, and a third piece connecting the first piece and the second piece in a depth direction of the case.Type: ApplicationFiled: November 8, 2019Publication date: December 30, 2021Inventors: Takehito KOBAYASHI, Kohei YOSHIKAWA, Takashi MISAKI, Seiji SHITAMA, Kazuhiro INABA, Naotoshi FURUKAWA
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Publication number: 20210398729Abstract: A reactor is provided with a coil including a pair of winding portions arranged in parallel, a magnetic core to be arranged inside and outside the winding portions, a case for accommodating an assembly including the coil and the magnetic core, and a sealing resin portion to be filled into the case. The case includes a bottom plate portion on which the assembly is placed, a side wall portion for surrounding the assembly, and an opening facing the bottom plate portion and having a rectangular planar shape. The pair of winding portions are so arranged that a parallel direction is orthogonal to the bottom plate portion. The reactor includes a supporting member to be arranged along a short side direction of the opening. The supporting member includes end portions to be stopped in contact with facing inner surfaces of the side wall portion.Type: ApplicationFiled: November 5, 2019Publication date: December 23, 2021Inventors: Takehito KOBAYASHI, Kohei YOSHIKAWA, Seiji SHITAMA, Naotoshi FURUKAWA
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Publication number: 20210398728Abstract: A reactor includes an assembly of a coil and a magnetic core, a case for accommodating the assembly inside, a sealing resin portion for at least partially sealing the assembly by being filled into the case, and a supporting portion to be fixed to the case in a cantilever manner. The case includes a bottom plate portion, and a side wall portion. The side wall portion includes a pair of short side portions and a pair of long side portions having different lengths along a circumferential direction of the case. The supporting portion includes a fixed end to be fixed to an end surface of the short side portion of the side wall portion, an overlapping region configured to overlap the outer core portion from above, and a free end not to be fixed to the case.Type: ApplicationFiled: November 5, 2019Publication date: December 23, 2021Inventors: Takehito KOBAYASHI, Kohei YOSHIKAWA, Seiji SHITAMA, Naotoshi FURUKAWA
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Publication number: 20210164373Abstract: An engine device including an exhaust gas purification device above cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward from the flat portion and are fixed to the cylinder head. The flat portion and the leg portions are formed integrally. Portions between the legs are each formed in an arch-shape.Type: ApplicationFiled: October 15, 2020Publication date: June 3, 2021Applicant: Yanmar Power Technology Co., Ltd.Inventors: Yu Matsui, Naotoshi Furukawa
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Publication number: 20210098171Abstract: A reactor includes an assembly, stored in a case, including a coil and a magnetic core; an insertion member, having a type A durometer hardness of 50 or higher, that is stored side-by-side with the assembly; and a sealing resin portion that fills the case. The case includes a bottom portion and a side wall portion. The insertion member includes a leading end portion separated from the bottom portion via a gap. A space formed between the assembly and the case and between the insertion member and the case includes a first region provided between the bottom portion and the leading end portion and a second region that is a region other than the first region. The sealing resin portion includes a first resin portion that fills the first region and a second resin portion that fills at least a portion of the second region.Type: ApplicationFiled: September 29, 2020Publication date: April 1, 2021Inventors: Takehito Kobayashi, Kohei Yoshikawa, Naotoshi Furukawa, Masaya Murashita
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Publication number: 20210082612Abstract: A reactor including: an assembly that includes a coil and a magnetic core; a case in which the assembly is accommodated; a sealing resin with which the case is filled; and a pushing plate accommodated in the case, wherein the case includes a bottom, a side wall, and at least one groove that is open in an inner surface of the side wall, and the groove of the case includes an opening end provided in an end surface of the side wall of the case that is located opposite to the bottom of the case, and a closed end provided on the bottom of the case with respect to the opening end.Type: ApplicationFiled: September 10, 2020Publication date: March 18, 2021Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventor: Naotoshi FURUKAWA
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Patent number: 10837334Abstract: An engine device including an exhaust gas purification device above a cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward from the flat portion and are fixed to the cylinder head. The flat portion and the leg portions are formed integrally. Portions between the legs are each formed in an arch-shape.Type: GrantFiled: December 19, 2017Date of Patent: November 17, 2020Assignee: YANMAR POWER TECHNOLOGY CO., LTD.Inventors: Yu Matsui, Naotoshi Furukawa
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Publication number: 20200080452Abstract: An engine device including an exhaust gas purification device above a cylinder head through a support pedestal. The support pedestal has a flat portion on which the exhaust gas purification device is mounted, and a plurality of legs which protrude downward from the flat portion and are fixed to the cylinder head. The flat portion and the leg portions are formed integrally. Portions between the legs are each formed in an arch-shape.Type: ApplicationFiled: December 19, 2017Publication date: March 12, 2020Applicant: Yanmar Co., Ltd.Inventors: Yu MATSUI, Naotoshi FURUKAWA