Patents by Inventor Yoshihaya Imamura
Yoshihaya Imamura 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: 11865610Abstract: A method for joining an aluminum material includes, in the following order, arranging a first wrought aluminum alloy material along a first jig in an internal space defined between the first jig and a second jig that is arranged to face the first jig and has a pouring port, pouring molten aluminum toward the first wrought aluminum alloy material through the pouring port under pressure to cause the molten aluminum to collide with a surface of the first wrought aluminum alloy material, thereby digging down the first wrought aluminum alloy material at a collision position between the molten aluminum and the first wrought aluminum alloy material, and flowing the molten aluminum together with a fraction of the first wrought aluminum alloy material removed by digging within the internal space along a surface of the first wrought aluminum alloy material around the collision position.Type: GrantFiled: June 12, 2020Date of Patent: January 9, 2024Assignee: Kobe Steel, Ltd.Inventors: Yoshihaya Imamura, Chieko Imai
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Patent number: 11774013Abstract: Formed in series along an axial-direction end portion of a large-diameter pipe member, in the following order from the pipe end, are: a large-diameter-pipe pipe-end expanding portion; a large-diameter-pipe reduced-diameter portion; a large-diameter-pipe bulging portion; and a tapered portion. Formed in series along an axial-direction end portion of a small-diameter-pipe member, in the following order from the pipe end, are: a small-diameter-pipe pipe-end expanding portion; a small-diameter-pipe enlarged-diameter portion; and a small-diameter-pipe bulging portion.Type: GrantFiled: July 5, 2018Date of Patent: October 3, 2023Assignees: Kobe Steel, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihaya Imamura, Chieko Imai
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Publication number: 20230266275Abstract: A testing method for a joined body, in which a second pipe member having an outer diameter smaller than that of a first pipe member having at least one through hole is inserted into the first pipe member and the second pipe member is expanded to form a joining portion, the testing method includes: applying an elastic wave vibration to the joined body of the first pipe member and the second pipe member, for plural visual field regions at different positions in a circumferential direction of the joined body, acquiring a vibration distribution of the second pipe member measured through the through hole and a vibration distribution of the first pipe member in a visual field region including the joining portion of the first pipe member and the second pipe member, which are measured optically and in a batch, and determining quality of joining in the entire joining portion based on the acquired vibration distributions.Type: ApplicationFiled: June 30, 2021Publication date: August 24, 2023Applicants: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.), SHIMADZU CORPORATIONInventors: Ryusuke HIOKI, Yoshihaya IMAMURA, Chieko IMAI, Takahide HATAHORI, Koki YOSHIDA
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Publication number: 20230032662Abstract: Provided are: a metal composite material in which a metal material and an aluminum casting are integrated with one another so as to exhibit high adhesion strength; and a method for producing the same. The metal composite material has a metal material and an aluminum casting which is layered on the metal material. Projecting alloy sections of the metal material which have a higher melting point than does the aluminum casting are formed on the surface of the metal material. The aluminum casting covers the surface of the metal material and is tightly adhered to the projecting alloy sections.Type: ApplicationFiled: December 18, 2020Publication date: February 2, 2023Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)Inventors: Yoshihaya IMAMURA, Chieko IMAI
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Patent number: 11532417Abstract: Provided are a coil unit for electromagnetic forming capable of stably processing a plurality of portions in the longitudinal direction of a tubular member while preventing the contact between the tubular member and a conductor or the contact between the conductors even when the tubular member is long, and a method for producing a formed article using the coil unit. The coil unit for electromagnetic forming includes: a shaft core member made of a resin; a conductor having a wound portion, which is wound around the shaft core member, and a pair of conductor extension portions; an insulating support; and a resin coating layer formed on the outer peripheral surface of the wound portion. In the insulating support, a conductor holding portion for holding the conductor extension portions apart from each other is formed along the longitudinal direction.Type: GrantFiled: July 12, 2018Date of Patent: December 20, 2022Assignee: Kobe Steel, Ltd.Inventors: Yoshihaya Imamura, Takayoshi Sugisaki, Chieko Imai
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Publication number: 20220355372Abstract: A method for joining an aluminum material includes, in the following order, arranging a first wrought aluminum alloy material along a first jig in an internal space defined between the first jig and a second jig that is arranged to face the first jig and has a pouring port, pouring molten aluminum toward the first wrought aluminum alloy material through the pouring port under pressure to cause the molten aluminum to collide with a surface of the first wrought aluminum alloy material, thereby digging down the first wrought aluminum alloy material at a collision position between the molten aluminum and the first wrought aluminum alloy material, and flowing the molten aluminum together with a fraction of the first wrought aluminum alloy material removed by digging within the internal space along a surface of the first wrought aluminum alloy material around the collision position.Type: ApplicationFiled: June 12, 2020Publication date: November 10, 2022Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Yoshihaya IMAMURA, Chieko IMAI, Toshiaki KITAZAWA, Hisaomi MASUZAWA
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Publication number: 20220229020Abstract: The method for examining a clinched portion of a tubular body includes the steps of: giving an elastic vibration to a clinched body 90 formed by clinching a tubular body 91 with a clinch-target member 92; and acquiring, for each of a plurality of view areas 95 which differ from each other in the position in the circumferential direction of the tubular body 91, a vibration distribution optically and simultaneously measured within the view area 95 including a clinched portion 93 of the tubular body 91 and the clinch-target member 92, to determine whether or not the state of clinching is satisfactory over the entire clinched portion 93.Type: ApplicationFiled: April 13, 2020Publication date: July 21, 2022Inventors: Takahide HATAHORI, Kenji TAKUBO, Koki YOSHIDA, Yoshihaya IMAMURA
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Patent number: 11311926Abstract: An electromagnetic forming method includes: a step of setting pipe periphery members at plural positions along an axial direction of a pipe material; a step of setting a coil unit on a side of one end, in the axial direction, of the pipe material, the coil unit including a conductor wound portion, conductor extension portions, and a resin-made conductor support portion; a step of setting a support member on a side of the other end, in the axial direction, of the pipe material; a coil unit holding step; a coil setting step; and a swaging step. The coil setting step and the swaging step are performed in this order at each of the plural positions of the pipe material while the coil unit is kept held by the support member.Type: GrantFiled: February 28, 2019Date of Patent: April 26, 2022Assignees: KOBE STEEL, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryusuke Hioki, Yoshihaya Imamura
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Patent number: 11123784Abstract: A coil unit is inserted into a tube member, an electromagnetic-forming coil part is arranged at a tube member forming position, a coil-side terminal is connected to a power-supply-side terminal of an end part of a high-voltage power supply cable, the electromagnetic-forming coil part is energized by a power supply part to electromagnetically form the tube member, the coil-side terminal and the power-supply-side terminal are separated, and the coil unit is removed from the tube member. Thus, the tube member can be separated from the high-voltage power supply cable during transport.Type: GrantFiled: July 12, 2018Date of Patent: September 21, 2021Assignees: KOBE STEEL, LTD., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihaya Imamura, Takayoshi Sugisaki, Chieko Imai
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Patent number: 11084084Abstract: An electromagnetic forming device for an aluminum tube member, the electromagnetic forming device including: a jig plate in which a support member that has a through hole has been fixed to a substrate; and a tube insertion mechanism that inserts a tube member into the through hole in the support member. The electromagnetic forming device also includes: a coil unit that has an electromagnetic-forming coil part; a coil movement mechanism that supports the coil unit; a current supply part that supplies current for electromagnetic forming to the electromagnetic-forming coil part; and a jig plate transport mechanism that transports the jig plate from a tube insertion stage ST1 to a tube expansion stage ST2.Type: GrantFiled: July 12, 2018Date of Patent: August 10, 2021Assignees: Kobe Steel, Ltd., TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Yoshihaya Imamura, Takayoshi Sugisaki, Chieko Imai
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Publication number: 20210170471Abstract: An electromagnetic forming method includes: a step of setting pipe periphery members at plural positions along an axial direction of a pipe material; a step of setting a coil unit on a side of one end, in the axial direction, of the pipe material, the coil unit including a conductor wound portion, conductor extension portions, and a resin-made conductor support portion; a step of setting a support member on a side of the other end, in the axial direction, of the pipe material; a coil unit holding step; a coil setting step; and a swaging step. The coil setting step and the swaging step are performed in this order at each of the plural positions of the pipe material while the coil unit is kept held by the support member.Type: ApplicationFiled: February 28, 2019Publication date: June 10, 2021Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.), TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Ryusuke HIOKI, Yoshihaya IMAMURA
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Publication number: 20210148492Abstract: Formed in series along an axial-direction end portion of a large-diameter pipe member, in the following order from the pipe end, are: a large-diameter-pipe pipe-end expanding portion; a large-diameter-pipe reduced-diameter portion; a large-diameter-pipe bulging portion; and a tapered portion. Formed in series along an axial-direction end portion of a small-diameter-pipe member, in the following order from the pipe end, are: a small-diameter-pipe pipe-end expanding portion; a small-diameter-pipe enlarged-diameter portion; and a small-diameter-pipe bulging portion.Type: ApplicationFiled: July 5, 2018Publication date: May 20, 2021Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Yoshihaya IMAMURA, Chieko IMAI
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Publication number: 20210090771Abstract: Provided are a coil unit for electromagnetic forming capable of stably processing a plurality of portions in the longitudinal direction of a tubular member while preventing the contact between the tubular member and a conductor or the contact between the conductors even when the tubular member is long, and a method for producing a formed article using the coil unit. The coil unit for electromagnetic forming includes: a shaft core member made of a resin; a conductor having a wound portion, which is wound around the shaft core member, and a pair of conductor extension portions; an insulating support; and a resin coating layer formed on the outer peripheral surface of the wound portion. In the insulating support, a conductor holding portion for holding the conductor extension portions apart from each other is formed along the longitudinal direction.Type: ApplicationFiled: July 12, 2018Publication date: March 25, 2021Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe SteelInventors: Yoshihaya IMAMURA, Takayoshi SUGISAKI, Chieko IMAI
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Publication number: 20210039189Abstract: A resistance-spot-welded aluminum joint having a type of a nugget that can reduce variations in cross tension strength. The resistance-spot-welded aluminum joint is obtained by layering a plurality of aluminum members and welding the aluminum members together by resistance spot welding. In a cross section of an interface between the aluminum members, a weld nugget formed as a result of the resistance spot welding has a plurality of blowholes aggregated in a central area of the weld nugget within the interface. In a cross section taken in a layered direction of the aluminum members extending through the center of the weld nugget, a blowhole with a maximum size of the plurality of blowholes is formed at a position where the blowhole extends through a center line of the weld nugget extending in the layered direction.Type: ApplicationFiled: August 7, 2020Publication date: February 11, 2021Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Takashi GOTO, Yoshihaya IMAMURA
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Publication number: 20200222965Abstract: A coil unit is inserted into a tube member, an electromagnetic-forming coil part is arranged at a tube member forming position, a coil-side terminal is connected to a power-supply-side terminal of an end part of a high-voltage power supply cable, the electromagnetic-forming coil part is energized by a power supply part to electromagnetically form the tube member, the coil-side terminal and the power-supply-side terminal are separated, and the coil unit is removed from the tube member. Thus, the tube member can be separated from the high-voltage power supply cable during transport.Type: ApplicationFiled: July 12, 2018Publication date: July 16, 2020Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Yoshihaya IMAMURA, Takayoshi SUGISAKI, Chieko IMAI
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Publication number: 20200139420Abstract: An electromagnetic forming device for an aluminum tube member, the electromagnetic forming device including: a jig plate in which a support member that has a through hole has been fixed to a substrate; and a tube insertion mechanism that inserts a tube member into the through hole in the support member. The electromagnetic forming device also includes: a coil unit that has an electromagnetic-forming coil part; a coil movement mechanism that supports the coil unit; a current supply part that supplies current for electromagnetic forming to the electromagnetic-forming coil part; and a jig plate transport mechanism that transports the jig plate from a tube insertion stage ST1 to a tube expansion stage ST2.Type: ApplicationFiled: July 12, 2018Publication date: May 7, 2020Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe-Steel, Ltd.)Inventors: Yoshihaya IMAMURA, Takayoshi SUGISAKI, Chieko IMAI
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Patent number: 10583629Abstract: A joining structure includes a first member, a second member of a material different from that of the first member, and a separation mechanism provided between the first member and the second member and that separates the first member and the second member from each other, wherein a resin is filled into the space between the edge of at least one member among the first member and the second member, and the other member.Type: GrantFiled: January 14, 2016Date of Patent: March 10, 2020Assignee: Kobe Steel, Ltd.Inventors: Yoshihaya Imamura, Chieko Imai
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Patent number: 10556285Abstract: A metal joined body in which a joint is formed from a first metal member and a second metal member. Brazed joint portions provided intermittently with a brazing material and solder joints filling the spaces between the brazed joint portions with a solder having a fusion point lower than the brazing material, are formed at a seam of the joint. The resulting metal joint has excellent sealing properties and little thermal strain.Type: GrantFiled: October 26, 2015Date of Patent: February 11, 2020Assignee: Kobe Steel, Ltd.Inventors: Tsuyoshi Matsumoto, Yoshihaya Imamura
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Publication number: 20190077466Abstract: The aluminum structure member according to the present invention is provided with an aluminum wrought material comprising aluminum or aluminum alloy, and an aluminum alloy casting joined in a state in which the aluminum wrought material is inserted therein. The aluminum wrought material has a joining part in which a portion protrudes to the outside from the aluminum alloy casting.Type: ApplicationFiled: October 14, 2016Publication date: March 14, 2019Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Yoshihaya IMAMURA, Chieko IMAI
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Publication number: 20190048910Abstract: An outer panel of a different-material panel structure has a hem part in which a peripheral edge part of an inner panel is held via a resin layer on a folded part formed in the peripheral edge part. A rivet has a shaft part passing through the outer panel, and a rivet shaft recess is formed in the tip of the shaft part. An inner protrusion is provided in the inner panel, and the inner protrusion is disposed in the rivet shaft recess. A fused nugget is formed in the location where the rivet shaft recess and the tip of the inner protrusion come into contact, and a first heat-insulating part including at least the resin layer is formed in the gap formed with the resin layer in between the inner protrusion and the outer panel.Type: ApplicationFiled: February 14, 2017Publication date: February 14, 2019Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Tetsu IWASE, Yoshihaya IMAMURA