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公开(公告)号:US11374474B2
公开(公告)日:2022-06-28
申请号:US17016376
申请日:2020-09-10
发明人: Kenji Katsuki , Takashi Fukumoto , Yasutaka Oba , Go Kato
摘要: A method of manufacturing a core product includes injecting molten resin into a resin injection portion provided in a core body so as to extend in a longitudinal direction of the core body, and forming a core product by welding the core body. A buffer region is set between the resin injection portion and a periphery of the core body in a lateral direction of the core body. The core product is formed by welding the core body so that a weld bead formed on the core body is prohibited from reaching the buffer region, and so that the weld bead is spaced apart from the resin injection portion in the lateral direction of the core body.
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公开(公告)号:US10686339B2
公开(公告)日:2020-06-16
申请号:US15640188
申请日:2017-06-30
发明人: Go Kato , Yasutaka Oba
摘要: A laminated core includes: a laminate in which 1st to Nth (N is a natural number of two or more) core members are laminated in this order; and a distinguishing mark formed with a marking that is placed on a peripheral surface of the laminate so as to be continuously positioned over all of the 1st to Nth core members.
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公开(公告)号:US11469653B2
公开(公告)日:2022-10-11
申请号:US17016374
申请日:2020-09-10
发明人: Kenji Katsuki , Takashi Fukumoto , Yasutaka Oba , Go Kato , Masashi Matsumoto
摘要: A method of manufacturing a rotating body includes disposing an end plate on an end surface of the core body in a height direction, and forming the rotating body by welding the end plate and the core body together. The rotating body is formed by welding the end plate and the core body together while a temperature of the core body and the end plate is within a predetermined operational a temperature range associated with rotation of the rotating body in a manufactured state of operation.
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