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公开(公告)号：US12098039B2
公开(公告)日：2024-09-24
申请号：US17768745
申请日：2020-08-19
Applicant: Hitachi High-Tech Corporation
Inventor： Ryosuke Hoshi , Yasuaki Aoyama , Satoru Kaneko , Hiroyuki Kobayashi , Takeshi Tamakoshi , Hiroshi Watanabe , Katsuhiro Kambara , Kuniaki Onizawa
CPC classification number: B65G54/02 , G01N35/04 , G01N2035/0477
Abstract: The weight of a body-to-be-conveyed constituting a conveying device is reduced, and the friction force between the sliding surface of the body-to-be-conveyed and the conveyance path is reduced. A body-to-be-conveyed that is a component of a conveying device that uses electromagnetic force as thrust and can move in a horizontal direction includes a mover in which a bottom surface is arranged so that a predetermined gap is formed in a vertical direction with respect to the sliding surface thereof, in which the mover includes a permanent magnet and a cover, a gap facing surface of the permanent magnet facing the gap includes one magnetic pole, the cover is installed on a side of the permanent magnet opposite from the gap facing surface in the vertical direction, the horizontal outermost diameter of the cover is larger than the horizontal outermost diameter of the permanent magnet, and the cover is formed of a flat plate.
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Patent Agency Ranking
2.发明授权公开(公告)号：US11887780B2
公开(公告)日：2024-01-30
申请号：US17287899
申请日：2019-11-07
Applicant: Hitachi High-Tech Corporation
Inventor： Yasuaki Aoyama , Hiroyuki Kobayashi , Satoru Kaneko , Takeshi Tamakoshi , Ryosuke Hoshi , Katsuhiro Kambara , Hiroshi Watanabe , Kuniaki Onizawa
CPC classification number: H01F7/064 , B65G54/02 , G01N35/028 , H01F7/02 , G01N2035/0477
Abstract: The present invention comprises: an object to be conveyed that has at least one permanent magnet 10; a magnetic pole 25 that has a core 22 comprising a second magnetic body and a winding 21 wound around the outer periphery of the core 22; a drive circuit 50 for supplying a current to the winding 21 of the magnetic pole 25; a current detection unit 30 for detecting the value of the current flowing through the winding 21; and a computation unit 40 for estimating the position of the permanent magnet 10 on the basis of the current value detected by the current detection unit 30 and controlling the value of the current supplied from the drive circuit 50 to the winding 21 on the basis of information about the estimated position of the permanent magnet 10.
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公开(公告)号：US11772911B2
公开(公告)日：2023-10-03
申请号：US17596305
申请日：2020-04-07
Applicant: Hitachi High-Tech Corporation
Inventor： Yasuaki Aoyama , Ryosuke Hoshi , Satoru Kaneko , Hiroyuki Kobayashi , Takeshi Tamakoshi , Katsuhiro Kambara , Hiroshi Watanabe , Kuniaki Onizawa
CPC classification number: B65G54/02 , H02K41/02 , H02K41/031 , B65G2201/0235
Abstract: Provided is a transport device in which reliability is increased by suppressing deterioration of the transport surface and transport efficiency is increased by suppressing electrical current loss. A transport device 1 comprising a transported body having either a permanent magnet 10 or a magnetic body, and an electromagnet unit in which coils 21 are wound around teeth 25 comprising magnetic bodies, and having recesses on surfaces of the teeth 25 facing the transported body. Specifically, the surfaces of the teeth 25 facing the transported body have at least two surfaces (first facing surface 22, second facing surface 23, etc.) which have different distances to the transported body.
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公开(公告)号：US12230441B2
公开(公告)日：2025-02-18
申请号：US17614577
申请日：2020-04-07
Applicant: HITACHI HIGH-TECH CORPORATION
Inventor： Ryosuke Hoshi , Yasuaki Aoyama , Satoru Kaneko , Hiroyuki Kobayashi , Takeshi Tamakoshi , Katsuhiro Kambara , Hiroshi Watanabe , Kuniaki Onizawa
Abstract: A transport device and a transport method efficiently increase a thrust to suppress power consumption. The transport device has a first magnetic body on a side of a to-be-transported object, a magnetic circuit with a core consisting of a second magnetic body, and a winding wound around an outside of the core, and a drive circuit supplying a current to the winding of the magnetic circuit. The magnetic circuit has first and second magnetic circuits, and in a case where the first magnetic body is located on a side of the second magnetic circuit relative to a first predetermined position between the first magnetic circuit and the second magnetic circuit, the drive circuit supplies a current to a winding of the first magnetic circuit in such a manner to cause an electromagnetic repulsive force to be generated between the first magnetic body and the first magnetic circuit.
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公开(公告)号：US11933801B2
公开(公告)日：2024-03-19
申请号：US17798682
申请日：2020-11-10
Applicant: Hitachi High-Tech Corporation
Inventor： Yasuaki Aoyama , Ryosuke Hoshi , Satoru Kaneko , Hiroyuki Kobayashi , Takeshi Tamakoshi , Hiroshi Watanabe , Katsuhiro Kambara , Kuniaki Onizawa
CPC classification number: G01N35/04 , B65G54/02 , G01N2035/0477
Abstract: The present invention provides a transport device and a specimen analysis system including the transport device that reduce the pulsation of thrust for moving an object to be transported, reduce vibration of the object to be transported during transport, and realize stable transport. The transport device of the present invention includes a first electromagnet unit including a first tooth made of a magnetic body, a first core connected to the first tooth and made of a magnetic body, and a first winding formed around the first core; a second electromagnet unit including a second tooth installed adjacent to the first electromagnet unit and made of a magnetic body, a second core connected to the second tooth and made of a magnetic body, a second winding formed around the second core; and a magnetic coupling unit made of a magnetic body between the first tooth of the first electromagnet unit and the second tooth of the second electromagnet unit.
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公开(公告)号：US11851282B2
公开(公告)日：2023-12-26
申请号：US17434945
申请日：2020-01-14
Applicant: Hitachi High-Tech Corporation
Inventor： Yasuaki Aoyama , Ryosuke Hoshi , Hiroyuki Kobayashi , Satoru Kaneko , Takeshi Tamakoshi , Hiroshi Watanabe , Katsuhiro Kambara , Kuniaki Onizawa
CPC classification number: B65G43/00 , B65G23/00 , B65G54/02 , H02P29/00 , B65G2203/0258 , G01N35/026
Abstract: The invention provides a conveying device having a conveying performance higher than that of the related art, a sample analysis system and sample pretreatment device with the conveying device and a method for conveying a conveyance object. A conveying device 1 includes a permanent magnet 10 which is provided on a sample rack 111 side, magnetic poles 25 each of which includes a core 22 made of a second magnetic body and a winding 21 wound around an outer periphery of the core 22, drive circuits 50 each of which supplies a current to the winding 21 of the magnetic pole 25, and current command calculation units 55 each of which controls a value of the current to be supplied to the winding 21 from the drive circuit 50. The current command calculation unit 55 makes the currents to be supplied to the windings 21 vary.
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