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公开(公告)号：US20240067467A1
公开(公告)日：2024-02-29
申请号：US18272323
申请日：2021-10-13
Applicant: Hitachi High-Tech Corporation
Inventor： Takeshi TAMAKOSHI , Shigeru YANO , Shinji AZUMA , Yuichiro SHIGA , Daigo SHISHIDO
CPC classification number: B65G54/02 , G01N35/04 , G01N2035/0477
Abstract: There are provided a sample conveyance system and a sample conveyance method capable of conveying a sample in a more stable manner than in the related art corresponding to a conveyance method using an electromagnetic actuator. A driving unit 208 applies a first voltage to a first coil 207a located on a front side in a traveling direction of a holder 202, which is selected to attract or repel the holder 202, to excite the first coil 207a and applies a second voltage having a polarity opposite to a polarity of the first voltage to at least one or more of second coils 207b among coils 207 adjacent to the first coil 207a except for the coils 207 in the front side in the traveling direction to excite the second coil 207b, and a control unit 210A estimates a position of the holder 202 based on a value of a current flowing through a winding 206 of the first coil 207a.
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公开(公告)号：US20230184799A1
公开(公告)日：2023-06-15
申请号：US17924488
申请日：2021-02-15
Applicant: Hitachi High-Tech Corporation
Inventor： Takeshi TAMAKOSHI , Satoru KANEKO , Hiroyuki KOBAYASHI , Yasuaki AOYAMA , Ryosuke HOSHI
IPC: G01N35/04
CPC classification number: G01N35/04 , G01N2035/0477 , G01N2035/0491
Abstract: A transport device includes: a calculation unit 40 configured to estimate a position of a transport container 20 based on a current value detected by a current detection unit 30; and a storage unit 45 configured to store a current change amount for each of a plurality of magnetic poles 25 when a pulse voltage of a fixed value is applied to respective coils 21 of the plurality of magnetic poles 25 in a state where a permanent magnetic 10 is not on a transport surface. The calculation unit 40 estimates the position of the transport container 20 based on a deviation between a current change amount of a coil 21 acquired at a time of detecting the position of the transport container 20 and the current change amount of the corresponding coil 21 in the state where the permanent magnetic 10 is not present, which is stored in the storage unit 45. This configuration provides a transport device capable of detecting a position of a sample transport carrier with high sensitivity without using a container carrier detection device, and an analysis system including the transport device.
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公开(公告)号：US20240140735A1
公开(公告)日：2024-05-02
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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4.发明申请公开(公告)号：US20220252627A1
公开(公告)日：2022-08-11
申请号：US17434966
申请日：2020-01-14
Applicant: Hitachi High-Tech Corporation
Inventor： Yasuaki AOYAMA , Ryosuke HOSHI , Hiroyuki KOBAYASHI , Takeshi TAMAKOSHI , Satoru KANEKO , Hiroshi WATANABE , Katsuhiro KAMBARA , Kuniaki ONIZAWA
Abstract: The invention provides a conveyance device having a smaller loss of a winding than that of a related art while increasing thrust for conveying a body to be conveyed, and a specimen analysis system and a specimen pretreatment device including the same. A conveyance device 1 includes: a permanent magnet 10 provided on the side of a specimen rack 111; teeth 22 formed of a second magnetic body; and a winding 21 wound around the side of an outer periphery of the teeth 22, wherein a cross-sectional area of a cross section of a part of the teeth facing the permanent magnet 10 is larger than that of other parts thereof. Alternatively, the conveyance device 1 includes: the permanent magnet 10 provided on the side of the specimen rack 111; the teeth 22 formed of the second magnetic body; and the winding 21 wound around the side of the outer periphery of the teeth 22, wherein a gap Lc between the permanent magnet 10 and the winding 21 and a gap Lt between permanent magnet 10 and the teeth 22 satisfy a relationship of Lc>Lt.
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公开(公告)号：US20220238267A1
公开(公告)日：2022-07-28
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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Patent Agency Ranking
公开(公告)号：US20240103029A1
公开(公告)日：2024-03-28
申请号：US18266929
申请日：2021-11-10
Applicant: HITACHI HIGH-TECH CORPORATION
Inventor： Saori CHIDA , Shigeru YANO , Takeshi TAMAKOSHI
IPC: G01N35/04
CPC classification number: G01N35/04 , G01N2035/00891 , G01N2035/0477 , G01N2035/0491
Abstract: There are provided a sample conveying device and a sample conveyance method capable of determining a cause of an abnormality in a conveyance speed more quickly than in the related art. In a conveying device 501, a general conveyance speed of a conveying container 102 is obtained from a position of the conveying container 102 detected by a position detection unit 110 to determine whether the general conveyance speed is abnormal, and when it is determined that the general conveyance speed is abnormal, an inspection conveying container 105 is conveyed, and the cause of the abnormality in the general conveyance speed is determined based on the conveyance speed of the inspection conveying container 105.
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公开(公告)号：US20230333131A1
公开(公告)日：2023-10-19
申请号：US18028773
申请日：2021-08-27
Applicant: Hitachi High-Tech Corporation
Inventor： Ryosuke HOSHI , Yasuaki AOYAMA , Akeshi TAKAHASHI , Satoru KANEKO , Takeshi TAMAKOSHI , Hiroyuki KOBAYASHI , Hiroshi WATANABE , Kuniaki ONIZAWA
CPC classification number: G01N35/04 , B65G54/02 , G01N2035/0475 , G01N2035/0477
Abstract: Provided is a conveyance device capable of reducing the weight of a conveyance device while preventing magnetic saturation. A conveyance device according to the present invention is characterized by comprising a conveyance path (65) in which a conveyed object is moved, an electromagnet provided on the surface of the conveyance path (65) opposite to the surface on which the conveyed object moves, and a drive circuit for supplying a current to the electromagnet, the electromagnet including teeth (22a, 22b) formed from a magnetic body, and windings (21a, 21b) wound onto the surface of the teeth (22a, 22b), a yoke (26) is provided that supports the teeth (22a, 22b), and the relationship between the minimum cross-sectional area Sy of the yoke (26) and the minimum cross-sectional area St of the part of the teeth (22a, 22b) where the windings (21a, 21b) are provided is Sy
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8.发明申请公开(公告)号：US20210398723A1
公开(公告)日：2021-12-23
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
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：US20240420877A1
公开(公告)日：2024-12-19
申请号：US18704389
申请日：2022-09-13
Applicant: Hitachi High-Tech Corporation
Inventor： Satoru KANEKO , Takahiro SUZUKI , Yasuaki AOYAMA , Ryosuke HOSHI , Shinji AZUMA , Takeshi TAMAKOSHI
Abstract: Provided is a conveyance device that conveys a conveyance object having a magnetic body, the conveyance device including: a plurality of coils configured to generate magnetic flux acting on the magnetic body; a coil driving unit configured to apply a voltage to each of the plurality of coils; and a calculation control unit including a current control unit and a position estimation unit. The current control unit determines the voltage. The position estimation unit estimates a position of the conveyance object based on a change in a current generated by applying a voltage pulse to the coils and switches, according to a position estimation value that indicates the position of the conveyance object estimated by the position estimation unit, between a speed control mode in which a speed of the conveyance object is controlled and a current control mode in which a current through the coils is controlled. Accordingly, in the conveyance device that has a function of estimating the position of the conveyance object based on information on the current flowing through winding wires of the coils, it is possible to implement stable conveyance speed control even in a section in which accuracy for estimating the position or speed of the conveyance object is low.
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公开(公告)号：US20240405699A1
公开(公告)日：2024-12-05
申请号：US18696153
申请日：2022-08-10
Applicant: Hitachi High-Tech Corporation
Inventor： Takahiro SUZUKI , Satoru KANEKO , Shinji AZUMA , Takeshi TAMAKOSHI
Abstract: To prevent liquid sloshing caused by switching a coil to be energized in a transport device. A transport device that transports an object to be transported provided with a magnetic body, the transport device includes: a plurality of coils configured to generate a thrust for transporting the object to be transported; a coil drive unit configured to apply a pulsed voltage to each of the plurality of coils; and a calculation unit. When switching a coil to be energized, the calculation unit determines a width of the pulsed voltage such that a speed or an acceleration of the object to be transported is stabilized based on a position of the object to be transported and a time at which the object to be transported passes through the position or a current flowing through an energized coil in a predetermined period before switching the coil to be energized, and outputs the determined width to the coil drive unit.
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