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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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2.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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公开(公告)号：US20230027956A1
公开(公告)日：2023-01-26
申请号：US17785105
申请日：2020-12-01
Applicant: HITACHI HIGH-TECH CORPORATION
Inventor： Yuichiro SHIGA , Kuniaki ONIZAWA
Abstract: Provided are a specimen transport device, a specimen analysis system, a specimen pretreatment system, and a specimen transport method that can reduce human errors as compared with the related art. There are a plurality of magnetic bodies having different inductance characteristics, and a calculation unit calculates inductance characteristic values at a predetermined current value flowing through a magnetic pole detected by a current detection unit and specifies the type of the magnetic body having different inductance characteristics based on the obtained characteristic values to identify a holder.
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公开(公告)号：US20220034920A1
公开(公告)日：2022-02-03
申请号：US17280575
申请日：2019-09-24
Applicant: Hitachi High-Tech Corporation
Inventor： Yuichiro SHIGA , Kuniaki ONIZAWA
Abstract: In sample transporting devices, the operation sound of a belt conveyor and the driving sound of a drive motor are caused by operating a transporting line when transporting samples, and reducing the driving sound and operation sound is required. In the present invention, a detection signal of the detection sensor 309 is detected by a detection unit 310, and a control unit 111 performs controlling to change the current value and the driving frequency of a belt driving motor 304 of a transporting line 301 and change the driving torque and the driving rotary speed of the transporting line on the basis of the amount and number of samples transported by a belt 303, wherein the amount and number of samples transported by the belt can be obtained by the detection signal or a sample amount measured by a sample transporting system. Accordingly, noise reduction is achieved by driving the belt driving motor under suitable conditions according to the amount and number of the samples transported by the transporting line, and reducing the operation sound of the belt driving motor or mechanisms and the like.
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Patent Agency Ranking
公开(公告)号：US20210018524A1
公开(公告)日：2021-01-21
申请号：US16647117
申请日：2018-11-26
Applicant: HITACHI HIGH-TECH CORPORATION
Inventor： Shunsuke BABA , Kuniaki ONIZAWA
Abstract: A specimen processing system 100 which performs preprocessing and analysis of a specimen includes sensors 5a, 5b, . . . each detecting a driving state of a driving device installed in the system, an abnormality detecting part 3a determining from signal waveforms detected by the sensors 5a, 5b, . . . whether an abnormality occurs in the driving device, and a recording device sequentially recording the signal waveforms detected by the sensors 5a, 5b, . . . and storing a sensor signal waveform before or after the occurrence of an operation abnormality into an unerasable area when the abnormality is determined to have occurred in the abnormality detection part 3a. Consequently, there is provided a specimen processing system capable of realizing restoration from the time of the occurrence of an abnormality faster than in the past.
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公开(公告)号：US20240192241A1
公开(公告)日：2024-06-13
申请号：US18286403
申请日：2022-04-07
Applicant: Hitachi High-Tech Corporation
Inventor： Yuichiro SHIGA , Kuniaki ONIZAWA
CPC classification number: G01N35/04 , B65G54/02 , G01N35/00584 , G01N2035/0477
Abstract: There is provided a sample conveying device capable of maintaining conveyance thrust for a sample container even when a conductor resistance is changed due to the heat generated in a winding. A sample conveying device according to the present invention calculates a decrease in the current from a set current value due to an increase in a conductor resistance of a winding when the current flows through the winding to change the current value of the current by using the calculated decrease.
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公开(公告)号：US20230273229A1
公开(公告)日：2023-08-31
申请号：US18020220
申请日：2021-03-18
Applicant: Hitachi High-Tech Corporation
Inventor： Yasuaki AOYAMA , Satoru KANEKO , Hiroyuki KOBAYASHI , Takeshi TAMAKOSHI , Ryosuke HOSHI , Hiroshi WATANABE , Kuniaki ONIZAWA
IPC: G01N35/04
CPC classification number: G01N35/04 , G01N2035/0477 , G01N2035/0401
Abstract: Provided is a sample transport device, a sample analysis system, and a sample pretreatment device which have high positional accuracy when stopping a sample and can adjust a minute position when stopping the sample. A sample transport device (1a) according to the present invention includes: a sample provided with a permanent magnet (10); a transport path through which the sample is to be transported via the permanent magnet (10); a plurality of coils provided on a surface of the transport path opposite to a surface on which the sample is to be transported; and a drive circuit that causes a current to flow through the coils. The drive circuit adjusts a force applied to the permanent magnet in a vertical direction by a current flowing through a first coil (30B) immediately below a position at which the permanent magnet (10) is to be stopped, and adjusts a force applied to the permanent magnet (10) in a horizontal direction by a current flowing through a second coil (30C) adjacent to the first coil, and adjusts a stop position of the permanent magnet (10).
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公开(公告)号：US20230211964A1
公开(公告)日：2023-07-06
申请号：US17928346
申请日：2021-02-05
Applicant: Hitachi High-Tech Corporation
Inventor： Hiroyuki KOBAYASHI , Satoru KANEKO , Takeshi TAMAKOSHI , Yasuaki AOYAMA , Ryosuke HOSHI , Hiroshi WATANABE , Kuniaki ONIZAWA
CPC classification number: B65G54/02 , G01N35/04 , G01N2035/0477
Abstract: Provided are a transport device and an analysis system in which a stability of transport at a time of restart is further enhanced while achieving cost reduction by a position-sensorless configuration. A transport device includes: a plurality of coils 25a, 25b configured to generate a thrust to transport a transport container 20; a drive circuit 50 configured to apply a voltage to each of the plurality of coils 25a, 25b; and a calculation unit 40 configured to estimate a position of the transport container 20 based on current information when voltage pulses 80, 81 are applied to the coils 25a, 25b. When a power supply of the device is activated, the calculation unit 40 applies a voltage pulse 80 in a positive direction and a voltage pulse 81 in a negative direction to the target coils 25a, 25b so as to detect the position of the transport container 20 from the current information of current flowing through the coils 25a, 25b.
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公开(公告)号：US20230184798A1
公开(公告)日：2023-06-15
申请号：US17923616
申请日：2021-03-25
Applicant: Hitachi High-Tech Corporation
Inventor： Satoru KANEKO , Yasuaki AOYAMA , Ryosuke HOSHI , Takeshi TAMAKOSHI , Hiroyuki KOBAYASHI , Kuniaki ONIZAWA
IPC: G01N35/04
CPC classification number: G01N35/04 , G01N2035/0477
Abstract: A sample transport device includes: a sample container configured to accommodate a sample and provided with a magnetic body; a transport surface on which the sample container is to be transported; a plurality of coils disposed on a surface of the transport surface that is opposite to a surface facing the magnetic body; a coil drive unit configured to apply a voltage to the coils; and a position estimation unit configured to estimate a position of the sample container based on a current change generated when the coil drive unit applies the voltage to the coils. The position estimation unit estimates the position of the transport container by the coil drive unit applying voltage pulses having a phase difference to adjacent coils among the plurality of coils.
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