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

IPC: G01N35/04 ,  B65G54/02

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

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

IPC: H01F7/06 ,  H01F7/02 ,  B65G54/02 ,  G01N35/02

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.

公开(公告)号：US20250123301A1

公开(公告)日：2025-04-17

申请号：US18688492

申请日：2022-06-29

Applicant: HITACHI HIGH-TECH CORPORATION

Inventor： Kazuma TAMURA ,  Hiroshi WATANABE

IPC: G01N35/10

Abstract: Provided is a preprocessing device that carries out a dispensing process for aspirating a liquid sample accommodated in a sample container, and subsequently discharging and dispensing the sample into another sample container, the preprocessing device comprising: a dispensing nozzle; a dispensing nozzle tip detachably provided to the distal end of the dispensing nozzle; a disposal box in which the dispensing nozzle tip is disposed of after having been removed from the dispensing nozzle; and a cutting mechanism for cutting a dispensing nozzle tip inserted into a removal part, which removes the dispensing nozzle tip from the dispensing nozzle, from the longitudinal-direction side. This makes it possible to improve accommodation efficiency while suppressing accumulation of disposed-of dispensing nozzle tips.

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).

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

IPC: B65G54/02 ,  G01N35/04

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.

公开(公告)号：US20210356485A1

公开(公告)日：2021-11-18

申请号：US17278413

申请日：2020-02-14

Applicant: Hitachi High-Tech Corporation

Inventor： Shigeki YAMAGUCHI ,  Hiroshi WATANABE ,  Kazuma TAMURA

IPC: G01N35/04 ,  G01N35/00 ,  B01L3/00 ,  B01L9/00

Abstract: The present invention makes a directional control means for a specimen carrier unnecessary, reduces costs, and saves time. A high friction member 102 is provided on the bottom surface of a specimen carrier 100, thereby offsetting the center 14 of the frictional force 11 between the bottom surface and a conveyance surface, at a position separate from the rotational center of the bottom part of the specimen carrier 100. As a result, the friction between the conveyance surface and the bottom surface during conveyance of the specimen carrier 100 aligns the orientation of the specimen carrier 100 with respect to a conveyance direction 10, and makes it possible to make a carrier ID 101 and a specimen ID label 151 face towards a barcode reader.

公开(公告)号：US20240248106A1

公开(公告)日：2024-07-25

申请号：US18560428

申请日：2022-02-28

Applicant: Hitachi High-Tech Corporation

Inventor： Shinji AZUMA ,  Hiroki AKASE ,  Hiroshi WATANABE ,  Shigeru YANO

IPC: G01N35/04

CPC classification number: G01N35/04 ,  G01N2035/0477

Abstract: There is provided a sample conveying device capable of stable conveyance while suppressing power consumption, a sample analysis system, and a method for conveying a sample. In the sample conveying device, the specifications of one of coils 706, 706B, 706C, 706D, 706E, 706F, and 706G or coil shafts 705, 705A, 705C, 705D, 705E, 705F, and 705G are different between magnetic poles 707A, 707B, 707C, 707E, and 707G directly below positions where a container holder 100 does not stop and the magnetic poles 707, 707D, and 707G directly below positions where the container holder 100 stops in a conveyance tile 120.

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

IPC: B65G54/02 ,  G01N35/04

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.

公开(公告)号：US20230366899A1

公开(公告)日：2023-11-16

申请号：US18029788

申请日：2021-07-28

Applicant: Hitachi High-Tech Corporation

Inventor： Shinji AZUMA ,  Hiroshi WATANABE

IPC: G01N35/04 ,  G01N35/00 ,  B65G54/02

CPC classification number: G01N35/04 ,  G01N35/00584 ,  B65G54/02 ,  G01N2035/0477

Abstract: There are provided a sample container carrier and a sample conveying device capable of reducing a frictional force generated between a container carrier and a conveying plane during conveyance of the container carrier as compared with a case in the related art.
In a conveying device 700, a container carrier 100 includes: a magnetic material body 105; a grip 101 that supports a sample container 150; and a rotating body 111 that is disposed so as to be in contact with a conveying surface 120 for conveying the container carrier 100 and rotates as the container carrier 100 moves, in which the container carrier is conveyed by an electromagnetic force acting on the magnetic material body 105.

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

IPC: G01N35/04 ,  B65G54/02 ,  H02K41/03

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.