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公开(公告)号：US10591555B2
公开(公告)日：2020-03-17
申请号：US16078604
申请日：2017-03-14
摘要： A magnetic sensor device includes: a magnet; a magnetic-resistance-effect-element mounted substrate on which a magnetic-resistance-effect-element mounted body is mounted on a surface thereof opposite to a surface thereof facing the magnet, the magnetic-resistance-effect-element mounted body extending in the longitudinal direction of the magnet; a case that accommodates or retains the magnet and the magnetic-resistance-effect-element mounted substrate; and a magnetic shield that covers the case except for the surface of the magnetic-resistance-effect-element mounted substrate on which is mounted the magnetic-resistance-effect-element mounted body. The magnetic shield covers the case at a position corresponding to the surface of the magnetic-resistance-effect-element mounted substrate facing the magnet, or from the position corresponding to the surface of the magnetic-resistance-effect-element mounted substrate facing the magnet to a side of the case opposite to the magnet.
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公开(公告)号：US10008315B2
公开(公告)日：2018-06-26
申请号：US15599738
申请日：2017-05-19
IPC分类号： H01F7/02
CPC分类号： H01F7/021
摘要： A magnetic circuit, provided with a short magnet (1a) and short magnet (1b) that are arranged in an array, and a yoke (2a) and a yoke (2b) provided so as to sandwich the short magnet (1a) and short magnet (1b). The short magnet (1a) and short magnet (1b), are arranged, that have a space between them that is a predetermined gap (3) or less in the arrangement direction of the array respectively. In addition, the short magnet (1a) and short magnet (1b) are arranged so that one magnetic pole is located on the side toward one of the pair of yokes (2a) and (2b), and the other magnetic pole is located on the side toward the other yoke.
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公开(公告)号：US09664533B2
公开(公告)日：2017-05-30
申请号：US14765382
申请日：2014-02-05
发明人： Hiroyuki Asano , Toshiaki Shoji , Tomokazu Ogomi , Kenji Shimohata , Masaaki Okada , Miki Kagano , Masashi Hino , Hideki Matsui
摘要： A magnetic field generator disposed on one surface side of a sheet-shaped object-to-be-detected contains a magnetic component. The magnetic field generator includes a first magnetic pole part that forms a first magnetic pole, and a second magnetic pole part that forms a second magnetic pole with reverse polarity of the first magnetic pole. The magnetic field generator generates a cross magnetic field that crosses the object-to-be-detected. An MR element is disposed between the first magnetic pole part and the object-to-be-detected. The resistance value of the MR element changes according to a change in a component of the cross magnetic field in a conveying direction. The position of the MR element in the conveying direction is position shifted along the conveying direction from the center position of the first magnetic pole part in the conveying direction, and located between both ends of the first magnetic pole part in the conveying direction.
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公开(公告)号：US10999456B2
公开(公告)日：2021-05-04
申请号：US16618686
申请日：2018-12-07
发明人： Daisuke Ohama , Hideki Kunishio , Masaaki Okada , Yuki Okuhigashi , Masahiko Takashina , Masaki Wakisaka
摘要： An image reading device includes light guides (5, 6) that emit light to an object to be read, a lens body (8) that condenses reflected light, a light receiver (13) that receives the reflected light, a sensor board (24) on which is mounted the light receiver (13), a lens holder (11), and a housing (9) that houses or holds these components. The lens holder (11) includes a holder bottom (11g), light guide positioners (11a, 11b) and lens body holders (11e, 11f). In the lens holder (11), the lens body (8) is attached between the lens body holders (11e, 11f), the sensor board (24) is attached to the holder bottom (11g) such that the light receiver (13) aligns with an optical axis of the lens body (8), and the light guides (5, 6) are attached to the light guide positioners (11a, 11b). A surface of each light guide positioner (11a, 11b) that faces the corresponding light guide (5, 6) to be attached has at least a portion having a same shape a s a shape of a surface of the light guide.
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公开(公告)号：US10663320B2
公开(公告)日：2020-05-26
申请号：US16333095
申请日：2017-10-24
发明人： Hiroaki Kahara , Masaaki Okada , Tatsuya Kunieda , Tomokazu Ogomi , Hideki Matsui , Sadaaki Yoshioka
IPC分类号： G01D5/16 , G07D11/235 , G01R33/00 , G01R33/09
摘要： A magnetic sensor device includes a magnet to form a magnetic field in a conveyance path of a detection target, a magnetoresistance effect element to output a change in the magnetic field as a change in a resistance value, a casing to enclose or hold the magnet and the magnetoresistance effect element, a cover to cover the magnetoresistance effect element and form a conveyance path surface that is a surface along the conveyance path, and a signal amplification board having a signal amplification IC disposed on an intersection surface that intersects the conveyance path surface. The signal amplification IC amplifies the change in the resistance value that is output by the magnetoresistance effect element. The change in the resistance value depends on the change in the magnetic field caused due to conveyance of the detection target on the conveyance path surface.
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公开(公告)号：US10348924B2
公开(公告)日：2019-07-09
申请号：US15752736
申请日：2016-12-15
发明人： Akiko Fujiuchi , Shunsuke Takatori , Masaaki Okada
摘要： A light receiving unit including: a sensor board assembly on which plural sensor tips are arrayed in a line in a longitudinal direction of the sensor board and mounted on the sensor board; and a sensor plate on which plural of the sensor board assemblies are arrayed and mounted in a line in the longitudinal direction. The sensor chips include plural pixels formed in a line in the longitudinal direction. At longitudinal ends of the sensor board assembly, the sensor chips protrude outward in the longitudinal direction from the longitudinal ends. Between the facing sensor chips of the adjacent sensor board assemblies, the facing sensor chips mounted at the longitudinal ends, the ends of the facing sensor chips are spaced at a predetermined interval. The sensor board includes convex portions, at the longitudinal ends, protruding in the longitudinal direction. The sensor chips are mounted at the convex portion.
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公开(公告)号：US20180306873A1
公开(公告)日：2018-10-25
申请号：US15524812
申请日：2016-01-26
IPC分类号： G01R33/038 , G07D7/04 , G01D5/16 , G01R33/09
CPC分类号： G01R33/0385 , G01D5/16 , G01R33/02 , G01R33/09 , G01R33/091 , G01R33/096 , G07D7/04
摘要： A magnetic sensor device that includes: a bar-shaped magnet; a soft magnetic carrier that is arranged parallel to magnet along the longitudinal direction of magnet, that has a magnetoresistive effect element on a surface thereof opposite to a surface facing magnet, and that extends across the lateral length of magnet; and a guide that has a bottom interposed between magnet and carrier and a side wall standing upright from the bottom along a side of magnet contacting a surface of magnet facing carrier, the bottom and the side wall being formed of a nonmagnetic body contacting magnet and extending in the longitudinal direction of magnet. The magnet is attracted to and held by the carrier, with the guide interposed therebetween, due to the magnetic attractive force between the magnet and the carrier.
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公开(公告)号：US10162018B2
公开(公告)日：2018-12-25
申请号：US15524812
申请日：2016-01-26
IPC分类号： G01D5/16 , G07D7/04 , G01R33/09 , G01R33/038
摘要： A magnetic sensor device that includes: a bar-shaped magnet; a soft magnetic carrier that is arranged parallel to magnet along the longitudinal direction of magnet, that has a magnetoresistive effect element on a surface thereof opposite to a surface facing magnet, and that extends across the lateral length of magnet; and a guide that has a bottom interposed between magnet and carrier and a side wall standing upright from the bottom along a side of magnet contacting a surface of magnet facing carrier, the bottom and the side wall being formed of a nonmagnetic body contacting magnet and extending in the longitudinal direction of magnet. The magnet is attracted to and held by the carrier, with the guide interposed therebetween, due to the magnetic attractive force between the magnet and the carrier.
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公开(公告)号：US11330134B2
公开(公告)日：2022-05-10
申请号：US16485329
申请日：2018-04-11
发明人： Masaaki Okada , Toru Shiraki , Daisuke Ohama , Homare Takeda , Masahiko Takashina , Yuki Okuhigashi
摘要： An image-reading apparatus includes a housing having a rectangular-shaped opening on a side of a reading target, a lens portion retained or housed within the housing, and a sensor element to receive light condensed by the lens portion, the light being from the reading target. Long sides of the opening include a first layer that is flat and is disposed on the side of the reading target and a second layer that is continuous with the first layer. The long sides of the opening of the housing of the image-reading apparatus has a flat surface on the side of the reading target and an interface between the first layer and the second layer that is curved.
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