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公开(公告)号:US10786810B2
公开(公告)日:2020-09-29
申请号:US15774911
申请日:2016-01-07
Applicant: A&D COMPANY, LIMITED
Inventor: Naoto Izumo , Hisanori Oda
Abstract: Provided is a multichannel pipette whose number of channels can be arbitrarily set and managed to improve usability of the multichannel pipette and improve productivity, quality control, and maintainability in a research site. A multichannel pipette includes a pipette main body, a lower part attached to a lower end portion of the pipette main body, and a plurality of chip holder units housed inside the lower part, wherein each of the chip holder units has a connecting portion attachable to and removable from any of a plurality of to-be-connected portions provided in a unit case inside the lower part, and each of the chip holder units is attachable to and removable from the lower part.
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公开(公告)号:US10375933B2
公开(公告)日:2019-08-13
申请号:US15526238
申请日:2014-12-12
Applicant: A&D COMPANY, LIMITED
Inventor: Naoto Izumo
IPC: A01K1/03 , A01K29/00 , G01G19/02 , G01G19/414 , G01G17/08
Abstract: Provided is a system for observing and analyzing an animal behavior by utilizing a balance. The animal behavior observation system includes an animal container where an animal move around, a weight measuring apparatus that has a weight detecting unit for obtaining measurement data of the animal on the animal container, an analyzing device enabling calculation of a measurement value in accordance with the measurement data, a recording device that constantly stores the measurement value; and an output device that outputs the measurement value along a time axis.
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公开(公告)号:US20190162587A1
公开(公告)日:2019-05-30
申请号:US16302161
申请日:2016-07-26
Applicant: A&D COMPANY, LIMITED
Inventor: Masahiro KANNO , Shunsuke KASAMATSU
Abstract: Provided is a protective cover for a weighing instrument in which movement of a sliding door does not degrade over time. A protective cover (2) for a weighing instrument includes sliding doors (2L, 2R) defining a weighing chamber (5), an upper frame (11) formed at an upper edge of the sliding door, a lower frame (12) formed at a lower edge of the sliding door, an upper guide rail (17) disposed on the upper frame, and a lower guide rail (18) disposed under the lower frame, where the upper guide rail suspends the upper frame, and between the upper guide rail and the upper frame, balls (215) are disposed at a plurality of positions in a moving direction of the sliding door.
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公开(公告)号:US20180372586A1
公开(公告)日:2018-12-27
申请号:US15775229
申请日:2016-11-08
Applicant: A&D COMPANY, LIMITED
Inventor: Atsushi OGAWA , Jun UCHIDA
IPC: G01M15/04
Abstract: To provide an engine test apparatus and method, which can easily enhance the test accuracy.The engine test apparatus 10 of the present invention includes: a dynamometer 14, which applies torque to an output shaft of an engine 12 via a shaft member 32; a torque meter 36, which is disposed on the shaft member 32 and measures torque; and a control device 20, which computes a torque command value using a rotational frequency feedback value in order to apply feedback control based on a rotational frequency to the dynamometer 14. The control device 20 subtracts a value measured by the torque meter 14 from the torque command value to find a correction torque command value and controls the dynamometer 14 using the correction torque command value.
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公开(公告)号:US20180318824A1
公开(公告)日:2018-11-08
申请号:US15774911
申请日:2016-01-07
Applicant: A&D COMPANY, LIMITED
Inventor: Naoto IZUMO , Hisanori ODA
Abstract: Provided is a multichannel pipette whose number of channels can be arbitrarily set and managed to improve usability of the multichannel pipette and improve productivity, quality control, and maintainability in a research site. A multichannel pipette includes a pipette main body, a lower part attached to a lower end portion of the pipette main body, and a plurality of chip holder units housed inside the lower part, wherein each of the chip holder units has a connecting portion attachable to and removable from any of a plurality of to-be-connected portions provided in a unit case inside the lower part, and each of the chip holder units is attachable to and removable from the lower part.
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公开(公告)号:USD814039S1
公开(公告)日:2018-03-27
申请号:US29615838
申请日:2017-08-31
Applicant: A&D COMPANY, LIMITED
Designer: Yasuhiko Shinozaki , Toshiaki Machitani , Tatsuro Tago , Kazuhiko Koyano
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公开(公告)号:US20180058913A1
公开(公告)日:2018-03-01
申请号:US15557668
申请日:2015-03-26
Applicant: A&D COMPANY, LIMITED
Inventor: Naoto IZUMO , Satoshi SUZAKI
CPC classification number: G01G23/005 , G01G21/22 , G01G21/23 , G01G21/28 , G01G23/02
Abstract: Provided is an overload prevention mechanism having a structure that protects a weight sensor with a floating action and ensuring the reproducibility of the return position of the weight sensor. The overload prevention mechanism has a resilient member that is interposed between the weight sensor and the case, supports the weight sensor in a pressing manner against the case, and when a certain plate load or greater is imposed causes the weight sensor to separate from the case and thereby be released from the load, a guide member that is arranged in a standing manner between the weight sensor and the case, and a guide receiving seat that is provided in the weight sensor or the case and engages with the guide member.
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公开(公告)号:US09897495B2
公开(公告)日:2018-02-20
申请号:US14441718
申请日:2012-11-12
Applicant: A&D Company, Limited
Inventor: Isao Sato
CPC classification number: G01L1/2262 , G01G3/1402 , G01G23/005 , G01L1/2243
Abstract: A load cell includes a flexural element in which a Roberval mechanism is formed by a pair of top and bottom parallel beams each including two thin sections at a back and a front in a longitudinal direction, which are integrated with a fixed portion and a movable portion, and strain gauges bonded to the thin sections. Strain gauges are bonded to one of the thin sections of pulling side and to one of the thin sections of compressing side, and circular apertures are formed through the remaining two thin sections. The performances of the load cell such as the reduction of the measurement error and of the period of time before the start of the measurement are achieved.
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公开(公告)号:US20180031448A1
公开(公告)日:2018-02-01
申请号:US15658518
申请日:2017-07-25
Applicant: A&D Company, Limited
Inventor: Mitsuharu Sugita , Yuta Egashira , Keisuke Yasuno
Abstract: An engine test apparatus includes a dynamometer connected to an engine through a shaft, and a control device configured to control operations of the engine and the dynamometer, and the engine test apparatus further includes a speed measuring device configured to measure a rotation speed of the output shaft of the engine and transmit the rotation speed to the control device the control device includes an engine control unit configured to control operation of the engine, and a dynamometer control unit configured to control operation of the dynamometer, the dynamometer control unit uses the rotation speed transmitted from the speed measuring device to generate a torque current command corresponding to a torque value to be generated by the dynamometer, in order to operate the engine controlled to be operated by the engine control unit in an unloaded state as if the shaft and the dynamometer are not connected.
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公开(公告)号:US09841313B2
公开(公告)日:2017-12-12
申请号:US15255677
申请日:2016-09-02
Applicant: A&D Company, Limited
Inventor: Naoto Izumo , Akiyoshi Ota
CPC classification number: G01G23/00 , A47B91/024 , G01G19/56 , G01G21/28 , G01G23/002
Abstract: Provided is a leveling mechanism for a weighing device that facilitates horizontal leveling of the weighing device. The leveling mechanism (2) includes a foot piece (10) having a foot portion (11) that in contact with an installation surface and a foot piece shaft (12) that extends upward from the foot portion and has a male screw (14) on its outer periphery, a rotatable body (20) having on its inner periphery a female screw, a housing (30) for accommodating the rotatable body engaged with the foot piece, a fixing portion (S2, 36) for fixing the housing to a device case (3), and a housing space (6) covering the housing, provided in the device case. The leveling mechanism converts a rotational motion of the rotatable body to a vertical motion of the foot piece.
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