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公开(公告)号：US20240094048A1
公开(公告)日：2024-03-21
申请号：US18269520
申请日：2021-12-07
Applicant: A&D COMPANY, LIMITED
Inventor： Kazuna OKABE , Hisanori ODA
CPC classification number: G01G23/01 , G01G21/22 , G01G21/286 , G01G23/18
Abstract: In order to achieve the object described above, an electronic balance includes a weighing pan, a windshield, door opening and closing mechanisms configured to automatically open and close doors of the windshield, a weight sensor, a built-in weight, a weight applying and removing mechanism for the built-in weight, and a control unit, the control unit measures a standard deviation of the built-in weight as an actual use standard deviation (SDreal) accompanied by a series of opening and closing operations consisting of opening the door by the door opening and closing mechanism, loading the built-in weight by the weight applying and removing mechanism, closing the door by the door opening and closing mechanism, acquiring weighing data of the built-in weight, opening the door by the door opening and closing mechanism, unloading the built-in weight by the weight applying and removing mechanism, and closing the door by the door opening and closing mechanism.
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公开(公告)号：US20230113500A1
公开(公告)日：2023-04-13
申请号：US17909750
申请日：2020-03-17
Applicant: A&D COMPANY, LIMITED
Inventor： Hisanori ODA
Abstract: A windshield for a balance is provided, and the windshield to be attached to a balance to define a weighing chamber, includes openable and closable doors constituting portions of the weighing chamber, opening and closing mechanisms configured to open and close the doors, sensors configured to detect movement of the doors, and a control unit configured to command the opening and closing mechanism to open and close the door when a movement of the door from a stationary state is detected by the sensors. When an operator slightly moves the door from a stationary state to open or close the door, the sensor detects this, and the door is automatically opened or closed.
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公开(公告)号：US20230075383A1
公开(公告)日：2023-03-09
申请号：US17798257
申请日：2020-03-17
Applicant: A&D COMPANY, LIMITED
Inventor： Hisanori ODA
IPC: G01G21/28
Abstract: Provided is a windshield for a balance, for which opening and closing doors of the windshield are smoothly moved without wobbling, dust or the like is unlikely to accumulate on the part of guide rails that guide the opening and closing doors, and cleaning is easy. Upper portions of the pair of opening and closing doors of the windshield are respectively suspended by upper frames provided along respective side portions of an upper surface door, and the opening and closing doors are reciprocated by air cylinders by being guided by guide rails each formed of a horizontal portion and a vertical portion. On the respective horizontal portions, projections that restrict lower ends of the respective opening and closing doors from being displaced in separating directions from the vertical portions are provided along movement paths of the respective opening and closing doors.
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公开(公告)号：US20240060816A1
公开(公告)日：2024-02-22
申请号：US18269493
申请日：2020-12-25
Applicant: A&D COMPANY, LIMITED
Inventor： Kazuna OKABE , Hisanori ODA
CPC classification number: G01G23/01 , E05F15/70 , G01G21/286 , E05Y2900/608
Abstract: An electronic balance includes a weighing pan, a windshield, door opening and closing mechanisms configured to automatically open and close doors of the windshield, a weight sensor, a built-in weight, a weight applying and removing mechanism for the built-in weight, and a control unit, the control unit obtains a first standard deviation measured while the doors of the windshield are left closed, and a second standard deviation measured accompanied by a series of opening and closing operations consisting of opening the door by the door opening and closing mechanism, loading the built-in weight by the weight applying and removing mechanism, closing the door by the door opening and closing mechanism, acquiring weighing data of the built-in weight, opening the door by the door opening and closing mechanism, unloading the built-in weight by the weight applying and removing mechanism, and closing the door by the opening and closing mechanism.
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公开(公告)号：US20230304848A1
公开(公告)日：2023-09-28
申请号：US18012197
申请日：2020-07-06
Applicant: A&D COMPANY, LIMITED
Inventor： Hisanori ODA
CPC classification number: G01G21/286 , G01G21/22
Abstract: The windshield includes an outer windshield defining a weighing chamber, and an inner windshield disposed inside the outer windshield and covering the weighing pan, the outer windshield includes a pair of left and right sliding doors openable and closable in side surfaces, and the inner windshield is provided with an opening in a surface facing one of the sliding doors, and a shielding wall is provided at a lower portion of the opening. An air flow generated when the sliding door of the outer windshield is opened or closed moves along a floor surface of the outer windshield toward the weighing pan, but is blocked by the shielding wall and does not flow into the inside of the inner windshield.
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Patent Agency Ranking
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：US20240271989A1
公开(公告)日：2024-08-15
申请号：US18567349
申请日：2021-06-28
Applicant: A&D COMPANY, LIMITED
Inventor： Hisanori ODA
IPC: G01G21/28
CPC classification number: G01G21/286
Abstract: The balance includes the double windshield including an inner windshield that covers a weighing pan, and an outer windshield that covers the inner windshield, the respective windshields include sliding doors openable and closable on a lateral surface, a pair of engagement members configured to link sliding doors positioned on the same lateral surface side of the respective windshields so as to move in the same direction are provided, a protrusion is provided on one engagement member, and a recess is provided in the other engagement member, the protrusion is configured to enter into and exit from the recess, when the protrusion enters into the recess, the pair of engagement members is brought into an engaged state, and in such an engaged state, the sliding doors are linked together to be capable of opening and closing simultaneously.
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公开(公告)号：US20240094049A1
公开(公告)日：2024-03-21
申请号：US18269467
申请日：2020-12-25
Applicant: A&D COMPANY, LIMITED
Inventor： Hisanori ODA
CPC classification number: G01G23/16 , G01G13/02 , G01G21/286
Abstract: The electronic balance is configured to be capable of performing the following series of operations (I) to (VII) automatically: (I) The opening and closing mechanism opens the door. (II) The moving up/down mechanism applies the load of the built-in weight to the weighing mechanism. (III) The opening and closing mechanism closes the door. (IV) After a predetermined period of time elapses, the opening and closing mechanism opens the door. (V) The moving up/down mechanism removes the load of the built-in weight from the weighing mechanism. (VI) The opening and closing mechanism closes the door. (VII) The control unit performs zero-point adjustment of the weighed value. Accordingly, operation of preliminary loading is automatically performed, and thus the stability of the weighing accuracy is improved.
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公开(公告)号：US20220333975A1
公开(公告)日：2022-10-20
申请号：US17765789
申请日：2019-11-06
Applicant: A&D COMPANY, LIMITED
Inventor： Hisanori ODA
IPC: G01G21/30
Abstract: A windshield for an electronic balance is provided which includes air cylinders incorporated inside as driving mechanisms, doors supported by a hanging manner by guide holes at least one end portion of which is open, and joint members interposed between the air cylinders and the doors. The joint members are also supported in a hanging manner in the guide holes, and upper portions of the joint members are joined to the air cylinders incorporated inside. The doors can be automatically opened and closed, and can be easily joined to and released from the driving mechanisms, and easily detached from the windshield by a simple structure.
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公开(公告)号：US20200094243A1
公开(公告)日：2020-03-26
申请号：US16328602
申请日：2016-09-27
Applicant: A&D COMPANY, LIMITED
Inventor： Chika ARIGA , Yuji FUKAMI , Hisanori ODA
IPC: B01L3/02
Abstract: Operability, accuracy, and safety when fitting a glass-made pipette tip to a pipette are improved. A pipette tip fitting adapter includes a hollow body having one end portion configured to serve as a tip inserting portion into which a pipette tip is inserted, and the other end portion configured to serve as a pipette inserting portion into which a pipette is inserted, and at an opening side of an inner circumferential surface of the tip inserting portion, seal portions projecting inward are formed in a circumferential direction. Accordingly, a pipette tip that is long and heavy like a glass tip can be held.
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