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公开(公告)号：US11642693B2
公开(公告)日：2023-05-09
申请号：US17672442
申请日：2022-02-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Roberto A. Pugliese , Jeffrey A. Nielsen , Christie Dudenhoefer , Craig Olbrich , Debora J. Thomas
Abstract: An alignment system, in an example, may include a substrate comprising at least one nanowell, at least one fluid ejection device comprising at least one die, the at least one die comprising as least one nozzle, and an alignment device to align the at least one nozzle to the at least one nanowell.
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公开(公告)号：US11364726B2
公开(公告)日：2022-06-21
申请号：US17268197
申请日：2018-12-26
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jeffrey A. Nielsen
Abstract: An example fluid dispensing system includes a printhead assembly comprising a printhead to dispense a given fluid in a printing process; and a first memory storing an identifier of the given fluid. The example fluid dispensing system further includes an accessory to interact with the printhead in a cleaning process or a storage process. The example fluid dispensing system further includes a second memory that is located with the accessory. The example fluid dispensing system further includes a read-write device to: read the identifier of the given fluid from the first memory; read the second memory; and, when the second memory does not store a fluid identifier, write the identifier of the given fluid to the second memory.
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公开(公告)号：US11364492B2
公开(公告)日：2022-06-21
申请号：US16085342
申请日：2016-03-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jeffrey A. Nielsen , Michael W. Cumbie , Devin Alexander Mourey , Silam J. Choy , Christie Dudenhoefer , Kenneth Ward
Abstract: A digital dispense apparatus comprising a plurality of fluid dispense devices, at least one reservoir connected to the plurality of fluid dispense devices to deliver fluid to the plurality of fluid dispense devices, at least one contact pad array, and a single monolithic carrier structure.
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公开(公告)号：US20210069744A1
公开(公告)日：2021-03-11
申请号：US16766246
申请日：2018-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Roberto A. Pugliese , Jeffrey A. Nielsen , Christie Dudenhoefer , Craig Olbrich , Debora J. Thomas
Abstract: An alignment system, in an example, may include a substrate comprising at least one nanowell, at least one fluid ejection device comprising at least one die, the at least one die comprising as least one nozzle, and an alignment device to align the at least one nozzle to the at least one nanowell.
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公开(公告)号：US20200326317A1
公开(公告)日：2020-10-15
申请号：US16767258
申请日：2018-01-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Christie Dudenhoefer , Jeffrey A. Nielsen , Debora J. Thomas
Abstract: In one example in accordance with the present disclosure, a fluidic ejection system is described. The fluidic ejection system includes a frame to retain a number of fluidic ejection devices. The frame has a form factor to match a titration plate. The fluidic ejection system also includes the number of fluidic ejection devices disposed on the frame. Each fluidic ejection device includes a reservoir disposed on a first side of the frame and a fluidic ejection die disposed on an opposite side of the frame. Each fluidic ejection die includes an array of nozzles, with each nozzle including an ejection chamber, an opening, and a fluid actuator disposed within the ejection chamber.
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Patent Agency Ranking
公开(公告)号：US12280594B2
公开(公告)日：2025-04-22
申请号：US17603475
申请日：2019-09-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jeffrey A. Nielsen , Matthew David Smith , Roberto A. Pugliese
IPC: B41J2/045
Abstract: In one example in accordance with the present disclosure, a fluid ejection system is described. The fluid ejection system includes a frame to retain a number of fluid ejection devices. Each fluid ejection device includes a reservoir disposed on a first side of the frame and a fluid ejection die disposed on an opposite side of the frame. Each fluid ejection die includes 1) a fluid feed slot formed in a substrate to receive fluid from the reservoir, 2) an array of nozzles formed in the substrate to eject fluid, and 3) an ejection adjustment system to selectively adjust an amount of fluid ejected from the fluid ejection devices.
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公开(公告)号：US20230241609A1
公开(公告)日：2023-08-03
申请号：US18010794
申请日：2020-06-17
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Jeffrey A. Nielsen , Viktor Shkolnikov , Erica Squires , Roberto A. Pugliese , Matthew D. Smith , Michael J. Day , Diane R. Hammerstad
CPC classification number: B01L3/502746 , G01N15/1031 , G01N15/1056 , B01L2300/0663 , B01L2400/08 , B01L2200/061 , B01L2200/027 , B01L2300/0867 , B01L2200/0647
Abstract: A method of detecting passage of a particle into a target location includes receiving a sample on a die including a microfluidic chamber, the microfluidic chamber including a microfluidic path coupling a reservoir to a foyer, and moving the sample from the reservoir to the foyer by firing a nozzle fluidically coupled to the foyer. The method further includes detecting passage of a particle of the sample from the reservoir to the foyer via a first sensor disposed within the microfluidic path, and detecting passage of the particle into the target location via a second sensor disposed between the first sensor and the nozzle. The method includes recording in a dispense map, an indication of whether the target location includes a single particle or multiple particles based on signals measured by the first sensor and the second sensor.
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公开(公告)号：US20220194078A1
公开(公告)日：2022-06-23
申请号：US17603475
申请日：2019-09-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jeffrey A. Nielsen , Matthew David Smith , Roberto A. Pugliese
IPC: B41J2/045
Abstract: In one example in accordance with the present disclosure, a fluid ejection system is described. The fluid ejection system includes a frame to retain a number of fluid ejection devices. Each fluid ejection device includes a reservoir disposed on a first side of the frame and a fluid ejection die disposed on an opposite side of the frame. Each fluid ejection die includes 1) a fluid feed slot formed in a substrate to receive fluid from the reservoir, 2) an array of nozzles formed in the substrate to eject fluid, and 3) an ejection adjustment system to selectively adjust an amount of fluid ejected from the fluid ejection devices.
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公开(公告)号：US11366125B2
公开(公告)日：2022-06-21
申请号：US16603119
申请日：2017-07-18
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jeffrey A. Nielsen , Christie Dudenhoefer
Abstract: Examples described herein also provide a substrate conveyance system. The substrate conveyance system may include a conveyor surface to convey a number of substrates, and a number of apertures defined in the conveyor surface between the substrates as positioned on the conveyor surface. The location of the apertures is based on a location at which at least one reagent module dispenses a reagent.
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公开(公告)号：US20220146544A1
公开(公告)日：2022-05-12
申请号：US17414031
申请日：2019-07-31
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Diane R. Hammerstad , Jeffrey A. Nielsen , Christie Dudenhoefer , Matthew Smith
Abstract: Aspects of the present disclosure relate to evaporation compensation in fluidic devices. An example apparatus for evaporation compensation includes an assessment circuit to determine an amount of evaporation of a volume dispensed in a microwell of a fluidic device. The amount of evaporation may be determined based on the volume in the microwell, and an amount of time after dispensing the volume in the microwell. A compensation circuit may determine, based on the amount of evaporation, a compensation factor for the microwell including an amount of a normalizing fluid to compensate for the amount of evaporation. The compensation circuit may also create a normalization profile for the fluidic device, including an association between the fluidic device and the compensation factor. A dispensing circuit may dispense the normalizing fluid in the microwell according to the normalization profile.
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