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公开(公告)号：US10384450B2
公开(公告)日：2019-08-20
申请号：US16259561
申请日：2019-01-28
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Chien-Hua Chen , Michael W. Cumbie , Diane R. Hammerstad
IPC: B41J2/14
Abstract: In one example, an inkjet printhead includes a printhead die embedded in a molding having a channel therein through which fluid may flow directly to the die. The die contains multiple fluid ejectors and multiple fluid chambers each near an ejector. Each chamber has an inlet through which fluid from the channel may enter the chamber and an outlet through which fluid may be ejected from the chamber. A perimeter of the channel surrounds the inlets but is otherwise unconstrained in size by the size of the die.
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公开(公告)号：US20190152225A1
公开(公告)日：2019-05-23
申请号：US16259561
申请日：2019-01-28
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Chien-Hua Chen , Michael W. Cumbie , Diane R. Hammerstad
IPC: B41J2/14
CPC classification number: B41J2/1433 , B41J2/1404 , B41J2002/14419 , B41J2202/20
Abstract: In one example, an inkjet printhead includes a printhead die embedded in a molding having a channel therein through which fluid may flow directly to the die. The die contains multiple fluid ejectors and multiple fluid chambers each near an ejector. Each chamber has an inlet through which fluid from the channel may enter the chamber and an outlet through which fluid may be ejected from the chamber. A perimeter of the channel surrounds the inlets but is otherwise unconstrained in size by the size of the die.
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公开(公告)号：US20160070514A1
公开(公告)日：2016-03-10
申请号：US14785448
申请日：2013-07-24
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Shinoj Bhaskaran , Ruby Tomar , Puneet Kumar Arora , Diane R. Hammerstad
CPC classification number: G06F3/1239 , G06F3/1219 , G06F3/1287 , G06K15/1809
Abstract: In one example of the disclosure, account data that is indicative of marking agent credits attributed to a printer is stored. The printer is a printer connected to a supply of marking agent. A marking agent credit is to authorize consumption of a credit amount of marking agent from the supply according to a subscription. A print job is received from a sponsor computing device. The account data is adjusted to add credits in an adjustment amount that is a function of marking agent consumption to print the job. The job is sent to the printer for printing.
Abstract translation: 在本公开的一个示例中，存储指示归因于打印机的标记代理信用的帐户数据。 打印机是连接到供应标记代理的打印机。 标记代理人信用证是根据订阅授权从供应商处消费标记代理人的信用额度。 从赞助商计算设备接收打印作业。 调整帐户数据以增加作为打印作业的标记代理消耗的函数的调整量中的信用。 该作业被发送到打印机进行打印。
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公开(公告)号：US12270820B2
公开(公告)日：2025-04-08
申请号：US17044996
申请日：2018-06-04
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jeffrey A. Nielsen , Christie Dudenhoefer , Debora J. Thomas , Roberto A Pugliese , Diane R. Hammerstad
Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes a plurality of ejection subassemblies. Each ejection subassembly includes an ejection chamber to hold a volume of fluid and an opening through which the volume of fluid is ejected via a fluid actuator. A pitch of the ejection subassemblies aligns with a spatial arrangement of nanowells in an array of nanowells on a substrate.
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公开(公告)号：US12145149B2
公开(公告)日：2024-11-19
申请号：US17415916
申请日：2019-03-08
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Diane R. Hammerstad , Alexander Govyadinov
IPC: B01L3/00
Abstract: A disposable microfluidic cassette can include a substrate and an engagement feature associated with the substrate to removably join the cassette with a cassette-receiver of an analytical system. A microfluidic network can be carried by the substrate. The microfluidic network can include a fluid inlet, a fluid outlet, and a sample manipulation portion fluidly coupling the fluid inlet to the fluid outlet. An ejector can be associated with the microfluidic network to move fluid out of the disposable microfluidic cassette via the fluid outlet.
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Patent Agency Ranking
公开(公告)号：US20230256440A1
公开(公告)日：2023-08-17
申请号：US18011502
申请日：2020-06-26
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Roberto A. Pugliese , Kathryn H. Cyr , Michael J. Day , Diane R. Hammerstad
CPC classification number: B01L3/502761 , G01N1/34 , B01L2200/0652 , B01L2300/0636 , B01L2300/088 , G01N2015/1081
Abstract: In one example in accordance with the present disclosure, am ejection system is described. The ejection system includes a fluid feed slot to supply fluid to a number of fluid ejection channels where each fluid ejection channel is a recirculating channel. Each fluid ejection channel includes a sensor to detect, in the fluid, a target particle to be ejected and a fluid ejector to eject the target particle from the fluid ejection channel. The ejection system also includes a controller to selectively activate the fluid ejector when the target particle presence is detected. Non-target particles are returned to the fluid feed slot past the fluid ejector.
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公开(公告)号：US11680957B2
公开(公告)日：2023-06-20
申请号：US16772390
申请日：2018-02-12
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander N. Govyadinov , Pavel Kornilovich , Diane R. Hammerstad
IPC: G05D7/06 , G01P5/20 , B01L3/00 , G01F1/7082 , G01F1/7084 , G01F1/7086
CPC classification number: G01P5/20 , B01L3/502715 , G01F1/7082 , G05D7/0676 , B01L2300/0627 , G01F1/7084 , G01F1/7086
Abstract: A microfluidic flow sensor may include a substrate having a microfluidic channel, an inert particle source to supply a fluid carrying an inert particle to the microfluidic channel and a sensor element along the microfluidic channel and spaced from the inert particle source. The sensor element outputs a signal based upon a sensed passage of the inert particle with respect to the sensor element. Portions of the microfluidic channel proximate the sensor element have a first size and wherein the inert particle provided by the inert particle source is to have a second size greater than one half the first size.
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公开(公告)号：US20220162645A1
公开(公告)日：2022-05-26
申请号：US17414641
申请日：2019-07-25
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Viktor Shkolnikov , Alexander Govyadinov , Diane R. Hammerstad
Abstract: In example implementations, an apparatus is provided. The apparatus includes a channel, a thermal inkjet (TIJ) resistor, and a transfection chamber. The TIJ resistor is to apply heat to a cell in the channel to porate the cell. The transfection chamber is to store a reagent to be inserted into the cell after the cell is porated.
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公开(公告)号：US20220080421A1
公开(公告)日：2022-03-17
申请号：US17414155
申请日：2019-05-13
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Viktor Shkolnikov , Alexander Govyadinov , Diane R. Hammerstad
Abstract: A system includes a microchannel analysis region, a first fluid actuation device, a second fluid actuation device, a sensor, and a controller. The first fluid actuation device is at a first end of the microchannel analysis region. The second fluid actuation device is at a second end of the microchannel analysis region opposite to the first end. The sensor is within the microchannel analysis region between the first fluid actuation device and the second fluid actuation device. The sensor measures an impedance of a fluid within the microchannel analysis region. The controller activates the first fluid actuation device to generate a first pressure wave in the fluid and activates the second fluid actuation device to generate a second pressure wave in the fluid. The first pressure wave and the second pressure wave converge at the sensor.
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公开(公告)号：US20220065815A1
公开(公告)日：2022-03-03
申请号：US17415388
申请日：2019-05-07
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Tod Woodford , Alexander Govyadinov , Brian J. Keefe , Diane R. Hammerstad
IPC: G01N27/49 , G01N27/327 , B01L3/00
Abstract: In one example in accordance with the present disclosure, a fluid analysis device is described. The fluid analysis device includes a chamber to receive a number of fluids. At least one fluid includes an electrochemical label with a unique electrochemical response to an applied electrical potential. A multi-electrode sensor of the fluid analysis device is disposed within the chamber and detects electrical signals within the chamber. The fluid analysis device also includes a controller coupled to the multi-electrode sensor. The controller applies an electrical potential across multiple electrodes of the multi-electrode sensor and identifies, from the electrical signal detected by the multi-electrode sensor, fluids currently in the chamber based on the unique electrochemical responses of associated electrochemical labels.
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