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    FLUID EJECTION DEVICE
    1.
    发明申请
    FLUID EJECTION DEVICE 审中-公开

    公开(公告)号：US20200031135A1

    公开(公告)日：2020-01-30

    申请号：US16337579

    申请日：2017-01-23

    申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    发明人： Tsuyoshi Yamashita ,  Alexander Govyadinov ,  Nick McGuinness ,  Erik D Torniainen ,  David P Markel

    IPC分类号： B41J2/18

    摘要： A fluid ejection device includes a fluid slot, two laterally adjacent fluid ejection chambers each communicated with the fluid slot and having a drop ejecting element therein, and a fluid circulation path communicated with each of the two laterally adjacent fluid ejection chambers and having a fluid circulating element therein, with the two laterally adjacent fluid ejection chambers to concurrently eject drops of fluid therefrom such that the drops of fluid are to coalesce during flight.

    Microfluidic network
    3.
    发明授权
    Microfluidic network 有权

    公开(公告)号：US11331669B2

    公开(公告)日：2022-05-17

    申请号：US16477772

    申请日：2017-02-15

    申请人： Hewlett-Packard Development Company, L.P.

    发明人： Pavel Kornilovich ,  Alexander Govyadinov ,  Nick McGuinness

    IPC分类号： B01L3/00

    摘要： An apparatus may include a first microfluidic valve coupled between a first reservoir and a fluid channel. The first microfluidic valve may include a fluid agitator to break a meniscus formed at an air-fluid interface and release fluid from the first reservoir into the fluid channel in response to an electrical signal. The apparatus may also include a second microfluidic valve coupled between a second reservoir and the fluid channel. Fluid from the first reservoir and fluid from the second reservoir mix in the fluid channel.

    Fluid ejection device
    5.
    发明授权
    Fluid ejection device 有权

    公开(公告)号：US11440331B2

    公开(公告)日：2022-09-13

    申请号：US17068443

    申请日：2020-10-12

    申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    发明人： Nick McGuinness ,  Lawrence H White ,  Paul A Richards

    IPC分类号： B41J2/19 ,  B41J2/175 ,  B41J2/14 ,  B41J2/18

    摘要： A fluid ejection system may include a media transport assembly and a printhead assembly having a fluid ejection device opposite the media transport assembly. The fluid ejection device may include a drop ejecting element and a fluid ejection chamber containing the drop ejection element. The fluid ejection chamber has an inlet and an outlet for fluid circulation through the fluid ejection chamber across the drop ejecting element. A particle tolerant architecture is between the inlet and the drop ejecting element.

    Fluid ejection device
    7.
    发明授权
    Fluid ejection device 有权

    公开(公告)号：US10112407B2

    公开(公告)日：2018-10-30

    申请号：US15541963

    申请日：2015-01-29

    申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    发明人： Nick McGuinness ,  Lawrence H White ,  Paul A Richards

    IPC分类号： B41J2/19 ,  B41J2/175 ,  B41J2/14 ,  B41J2/18

    摘要： A fluid ejection device includes a fluid slot, a fluid ejection chamber communicated with the fluid slot, a drop ejecting element within the fluid ejection chamber, a fluid circulation channel communicated at a first end with the fluid slot and communicated at a second end with the fluid ejection chamber, a fluid circulating element within the fluid circulation channel, and a particle tolerant architecture within the fluid circulation channel at the second end.

    Microfluidic sensing
    9.
    发明授权
    Microfluidic sensing 有权

    公开(公告)号：US11366051B2

    公开(公告)日：2022-06-21

    申请号：US15546342

    申请日：2015-01-30

    申请人： Hewlett-Packard Development Company, L.P.

    发明人： Jeremy Sells ,  Nick McGuinness ,  Chantelle Domingue ,  Manish Giri

    IPC分类号： G01N15/10 ,  B01L3/00

    摘要： A device including a microfluidic channel structure formed on a substrate and including a first channel and a fluid actuator within the microfluidic channel structure. A sense region within the first channel is to receive a fluid flow of target biologic particles for counting in a single file pattern, with the sense region having a volume on a same order of magnitude as a volume of a single one of the target biologic particles.