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    FLUID EJECTION DEVICE WITH MULTI-CHAMBER NOZZLE
    2.
    发明申请
    FLUID EJECTION DEVICE WITH MULTI-CHAMBER NOZZLE 有权

    公开(公告)号：US20210283911A1

    公开(公告)日：2021-09-16

    申请号：US16343834

    申请日：2017-02-07

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Ning Ge ,  David George ,  Lihua Zhao ,  Qingqiao Wei ,  James Abbott ,  Esteve Comas

    IPC: B41J2/14 ,  B29C64/205 ,  B29C64/295

    Abstract: In one example In accordance with the present disclosure, a fluid ejection device is described. The fluid ejection device Includes a number of nozzles to eject fluid. Each nozzle Includes multiple firing chambers to hold fluid. The multiple firing chambers are separated: by a chamber partition. Each nozzle also includes a shared nozzle orifice in a substrate through which to dispense fluid. Each nozzle also Includes multiple ejectors, at least one ejector disposed in each firing chamber, in a common channel of the nozzle, fluid from the multiple firing chambers Is mixed, A height of the common channel is defined by the substrate and the chamber partition and is less than a width of the shared nozzle orifice.

    PRINTING DEVICES
    6.
    发明申请
    PRINTING DEVICES 审中-公开

    公开(公告)号：US20180281278A1

    公开(公告)日：2018-10-04

    申请号：US15764765

    申请日：2016-01-20

    Applicant: Hewlett-Packard Development Company, L.P.

    Inventor： David George ,  Chandrakant Patel ,  Lihua Zhao ,  Michael Renne Ty Tan

    IPC: B29C64/153 ,  B29C64/393 ,  B29C64/264 ,  H01S5/183

    Abstract: In one example, a device for printing a three-dimensional object is described. The device may include at least one material application unit to deposit at least one material for a voxel of the three-dimensional object, a vertical cavity surface emitting laser array comprising a plurality of vertical cavity surface emitting lasers, the plurality of vertical cavity surface emitting lasers including a first vertical cavity surface emitting laser to operate at a first wavelength and a second vertical cavity surface emitting laser to operate at a second wavelength, and a processor to control a deposition of the at least one material for the voxel via the at least one material application unit and to control an application of electromagnetic energy via at least one of the plurality of vertical cavity surface emitting lasers to the voxel to alter at least one property of the at least one material.

    Printhead assembly with light emission devices and photon detectors
    7.
    发明授权
    Printhead assembly with light emission devices and photon detectors 有权

    公开(公告)号：US11338517B2

    公开(公告)日：2022-05-24

    申请号：US16076339

    申请日：2017-04-21

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Ning Ge ,  Steven J. Simske ,  Lihua Zhao ,  David George

    IPC: B29C64/393 ,  B29C64/112 ,  B29C64/282 ,  B29C64/209 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

    Abstract: According to examples, an apparatus may include a printhead assembly containing a housing supporting a printhead. The printhead may have nozzles that are to fire droplets of a functional agent onto a layer of build material particles along respective flight paths to form sections of a 3D object from the build material particles, an array of light emission devices to direct respective light beams in the respective flight paths, and an array of photon detectors to detect respective light beams directed from a light source of the array of light emission devices, the light emission devices and the photon detectors being supported on the housing. The apparatus may also include a controller to determine whether any of the nozzles is operating improperly based upon whether the photon detectors detected the light beams and to output an instruction regarding an improperly operating nozzle in response to a determination that the nozzle is operating improperly.

    Hybrid memory devices
    9.
    发明授权
    Hybrid memory devices 有权

    公开(公告)号：US10714179B2

    公开(公告)日：2020-07-14

    申请号：US16323072

    申请日：2016-10-07

    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

    Inventor： Ning Ge ,  Steven J Simske ,  David George

    IPC: G11C13/00 ,  G11C14/00 ,  H01L27/108 ,  H01L27/24 ,  H01L45/00

    Abstract: In some examples, a hybrid memory device includes multiple memory cells, where a given memory cell of the multiple memory cells includes a volatile memory element having a plurality of layers including electrically conductive layers and a dielectric layer between the electrically conductive layers, and a non-volatile resistive memory element to store different data states represented by respective different resistances of the non-volatile resistive memory element, the non-volatile resistive memory element having a plurality of layers including electrically conductive layers and a resistive switching layer between the electrically conductive layers of the non-volatile resistive memory element.

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