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公开(公告)号：US20160031243A1
公开(公告)日：2016-02-04
申请号：US14883362
申请日：2015-10-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Andrew L. Van Brocklin , Adam L. Ghozeil , Daryl E. Anderson
IPC: B41J29/377
CPC classification number: B41J2/04563 , B41J2/04528 , B41J2/0454 , B41J2/04555 , B41J2/04586 , B41J2/14 , B41J2/16505 , B41J2/175 , B41J2/17509 , B41J2/195 , B41J29/377 , B41J29/38 , B41J2202/08
Abstract: Fluid ejection devices and methods thereof are disclosed in the present disclosure. A method includes establishing fluid communication between an ejection chamber and a fluid supply chamber of the fluid ejection device such that the ejection chamber includes a nozzle and an ejection member to selectively eject fluid through the nozzle. The method also includes detecting at least one impedance in the fluid by a sensor unit having a sensor plate.
Abstract translation: 流体喷射装置及其方法在本公开中公开。 一种方法包括在喷射室和流体喷射装置的流体供应室之间建立流体连通，使得喷射室包括喷嘴和喷射构件，以选择性地将流体喷射通过喷嘴。 该方法还包括通过具有传感器板的传感器单元来检测流体中的至少一个阻抗。
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公开(公告)号：US10369785B2
公开(公告)日：2019-08-06
申请号：US15793778
申请日：2017-10-25
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Andrew L. Van Brocklin , Adam L. Ghozeil , Daryl E. Anderson
Abstract: An inkjet printhead device, fluid ejection device and method thereof are disclosed. The fluid ejection device includes a fluid supply chamber to store fluid, an ejection chamber including a nozzle and a corresponding ejection member to selectively eject the fluid through the nozzle, and a channel to establish fluid communication between the fluid supply chamber and the ejection chamber. The fluid ejection device also includes a pressure sensor unit having a sensor plate to output a voltage value corresponding to a cross-sectional area of an amount of fluid in the at least ejection chamber.
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公开(公告)号：US20190001695A1
公开(公告)日：2019-01-03
申请号：US16125701
申请日：2018-09-08
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Adam L. Ghozeil , Boon Bing Ng , Patrick Leonard , Raymond Connolly
CPC classification number: B41J2/17566 , B41J2/04541 , B41J2/0458 , B41J2/1404 , B41J2/14072 , B41J2/14153 , B41J2/175 , B41J2/18 , B41J2002/14467 , B41J2202/11 , B41J2202/12
Abstract: A print head has a fluid slot and a sensing chamber having a first port connected to the fluid slot and a second port. The sensing chamber contains an ink level sensor. A circulation passage extends from the fluid slot and is fluidly coupled to the second port. A fluid pump circulates fluid through the circulation passage.
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公开(公告)号：US10029464B2
公开(公告)日：2018-07-24
申请号：US15706315
申请日：2017-09-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Adam L. Ghozeil , David Maxfield , Peter James Fricke
Abstract: An example provides a fluid ejection apparatus including a fluid feed slot along a length of a print head die of the fluid ejection apparatus to supply a fluid to a plurality of drop ejectors, control circuitry adjacent to at least one side of the fluid feed slot to control ejection of drops of fluid from the plurality of drop ejectors, and a single power supply connector at an end of the print head die to supply power to the control circuitry.
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公开(公告)号：US09815282B2
公开(公告)日：2017-11-14
申请号：US15120676
申请日：2014-06-30
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Bradley D. Chung , Galen P. Cook , Michael H. Hayes , Adam L. Ghozeil , Chantelle Elizabeth Domingue , Valerie J. Marty , Anthony M. Fuller , Sterling Chaffins
IPC: B41J2/14 , B41J2/16 , B41J29/377
CPC classification number: B41J2/14129 , B41J2/1603 , B41J2/1628 , B41J2/1631 , B41J29/377
Abstract: A fluid ejection structure can include thermal resistors, a substrate, layers on the substrate, wherein said layers can include a region proximate to the resistor that has reduced field oxide.
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Patent Agency Ranking
公开(公告)号：US09776419B2
公开(公告)日：2017-10-03
申请号：US15118393
申请日：2014-03-07
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Ning Ge , Patrick Leonard , Adam L. Ghozeil
IPC: B41J2/175
CPC classification number: B41J2/17566 , B41J2/04541 , B41J2/04566 , B41J2/04571 , B41J2/14072 , B41J2/1412 , B41J2/14129 , B41J2/14153 , B41J2002/14354 , B41J2202/18
Abstract: An example provides a fluid ejection device including a fluid feed slot, a fluid chamber between a nozzle layer and a passivation layer, and a printhead-integrated sensor to sense a property of a fluid in the fluid chamber. The sensor may include a ground electrode exposed to the fluid chamber through a via in the passivation layer.
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公开(公告)号：US20160339696A1
公开(公告)日：2016-11-24
申请号：US15114967
申请日：2014-01-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Ning GE , Adam L. Ghozeil , Chaw Sing HO
CPC classification number: B41J2/1433 , B41J2/14153 , B41J2/17566 , B41J2/195 , B41J29/38 , B41J2002/14354 , B41J2202/13
Abstract: Ink property sensing on a printhead is described. In an example, a substrate for a printhead includes a cap layer having bores. Chambers are formed beneath the cap layer in fluidic communication with the bores. Fluid ejectors are disposed in at least a portion of the chambers. At least one ion-sensitive field effect transistor (ISFET) is disposed in a respective at least one of the chambers. An electrode is disposed in each of the chambers having an ISFET and capacitively coupled to said ISFET through a dielectric.
Abstract translation: 描述了在打印头上的油墨特性感测。 在一个示例中，用于打印头的基板包括具有孔的盖层。 腔室形成在帽层之下，与孔流体连通。 流体喷射器设置在腔室的至少一部分中。 至少一个离子敏感场效应晶体管（ISFET）设置在相应的至少一个室中。 电极设置在具有ISFET的每个室中，并通过电介质电容耦合到所述ISFET。
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公开(公告)号：US10343396B2
公开(公告)日：2019-07-09
申请号：US16156950
申请日：2018-10-10
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Chris Bakker , Eric Martin , Adam L. Ghozeil
Abstract: A print component includes an address line, data lines, a fire pulse line, and a plurality of primitives, each primitive corresponding to a different data line and including a plurality of activation devices each corresponding to a different address of a set of addresses. A buffer receives data packets each including address data representative of an address of the set of addresses and print data for each primitive, places the print data on the respective data line of the corresponding primitive, and directs the address data to address logic which encodes the address data onto the address line in the order of reception of the address data by the buffer via the data packets. For each primitive, the activation device corresponding to the address on the address line activates a corresponding primitive function based on the corresponding print data when a fire pulse is present on the fire pulse line.
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公开(公告)号：US10336089B2
公开(公告)日：2019-07-02
申请号：US15940954
申请日：2018-03-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Adam L. Ghozeil , Scott A. Linn , David Maxfield , Andrew Van Brocklin
Abstract: In an implementation, a printhead includes a nozzle and a fluid channel. A sensor plate is located within the fluid channel. An impedance measurement circuit is coupled to the sensor plate to measure impedance of fluid within the channel during a fluid movement event that moves fluid past the sensor plate.
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公开(公告)号：US09908332B2
公开(公告)日：2018-03-06
申请号：US15114967
申请日：2014-01-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Ning Ge , Adam L. Ghozeil , Chaw Sing Ho
CPC classification number: B41J2/1433 , B41J2/14153 , B41J2/17566 , B41J2/195 , B41J29/38 , B41J2002/14354 , B41J2202/13
Abstract: Ink property sensing on a printhead is described. In an example, a substrate for a printhead includes a cap layer having bores. Chambers are formed beneath the cap layer in fluidic communication with the bores. Fluid ejectors are disposed in at least a portion of the chambers. At least one ion-sensitive field effect transistor (ISFET) is disposed in a respective at least one of the chambers. An electrode is disposed in each of the chambers having an ISFET and capacitively coupled to said ISFET through a dielectric.
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