公开(公告)号：US20180290458A1

公开(公告)日：2018-10-11

申请号：US15570634

申请日：2015-07-14

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

Inventor： Alexander Govyadinov ,  Ron Burns ,  Erik D. Torniainen ,  Galen P. Cook ,  David P. Markel ,  Garrard Hume ,  Chris Bakker

IPC: B41J2/175 ,  B41J2/18 ,  B41J2/14

Abstract: A fluid recirculation channel for dispensing a plurality of fluid drop weights includes a number of sub-channels. The sub-channels include at least one pump channel, and a plurality of drop generator channels fluidically coupled to the at least one pump channel. The fluid recirculation channel further includes a number of pump generators incorporated into the at least one pump channel, a number of drop generators incorporated into drop generator channels, and a plurality of nozzles defined within the drop generator channels, the nozzles being at least as numerous as the number of drop generators.

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.

公开(公告)号：US11345162B2

公开(公告)日：2022-05-31

申请号：US15570634

申请日：2015-07-14

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

Inventor： Alexander Govyadinov ,  Ron Burns ,  Erik D. Torniainen ,  Galen P. Cook ,  David P. Markel ,  Garrard Hume ,  Chris Bakker

IPC: B41J2/175 ,  B41J29/02 ,  B41J2/14 ,  B41J2/18

Abstract: A fluid recirculation channel for dispensing a plurality of fluid drop weights includes a number of sub-channels. The sub-channels include at least one pump channel, and a plurality of drop generator channels fluidically coupled to the at least one pump channel. The fluid recirculation channel further includes a number of pump generators incorporated into the at least one pump channel, a number of drop generators incorporated into drop generator channels, and a plurality of nozzles defined within the drop generator channels, the nozzles being at least as numerous as the number of drop generators.

公开(公告)号：US20150266293A1

公开(公告)日：2015-09-24

申请号：US14397720

申请日：2012-10-31

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

Inventor： Galen P. Cook ,  Bradley D. Chung ,  Anthony M. Fuller

IPC: B41J2/14 ,  F22B1/28 ,  B41J2/16

CPC classification number: B41J2/14129 ,  B41J2/1601 ,  B41J2/1603 ,  B41J2/1626 ,  B41J2/164 ,  B41J2/1646 ,  F22B1/284 ,  Y10T29/49083 ,  Y10T29/49401

Abstract: An exemplary embodiment of the present invention provides for a fluid ejection device. The fluid ejection device includes a substrate, a conductive layer, a resistive layer, and at least one upper layer. The conductive layer is disposed on the substrate and an outer perimeter and an inner region thinner than the outer perimeter. The outer perimeter includes conductive elements spaced apart from one another. The resistive layer includes an outer resistive portion overlying the conductive elements and a central resistive portion lying on top of a raised bridge of the substrate, wherein the width of the raised bridge is substantially greater than the width of the central resistive portion. The at least one upper layer defines a boundary of a fluid chamber, and the boundary is aligned vertically above a border of the central resistive portion.

Abstract translation: 本发明的示例性实施例提供了一种流体喷射装置。 流体喷射装置包括基板，导电层，电阻层和至少一个上层。 导电层设置在基板上，外周和比外周更薄的内区。 外周边包括彼此间隔开的导电元件。 电阻层包括覆盖导电元件的外部电阻部分和位于衬底的凸起桥的顶部上的中心电阻部分，其中凸起电桥的宽度基本上大于中央电阻部分的宽度。 所述至少一个上层限定流体室的边界，并且所述边界垂直地对准所述中心电阻部分的边界。

公开(公告)号：US20170106651A1

公开(公告)日：2017-04-20

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 ,  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.

公开(公告)号：US09289987B2

公开(公告)日：2016-03-22

申请号：US14397720

申请日：2012-10-31

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

Inventor： Galen P. Cook ,  Bradley D. Chung ,  Anthony M. Fuller

IPC: B41J2/05 ,  B41J2/14 ,  B41J2/16 ,  F22B1/28

CPC classification number: B41J2/14129 ,  B41J2/1601 ,  B41J2/1603 ,  B41J2/1626 ,  B41J2/164 ,  B41J2/1646 ,  F22B1/284 ,  Y10T29/49083 ,  Y10T29/49401

Abstract: An exemplary embodiment of the present invention provides for a fluid ejection device. The fluid ejection device includes a substrate, a conductive layer, a resistive layer, and at least one upper layer. The conductive layer is disposed on the substrate and an outer perimeter and an inner region thinner than the outer perimeter. The outer perimeter includes conductive elements spaced apart from one another. The resistive layer includes an outer resistive portion overlying the conductive elements and a central resistive portion lying on top of a raised bridge of the substrate, wherein the width of the raised bridge is substantially greater than the width of the central resistive portion. The at least one upper layer defines a boundary of a fluid chamber, and the boundary is aligned vertically above a border of the central resistive portion.

Abstract translation: 本发明的示例性实施例提供了一种流体喷射装置。 流体喷射装置包括基板，导电层，电阻层和至少一个上层。 导电层设置在基板上，外周和比外周更薄的内区。 外周边包括彼此间隔开的导电元件。 电阻层包括覆盖导电元件的外部电阻部分和位于衬底的凸起桥的顶部上的中心电阻部分，其中凸起电桥的宽度基本上大于中央电阻部分的宽度。 所述至少一个上层限定流体室的边界，并且所述边界垂直地对准所述中心电阻部分的边界。