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公开(公告)号：US20210114032A1
公开(公告)日：2021-04-22
申请号：US17044404
申请日：2018-04-23
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Garrett E. Clark , Si-lam Choy , Jacob Lum , Craig Olbrich , Jeremy Sells , Tsuyoshi Yamashita
IPC: B01L3/00
Abstract: A fluidic die may include a at least one actuator, and fluid flow architecture to flow a first fluid through at least one fluidic channel, and flow a second fluid through the at least one fluidic channel to form a laminar flow between the first fluid and the actuator. The at least one actuator forms a drive bubble from the second fluid to cause the first fluid to be ejected from the fluidic die.
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公开(公告)号：US10946649B2
公开(公告)日：2021-03-16
申请号：US16067304
申请日：2016-04-29
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Alexander Govyadinov , Craig Olbrich
Abstract: In an example implementation, a method of printing with an emulsion, includes generating an emulsion of non-water based fluid and water based fluid on a printhead, and ejecting the emulsion through a printhead nozzle.
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公开(公告)号：US20160368266A1
公开(公告)日：2016-12-22
申请号：US15252433
申请日：2016-08-31
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Craig Olbrich , Brian M. Taff
IPC: B41J2/14
CPC classification number: B41J2/17596 , B41J2/1404 , B41J2/14145 , B41J2/1433 , B41J2/15 , B41J2/175 , B41J2002/14387 , B41J2002/14467 , B41J2202/12
Abstract: In an embodiment, a fluid ejection device includes a die substrate having first and second fluid slots along opposite substrate sides and separated by a substrate central region. First and second internal columns of closed chambers are associated with the first and second slots, respectively, and the internal columns are separated by the central region. Fluidic channels extending across the central region fluidically couple closed chambers from the first internal column with closed chambers from the second internal column. Pump actuators in each closed chamber pump fluid through the channels from slot to slot.
Abstract translation: 在一个实施例中，流体喷射装置包括具有沿着相对基板侧并且被基板中心区分开的第一和第二流体槽的管芯基板。 封闭腔室的第一和第二内部柱分别与第一和第二狭槽相关联，并且内部柱由中心区域分开。 延伸穿过中心区域的流体通道使来自第一内部柱的封闭腔室与来自第二内部柱的闭合腔室流体耦合。 每个封闭腔室中的泵执行器通过通道从槽到槽泵送流体。
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公开(公告)号：US20220168773A1
公开(公告)日：2022-06-02
申请号：US17672442
申请日：2022-02-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Roberto A. Pugliese , Jeffrey A. Nielsen , Christie Dudenhoefer , Craig Olbrich , Debora J. Thomas
Abstract: An alignment system, in an example, may include a substrate comprising at least one nanowell, at least one fluid ejection device comprising at least one die, the at least one die comprising as least one nozzle, and an alignment device to align the at least one nozzle to the at least one nanowell.
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公开(公告)号：US20180186150A1
公开(公告)日：2018-07-05
申请号：US15896292
申请日：2018-02-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Jeffrey A. Nielsen , Craig Olbrich , Richard W. Seaver , David R. Otis, JR.
CPC classification number: B41J2/1404 , B41J2/14 , B41J2/14201 , B41J2/16 , B41J2/1603 , B41J2/1607 , B41J2/1626 , B41J2/1631 , B41J2/1639 , B41J2/1645 , B41J2202/11
Abstract: An inkjet material dispenser system includes a printhead member. According to one exemplary embodiment, the printhead member includes at least one drop ejector including an insulating stack layer and a top orifice surface defining an orifice, wherein a ratio of a diameter of the orifice to a height of the insulating stack layer (O/L ratio) is at least 1.0.
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Patent Agency Ranking
公开(公告)号：US09969177B2
公开(公告)日：2018-05-15
申请号：US15433827
申请日：2017-02-15
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Craig Olbrich , Brian M. Taff
CPC classification number: B41J2/17596 , B41J2/1404 , B41J2/14145 , B41J2/1433 , B41J2/15 , B41J2/175 , B41J2002/14387 , B41J2002/14467 , B41J2202/12
Abstract: In an embodiment, a fluid ejection device includes a die substrate having first and second fluid slots along opposite substrate sides and separated by a substrate central region. First and second internal columns of closed chambers are associated with the first and second slots, respectively, and the internal columns are separated by the central region. Fluidic channels extending across the central region fluidically couple closed chambers from the first internal column with closed chambers from the second internal column. Pump actuators in each closed chamber pump fluid through the channels from slot to slot.
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公开(公告)号：US09457584B2
公开(公告)日：2016-10-04
申请号：US14958022
申请日：2015-12-03
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Craig Olbrich , Brian M. Taff
CPC classification number: B41J2/17596 , B41J2/1404 , B41J2/14145 , B41J2/1433 , B41J2/15 , B41J2/175 , B41J2002/14387 , B41J2002/14467 , B41J2202/12
Abstract: In an embodiment, a fluid ejection device includes a die substrate having first and second fluid slots along opposite substrate sides and separated by a substrate central region. First and second internal columns of closed chambers are associated with the first and second slots, respectively, and the internal columns are separated by the central region. Fluidic channels extending across the central region fluidically couple closed chambers from the first internal column with closed chambers from the second internal column. Pump actuators in each closed chamber pump fluid through the channels from slot to slot.
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公开(公告)号：US20220332125A1
公开(公告)日：2022-10-20
申请号：US17765011
申请日：2019-10-17
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Craig Olbrich
Abstract: According to examples, an apparatus may include a pump generator having a first resistance level and being positioned within a fluid circulation channel and a drop generator having a second resistance level and being positioned within a fluid ejection chamber. The apparatus may also include a control line connected to both the pump generator and the drop generator and a controller. The controller may output, at a first time, a first signal having a first pulse duration to the control line, the first signal to cause fluid in the fluid circulation channel to reach or exceed a first temperature and fluid in the fluid ejection chamber to remain below the first temperature and may output, at a second time, a second signal having a second pulse duration, the second signal to cause fluid in the fluid circulation channel and the fluid ejection chamber to reach or exceed the first temperature.
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公开(公告)号：US11441701B2
公开(公告)日：2022-09-13
申请号：US16621470
申请日：2017-07-14
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Craig Olbrich , Alexander N. Govyadinov
IPC: F16K99/00
Abstract: A microfluidic valve may include a firing chamber having an orifice, a first portion of a liquid conduit connected to the firing chamber at a first port, a second portion of the liquid conduit connected to the firing chamber at a second port and a thermal resistor. The thermal resistor is to form a bubble within the firing chamber to expel liquid from the firing chamber through the orifice such that a first meniscus forms across the first port and a second meniscus forms across the second port to interrupt liquid flow between the first portion and the second portion of the liquid conduit.
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公开(公告)号：US20210011043A1
公开(公告)日：2021-01-14
申请号：US16500362
申请日：2017-07-18
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Suzanne Mirashrafi , Christie Dudenhoefer , Heather B. Louderback , Craig Olbrich , Dennis R. Esterberg , Jeffrey A. Nielsen
Abstract: A reagent substrate may include a reagent sample deposition area on which a sample of a reagent is deposited, and a number of diagnostic regions on which a diagnostic sample of the reagent is deposited for verification of deposition of the diagnostic sample. A reagent dispensing system may include a conveyor surface to convey a number of substrates, at least one reagent module located in-line with respect to the conveyor surface where the reagent module includes at least one reagent dispensing device to dispense a reagent on the substrates, and at least one optical sensor to verify the dispensing of the reagent at a number of diagnostic regions of the substrate.
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