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公开(公告)号：US10415086B2
公开(公告)日：2019-09-17
申请号：US15955364
申请日：2018-04-17
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Pavel Kornilovich , Erik D. Tornianinen , Alexander Govyadinov , David P. Markel
Abstract: In one embodiment, a polymerase chain reaction (PCR) system includes a mixture chamber, a denature chamber, an annealing chamber, an extension chamber, and a product chamber, that are fluidically coupled to one another through a plurality of microfluidic channels. An inertial pump is associated with each microfluidic channel, and each inertial pump includes a fluid actuator integrated asymmetrically within its associated microfluidic channel. The fluid actuators are capable of selective activation to circulate fluid between the chambers in a controlled cycle.
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公开(公告)号：US20190168512A1
公开(公告)日：2019-06-06
申请号：US16270664
申请日：2019-02-08
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Tsuyoshi Yamashita , Erik D. Torniainen
Abstract: A fluid ejection device includes a fluid slot, a first fluid ejection chamber communicated with the fluid slot and including a first drop ejecting element, a second fluid ejection chamber including a second drop ejecting element, and a fluid circulation path including a first portion communicated with the fluid slot and the second fluid ejection chamber, and a second portion communicated with the first fluid ejection chamber and the second fluid ejection chamber, with the fluid circulation path including a fluid circulating element within the first portion.
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公开(公告)号：US10308020B2
公开(公告)日：2019-06-04
申请号：US15747835
申请日：2015-10-27
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Alexander Govyadinov , Tsuyoshi Yamashita , Erik D. Torniainen , Nicholas McGuinness , David P. Markel
IPC: B41J2/14
Abstract: A fluid ejection device includes a fluid slot, a first fluid ejection chamber communicated with the fluid slot and including a first drop ejecting element, a second fluid ejection chamber communicated with the fluid slot and including a second drop ejecting element, a fluid circulation path communicated with the first fluid ejection chamber and the second fluid ejection chamber, and a fluid circulating element within the fluid circulation path.
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公开(公告)号：US10286366B2
公开(公告)日：2019-05-14
申请号：US14407005
申请日：2012-09-24
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Alexander Govyadinov , Erik D. Torniainen , David P. Markel , Pavel Kornilovich
Abstract: In one embodiment, a microfluidic mixing device includes a mixing channel, a fluid inlet chamber to pass fluids into the mixing channel, an axis-asymmetric mixing actuator integrated within the channel to cause fluid displacements that mix the fluids as they flow through the channel, and an outlet chamber to receive the mixed fluids.
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公开(公告)号：US20180043362A1
公开(公告)日：2018-02-15
申请号：US15546882
申请日：2015-04-30
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Anita Rogacs , Alexander Govyadinov
IPC: B01L3/00
CPC classification number: B01L3/502761 , B01L3/0268 , B01L3/502753 , B01L2200/0652 , B01L2300/0809 , B01L2300/0816 , B01L2300/0864 , B01L2400/0421 , B01L2400/0442 , G01N27/44739 , G01N30/80
Abstract: A fluid exit passage is at a location along a microfluidic channel. A fluid displacement device is proximate the location along the microfluidic channel. A constituent locator distinguishes a target constituent in a fluid within the microfluidic channel from remaining non-target constituents and locate the target constituent proximate the fluid exit passage. A controller selectively actuates the fluid displacement device when the target constituent is proximate the fluid exit passage to discharge the target constituent from the microfluidic channel through the fluid exit passage.
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Patent Agency Ranking
公开(公告)号：US09701116B2
公开(公告)日：2017-07-11
申请号：US15262248
申请日：2016-09-12
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Andrew L. Van Brocklin , Eric T. Martin , Alexander Govyadinov , David Maxfield
IPC: B41J2/045 , B41J2/14 , B41J29/393
CPC classification number: B41J2/14153 , B41J2/0451 , B41J2/04555 , B41J2/0458 , B41J2/04586 , B41J29/393 , B41J2002/14354
Abstract: A method for determining an issue in an inkjet nozzle with impedance measurements, includes taking a first impedance measurement to detect a drive bubble with an impedance sensor; and taking a second impedance measurement to detect said drive bubble with said impedance sensor after said first impedance measurement.
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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：US20150190767A1
公开(公告)日：2015-07-09
申请号：US14407005
申请日：2012-09-24
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Alexander Govyadinov , Erik D. Torniainen , David P. Markel , Pavel Kornilovich
CPC classification number: B01F5/12 , B01F11/0071 , B01F13/0059 , B01F15/00493 , B01L3/50273 , B01L2300/0867 , B01L2300/0883 , B01L2400/0433 , B01L2400/0442 , B01L2400/0487
Abstract: In one embodiment, a microfluidic mixing device includes a mixing channel, a fluid inlet chamber to pass fluids into the mixing channel, an axis-asymmetric mixing actuator integrated within the channel to cause fluid displacements that mix the fluids as they flow through the channel, and an outlet chamber to receive the mixed fluids.
Abstract translation: 在一个实施例中，微流体混合装置包括混合通道，用于将流体输送到混合通道中的流体入口室，集成在通道内的轴对称混合致动器，以引起当流体流过通道时混合流体的流体位移， 以及用于接收混合流体的出口室。
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公开(公告)号：US08939542B2
公开(公告)日：2015-01-27
申请号：US13925517
申请日：2013-06-24
Applicant: Hewlett-Packard Development Company, L.P.
Inventor： Alexander Govyadinov , Clayton L. Holstun
IPC: B41J29/393 , B41J2/045
CPC classification number: B41J2/0456 , B41J2/0451 , B41J2/04561 , B41J2/0458 , B41J2/04581 , B41J2/2142
Abstract: A method of detecting a defective nozzle within a nozzle array, may comprise grouping each nozzle with a number of other nozzles within the nozzle array, measuring fluid output from each group of nozzles with a fluid detector, individually regrouping each nozzle within a group of nozzles whose fluid output is detected as not being commensurate with the amount of fluid that should be ejected from that group with a number of known non-defective nozzles to form a number of subsequent groups, and measuring fluid output from the subsequent groups of nozzles to determine which nozzle among the subsequent groups of nozzles is defective.
Abstract translation: 一种检测喷嘴阵列内的有缺陷的喷嘴的方法可以包括将每个喷嘴与喷嘴阵列内的多个其它喷嘴分组，用流体检测器测量来自每组喷嘴的流体输出，将一组喷嘴中的每个喷嘴分别重组 其流体输出被检测为不与应该用许多已知的无缺陷喷嘴从该组喷出的流体的量相匹配以形成多个随后的组，并且测量后续喷嘴组的流体输出以确定 后续喷嘴组中的哪个喷嘴有缺陷。
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公开(公告)号：US12202197B2
公开(公告)日：2025-01-21
申请号：US16735211
申请日：2020-01-06
Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Inventor： Krzysztof Nauka , Sivapackia Ganapathiappan , Lihua Zhao , Howard S. Tom , Yan Zhao , Hou T. Ng , James Elmer Abbott, Jr. , Alexander Govyadinov , Vladek Kasperchik
IPC: B29C64/264 , B29C64/165 , B29C64/393 , B33Y10/00 , B33Y50/02
Abstract: In one example, a non-transitory processor readable medium having instructions thereon that when executed cause an additive manufacturing machine to expose build material to a light source emitting monochromatic light within a band of wavelengths that includes a peak light absorption of a liquid coalescing agent to be dispensed on to the build material.
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