公开(公告)号：US20220203696A1

公开(公告)日：2022-06-30

申请号：US17699050

申请日：2022-03-18

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

Inventor： Si-Iam Choy ,  Michael W. Cumbie ,  Chien-Hua Chen

IPC: B41J2/18 ,  B41J2/14

Abstract: A fluid circulation and ejection system may include a microfluidic die, a single orifice fluid ejector having a drive chamber in the microfluidic die and a pressurized fluid source remote from the microfluidic die to create a pressure gradient across the drive chamber to circulate fluid across the drive chamber.

公开(公告)号：US11326200B2

公开(公告)日：2022-05-10

申请号：US16094360

申请日：2016-07-22

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

Inventor： Michael W. Cumbie ,  Devin Alexander Mourey ,  Si-Iam Choy

IPC: C12Q1/6806 ,  B01L3/02 ,  B01L3/00 ,  G01N1/28 ,  C12Q1/68 ,  B01J19/00 ,  C12Q1/686

Abstract: A method of preparing a sample may include depositing an aqueous solution comprising copies of a primer into a layer of hydrophobic liquid on a substrate with a thermal inkjet device. A sample may include: a substrate; a layer of hydrophobic liquid on the substrate, the layer of hydrophobic liquid comprising a plurality of droplets of aqueous solution distributed in the layer, wherein the plurality of droplets contain: primers; a polymerase enzyme; deoxynucleotide triphosphates (dNTPs); and a target sequence for replication; and a cover, the cover contacting and covering the layer of hydrophobic liquid.

公开(公告)号：US20210291547A1

公开(公告)日：2021-09-23

申请号：US17340570

申请日：2021-06-07

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

Inventor： Si-Iam Choy ,  Michael W. Cumbie ,  Chien-Hua Chen ,  Jeffrey R. Pollard

IPC: B41J2/18

Abstract: In one example in accordance with the present disclosure, a fluidic ejection die is described. The die includes an array of nozzles. Each nozzle includes an ejection chamber and an opening. A fluid actuator is disposed within the ejection chamber. The fluidic ejection die also includes an array of passages, formed in a substrate, to deliver fluid to and from the ejection chamber. The fluidic ejection die also includes an array of enclosed cross-channels. Each enclosed cross-channel of the array of enclosed cross-channels is fluidly connected to a respective plurality of passages of the array of passages.

公开(公告)号：US11654680B2

公开(公告)日：2023-05-23

申请号：US17340570

申请日：2021-06-07

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

Inventor： Si-Iam Choy ,  Michael W. Cumbie ,  Chien-Hua Chen ,  Jeffrey R. Pollard

IPC: B41J2/14 ,  B41J2/16 ,  B41J2/175 ,  B41J2/21

CPC classification number: B41J2/14145 ,  B41J2/14032 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/17503 ,  B41J2/21 ,  B41J2202/12

Abstract: In one example in accordance with the present disclosure, a fluidic ejection die is described. The die includes an array of nozzles. Each nozzle includes an ejection chamber and an opening. A fluid actuator is disposed within the ejection chamber. The fluidic ejection die also includes an array of passages, formed in a substrate, to deliver fluid to and from the ejection chamber. The fluidic ejection die also includes an array of enclosed cross-channels. Each enclosed cross-channel of the array of enclosed cross-channels is fluidly connected to a respective plurality of passages of the array of passages.

公开(公告)号：US11155086B2

公开(公告)日：2021-10-26

申请号：US16630020

申请日：2017-07-31

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

Inventor： Si-Iam Choy ,  Michael W Cumbie ,  Chien-Hua Chen ,  Jeffrey R Pollard

IPC: B41J2/14 ,  B41J2/16

Abstract: In one example in accordance with the present disclosure, a fluidic ejection device is described. The device includes a fluidic ejection die embedded in a moldable material. The die includes an array of nozzles. Each nozzle includes an ejection chamber and an opening. A fluid actuator is disposed within the ejection chamber. The fluidic ejection die also includes an array of passages, formed in a substrate, to deliver fluid to and from the ejection chamber. The fluidic ejection die also includes an array of enclosed cross-channels. Each enclosed cross-channel of the array of enclosed cross-channels is fluidly connected to a respective plurality of passages of the array of passages. The device also includes the moldable material which includes supply slots to deliver fluid to and from the fluidic ejection die. A carrier substrate of the device supports the fluidic ejection die and moldable material.