公开(公告)号：US20170361505A1

公开(公告)日：2017-12-21

申请号：US15513965

申请日：2014-09-26

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

Inventor： James Elmer Abbott, JR. ,  Alexander Govyadinov ,  Vladek Kasperchik ,  Krzysztof Nauka ,  Sivapackia Ganapathiappan ,  Lihua Zhao ,  Howard S. Tom, JR. ,  Yan Zhao ,  Hou T. Ng

IPC: B29C35/08 ,  B29C67/00 ,  B29C64/165 ,  B29C64/205 ,  B29C64/386 ,  B33Y10/00

CPC classification number: B29C35/0805 ,  B29C64/165 ,  B29C64/205 ,  B29C64/291 ,  B29C64/386 ,  B29C67/0007 ,  B29C2035/0838 ,  B33Y10/00 ,  B33Y30/00

Abstract: In one example, a lighting device for an additive manufacturing machine includes an array of light sources each to emit monochromatic light within a band of wavelengths that includes a peak light absorption of a liquid coalescing agent to be dispensed on to a build material.

公开(公告)号：US20250026944A1

公开(公告)日：2025-01-23

申请号：US18907174

申请日：2024-10-04

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

Inventor： Krzysztof Nauka ,  Vladek Kasperchik

IPC: C09D11/322 ,  B29C64/291 ,  B29K77/00 ,  B29K105/00 ,  B33Y30/00 ,  B33Y70/00 ,  C01G23/08 ,  C09D11/037 ,  C09D11/102

Abstract: This disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and systems for three-dimensional printing. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and a detailing agent. The fusing agent can include water and metal oxide nanoparticles dispersed therein. The metal oxide nanoparticles can be selected from titanium dioxide, zinc oxide, cerium oxide, indium tin oxide, or a combination thereof. The metal oxide nanoparticles can have an average particle size from about 2 nm to about 500 nm. The detailing agent can include a detailing compound.

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.

公开(公告)号：US12042986B2

公开(公告)日：2024-07-23

申请号：US17891453

申请日：2022-08-19

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

Inventor： Sterling Chaffins ,  Cassady Sparks Roop ,  Kevin P. Dekam ,  Vladek Kasperchik ,  Ali Emamjomeh ,  Johnathon Holroyd ,  Stephen G. Rudisill ,  Alexey S. Kabalnov

IPC: B29C64/00 ,  B29C64/10 ,  B29C64/153 ,  B29C64/176 ,  B29C64/182 ,  B29C64/20 ,  B29C64/205 ,  B29C64/227 ,  B29C64/245 ,  B29C64/25 ,  B29C64/255 ,  B29C64/30 ,  B29C64/307 ,  B29C64/336 ,  B29C64/40 ,  B29C70/88 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/10 ,  B33Y40/20 ,  B33Y50/00 ,  B33Y70/10 ,  B33Y80/00 ,  B33Y99/00 ,  C08K3/08 ,  C08K3/22 ,  C08L67/04 ,  C09D11/322 ,  C09D11/40 ,  C09D11/52 ,  B29K505/08 ,  B33Y10/00 ,  B33Y70/00 ,  C08L77/02

CPC classification number: B29C64/153 ,  B29C64/00 ,  B29C64/10 ,  B29C64/176 ,  B29C64/182 ,  B29C64/20 ,  B29C64/205 ,  B29C64/227 ,  B29C64/245 ,  B29C64/25 ,  B29C64/255 ,  B29C64/30 ,  B29C64/307 ,  B29C64/336 ,  B29C64/40 ,  B29C70/882 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y40/10 ,  B33Y40/20 ,  B33Y50/00 ,  B33Y70/10 ,  B33Y80/00 ,  B33Y99/00 ,  C08K3/08 ,  C08K3/22 ,  C08L67/04 ,  C09D11/322 ,  C09D11/40 ,  C09D11/52 ,  B29K2505/08 ,  B33Y10/00 ,  B33Y70/00 ,  C08K2003/0806 ,  C08K2003/0831 ,  C08K2003/085 ,  C08K2003/2258 ,  C08K2201/005 ,  C08K2201/011 ,  C08L77/02 ,  C08K3/22 ,  C08L77/02 ,  C08K3/08 ,  C08L77/02

Abstract: The present disclosure is drawn to 3-dimensional printed parts that can include a conductive composite portion and an insulating portion. The conductive composite portion can include a matrix of fused thermoplastic polymer particles interlocked with a matrix of sintered elemental transition metal particles. The insulating portion can include a matrix of fused thermoplastic polymer particles that are continuous with the matrix of fused thermoplastic polymer particles in the conductive composite portion. The insulating portion can be substantially free of sintered elemental transition metal particles and can include transition metal oxide bronze particles.

公开(公告)号：US12042858B2

公开(公告)日：2024-07-23

申请号：US17054556

申请日：2019-03-15

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

Inventor： Krzysztof Nauka ,  Vladek Kasperchik ,  Mohammed S. Shaarawi

IPC: B22F1/0545 ,  B22F1/107 ,  B22F10/10 ,  B22F10/14 ,  B22F10/28 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y70/10

CPC classification number: B22F1/0545 ,  B22F1/107 ,  B22F10/10 ,  B22F10/14 ,  B22F10/28 ,  B33Y70/00 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10 ,  B22F2999/00 ,  B22F10/14 ,  B22F12/55 ,  B22F1/0545 ,  B22F1/107

Abstract: Described herein are kits, methods, and systems for printing metal three-dimensional objects. In an example, described is a multi-fluid kit for three-dimensional printing comprising: a first fluid comprising a first liquid vehicle comprising metal or metal precursor particles; and a second fluid comprising a second liquid vehicle comprising latex polymer particles dispersed therein, wherein the latex polymer particles have an average particle size of from about 10 nm to about 300 nm, and wherein the metal or metal precursor particles comprise metal nanoparticles, metal oxide nanoparticles, metal oxide nanoparticles and a reducing agent, or combinations thereof.

公开(公告)号：US12005499B2

公开(公告)日：2024-06-11

申请号：US17637644

申请日：2019-10-15

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

Inventor： Vladek Kasperchik ,  Mohammed S. Shaarawi ,  Mackensie C. Smith

IPC: B22F10/14 ,  B22F10/30 ,  B22F10/64 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00

CPC classification number: B22F10/14 ,  B22F10/30 ,  B22F10/64 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y80/00 ,  B22F2203/11 ,  B22F2304/10

Abstract: A three-dimensional printing system can include a particulate build material including metal particles. The three-dimensional printing system can include a binding agent applicator fluidly coupled or coupleable to a binding agent. The three-dimensional printing system can include a suppression agent applicator fluidly coupled or coupleable to a melting point suppression agent, the melting point suppression agent including a dispersion of melting point suppression particles. The three-dimensional printing system can include a hardware controller to generate a command to direct the binding agent applicator to iteratively apply the binding agent to the particulate build material to form individually patterned object layers of a green body object, and direct the suppression agent applicator to iteratively apply the melting point suppression agent to a discrete location of the individually patterned object layers. The discrete location can include a discrete surface region of the green body object.

公开(公告)号：US11987006B2

公开(公告)日：2024-05-21

申请号：US17417745

申请日：2019-07-19

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

Inventor： Daniel Mosher ,  Jennifer Wu ,  Vladek Kasperchik ,  David A. Champion

IPC: B29C64/393 ,  B33Y50/02 ,  G05B19/4099 ,  B29C64/153 ,  B29C64/165

CPC classification number: B29C64/393 ,  B33Y50/02 ,  G05B19/4099 ,  B29C64/153 ,  B29C64/165

Abstract: According to examples, an apparatus may include a processor and a memory on which are stored machine-readable instructions that when executed by the processor, cause the processor to determine physical characteristics of a build layer of build material particles. The instructions may also cause the processor to determine an adjustment to forming data based on the determined physical characteristics, the forming data to be used informing a subsequent build layer. The instructions may further cause the processor to apply the determined adjustment to the forming data for use in forming the subsequent build layer, in which portions of a three-dimensional (3D) object are to be formed in the build layer and the subsequent build layer.

公开(公告)号：US11760022B2

公开(公告)日：2023-09-19

申请号：US17627545

申请日：2019-10-09

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

Inventor： Pablo Antonio Murciego Rodriguez ,  Vladek Kasperchik ,  Esteve Comas Cespedes ,  Alexey Kabalnov

IPC: B29C64/35 ,  B33Y50/02 ,  B33Y70/00 ,  B29C64/393 ,  B33Y40/20

CPC classification number: B29C64/35 ,  B29C64/393 ,  B33Y40/20 ,  B33Y50/02 ,  B33Y70/00

Abstract: In one example a system is for post-processing a three-dimensional (3D) object generated in an additive manufacturing process in which an identifiable agent is applied to a portion of a build material to form a portion of the 3D object. The system comprises an identification unit and a sensor. The identification unit is to cause the identifiable agent to become distinguishable to thereby cause the portion of the 3D object, corresponding to the portion of build material to which the identifiable agent was applied, to be distinguishable from any build material remnant disposed on the 3D object and to which no identifiable agent was applied. The sensor is to distinguish the build material remnant from the portion of the 3D object.

公开(公告)号：US11753703B2

公开(公告)日：2023-09-12

申请号：US17047467

申请日：2018-10-25

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

Inventor： Vladek Kasperchik ,  Mohammed S. Shaarawi ,  James McKinnell

IPC: B33Y10/00 ,  C08K3/11 ,  B33Y70/10 ,  B22F10/14 ,  B22F3/10 ,  B22F1/05 ,  B22F1/10 ,  B22F1/145 ,  B22F1/14 ,  B22F1/052 ,  C22C1/05 ,  B33Y40/20 ,  C08K3/04

CPC classification number: C22C1/05 ,  B22F1/05 ,  B22F1/052 ,  B22F1/10 ,  B22F1/14 ,  B22F1/147 ,  B22F3/1007 ,  B22F3/1021 ,  B22F10/14 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/10 ,  C08K3/04 ,  C08K3/11 ,  B22F2301/35 ,  B22F2302/40 ,  B22F2304/054 ,  B22F2304/056 ,  B22F2304/10 ,  B22F2998/10 ,  B22F1/10 ,  B22F10/14 ,  B22F3/1021 ,  B22F2201/013 ,  B22F2201/03

Abstract: A three-dimensional printing kit can include a binder fluid and a particulate build material. The particulate build material can include metal particles in an amount from about 95 wt % to about 99.995 wt % and carbon black particles in an amount from about 0.005 wt % to about 2 wt %, wherein weight percentages are based on a total weight of the particulate build material.

公开(公告)号：US11639448B2

公开(公告)日：2023-05-02

申请号：US15119230

申请日：2014-03-20

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

Inventor： Vladek Kasperchik ,  Phillip C. Cagle ,  David Michael Ingle ,  Paul Joseph Bruinsma

IPC: C09D11/322 ,  B41M7/00 ,  C09D11/10 ,  B41J2/01 ,  B41M5/00 ,  B41M3/00

Abstract: The present disclosure provides a white ink comprising an aqueous ink vehicle, a white colorant, and latex particles. The colorant can consist essentially of metal oxide particles present at from 2 wt % to 50 wt %, can have an average particle size from 100 nm to 1000 nm, and can have a high refractive index from 1.8 to 2.8. The latex can be present in the ink at from 2 wt % to 20 wt %, can have a glass transition temperature from 0° C. to 130° C., and can have a low refractive index from 1.3 to 1.6. The metal oxide particles and latex particles can be present in the white ink at weight ratio is from 6:1 to 1:3.