公开(公告)号：US20190037646A1

公开(公告)日：2019-01-31

申请号：US16073163

申请日：2016-06-17

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

Inventor： Sterling Chaffins ,  Cassady Sparks Roop ,  Kevin P. DeKam

IPC: H05B3/14 ,  B29C64/209 ,  B29C64/165

Abstract: According to an example, a three-dimensional (3D) printed heater may include a part body formed of fused thermoplastic polymer particles and an electrically resistive element formed of a matrix of conductive particles interspersed between a matrix of thermoplastic polymer particles. The conductive particles and the thermoplastic polymer particles may be provided at respective densities to cause the electrically resistive element to have a predetermined resistance level. The 3D printed heater may also include electrical contacts connected to the electrically resistive element, in which a current is to be applied through the electrically resistive element via the electrical contacts to cause the electrically resistive element to generate a predefined level of heat.

公开(公告)号：US20140137766A1

公开(公告)日：2014-05-22

申请号：US14232800

申请日：2011-07-28

Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY L.P.

Inventor： Sterling Chaffins ,  Kevin P. DeKam ,  Jayprakash C. Bhatt ,  Mehrgan Khavari

IPC: C09D11/00

CPC classification number: C09D11/38 ,  C09D11/10 ,  C09D11/102

Abstract: An ink is disclosed. The ink composition includes an ink vehicle, a colorant, and a fluorosurfactant, wherein the fluorosurfactant is a polymer having the general formula: wherein p is any integer, q is any integer, Z1 and Z2 are each fluorine or any functional group, and R1, R2, R3 are each fluorine, any alkyl group, or any functional group, and wherein R1, R2, R3, Z1, and Z2 are not all fluorine and the fluorosurfactant lowers the surface tension of the ink vehicle. A method for improving a property of an ink is also disclosed.

Abstract translation: 公开了一种墨水。 油墨组合物包括油墨载体，着色剂和含氟表面活性剂，其中含氟表面活性剂是具有以下通式的聚合物：其中p是任何整数，q是任何整数，Z 1和Z 2各自是氟或任何官能团，R 1 R 2，R 3各自为氟，任何烷基或任何官能团，并且其中R 1，R 2，R 3，Z 1和Z 2不全为氟，氟表面活性剂降低油墨载体的表面张力。 还公开了一种改善墨水性能的方法。

公开(公告)号：US20250058519A1

公开(公告)日：2025-02-20

申请号：US18938212

申请日：2024-11-05

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

Inventor： Sterling Chaffins ,  Thomas A. Saksa ,  Kevin P. DeKam ,  Juan Sebastian Ramirez ,  Dale Peterson ,  Jami Ryan Barone

IPC: B29C64/295 ,  B22F1/054 ,  B22F1/10 ,  B29C64/165 ,  B29C64/268 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/10

Abstract: Methods and systems for making three-dimensional printed articles. In one example, a method of making a three-dimensional article can include printing a conductive element including a composite of a conductive material and a polymeric build material; printing an adjacent portion in contact with the conductive element, where the adjacent portion includes a nonconductive polymeric build material; and heating the conductive element by running an electric current through the conductive element, and thereby heating the adjacent portion to a temperature sufficient to change a physical property of the nonconductive polymeric build material of the adjacent portion.

公开(公告)号：US11981075B2

公开(公告)日：2024-05-14

申请号：US17891922

申请日：2022-08-19

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

Inventor： Garry Hinch ,  Kevin P. DeKam ,  Sterling Chaffins ,  James William Stasiak

IPC: B29C64/165 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y70/10

CPC classification number: B29C64/165 ,  B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y70/10 ,  B29K2995/0018

Abstract: A 3-dimensional printed part can include a part body including a first matrix of fusing agent and thermoplastic polymer powder, a security feature including a second matrix of fusing agent, thermoplastic polymer powder, and photoluminescent agent, and a masking feature including a third matrix of fusing agent and thermoplastic polymer powder. The security feature can be positioned beneath and visible through the masking feature upon photoluminescent emission of the security feature.

公开(公告)号：US11760010B2

公开(公告)日：2023-09-19

申请号：US17561425

申请日：2021-12-23

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

Inventor： Yan Zhao ,  Kristopher J. Erickson ,  Aja Hartman ,  Lihua Zhao ,  Sterling Chaffins ,  Kevin P. DeKam

IPC: B29C64/165 ,  B33Y10/00 ,  B29C64/112 ,  B29C64/393 ,  B33Y70/10 ,  B33Y70/00 ,  B33Y30/00 ,  B29C64/20 ,  B33Y50/02 ,  B29K77/00 ,  B29K105/00 ,  B29K105/16 ,  B29K505/14 ,  B29K507/04

CPC classification number: B29C64/165 ,  B29C64/112 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y70/10 ,  B29C64/20 ,  B29C64/393 ,  B29K2077/00 ,  B29K2105/005 ,  B29K2105/0023 ,  B29K2105/0032 ,  B29K2105/162 ,  B29K2505/14 ,  B29K2507/04 ,  B29K2995/0005 ,  B33Y30/00 ,  B33Y50/02

Abstract: In an example method for forming three-dimensional (3D) printed electronic parts, a build material is applied. An electronic agent is selectively applied in a plurality of passes on a portion of the build material. A fusing agent is also selectively applied on the portion of the build material. The build material is exposed to radiation in a plurality of heating events. During at least one of the plurality of heating events, the portion of the build material in contact with the fusing agent fuses to form a region of a layer. The region of the layer exhibits an electronic property. An order of the plurality of passes, the selective application of the fusing agent, and the plurality of heating events is controlled to control a mechanical property of the layer and the electronic property of the region.

公开(公告)号：US11427725B2

公开(公告)日：2022-08-30

申请号：US16074235

申请日：2016-04-28

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

Inventor： James William Stasiak ,  Garry Hinch ,  Sterling Chaffins ,  Kevin P. DeKam

IPC: C09D11/50 ,  B33Y30/00 ,  B33Y70/00 ,  B29C64/112 ,  B33Y80/00 ,  B29C64/165 ,  C09D11/037 ,  C09D11/102 ,  C09D11/322 ,  C09D11/54 ,  B82Y20/00 ,  B82Y40/00

Abstract: The present disclosure is drawn to material sets for 3-dimensional printing, 3-dimensional printing systems, and 3-dimensional printed parts. A material set can include a thermoplastic polymer powder having an average particle size from 20 μm to 100 μm, a photoluminescent ink including a photoluminescent agent, and a fusing ink. The fusing ink can include a fusing agent capable of absorbing electromagnetic radiation to produce heat.

公开(公告)号：US20220126507A1

公开(公告)日：2022-04-28

申请号：US17298889

申请日：2019-07-16

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

Inventor： Emre Hiro Discekici ,  Shannon Reuben Woodruff ,  Cory J. Ruud ,  Vladek Kasperchik ,  Jesiska Tandy ,  Kevin P. DeKam

IPC: B29C64/165 ,  B33Y10/00 ,  C09D11/108 ,  B33Y70/00 ,  C09D11/104 ,  C09D11/037 ,  C09D11/107 ,  B33Y30/00 ,  B29K509/02

Abstract: The present disclosure is drawn to three-dimensional printing kits, methods of making magnetic three-dimensional printed articles, and systems for three-dimensional printing. In one example, a three-dimensional printing kit can include a powder bed material, a fusing agent, and a magnetic agent. The powder bed material can include polymer particles. The fusing agent can include water and a non-magnetic radiation absorber. The non-magnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The magnetic agent can include a dispersion of magnetic nanoparticles.

公开(公告)号：US20220118694A1

公开(公告)日：2022-04-21

申请号：US17561425

申请日：2021-12-23

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

Inventor： Yan Zhao ,  Kristopher J. Erickson ,  Aja Hartman ,  Lihua Zhao ,  Sterling Chaffins ,  Kevin P. DeKam

IPC: B29C64/165 ,  B33Y70/00 ,  B29C64/112 ,  B33Y10/00 ,  B29K105/00 ,  B29K505/14 ,  B29C64/393 ,  B29K77/00 ,  B29K105/16 ,  B33Y50/02 ,  B33Y30/00 ,  B29K507/04 ,  B29C64/20

Abstract: In an example method for forming three-dimensional (3D) printed electronic parts, a build material is applied. An electronic agent is selectively applied in a plurality of passes on a portion of the build material. A fusing agent is also selectively applied on the portion of the build material. The build material is exposed to radiation in a plurality of heating events. During at least one of the plurality of heating events, the portion of the build material in contact with the fusing agent fuses to form a region of a layer. The region of the layer exhibits an electronic property. An order of the plurality of passes, the selective application of the fusing agent, and the plurality of heating events is controlled to control a mechanical property of the layer and the electronic property of the region.

公开(公告)号：US11001050B2

公开(公告)日：2021-05-11

申请号：US16073585

申请日：2016-04-20

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

Inventor： Sterling Chaffins ,  Kevin P. DeKam ,  Cassady S. Roop ,  Bret McHuron-Guss

IPC: B33Y80/00

Abstract: The present disclosure is drawn to material sets for 3-dimensional printing, 3-dimensional printing systems, and 3-dimensional printed parts. A material set can include a thermoplastic polymer powder having an average particle size from 20 μm to 100 μm, an x-ray contrast ink including a jettable x-ray contrast agent, and a fusing ink. The fusing ink can include a fusing agent capable of absorbing electromagnetic radiation to produce heat.

公开(公告)号：US09707766B2

公开(公告)日：2017-07-18

申请号：US15111148

申请日：2014-01-29

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

Inventor： Sterling Chaffins ,  Kevin P. DeKam ,  Chien-Hua Chen

IPC: B41J2/175 ,  B29B11/06 ,  B41J2/015 ,  B41J2/16 ,  B41J2/14

CPC classification number: B41J2/175 ,  B29B11/06 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1628 ,  B41J2/1629 ,  B41J2/1632 ,  B41J2/1637 ,  B41J2002/14362 ,  H01L2924/181 ,  H01L2924/186

Abstract: A fluid directing assembly can comprise a molded support comprising a modified epoxy molded compound which includes epoxy resin, cross-linker, filler, and is devoid of wax release agent. The assembly can also include a silicon die attached to the molded support and wherein the silicon die and the molded support define a fluid directing channel.