公开(公告)号：US10680160B2

公开(公告)日：2020-06-09

申请号：US15026311

申请日：2013-10-30

Applicant: Hewlett-Packard Development Company, L.P. ,  State of Oregon on behalf of Oregon State Univ.

Inventor： James Elmer Abbott, Jr. ,  Peter Mardilovich ,  Brady Gibbons ,  Bryan Alexander Maack

IPC: H01L41/09 ,  H01L41/27 ,  H01L41/332 ,  H01L41/08 ,  B41J2/16 ,  B41J2/14 ,  H01L41/047 ,  H01L41/187

Abstract: The present disclosure is drawn to a piezoelectric thin film stack and method of preparing the same. The piezoelectric thin film stack can comprise a substrate with an oxide application surface, a metal oxide adhesive blend layer applied to the oxide application surface, and a piezoelectric film applied directly to the metal oxide adhesive blend layer.

公开(公告)号：US10532571B2

公开(公告)日：2020-01-14

申请号：US15544999

申请日：2015-03-12

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

Inventor： Zhizhang Chen ,  James Elmer Abbott, Jr. ,  Michael W Cumbie ,  Roberto A Pugliese

IPC: B41J2/14 ,  B41J2/16

Abstract: In one example, a printhead structure includes an ejector element, a multi-layer insulator covering the ejector element, and an amorphous metal on the insulator.

公开(公告)号：US20190143559A1

公开(公告)日：2019-05-16

申请号：US16098073

申请日：2016-07-20

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

Inventor： James Elmer Abbott, Jr. ,  Vladek Kasperchik

IPC: B28B1/00 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/165

Abstract: A method for additive manufacturing includes: forming a three-dimensional object by: depositing a layer of a powdered build material onto a surface; selectively depositing a liquid comprising a susceptor onto the layer of the powdered build material in a pattern; and heating the object by electromagnetic radiation with a microwave or radio wave frequency, in an atmosphere including oxygen, to a temperature sufficient to sinter the powdered build material.

公开(公告)号：US20190047215A1

公开(公告)日：2019-02-14

申请号：US16071018

申请日：2016-04-11

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

Inventor： Ning Ge ,  James Elmer Abbott, Jr. ,  Steven J Simske ,  Paul J Benning ,  Lihua Zhao

IPC: B29C64/165 ,  B22F3/105 ,  B28B1/00 ,  B22F1/02 ,  B33Y30/00 ,  B33Y70/00

Abstract: The present disclosure is drawn to a particulate build material for three-dimensional printing. The particulate build material can include a plurality of particulates, wherein individual particulates include a particulate core having a photosensitive coating applied to a surface of the particulate core. The particulate core includes a metal, a ceramic, or both a metal and a ceramic. The photosensitive coating includes a polymer having a photosensitive agent suspended or attached therein.

公开(公告)号：US11633915B2

公开(公告)日：2023-04-25

申请号：US17107486

申请日：2020-11-30

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

Inventor： James Elmer Abbott, Jr. ,  David A. Champion ,  Chris Paul Schodin

IPC: B29C64/245 ,  B33Y30/00 ,  B33Y50/02 ,  B33Y10/00 ,  B33Y40/00 ,  B29C64/165 ,  B29C64/112 ,  B29C64/393 ,  B29C64/291

Abstract: In example implementations, an apparatus includes a housing, a movable base, a tab portion and a coupling mechanism. The housing is comprised of a microwave transparent material. The movable base is coupled to the housing to receive build material that is digitally printed. The tab portion is coupled to a bottom portion of at least one wall of the housing. The tab portion stops the movable base. The coupling mechanism is coupled to the housing to removably attach the apparatus to a three dimensional printer.

公开(公告)号：US11541568B2

公开(公告)日：2023-01-03

申请号：US15763183

申请日：2016-01-28

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

Inventor： James Elmer Abbott, Jr. ,  Vladek Kasperchik

IPC: B33Y30/00 ,  B33Y10/00 ,  B29C64/165 ,  B33Y70/10 ,  B33Y50/02 ,  B29C64/20 ,  B29C64/393 ,  B28B1/00 ,  B29C67/00 ,  B28B17/00

Abstract: In an example of a three-dimensional (3D) printing method, a ceramic build material is applied. A detailing agent fluid is applied to a portion of the ceramic build material. The detailing agent fluid includes a cationic polymer. A liquid functional material, including an anionically stabilized susceptor material, is applied to another portion of the ceramic build material that is in contact with the portion of the ceramic build material having the detailing agent fluid thereon, such that at least some of the anionically stabilized susceptor material reacts with at least some of the cationic polymer that is in contact therewith to prevent spreading of the anionically stabilized susceptor material.

公开(公告)号：US11458679B2

公开(公告)日：2022-10-04

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: B29C64/165 ,  B33Y30/00 ,  B29C64/291 ,  B29C64/277 ,  B29C64/264 ,  B29C64/268 ,  B29C35/08 ,  B29C67/00 ,  B33Y10/00 ,  B29C64/205 ,  B29C64/209

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：US11260556B2

公开(公告)日：2022-03-01

申请号：US16098073

申请日：2016-07-20

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

Inventor： James Elmer Abbott, Jr. ,  Vladek Kasperchik

IPC: B29C64/165 ,  B29C64/129 ,  B33Y70/00 ,  B33Y10/00 ,  B28B1/00 ,  B29C64/364 ,  B29C64/124 ,  B33Y70/10 ,  B29C35/08

Abstract: A method for additive manufacturing includes: forming a three-dimensional object by: depositing a layer of a powdered build material onto a surface; selectively depositing a liquid comprising a susceptor onto the layer of the powdered build material in a pattern; and heating the object by electromagnetic radiation with a microwave or radio wave frequency, in an atmosphere including oxygen, to a temperature sufficient to sinter the powdered build material.

公开(公告)号：US11020874B2

公开(公告)日：2021-06-01

申请号：US15771134

申请日：2016-02-25

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

Inventor： James Elmer Abbott, Jr. ,  Vladek Kasperchik ,  Joshua Flynn

IPC: B33Y70/00 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02 ,  B32B18/00 ,  B29C67/00 ,  C04B35/64 ,  C04B35/634 ,  B28B1/00 ,  B28B7/46 ,  C04B35/111 ,  C04B35/626 ,  B29C64/165 ,  C04B35/632 ,  B33Y50/00 ,  B29C65/14

Abstract: In an example of a three-dimensional (3D) printing method, a ceramic build material is applied. A liquid functional material, including an anionically stabilized susceptor material, is applied to at least a portion of the ceramic build material. A sintering aid/fixer fluid, including a cationically stabilized amphoteric alumina particulate material, is applied to the at least the portion of the ceramic build material. The applied anionically stabilized susceptor material and the applied cationically stabilized amphoteric alumina particulate material react to immobilize the anionically stabilized susceptor material, thereby patterning the at least the portion of the ceramic build material.

公开(公告)号：US10478994B2

公开(公告)日：2019-11-19

申请号：US15512422

申请日：2014-10-08

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

Inventor： David A. Champion ,  James Elmer Abbott, Jr.

IPC: B28B1/00 ,  B28B11/24 ,  B29C64/165 ,  B33Y70/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B28B17/00 ,  B29C64/209 ,  B29C64/291

Abstract: In one example, a method of fabricating a three-dimensional object includes depositing a layer of build material, depositing a coalescing agent onto the layer of build material according to a slice of three-dimensional model data, irradiating the coalescing agent with microwave radiation such that the coalescing agent converts the microwave radiation into heat to coalesce the build material in which the coalescing agent was deposited.