公开(公告)号：US10195788B2

公开(公告)日：2019-02-05

申请号：US15562691

申请日：2015-05-29

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

Inventor： Salvador Sanchez Ribes ,  David Ramirez Muela ,  Pol Fornos Martinez ,  Sergio Puigardeu Aramendia

IPC: B29C64/393 ,  B29C64/165 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/386

Abstract: In some examples, an agent distributor may be to selectively deliver agent through nozzles of the agent distributor to portions of layers of build material in patterns derived from agent delivery control data representing slices of a three-dimensional object such that the portions are to solidify to form the slices in accordance with the patterns. While generating the three-dimensional object, the agent distributor may be primed such that a particle of the build material is removed from the agent distributor through at least one of the nozzles.

公开(公告)号：US20180017956A1

公开(公告)日：2018-01-18

申请号：US15545693

申请日：2015-04-24

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

Inventor： Juan Manuel Garcia Reyero Vinas ,  Sergio Puigardeu Aramendia ,  Alejandro Manuel De Pena ,  David Ramirez Muela

IPC: G05B19/4099

CPC classification number: G05B19/4099 ,  B29C64/386 ,  B33Y50/00 ,  G05B2219/35134 ,  G05B2219/49007 ,  G05B2219/49023 ,  Y02P90/265

Abstract: A method of fabricating a three dimensional object in an additive layer manufacturing process, e.g. 3D printing, wherein a three dimensional design of the three dimensional object is modelled as a plurality of three dimensional pixels or vortexes. For every pixel or vortex, at least one parameter is calculated and is used to select a setting for use when fabricating the three dimensional object. The parameter may be a speed or rate at which heat will diffuse away from the pixel or vortex, or a weighted density surrounding the pixel or vortex. The method provides higher quality fabrication of the three dimensional object.

公开(公告)号：US08848251B2

公开(公告)日：2014-09-30

申请号：US13753777

申请日：2013-01-30

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

Inventor： Sergio Puigardeu Aramendia ,  Ángel Martinez Barambio ,  M. Isabel Borrell Bayona ,  Luis García Garcia

IPC: H04N1/60 ,  G06K15/02

CPC classification number: G06K15/1881 ,  H04N1/4052

Abstract: A page-wide-array printer has a print unit including an array of print-heads, wherein a printing direction is defined by a relative movement between the print unit and a print medium during a printing process. The page-wide-array printer receives a continuous tone image and divides the continuous tone image into a series of slices along a printing direction. Halftone image data is generated from each of the slices using error diffusion halftoning. The error diffusion halftoning comprises processing, with regard to error diffusion, each slice pixel-by-pixel following a processing pattern mainly oriented along a main processing direction which is parallel to the printing direction. The page-wide-array printer prints the halftone image data along the printing direction.

Abstract translation: 页面阵列打印机具有包括打印头阵列的打印单元，其中在打印过程期间通过打印单元和打印介质之间的相对移动来定义打印方向。 页面宽阵列打印机接收连续色调图像，并将连续色调图像沿着打印方向分成一系列切片。 使用误差扩散半色调从每个切片生成半色调图像数据。 误差扩散半色调包括关于误差扩散，按照主要沿着与打印方向平行的主处理方向定向的处理模式逐像素处理每个切片。 页面宽阵列打印机沿打印方向打印半色调图像数据。

公开(公告)号：US20140092400A1

公开(公告)日：2014-04-03

申请号：US14119089

申请日：2011-06-01

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

Inventor： Maria Isabel Borrell Bayona ,  Luis Garcia Garcia ,  Sergio Puigardeu Aramendia ,  Angel Martinez Barambio

IPC: G06K15/00 ,  G06K15/16

CPC classification number: G06K15/186 ,  G06K15/102 ,  G06K15/16 ,  G06K15/1868 ,  G06K15/407

Abstract: One example includes a printer (110) having a calculator (120) to determine plot density of a printer content page (130). A controller (140) is provided to set a print parameter based on the determined plot density for the printer content page (130) to mitigate dry time for a printed output page (150).

Abstract translation: 一个示例包括具有计算器（120）以确定打印机内容页面（130）的图密度的打印机（110）。 提供控制器（140），用于基于确定的打印机内容页面（130）的绘图密度来设置打印参数，以减轻打印输出页面（150）的干燥时间。

公开(公告)号：US11897204B2

公开(公告)日：2024-02-13

申请号：US16759921

申请日：2017-12-06

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

Inventor： Pol Fornos ,  David Ramirez Muela ,  Sergio Puigardeu Aramendia

IPC: B29C67/00 ,  B29C64/40 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/393 ,  B33Y40/20 ,  B33Y40/00

CPC classification number: B29C64/40 ,  B29C64/153 ,  B29C64/393 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y40/20 ,  B33Y50/02

Abstract: In an example, a method includes in an additive manufacturing process, generating a first object and generating an ancillary object on top of the first object to reduce a thermal gradient of the first object during cooling.

公开(公告)号：US20230144471A1

公开(公告)日：2023-05-11

申请号：US17997495

申请日：2020-05-22

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

Inventor： Alfonso Cameno Salinas ,  Jordi Gorchs Pahisa ,  Carmen Blasco Cortes ,  Marc Guillaumet Campmany ,  Sergio Puigardeu Aramendia ,  Clara Remacha Corbalan ,  Andreu Oliver Gonzalez ,  Arturo Garcia Gomez

IPC: A62B23/02 ,  A41D13/11 ,  B33Y80/00

CPC classification number: A62B23/02 ,  A41D13/1107 ,  B33Y80/00 ,  B33Y10/00

Abstract: A mask is described comprising a mask body for covering the nose and mouth of a wearer, and a cushion for sealing against the wearer's face. The cushion depends inwardly from the periphery of the mask body. The mask body and the cushion are formed of an elastomeric material, and the mask body is shaped such that, when the mask is worn by the wearer, the mask body flexes about a median plane.

公开(公告)号：US20220388068A1

公开(公告)日：2022-12-08

申请号：US17338125

申请日：2021-06-03

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

Inventor： Jorge Diosdado Borrego ,  Michel Georges Encrenaz ,  Sergio Puigardeu Aramendia ,  Rocio Munoz Moreno

IPC: B22F10/68 ,  B22F10/73 ,  B22F12/90 ,  B33Y40/20 ,  B33Y50/02 ,  B29C64/35 ,  B29C64/357 ,  B29C64/393

Abstract: In one example, a decaking system for 3D printing includes a platform to support multiple green parts in unbound powder surrounding the green parts, a decaking tool to remove unbound powder from around the green parts, a camera to photograph green parts on the platform as unbound powder is removed from around the green parts, and a controller operatively connected to the camera. The controller is programmed to detect a pattern of light intensity in the photographs and, in response to a determination a detected pattern matches a reference pattern, modulate or stop the decaking tool.

公开(公告)号：US11364685B2

公开(公告)日：2022-06-21

申请号：US16092735

申请日：2016-05-12

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

Inventor： Carmen Blasco ,  Sergio Puigardeu Aramendia ,  Alejandro Manuel De Pena ,  Scott White

IPC: B29C64/393 ,  B33Y50/02 ,  G05B19/418 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y30/00 ,  B29C64/165 ,  B29C64/153

Abstract: According to an example, a computing apparatus may include a processing device and a machine readable storage medium on which is stored instructions that when executed by the processing device, cause the processing device to access, from a sensing device, information pertaining to formation of a part of a 3D object in a layer of build materials upon which fusing agent droplets have been or are to be selectively deposited. The instructions may also cause the processing device to predict, based upon the accessed information, a quality of the part and output an indication of the predicted quality of the part.

公开(公告)号：US20220143705A1

公开(公告)日：2022-05-12

申请号：US17417743

申请日：2019-07-23

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

Inventor： Sergio Puigardeu Aramendia ,  Macia Sole Pons

IPC: B22F10/85 ,  B22F10/14 ,  B29C64/165 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A method comprises receiving data representing a 3D object model. The 3D object model is for use in generating a 3D object in a build chamber by forming a plurality of successive layers. Each layer is formed by providing a layer of build material and applying a volume of a binder agent to a plurality of voxel locations of the layer of the build material. The volume of the binder agent to be applied to each voxel location is based on the volume of binder agent to be applied to proximate voxel locations of the 3D object.

公开(公告)号：US11318678B2

公开(公告)日：2022-05-03

申请号：US16304493

申请日：2016-07-04

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

Inventor： Pol Fornos ,  David Ramirez Muela ,  Sergio Puigardeu Aramendia

IPC: B29C64/393 ,  B33Y10/00 ,  B33Y50/02 ,  B29C64/165 ,  B29C64/386 ,  B33Y30/00 ,  B29C64/209

Abstract: Certain examples described herein relate to preparing a base of build material for additive manufacturing. The base is formed from layers of build material that do not form part of an object undergoing additive manufacture. The base is heated by the application of energy, for example using a radiation source. A thermal profile of the base is measured after heating and is used to determine a pattern of application of at least one printing agent to the base. The pattern of application is used to deposit the at least one printing agent upon the base, wherein the presence of the printing agent affects the heating of the base. In this way the pattern of application of printing agent may be used to effect a thermal homogeneity of the base.