公开(公告)号：WO2021006873A1

公开(公告)日：2021-01-14

申请号：PCT/US2019/040862

申请日：2019-07-08

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

Inventor： SHEPHERD, Matthew A. ,  SCHRAMM, Morgan T. ,  VERZWYVELT, Vanessa ,  SCHISSLER, Dennis J. ,  CHENG, Xin ,  WRIGHT, Jacob

IPC: B29C64/165 ,  B29C64/20 ,  B29C64/393 ,  B33Y10/05 ,  B33Y30/00 ,  B33Y50/02

Abstract: In an example, a method includes segmenting, using a processor, a virtual volume comprising a representation of at least a part of an object to be generated in additive manufacturing. The virtual volume may be segmented into a plurality of segments and the object may be intended to have a first color. Additive manufacturing control instructions may be determined for the segments. The additive manufacturing control instructions may comprise instructions for distributing the print agent composition and the additive manufacturing control instructions for each segment may be determined based on the thermal properties of a print agent composition intended to provide the first color to compensate for variations in object dimensions associated with the thermal properties.

公开(公告)号：WO2015167446A2

公开(公告)日：2015-11-05

申请号：PCT/US2014/035789

申请日：2014-04-29

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

Inventor： TZENG, Di-Yuan ,  SCHISSLER, Dennis J. ,  JOHNSON, Craig T. ,  CHASE, Patrick J.

CPC classification number: H04N1/4078 ,  H04N1/0032 ,  H04N1/0405 ,  H04N1/12 ,  H04N1/3878 ,  H04N2201/0094 ,  H04N2201/0422

Abstract: A scanner is disclosed. The scanner has a background pattern that is captured as part of the scanned image. The scanner may be a flatbed scanner, a sheet-feed scanner, or a flatbed scanner using an automatic document feeder (ADF).

Abstract translation: 公开了一种扫描器。 扫描仪具有作为扫描图像的一部分捕获的背景图案。 扫描仪可以是平板扫描器，送纸扫描器或使用自动送稿器（ADF）的平板扫描仪。

公开(公告)号：WO2022255998A1

公开(公告)日：2022-12-08

申请号：PCT/US2021/035359

申请日：2021-06-02

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

Inventor： DISCEKICI, Emre Hiro ,  LONG, Greg Scott ,  SCHISSLER, Dennis J. ,  WOODRUFF, Shannon Reuben

IPC: B29C64/165 ,  B29C64/20 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y70/00

Abstract: A three-dimensional printing kit can include a polymer build material and a fusing agent. The polymer build material can include from about 80 wt% to about 100 wt% polymeric particles. The fusing agent can include an aqueous liquid vehicle, an electromagnetic radiation absorber to absorb radiation energy and convert the radiation energy to heat, and an endothermic decomposition compound that can undergo thermal decomposition at a temperature ranging from about 60 °C to about 400 °C.

公开(公告)号：WO2021071514A1

公开(公告)日：2021-04-15

申请号：PCT/US2019/055874

申请日：2019-10-11

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

Inventor： DISCEKICI, Emre Hiro ,  SABO, Thomas M. ,  RUDISILL, Stephen G. ,  SCHISSLER, Dennis J.

IPC: B29C64/165 ,  B29C70/88 ,  B33J10/00 ,  B33Y70/10

Abstract: A multi-fluid kit for three-dimensional printing can include a fusing agent and a coloring agent. The fusing agent can include an electromagnetic radiation absorber in a first liquid vehicle. The electromagnetic radiation absorber can absorb radiation energy and can convert the radiation energy to heat. The coloring agent can include a magenta rhodamine dye and a fluorescence quenching iodide salt in a second liquid vehicle. A molar ratio of the magenta rhodamine dye to the fluorescence quenching iodide salt can range from about 1:1 to about 1:10.

公开(公告)号：WO2016068977A1

公开(公告)日：2016-05-06

申请号：PCT/US2014/063322

申请日：2014-10-31

Applicant: HEWLETT PACKARD DEVELOPMENT COMPANY, L.P.

Inventor： SCHALK, Wesley R. ,  OLSON, Al ,  ROMAN, Justin M. ,  BINGHAM, Jeffrey G. ,  SCHISSLER, Dennis J. ,  DAVIS, Andrew T.

IPC: H04N1/04 ,  H04N1/028

CPC classification number: H04N1/00819 ,  H04N1/00018 ,  H04N1/00029 ,  H04N1/00045 ,  H04N1/00082 ,  H04N1/00087 ,  H04N1/028 ,  H04N1/03 ,  H04N1/0312 ,  H04N1/04 ,  H04N1/1017 ,  H04N1/1225 ,  H04N5/367 ,  H04N2201/0081 ,  H04N2201/02497 ,  H04N2201/0404 ,  H04N2201/0448

Abstract: In one example, a document scanner has a fixed-position scan bar and a built-in translatable calibration target. The scan bar has a linear array of imaging elements aimed in an imaging direction. The calibration target is spaced apart from and parallel to the linear array, and has a planar surface orthogonal to the imaging direction spanning the length of the linear array. The target is translatable during a calibration in a direction in a plane of the surface.

Abstract translation: 在一个示例中，文档扫描器具有固定位置扫描条和内置的可翻译校准目标。 扫描条具有瞄准成像方向的成像元件的线性阵列。 校准目标与线性阵列间隔开并平行，并且具有与成像方向正交的平面，该平面垂直于线性阵列的长度。 目标在校准期间可以在表面的平面中的方向上平移。

公开(公告)号：WO2022256004A1

公开(公告)日：2022-12-08

申请号：PCT/US2021/035409

申请日：2021-06-02

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

Inventor： STASIAK, James William ,  DISCEKICI, Emre Hiro ,  SCHISSLER, Dennis J.

IPC: B29C64/268 ,  B33Y30/00 ,  B33Y40/00 ,  B33Y50/02

Abstract: The present disclosure provides methods of three-dimensional printing, including iteratively applying individual build material layers of polyamide particles and selectively applying a fusing agent onto the individual build material layers to form individually patterned object layers. The fusing agent can include water and a radiation absorber. The method can also include selectively applying a pore-promoting agent onto the individual build material layers at some or all of the individually pattered object layers to form a pore-generating region, and iteratively exposing the individual build material layers to electromagnetic energy to generate molten polymer from polyamide particles in contact with the radiation absorber that upon cooling forms fused polymer body. A material used to form the fused polymer body without pores can exhibit a material dielectric permittivity, and the fused polymer body at a location that includes the pores can exhibit a decreased dielectric permittivity.

公开(公告)号：WO2022191858A1

公开(公告)日：2022-09-15

申请号：PCT/US2021/022206

申请日：2021-03-12

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

Inventor： DISCEKICI, Emre Hiro ,  WOODRUFF, Shannon Reuben ,  SCHISSLER, Dennis J. ,  NEGRI JIMENEZ, Graciela Emma

IPC: B29C64/165 ,  B33Y10/00 ,  B33Y70/10 ,  B33Y80/00

Abstract: The present disclosure includes a multi-fluid kit for three-dimensional printing. The multi-fluid kit can include a fusing agent comprising water and a radiation absorber that absorbs radiation energy and converts the radiation energy to heat, an acidic agent having a pH from about pH 1 to about pH 6.9 that includes water and an acidic component, and a pore-promoting agent including water and a pore-promoting compound. The pore-promoting compound can chemically react with the acidic component to generate a gas, and can be selected from sodium bicarbonate, potassium bicarbonate, or a combination thereof.

公开(公告)号：WO2022191857A1

公开(公告)日：2022-09-15

申请号：PCT/US2021/022186

申请日：2021-03-12

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

Inventor： DISCEKICI, Emre Hiro ,  SCHISSLER, Dennis J. ,  WOODRUFF, Shannon Reuben

IPC: B29C64/165 ,  B29C64/20 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B33Y70/10 ,  B33Y80/00

Abstract: The present disclosure provides methods of three-dimensional printing, including iteratively applying individual build material layers of polymer particles having a D50 particle size from about 20 µm to about 150 µm to a build material, and based on a three-dimensional object model, selectively applying a fusing agent onto the individual build material layers to form individually patterned object layers of the three-dimensional object and selectively applying a pore-promoting agent onto the individual build material layers at a discrete location of the individually patterned object layers to form a pore-generating region therein. The method also includes exposing the build material to electromagnetic energy to provide selective heat fusing of the polymer particles and to generate and displace molten polymer leaving a localized void having a void size from about 1 mm to about 20 mm.

公开(公告)号：WO2022150045A1

公开(公告)日：2022-07-14

申请号：PCT/US2021/012885

申请日：2021-01-11

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

Inventor： DISCEKICI, Emre Hiro ,  SCHISSLER, Dennis J. ,  WOODRUFF, Shannon Reuben

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

Abstract: The present disclosure describes multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of three-dimensional printing. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent and a ductility agent. The fusing agent can include water and electromagnetic radiation absorber. The electromagnetic radiation absorber can absorb radiation energy and convert the radiation energy to heat. The ductility agent can include water, a water-soluble pore-generating compound that chemically reacts at an elevated temperature to generate a gas, and a plasticizer. The plasticizer can have formula (I) wherein n is an integer ranging from 3 to 8; or formula (II) wherein m is an integer ranging from 3 to 8.

公开(公告)号：WO2020190304A1

公开(公告)日：2020-09-24

申请号：PCT/US2019/023427

申请日：2019-03-21

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

Inventor： KABALNOV, Alexey ,  WRIGHT, Jacob ,  SCHISSLER, Dennis J. ,  SABO, Thomas M. ,  TANDY, Jesiska

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

Abstract: Disclosed herein are kits, methods, systems, and compositions for threedimensional printing. In an example, disclosed herein is a multi-fluid kit for threedimensional printing comprising: a marking agent comprising a marking component which is a fluorescent color agent that is activated by ultraviolet radiation to emit light in the visible range of from about 400 nm to about 780 nm; a first fusing agent; a second fusing agent different from the first fusing agent; and a detailing agent.