Patents by Inventor Vladek Kasperchik

Vladek Kasperchik has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • THREE-DIMENSIONAL PRINTER
    Publication number: 20200198178
    Abstract: According to an example, a three-dimensional (3D) printer may include a spreader to spread build material granules into a layer on a build area platform, a pressing die positioned above the layer of spread build material granules, in which the pressing die is to apply pressure onto the layer of build material granules to fragment the build material granules into primary particles to increase the density of the layer of build material granules, and a printhead to selectively deposit a fusing agent between the primary particles of the spread layer of build material granules.
    Type: Application
    Filed: January 29, 2016
    Publication date: June 25, 2020
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Michael G Monroe, Vladek Kasperchik, Pavel Kornilovich, David A Champion
  • Three-dimensional (3D) printing
    Patent number: 10682810
    Abstract: In an example of a three-dimensional printing method, a polymeric build material is applied. A fusing agent is selectively applied on at least a portion of the polymeric build material. The fusing agent includes cesium tungsten oxide nanoparticles, a zwitterionic stabilizer, and an aqueous vehicle. The polymeric build material is exposed to electromagnetic radiation to fuse the portion of the polymeric build material in contact with the fusing agent to form a layer.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: June 16, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Stephen G. Rudisill, Vladek Kasperchik, Alexey S. Kabalnov, Shannon Reuben Woodruff, Thomas M. Sabo, Jake Wright, Hector Lebron, Vanessa Verzwyvelt, Morgan T. Schramm, Matthew A. Shepherd
  • Three-dimensional (3D) printing
    Patent number: 10661503
    Abstract: In a three-dimensional (3D) printing method example, build material granules are applied. Each of the build material granules includes a plurality of primary ceramic particles agglomerated together by a binder that is at least partially soluble in a primary solvent of a fusing agent. Pressure is applied to crush the build material granules. The fusing agent is selectively applied on at least a portion of the build material granules or the crushed build material granules to pattern the portion, and to introduce a latent binder to the portion. The application of the build material granules, the application of the pressure, and the selectively application of the fusing agent are repeated to create a green body. The latent binder is activated by heating the green body in order to produce a cured green body.
    Type: Grant
    Filed: April 13, 2016
    Date of Patent: May 26, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Michael G. Monroe, Vladek Kasperchik, David Michael Ingle
  • LIGHTING FOR ADDITIVE MANUFACTURING
    Publication number: 20200139627
    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.
    Type: Application
    Filed: January 6, 2020
    Publication date: May 7, 2020
    Inventors: Krzysztof Nauka, Sivapackia Ganapathiappan, Lihua Zhao, Howard S. Tom, Yan Zhao, Hou T. Ng, James Elmer Abbott, JR., Alexander Govyadinov, Vladek Kasperchik
  • White inks
    Patent number: 10570300
    Abstract: The present disclosure provides a white ink including an aqueous ink vehicle; from 5 wt % to 50 wt % of a white metal oxide pigment having an average particulate size from 75 nm to 2,000 nm and a refractive index of 1.8 to 2.8; and from 0.1 wt % to 15 wt % of fumed oxide particulates having a tertiary agglomerated average particulate size from 20 nm to 750 nm and a refractive index of 1.1 to 1.6. The white ink further includes a polymeric dispersant associated with a surface of the white metal oxide pigment.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: February 25, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Paul Joseph Bruinsma, Thomas W. Butler
  • Non-Newtonian white inks
    Patent number: 10533106
    Abstract: The present disclosure provides an example where a non-Newtonian white ink can include an aqueous ink vehicle, from 5 wt % to 60 wt % of white colorant, and from 0.1 wt % to 5 wt % of amphoteric alumina particles dispersed in the aqueous ink vehicle. The white colorant can include white metal oxide pigment having an average particulate size from 100 nm to 2,000 nm, an alumina coating on the white metal oxide pigment forming an alumina-coated pigment, and a polymeric dispersant associated with a surface of the alumina-coated pigment. The amphoteric alumina particles can have an average particles size from 2 nm to less than 100 nm.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: January 14, 2020
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Paul Joseph Bruinsma, Thomas W. Butler
  • THREE-DIMENSIONAL (3D) PRINTING A PHARMACEUTICAL TABLET
    Publication number: 20190343769
    Abstract: In an example of a three-dimensional (3D) printing method for forming a pharmaceutical tablet, build material granules are applied. Each of the build material granules includes a plurality of excipient particles, wherein at least one of the plurality of excipient particles is a latent binder. Pressure is applied to the build material granules. An activation solvent is selectively applied on at least a portion of the pressed build material granules. An active pharmaceutical ingredient formulation including an active pharmaceutical ingredient is selectively applied on the at least the portion of the pressed build material granules. The activation solvent is evaporated.
    Type: Application
    Filed: February 24, 2017
    Publication date: November 14, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Michael G. Monroe, Michael J. Regan
  • White inks
    Patent number: 10472530
    Abstract: The present disclosure provides an example of a white ink. The ink includes an aqueous ink vehicle and from 5 wt % to 60 wt % of a white flocculated colorant mass. The white flocculated colorant mass can include white metal oxide pigment having an average particulate size from 100 nm to 2,000 nm, silica coated on the white metal oxide pigment to form a silica-coated pigment, and a polymeric dispersant associated with a surface of the silica-coated pigment.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: November 12, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Paul Joseph Bruinsma, Marcos A. Barreto
  • White inks
    Patent number: 10465085
    Abstract: The present disclosure provides an example where a white ink can include an aqueous ink vehicle and from 5 wt % to 60 wt % of a white flocculated colorant mass. The white flocculated colorant mass can include white metal oxide pigment, an alumina coating, and polymeric dispersant associated with a surface of the alumina-coated pigment. The white metal oxide pigment can have an average particulate size from 100 nm to 2,000 nm. The alumina coating on the white metal oxide pigment can form an alumina-coated pigment where the alumina coating is predominantly alumina, and the white metal oxide pigment content to alumina content can be from 99:1 to 9:1 by weight.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: November 5, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Paul Joseph Bruinsma, Marcos A. Barreto
  • Fluid sets for inkjet imaging
    Patent number: 10464341
    Abstract: The present disclosure is drawn to a fluid set for inkjet imaging which includes a white inkjet ink and a fixer fluid. The white ink can include an aqueous ink vehicle, from 5 wt % to 50 wt % of a white metal oxide pigment having an average particulate size from 100 nm to 2,000 nm, and from 0.1 wt % to 4 wt % of anionic oxide particulates having an average particulate size from 1 nm to 100 nm. The white ink can also include a non-ionic or predominantly non-ionic dispersant having an acid number not higher than 100 mg KOH/g based on dry polymer weight. The fixer fluid can include an aqueous fixer vehicle and from 0.1 wt % to 25 wt % cationic polymer.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: November 5, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Thomas W. Butler, Paul Joseph Bruinsma
  • Three-dimensional (3D) printing
    Patent number: 10434709
    Abstract: In a 3D printing method example, color is added to a part. A build material is applied, and is pre-heated to a temperature ranging from about 50 C to about 400 C. A black ink, including an infrared absorbing colorant, is selectively applied on at least a portion of the build material. A white ink, including a white colorant that is opaque in visible wavelengths and is transparent to infrared wavelengths, is selectively applied on the black ink. A colored ink, including a colorant having a color other than black or white, is selectively applied on the white ink. The build material and the applied inks are then exposed to infrared radiation. The black ink at least partially fuses the portion of the build material in contact therewith. At least some of the white colorant and the colorant are embedded in the at least partially fused portion at a surface thereof.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: October 8, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Alexey S. Kabalnov, Jacob Tyler Wright, Vladek Kasperchik
  • White inks
    Patent number: 10414933
    Abstract: The present disclosure provides a white ink including an aqueous ink vehicle, from 5 wt % to 50 wt % of a white metal oxide pigment having an average particulate size from 100 nm to 2,000 nm, from 0.1 wt % to 4 wt % of anionic oxide particulates having an average particulate size from 1 nm to 100 nm, from 2 wt % to 30 wt % of latex particulates having a glass transition temperature from 0 C. to 130 C., and a non-ionic or predominantly non-ionic dispersant having an acid number not higher than 100 mg KOH/g based on dry polymer weight. The white metal oxide pigment and anionic oxide particulates are present in the white ink at a weight ratio from 5:1 to 200:1.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: September 17, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, Thomas W. Butler, Paul Joseph Bruinsma
  • METALLIC BUILD MATERIAL GRANULES
    Publication number: 20190270135
    Abstract: A metallic build material granule includes a plurality of primary metal particles and a temporary binder agglomerating the plurality of primary metal particles together. The primary metal particles have a primary metal particle size ranging from about the 1 ?m to about 20 ?m. The primary metal particles are non-shape memory metal particles, and the metallic build material granule excludes shape memory metal particles.
    Type: Application
    Filed: May 14, 2019
    Publication date: September 5, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Vladek Kasperchik, Michael G. Monroe, Johnathon Holroyd
  • Non-Newtonian inkjet inks
    Patent number: 10400122
    Abstract: The present disclosure provides non-Newtonian inkjet inks and related methods. In one example, a non-Newtonian inkjet ink include a dispersion of metal oxide particles in an amount ranging from 0.1% to 10% by weight based on the total weight of the non-Newtonian inkjet ink; a salt in an amount of 0.05% to 10% by weight based on the total weight of the non-Newtonian inkjet ink; and an organic solvent. Additionally, the metal oxide form a structured network in a presence of the salt and the inkjet ink have a dynamic viscosity ranging from 25 cps to 10,000 cps at shear rate of 5 s?1 and a dynamic viscosity ranging from 1 cps to 50 cps at a shear rate of 10,000 s?1.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: September 3, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Raymond Adamic, Vladek Kasperchik
  • MATERIAL SETS
    Publication number: 20190240898
    Abstract: The present disclosure is drawn to material sets for 3-dimensional printing. The material set can include a thermoplastic polymer powder having an average particle size from 20 ?m to 200 ?m, a conductive fusing agent composition including a transition metal, and nonconductive fusing agent composition. The nonconductive fusing agent composition can include transition metal oxide bronze particles.
    Type: Application
    Filed: October 25, 2016
    Publication date: August 8, 2019
    Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
    Inventors: Sterling Chaffins, Cassady Sparks Roop, Kevin P DeKam, Vladek Kasperchik, Ali Emamjomeh, Johnathon Holroyd, Stephen G Rudisill, Alexey S Kabalnov
  • ADDITIVE MANUFACTURING IN AN ATMOSPHERE INCLUDING OXYGEN
    Publication number: 20190143559
    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.
    Type: Application
    Filed: July 20, 2016
    Publication date: May 16, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: James Elmer Abbott, Jr., Vladek Kasperchik
  • ADDITIVE MANUFACTURING
    Publication number: 20190134713
    Abstract: Additive manufacturing includes forming a three-dimensional (3D) object by depositing a layer of a powdered build material onto a surface, selectively depositing a first liquid that includes a binder onto the layer of the powdered build material in a first pattern, selectively depositing a second liquid that includes reducible metal oxide particles in a second pattern onto the layer of powdered build material, and heating the object in the presence of at least one reducing agent to sinter the solid particles delivered with either the first liquid or the second liquid and the powdered build material and reduce the metal oxide particles to a metallic state.
    Type: Application
    Filed: July 22, 2016
    Publication date: May 9, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: James Elmer Abbott, JR., Vladek Kasperchik
  • MATERIAL SETS
    Publication number: 20190134895
    Abstract: The present disclosure is drawn to material sets, methods and printed articles and container supports. In one example, a material set can include a particulate fusible build material a particulate fusible build material having an average particle size ranging from about 0.01 ?m to about 200 ?m. The material set can also include a fusing ink including a fusing agent in a first liquid vehicle, wherein the fusing agent fuses the particulate fusible build material when exposed to electromagnetic energy or thermal energy. The material set can also include a binding ink including a binding agent in a second liquid vehicle, wherein the binding agent temporarily binds the particulate fusible build material when exposed to moderate temperatures ranging from ambient to 150° C.
    Type: Application
    Filed: July 20, 2016
    Publication date: May 9, 2019
    Inventors: James Elmer Abbott, Jr., Vladek Kasperchik, David A. Champion, James P. Shields
  • Fluid sets for inkjet imaging
    Patent number: 10273374
    Abstract: The present disclosure is drawn to fluid sets for inkjet imaging and can comprise a white ink and a fixer fluid. The white ink can include an aqueous ink vehicle, from 5 wt % to 50 wt % of a white metal oxide pigment, and from 0.02 wt % to 2 wt % of an anionic low molecular weight polymer. The white metal oxide pigment can have an average particulate size from 100 nm to 2,000 nm, and can be dispersed by a non-ionic or predominantly non-ionic dispersant having an acid number not higher than 100 mg KOH/g based on dry polymer weight. The anionic low molecular weight polymer can have a weight average molecular weight of 3,000 Mw to 50,000 Mw and an acid number higher than 100 mg KOH/g based on dry polymer weight. The fixer fluid can include an aqueous fixer vehicle and from 0.1 wt % to 25 wt % cationic polymer.
    Type: Grant
    Filed: April 27, 2015
    Date of Patent: April 30, 2019
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Paul Joseph Bruinsma, Vladek Kasperchik, Thomas W. Butler
  • THREE-DIMENSIONAL PRINTING
    Publication number: 20190111479
    Abstract: Described herein are compositions, kits, methods, and systems for printing metal three-dimensional objects. In an example, described is a composition for three-dimensional printing comprising: a metal powder build material, wherein the metal powder build material has an average particle size of from about 10 ?m to about 250 ?m; and a binder fluid comprising: an aqueous liquid vehicle, and latex polymer particles dispersed in the aqueous liquid vehicle, wherein the latex polymer particles have an average particle size of from about 10 nm to about 300 nm.
    Type: Application
    Filed: September 7, 2018
    Publication date: April 18, 2019
    Applicant: Hewlett-Packard Development Company, L.P.
    Inventors: Vladek Kasperchik, David Michael Ingle, Cory J Ruud