Patents by Inventor Vladek P. Kasperchik
Vladek P. 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).
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Patent number: 11958110Abstract: In an example of a method for three-dimensional printing, a first amount of a binding agent is selectively applied, based on a 3D object model, to individual build material layers of a particulate build material including metal particles to forming an intermediate structure. The binding agent and/or a void-formation agent is selectively applied, based on the 3D object model, to at least one interior layer of the individual build material layers so that a total amount of the binding agent, the void-formation agent, or both the binding agent and the void-formation agent in the at least one of the individual build material layers is greater than the first amount. This patterns an area that is to contain voids. The intermediate structure is heated to form a 3D structure including a void-containing breakable connection.Type: GrantFiled: October 29, 2018Date of Patent: April 16, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jason C. Hower, Mohammed S. Shaarawi, Vladek P. Kasperchik, James McKinnell, Jennifer L. Wu
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Publication number: 20230286054Abstract: In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes a build material distributor to deposit powder build material on a surface and an agent distribution system to selectively deposit various colored fusing agents and an ultraviolet absorbing agent on the powder build material in a pattern of a layer of a three-dimensional (3D) object to be printed. An irradiation source selectively fuses powder build material with colored fusing agent disposed thereon. The additive manufacturing system also includes a controller. The controller, per location of the layer of the 3D object to be printed 1) determines an energy absorption at the location based on an absorptivity of colored fusing agents deposited at that location and 2) determines an additive manufacturing adjustment to be made at the location to bring the energy absorption at the location to a target level.Type: ApplicationFiled: August 6, 2020Publication date: September 14, 2023Inventors: Vladek P. Kasperchik, Emre Hiro Discekici, Krzysztof Nauka
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Publication number: 20230226613Abstract: In one example in accordance with the present disclosure, an additive manufacturing system is described. The additive manufacturing system includes a build material distributor to deposit metal powder build material and an agent distribution system to selectively deposit a binding agent on the metal powder build material in a pattern of a layer of a three-dimensional (3D) object to be printed. The additive manufacturing system also includes an ultraviolet (UV) energy source. The UV energy source, in a layer-by-layer fashion 1) cures the binding agent to join together metal powder build material with binding agent disposed thereon and 2) evaporates a solvent of the binding agent.Type: ApplicationFiled: June 8, 2020Publication date: July 20, 2023Inventors: Krzysztof NAUKA, Michelle Miao NIU, Vladek P. KASPERCHIK, Emre DISCEKICI
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Publication number: 20230033873Abstract: An apparatus is disclosed to create a breakaway junction for 3D printed parts. Powder is spread along a target zone, such as a build bed. A liquid functional agent is selectively dispensed upon the powder to form a 3D object, a supporting part, and the breakaway junction between them.Type: ApplicationFiled: July 15, 2022Publication date: February 2, 2023Inventors: Mohammed S. Shaarawi, James McKinnell, David A. Champion, Vladek P. Kasperchik
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Publication number: 20220402201Abstract: A three-dimensional (3D) printed object is described. The 3D printed object comprises a polymer. A surface of the 3D printed object comprises the polymer 5 and a UV absorbing colorant. The surface has a surface area roughness Sa (arithmetical mean height) of ?5.0 ?m. A method for preparing a three dimensional (3D) printed object having a smooth surface is also described.Type: ApplicationFiled: December 16, 2019Publication date: December 22, 2022Inventors: KRZYSZTOF NAUKA, VLADEK P KASPERCHIK, INGEBORG TASTL
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Patent number: 11433457Abstract: An apparatus is disclosed to create a breakaway junction for 3D printed parts. Powder is spread along a target zone, such as a build bed. A liquid functional agent is selectively dispensed upon the powder to form a 3D object, a supporting part, and the breakaway junction between them.Type: GrantFiled: May 10, 2018Date of Patent: September 6, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Mohammed S. Shaarawi, James McKinnell, David A. Champion, Vladek P. Kasperchik
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Publication number: 20220119622Abstract: An example of an ultraviolet (UV) light fusing agent for three-dimensional (3D) printing includes a vehicle and a multi-functional antioxidant and UV light absorber dispersed in the vehicle. The vehicle includes water and a water miscible or water soluble organic solvent. The multi-functional antioxidant and UV light absorber includes a metal oxide particle that is to absorb UV radiation having a wavelength within a range from about 330 nm to about 405 nm and a passivating agent complexed with at least a portion of a surface of the metal oxide.Type: ApplicationFiled: April 24, 2020Publication date: April 21, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Emre Hiro Discekici, Shannon Reuben Woodruff, Krzysztof Nauka, Vladek P. Kasperchik
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Publication number: 20210245247Abstract: In an example of a method for three-dimensional printing, a first amount of a binding agent is selectively applied, based on a 3D object model, to individual build material layers of a particulate build material including metal particles to forming an intermediate structure. The binding agent and/or a void-formation agent is selectively applied, based on the 3D object model, to at least one interior layer of the individual build material layers so that a total amount of the binding agent, the void-formation agent, or both the binding agent and the void-formation agent in the at least one of the individual build material layers is greater than the first amount. This patterns an area that is to contain voids. The intermediate structure is heated to form a 3D structure including a void-containing breakable connection.Type: ApplicationFiled: October 29, 2018Publication date: August 12, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Jason C. Hower, Mohammed S. Shaarawi, Vladek P. Kasperchik, James McKinnell, Jennifer L. Wu
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Publication number: 20210146440Abstract: An apparatus is disclosed to create a breakaway junction for 3D printed parts. Powder is spread along a target zone, such as a build bed. A liquid functional agent is selectively dispensed upon the powder to form a 3D object, a supporting part, and the breakaway junction between them.Type: ApplicationFiled: May 10, 2018Publication date: May 20, 2021Inventors: Mohammed S. Shaarawi, James McKinnell, David A. Champion, Vladek P. Kasperchik
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Patent number: 7892619Abstract: A coating composition for optical recording includes a uniform dispersion of polymer particles in a liquid, a quantity of dye particles uniformly dispersed in the liquid, the dye particles being soluble in the polymer but substantially insoluble in the liquid, and a quantity of radiation absorber material adapted to absorb radiation at a wavelength of a laser for optical recording of an image.Type: GrantFiled: December 16, 2006Date of Patent: February 22, 2011Assignee: Hewlett-Packard Development Company, L.P.Inventors: Vladek P. Kasperchik, Michael J. Day, Jayprakash C. Bhatt
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Patent number: 7699461Abstract: Systems and methods for producing permanent ink-jet images are provided. In one embodiment, a system includes a media substrate coated with a porous media coating, wherein the porous media coating having inorganic porous particulates, and wherein at least a portion of the inorganic porous particulates have a first reactive group covalently attached thereto. The system further includes an ink-jet ink containing a dye, wherein the dye includes a second reactive group, and wherein the first reactive group and the second reactive group are configured to react with one another upon contact to form a covalent bond.Type: GrantFiled: April 5, 2007Date of Patent: April 20, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Vladek P Kasperchik, Palitha Wickramanayake, James P Shields, Gary Allan Ungefug
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Patent number: 7700258Abstract: Compositions and methods for production of color images which are developable with improved marking sensitivity and image contrast are disclosed and described. Specifically, a color forming composition can comprise a polymeric activator phase including a polymer matrix and an activator dissolved therein, a color former phase including a color former, and a radiation absorber in thermal contact with the color former phase. Particularly, the color former phase can be finely dispersed within the polymeric activator phase at an average particle size of less than 2 ?m.Type: GrantFiled: January 4, 2005Date of Patent: April 20, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Vladek P. Kasperchik, Makarand P. Gore
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Patent number: 7642218Abstract: An optical recording medium, comprises a substrate, an imaging composition disposed on said substrate, said compound comprising: a matrix, a color-forming agent, and a nucleating agent. The nucleating agent increases the nucleation density of at least one component of the color-forming agent.Type: GrantFiled: February 19, 2009Date of Patent: January 5, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Brian Risch, Michael J Day, Vladek P Kasperchik, William Dorogy
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Patent number: 7638176Abstract: An ink-jet recording media is provided with a sealable coating that is applied to a non-permeable substrate to improve fade resistance, dry time and water resistance. The ink-jet recording media comprises: (a) a non-permeable substrate; (b) a porous basecoat disposed on a surface of the non-permeable substrate, the basecoat comprising at least one pigment, at least one binder, and, optionally, at least one mordant, and adapted to receive a colorant from an ink comprising at least one colorant and a liquid vehicle containing at least one polar solvent; and (c) a porous topcoat. Either (1) the porous basecoat further comprises a solvent-swellable polymer, adapted to swell when contacted by at least one polar solvent of the liquid vehicle, and the porous topcoat is either optional or comprises at least one pigment and at least one binder, or (2) the porous topcoat comprises the solvent-swellable polymer and at least one binder.Type: GrantFiled: June 11, 2003Date of Patent: December 29, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Vladek P Kasperchik, Gary Allan Ungefug
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Publication number: 20090156397Abstract: An optical recording medium, comprises a substrate, an imaging composition disposed on said substrate, said compound comprising: a matrix, a color-forming agent, and a nucleating agent. The nucleating agent increases the nucleation density of at least one component of the color-forming agent.Type: ApplicationFiled: February 19, 2009Publication date: June 18, 2009Inventors: Brian Risch, Michael J. Day, Vladek P. Kasperchik, William Dorogy
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Patent number: 7521106Abstract: An optical recording medium, comprises a substrate, an imaging composition disposed on said substrate, said compound comprising: a matrix, a color-forming agent, and a nucleating agent. The nucleating agent increases the nucleation density of at least one component of the color-forming agent.Type: GrantFiled: August 29, 2005Date of Patent: April 21, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Brian Risch, Michael J Day, Vladek P Kasperchik, William Dorogy
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Patent number: 7435763Abstract: Compositions, methods of using the compositions, and solid freeform fabrication (SFF) systems for producing three-dimensional objects are disclosed. One exemplary composition, among others, includes a basic component, an acidic component, at least one monoacrylate component, a light sensitive initiator, and a polar binder. A polymerization reaction between the at least one monoacrylate component and the light sensitive initiator occurs upon exposure to optical energy. The polar binder includes a viscosity modifier and a surface tension modifier. The polar binder is capable of stimulating a crosslinking reaction between the basic component and the acidic component.Type: GrantFiled: April 2, 2004Date of Patent: October 14, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Isaac Farr, Terry M. Lambright, Vladek P Kasperchik, Christopher Oriakhi, David A Neel
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Patent number: 7422713Abstract: A method for solid free-form fabrication of a three-dimensional object includes depositing a particulate blend in a defined region, the particulate blend including reactive glass ionomer particulates, cross-linkable polyacid particulates including polyvinyl pyrrolidone-co-polyacrylic acid, and nanocomposites, ink-jetting an aqueous phase binder onto a predetermined area of the particulate blend to form hydrated cement in the predetermined area, and hardening the hydrated cement.Type: GrantFiled: October 14, 2003Date of Patent: September 9, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Christopher Oriakhi, Terry M. Lambright, Vladek P Kasperchik, David C Collins, Isaac Farr
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Publication number: 20080145588Abstract: A coating composition for optical recording includes a uniform dispersion of polymer particles in a liquid, a quantity of dye particles uniformly dispersed in the liquid, the dye particles being soluble in the polymer but substantially insoluble in the liquid, and a quantity of radiation absorber material adapted to absorb radiation at a wavelength of a laser for optical recording of an image.Type: ApplicationFiled: December 16, 2006Publication date: June 19, 2008Inventors: Vladek P. Kasperchik, Michael J. Day, Jayprakash C. Bhatt
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Patent number: 7389154Abstract: A three-dimensional object is fabricated from powder. A powder layer is deposited. The powder layer is selectively wetted to hinder movement of the powder. A binder is applied to selected areas of the powder layer to harden the areas of the powder layer. The steps are repeated until the three-dimensional object is fabricated.Type: GrantFiled: October 29, 2004Date of Patent: June 17, 2008Assignee: Hewlett-Packard Development Company, L.P.Inventors: Shawn D Hunter, Vladek P Kasperchik, Jeffrey Allen Nielsen, David C Collins, Tony Cruz-Uribe