Patents by Inventor Adekunle OLUBUMMO
Adekunle OLUBUMMO 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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Publication number: 20240359402Abstract: A three-dimensional printing method can include iteratively applying polymer build material as individual layers; based on a three-dimensional object model, selectively jetting an electromagnetic radiation absorber and a translucency-modulating plasticizer onto individual layers of the polymer build material; and exposing the powder bed to electromagnetic energy to selectively fuse portions of individual layers of the polymer build material together to form a three-dimensional object. The polymer build material can include from about 60 wt % to 100 wt % polymeric particles having an average particle size from about 10 ?m to about 150 ?m and a degree of crystallinity from about 2% to about 60%, to a powder bed. At the locations where the polymer build material includes jetted translucency-modulating plasticizer, the three-dimensional object can exhibit an optical transmittance from about 5% to about 80%.Type: ApplicationFiled: July 10, 2024Publication date: October 31, 2024Inventors: Kristopher J. Erickson, Melanie M. Gottwals, Ingeborg Tastl, Aja Hartman, Adekunle Olubummo
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Patent number: 12128612Abstract: Examples of binder agents for a three-dimensional (3D) printing process are disclosed. In an example, the binder agent includes copper nanoparticles and a liquid vehicle. In this example, the liquid vehicle includes an antioxidant, polyethylene glycol hexadecyl ether, and a balance of water. Another example of the binder agent includes stainless steel nanoparticles and a liquid vehicle. In this example, the liquid vehicle includes polyethylene glycol hexadecyl ether, and a balance of water. Still another example of the binder agent includes nickel nanoparticles and a liquid vehicle. The liquid vehicle includes an antioxidant; a symmetric triblock copolymer including poly(ethylene oxide) and poly(propylene oxide), and a balance of water.Type: GrantFiled: August 27, 2018Date of Patent: October 29, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kristopher J. Erickson, John Samuel Dilip Jangam, Adekunle Olubummo
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Publication number: 20240286344Abstract: A fusing agent for three-dimensional printing can include from about 0.5 wt % to about 6 wt % triazine radiation absorber; from about 40 wt % to about 90 wt % organic cosolvent; from about 0.4 wt % to about 4 wt % of a surfactant selected from a polyethylene sorbitol ester, a polyoxyethylene lauryl ether, or a mixture thereof; and water.Type: ApplicationFiled: June 24, 2021Publication date: August 29, 2024Inventors: Kyle Wycoff, Adekunle Olubummo, Krzysztof Nauka, Aja Hartman, Michelle Niu, Emre Hiro Discekici
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Publication number: 20240286345Abstract: A three-dimensional printing kit can include a build material having from about 80 wt % to 100 wt % polymeric particles with a D50 particle size from about 10 ?m to about 150 ?m, and a fusing agent including from about 0.5 wt % to about 20 wt % benzotriazole radiation absorber solubilized in a liquid vehicle.Type: ApplicationFiled: June 24, 2021Publication date: August 29, 2024Inventors: Kyle Wycoff, Krzysztof Nauka, Aja Hartman, Michelle Niu, Adekunle Olubummo, Emre Hiro Discekici
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Publication number: 20240269922Abstract: A three-dimensional printing kit for forming lens elements can include a build material including from about 80 wt % to 100 wt % thermoplastic polyamide elastomeric particles having a D50 particle size from about 10 ?m to about 150 ?m, and a fusing agent including a liquid vehicle and from about 0.5 wt % to about 20 wt % of a UV radiation absorber.Type: ApplicationFiled: June 24, 2021Publication date: August 15, 2024Inventors: Aja Hartman, Michelle Niu, Adekunle Olubummo, Kyle Wycoff, Krzysztof Nauka, Emre Hiro Discekici
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Patent number: 12036734Abstract: A three-dimensional printing method can include iteratively applying polymer build material as individual layers; based on a three-dimensional object model, selectively jetting an electromagnetic radiation absorber and a translucency-modulating plasticizer onto individual layers of the polymer build material; and exposing the powder bed to electromagnetic energy to selectively fuse portions of individual layers of the polymer build material together to form a three-dimensional object. The polymer build material can include from about 60 wt % to 100 wt % polymeric particles having an average particle size from about 10 ?m to about 150 ?m and a degree of crystallinity from about 2% to about 60%, to a powder bed. At the locations where the polymer build material includes jetted translucency-modulating plasticizer, the three-dimensional object can exhibit an optical transmittance from about 5% to about 80%.Type: GrantFiled: July 15, 2019Date of Patent: July 16, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kristopher J. Erickson, Melanie M. Gottwals, Ingeborg Tastl, Aja Hartman, Adekunle Olubummo
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Publication number: 20240116242Abstract: An example of a three-dimensional (3D) printing kit includes a build material composition, an epoxy agent to be applied to at least a portion of the build material composition during 3D printing, and a fusing agent to be applied to the at least the portion of the build material composition during 3D printing. The build material composition includes a polyamide having an amino functional group. The epoxy agent includes an epoxy having an epoxide functional group to react with the amino functional group of the polyamide in the at least the portion. The fusing agent includes an energy absorber.Type: ApplicationFiled: December 1, 2023Publication date: April 11, 2024Inventors: Adekunle Olubummo, Lihua Zhao, Aja Hartman
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Patent number: 11890809Abstract: A 3D printing kit can include a powder bed material comprising from about 80 wt % to 100 wt % polymer particles, a fusing agent to selectively apply to the powder bed material, and a hardener to selectively apply to the powder bed material. The polymeric particles can include a polyalkylene backbone with both ethylene and propylene polymerized monomeric units with from 2 mol % to 15 mol % of the polymerized monomeric units include a grafted side chain having an epoxide moiety. The fusing agent can include water and a radiation absorber that absorbs electromagnetic energy and converts the electromagnetic energy to heat. The hardener can be present in the fusing agent or can be included in a hardening agent that is separate from the fusing agent.Type: GrantFiled: July 17, 2019Date of Patent: February 6, 2024Assignee: Hewlett-Packard Development Company, L.P.Inventors: Kyle Wycoff, Adekunle Olubummo, Maria del Carmen Querol Esparch, Laurent Herschke, Lihua Zhao
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Publication number: 20240017483Abstract: A particulate build material for three-dimensional printing can include from about 80 wt % to 100 wt % polymer particles having an average particle size from about 10 ?m to about 125 ?m. The polymer particles can have a polyolefin polymer backbone with from about 90 mol % to 100 mol % polypropylene polymeric units and from 0 mol % to about 10 mol % polyethylene polymeric units. The polymer particles can further include a crosslinkable component in the form of a maleic anhydride-containing side chain appended to the polyolefin polymer backbone, a thiol-containing side chain appended to the polyolefin polymer backbone, a glycidyl polyhedral oligomeric silsesquioxane compounded with the polyolefin polymer backbone, or a combination thereof.Type: ApplicationFiled: September 15, 2020Publication date: January 18, 2024Inventors: ADEKUNLE OLUBUMMO, LIHUA ZHAO, LAURENT HERSCHKE
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Publication number: 20230391000Abstract: An example of a kit for three-dimensional (3D) printing includes an ultraviolet (UV) light fusing agent. The ultraviolet (UV) light fusing agent includes an aqueous vehicle and a B vitamin or a B vitamin derivative present in an amount that dissolves in the aqueous vehicle. The aqueous vehicle includes a co-solvent, a surfactant, and water. The B vitamin or the B vitamin derivative has absorption at wavelengths ranging from about 340 nm to about 415 nm.Type: ApplicationFiled: October 29, 2020Publication date: December 7, 2023Inventors: KRZYSZTOF NAUKA, ADEKUNLE OLUBUMMO, KYLE WYCOFF, EMRE HIRO DISCEKICI
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Patent number: 11833750Abstract: An example of a three-dimensional (3D) printing kit includes a build material composition, an epoxy agent to be applied to at least a portion of the build material composition during 3D printing, and a fusing agent to be applied to the at least the portion of the build material composition during 3D printing. The build material composition includes a polyamide having an amino functional group. The epoxy agent includes an epoxy having an epoxide functional group to react with the amino functional group of the polyamide in the at least the portion. The fusing agent includes an energy absorber.Type: GrantFiled: September 22, 2018Date of Patent: December 5, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Adekunle Olubummo, Lihua Zhao, Aja Hartman
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Patent number: 11787110Abstract: The present disclosure is drawn to multi-fluid kits for three-dimensional to printing, three-dimensional printing kits, and methods of making three-dimensional printed articles. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent, a first reactive agent, and a second reactive agent. The fusing agent can include water and a radiation absorber. The first reactive agent can include a first liquid vehicle and an epoxy compound having multiple epoxide groups. The second reactive agent can include a second liquid vehicle and an amine compound having multiple amino groups.Type: GrantFiled: February 22, 2023Date of Patent: October 17, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Adekunle Olubummo, Kyle Wycoff, Aja Hartman, Lihua Zhao
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Publication number: 20230203306Abstract: The present disclosure is drawn to multi-fluid kits for three-dimensional to printing, three-dimensional printing kits, and methods of making three-dimensional printed articles. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent, a first reactive agent, and a second reactive agent. The fusing agent can include water and a radiation absorber. The first reactive agent can include a first liquid vehicle and an epoxy compound having multiple epoxide groups. The second reactive agent can include a second liquid vehicle and an amine compound having multiple amino groups.Type: ApplicationFiled: February 22, 2023Publication date: June 29, 2023Inventors: Adekunle Olubummo, Kyle Wycoff, Aja Hartman, Lihua Zhao
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Publication number: 20230067362Abstract: The present disclosure relates to a method of manufacturing a 3D printed object. The method comprises selectively applying a fusing agent onto powder bed material; and exposing at least part of the powder bed material to radiation to fuse at least part of the powder bed material to form a layer of the 3D printed object. The fusing agent and/or a detailing agent is selectively applied to the powder bed material in a predetermined arrangement to form a porous region in the 3D printed object. The 3D printed object is then treated with a modifying agent, such that the modifying agent at least partially penetrates the porous region of the 3D printed object.Type: ApplicationFiled: March 15, 2021Publication date: March 2, 2023Applicant: Hewlett-Packard Development Company, L.P.Inventors: Lihua ZHAO, Agnieszka Maria BRECZEWSKA JAWORSKA, Aja HARTMAN, Adekunle OLUBUMMO, Olivier Maurice Marcel BLANCHOT, Isabelle SANTARELLA ROUGEAUX, Pierre Nicolas Roger PILUSO, Jérôme DELMAS
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Patent number: 11591494Abstract: The present disclosure is drawn to multi-fluid kits for three-dimensional printing, three-dimensional printing kits, and methods of making three-dimensional printed articles. In one example, a multi-fluid kit for three-dimensional printing can include a fusing agent, a first reactive agent, and a second reactive agent. The fusing agent can include water and a radiation absorber. The first reactive agent can include a first liquid vehicle and an epoxy compound having multiple epoxide groups. The second reactive agent can include a second liquid vehicle and an amine compound having multiple amino groups.Type: GrantFiled: March 18, 2019Date of Patent: February 28, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Adekunle Olubummo, Kyle Wycoff, Aja Hartman, Lihua Zhao
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Patent number: 11511479Abstract: A device includes a carriage movable relative to a build pad along a bi-directional travel path and supporting at least a radiation source and an applicator to selectively apply a plurality of fluid agents, including first fluid agents to affect a first material property. A timing and order of operation of the radiation source and the applicator, with the carriage, is to maintain first and second portions of a 3D object under formation within at least one selectable temperature range despite a first total volume of the first fluid agents for application onto the first portion of the 3D object being substantially greater than a second total volume of second fluid agents for application onto the second portion of the 3D object.Type: GrantFiled: July 10, 2017Date of Patent: November 29, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Aja Hartman, Adekunle Olubummo, Kristopher J. Erickson, Lihua Zhao, Howard S. Tom
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Publication number: 20220355543Abstract: A three-dimensional printing method can include iteratively applying polymer build material as individual layers; based on a three-dimensional object model, selectively jetting an electromagnetic radiation absorber and a translucency-modulating plasticizer onto individual layers of the polymer build material; and exposing the powder bed to electromagnetic energy to selectively fuse portions of individual layers of the polymer build material together to form a three-dimensional object. The polymer build material can include from about 60 wt % to 100 wt % polymeric particles having an average particle size from about 10 ?m to about 150 ?m and a degree of crystallinity from about 2% to about 60%, to a powder bed. At the locations where the polymer build material includes jetted translucency-modulating plasticizer, the three-dimensional object can exhibit an optical transmittance from about 5% to about 80%.Type: ApplicationFiled: July 15, 2019Publication date: November 10, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Kristopher J. Erickson, Melanie M. Gottwals, Ingeborg Tastl, Aja Hartman, Adekunle Olubummo
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Patent number: 11383433Abstract: Fusing agent(s) are described herein. In an example, a fusing agent can comprise a metal bis(dithiolene) complex, at least one electron donor compound, a polar aprotic solvent, and water. In some examples, the at least one electron donor compound can comprise at least one hindered amine light stabilizer compound. In some examples, the polar aprotic solvent can be selected from the group consisting of 1-methyl-2-pyrrolidone, 2-pyrrolidone, 1-(2-hydroxyethyl)-2-pyrrolidone, dimethylformamide (DMF), dimethyl sulfoxide (DMSO), and a combination thereof.Type: GrantFiled: April 17, 2017Date of Patent: July 12, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Adekunle Olubummo, Aja Hartman, Lihua Zhao
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Patent number: 11383435Abstract: In an example of a method for three-dimensional (3D) printing, a build material composition is applied to form a build material layer. The build material composition includes a polyamide. The polyamide is selectively melted, based on a 3D object model, in at least a portion of the build material layer to form a molten portion including molten polyamide. An epoxy agent is selectively applied, based on the 3D object model, on the molten portion of the build material layer. The epoxy agent includes a polyfunctional epoxy, which crosslinks the molten polyamide in the molten portion.Type: GrantFiled: April 29, 2019Date of Patent: July 12, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Adekunle Olubummo, Kyle Wycoff, Aja Hartman, Lihua Zhao
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Publication number: 20220127477Abstract: A 3D printing kit can include a powder bed material comprising from about 80 wt % to 100 wt % polymer particles, a fusing agent to selectively apply to the powder bed material, and a hardener to selectively apply to the powder bed material. The polymeric particles can include a polyalkylene backbone with both ethylene and propylene polymerized monomeric units with from 2 mol % to 15 mol % of the polymerized monomeric units include a grafted side chain having an epoxide moiety. The fusing agent can include water and a radiation absorber that absorbs electromagnetic energy and converts the electromagnetic energy to heat. The hardener can be present in the fusing agent or can be included in a hardening agent that is separate from the fusing agent.Type: ApplicationFiled: July 17, 2019Publication date: April 28, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Kyle Wycoff, Adekunle Olubummo, Maria del Carmen Querol Esparch, Laurent Herschke, Lihua Zhao