Patents by Inventor Stephen BUCHANAN
Stephen BUCHANAN 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: 12084585Abstract: An aqueous energy curable inkjet ink, including (A) a non-photopolymerizable resin, (B) a water-soluble photopolymerizable monomer, (C) a pigment having an average particle size of 50 to 300 nm, and (D) at least 25 wt. % water, based on a total weight of the aqueous energy curable inkjet ink. The water-soluble photopolymerizable monomer (B) is a mixture of (B1) a mono-ethylenically unsaturated monomer and (B2) a poly-ethylenically unsaturated monomer.Type: GrantFiled: January 10, 2020Date of Patent: September 10, 2024Assignee: Kao CorporationInventors: Muslim H. Contractor, Spencer Q. Torline, Stephen J. Cummings, Stephen Buchanan
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Patent number: 11807022Abstract: A method of forming an image on a substrate that includes applying a radiation curable analog ink composition by an analog printing method onto a surface of the substrate to form a coated substrate, applying a radiation curable inkjet ink composition by a digital printing method onto the coated substrate while the radiation curable analog ink composition is still wet to form a hybrid coated substrate, and exposing to electron beam radiation. A method of forming an image on a substrate that includes applying a radiation curable inkjet ink composition by a digital printing method onto a surface of the substrate to form a coated substrate, applying a radiation curable analog ink composition by an analog printing method onto the coated substrate while the radiation curable inkjet ink composition is still wet to form a hybrid coated substrate, and exposing to electron beam radiation.Type: GrantFiled: September 4, 2019Date of Patent: November 7, 2023Assignee: Kao CorporationInventors: Muslim Contractor, Stephen Buchanan, Stephen Cummings
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Publication number: 20230075719Abstract: An aqueous energy curable inkjet ink that includes (A) an emulsified water-insoluble photopolymerizable compound, (B) a resin, which may be (B1) a photopolymerizable resin or (B2) a non-photopolymerizable resin, (C) a polyether macromer-modified poly(meth)acrylate, and (D) at least 25 wt. % water, based on a total weight of the aqueous energy curable inkjet ink. A printed article including the aqueous energy curable inkjet ink in dried and cured form, and a method of forming a printed image with an inkjet printhead are also provided.Type: ApplicationFiled: January 10, 2020Publication date: March 9, 2023Applicant: Kao CorporationInventors: Muslim H. CONTRACTOR, Spencer Q. TORLINE, Stephen J. CUMMINGS, Stephen BUCHANAN
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Publication number: 20230048141Abstract: An aqueous energy curable inkjet ink that includes (A) a non-photopolymerizable resin, (B) a water-soluble photopolymerizable monomer, (C) a pigment having an average particle size of 50 to 300 nm, and (D) at least 25 wt. % water, based on a total weight of the aqueous energy curable inkjet ink. A printed article including the aqueous energy curable inkjet ink in dried and cured form, and a method of forming a printed image with an inkjet printhead are also provided.Type: ApplicationFiled: January 10, 2020Publication date: February 16, 2023Applicant: Kao CorporationInventors: Muslim H. CONTRACTOR, Spencer Q. TORLINE, Stephen J. CUMMINGS, Stephen BUCHANAN
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Patent number: 11479684Abstract: A radiation curable inkjet ink composition that includes (A) a mono-ethylenically unsaturated oligomer, (B) a mono-ethylenically unsaturated monomer, and (C) a solvent, wherein the radiation curable inkjet ink composition is substantially free of a photoinitiator and wherein a total weight of the mono-ethylenically unsaturated oligomer (A) is less than or equal to the total weight of the mono-ethylenically unsaturated monomer (B). A printed article including the radiation curable inkjet ink composition in cured form, and a method of forming an image with a thermal inkjet printhead are also provided.Type: GrantFiled: April 17, 2019Date of Patent: October 25, 2022Assignee: Kao CorporationInventors: Muslim Contractor, Stan Nowacki, Stephen Buchanan, Stephen Cummings
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Patent number: 11312170Abstract: A method of forming an image on a substrate that involves applying a radiation curable white inkjet ink composition comprising a radiation curable anti-wrinkle agent onto a surface of the substrate, exposing the radiation curable white inkjet ink composition to UV light having a wavelength of less than 200 nm to pin the radiation curable white inkjet ink composition and form a coated substrate having an arithmetical mean surface roughness value Ra of less than or equal to 2.0 micrometers and an arithmetical mean surface roughness depth Rz of less than or equal to 10.0 micrometers, applying a radiation curable CMYK inkjet ink composition onto the coated substrate, and curing with electron beam radiation.Type: GrantFiled: April 4, 2019Date of Patent: April 26, 2022Assignee: Kao CorporationInventors: Muslim Contractor, Stephen Buchanan, Stephen Cummings
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Publication number: 20220111673Abstract: A method of forming an image on a substrate that includes applying a radiation curable analog ink composition by an analog printing method onto a surface of the substrate to form a coated substrate, applying a radiation curable inkjet ink composition by a digital printing method onto the coated substrate while the radiation curable analog ink composition is still wet to form a hybrid coated substrate, and exposing to electron beam radiation. A method of forming an image on a substrate that includes applying a radiation curable inkjet ink composition by a digital printing method onto a surface of the substrate to form a coated substrate, applying a radiation curable analog ink composition by an analog printing method onto the coated substrate while the radiation curable inkjet ink composition is still wet to form a hybrid coated substrate, and exposing to electron beam radiation.Type: ApplicationFiled: September 4, 2019Publication date: April 14, 2022Applicant: Kao CorporationInventors: Muslim CONTRACTOR, Stephen BUCHANAN, Stephen CUMMINGS
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Patent number: 11193027Abstract: A radiation curable ink composition that includes (A) a mono-ethylenically unsaturated oligomer, (B) a mono-ethylenically unsaturated monomer, and (C) an acrylate ester of a carboxylic acid ester and which is substantially free of a photoinitiator. A printed article including the radiation curable ink composition in cured form, and a method of forming an image with the radiation curable ink composition are also provided.Type: GrantFiled: March 26, 2018Date of Patent: December 7, 2021Assignee: Kao CorporationInventors: Muslim Contractor, Stephen Cummings, Stephen Buchanan
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Publication number: 20210040338Abstract: A radiation curable inkjet ink composition that includes (A) a mono-ethylenically unsaturated oligomer, (B) a mono-ethylenically unsaturated monomer, and (C) a solvent, wherein the radiation curable inkjet ink composition is substantially free of a photoinitiator and wherein a total weight of the mono-ethylenically unsaturated oligomer (A) is less than or equal to the total weight of the mono-ethylenically unsaturated monomer (B). A printed article including the radiation curable inkjet ink composition in cured form, and a method of forming an image with a thermal inkjet printhead are also provided.Type: ApplicationFiled: April 17, 2019Publication date: February 11, 2021Applicant: Kao CorporationInventors: Muslim CONTRACTOR, Stan NOWACKI, Stephen BUCHANAN, Stephen CUMMINGS
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Publication number: 20200407574Abstract: A method of forming an image on a substrate that involves applying a radiation curable white inkjet ink composition comprising a radiation curable anti-wrinkle agent onto a surface of the substrate, exposing the radiation curable white inkjet ink composition to UV light having a wavelength of less than 200 nm to pin the radiation curable white inkjet ink composition and form a coated substrate having an arithmetical mean surface roughness value Ra of less than or equal to 2.0 micrometers and an arithmetical mean surface roughness depth Rz of less than or equal to 10.0 micrometers, applying a radiation curable CMYK inkjet ink composition onto the coated substrate, and curing with electron beam radiation.Type: ApplicationFiled: April 4, 2019Publication date: December 31, 2020Applicant: Kao CorporationInventors: Muslim CONTRACTOR, Stephen BUCHANAN, Stephen CUMMINGS
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Publication number: 20190382602Abstract: A radiation curable ink composition that includes (A) a mono-ethylenically unsaturated oligomer, (B) a mono-ethylenically unsaturated monomer, and (C) an acrylate ester of a carboxylic acid ester and which is substantially free of a photoinitiator. A printed article including the radiation curable ink composition in cured form, and a method of forming an image with the radiation curable ink composition are also provided.Type: ApplicationFiled: March 26, 2018Publication date: December 19, 2019Applicant: Kao CorporationInventors: Muslim CONTRACTOR, Stephen CUMMINGS, Stephen BUCHANAN