Patents by Inventor Jayprakash C. Bhatt
Jayprakash C. Bhatt 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: 20230042522Abstract: An example of an inkjet composition includes a colorant, a density modifier selected from the group consisting of a triiodo amino derivative of isophthalic acid, a mixture of polysucrose and sodium diatrizoate, colloidal silica particles coated with polyvinylpyrrolidone, and combinations thereof; and an aqueous vehicle. The inkjet composition may be inkjet printed on a substrate, using a thermal or piezoelectric printer.Type: ApplicationFiled: July 23, 2021Publication date: February 9, 2023Inventors: Jayprakash C. Bhatt, Marcos A. Barreto Caban, Sundar Vasudevan
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Publication number: 20210323333Abstract: Imaging medium includes an image-receiving substrate including a color-forming layer, a donor ribbon attached to the image-receiving substrate and including a color layer, and a repeated pattern. The repeated pattern is defined by a portion of each of the color-forming layer and color layer. A repeat of the pattern includes at least three adjacent colored stripes including a cyan or cyan-forming stripe, a magenta or magenta-forming stripe, and a yellow or yellow-forming stripe. A first of the at least three adjacent stripes is a color-forming stripe in the color-forming layer. A second of the at least three adjacent stripes is a colored stripe in the color layer. A third of the at least three adjacent stripes is either a second color-forming stripe in the color-forming layer or a second colored stripe in the color layer of the donor ribbon.Type: ApplicationFiled: August 30, 2018Publication date: October 21, 2021Inventors: Jayprakash C. Bhatt, Michael W. Cumbie
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Publication number: 20210283936Abstract: The present disclosure is drawn to imaging media. In one example, an imaging medium includes a substrate, a color layer on the substrate, and an opaque porous concealing layer over the color layer. The color layer includes a pattern of color regions, wherein individual color regions include multiple adjacently-applied colors. The opaque porous concealing layer has a coat weight from 2 gsm to 10 gsm. The opaque porous concealing layer includes transparent inorganic particles having a refractive index from 1.3 to 3, and void spaces between the transparent inorganic particles are occupied by air.Type: ApplicationFiled: December 6, 2018Publication date: September 16, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Christopher Toles, Michael W. Cumbie, Jayprakash C. Bhatt, Juan Carlos Vives
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Publication number: 20210277264Abstract: An ink composition can include water, from 1 wt % to 6 wt % organic pigment, from 0.1 wt % to 3 wt % styrene acrylic resin dispersant having an acid number ranging from 100 mg KOH/g to 160 mg KOH/g, and from 1 wt % to less than 5 wt % organic co-solvent.Type: ApplicationFiled: June 11, 2018Publication date: September 9, 2021Inventors: Jayprakash C. Bhatt, Kellie Seetho Dalby, Tayo Olu Yolemi
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Publication number: 20210269661Abstract: An ink composition can include water, from 1 wt % to less than 5 wt % organic solvent, from 0.3 wt % to 2 wt % of a graft polyurethane copolymer, and from 1 wt % to 6 wt % pigment.Type: ApplicationFiled: June 11, 2018Publication date: September 2, 2021Inventors: Jayprakash C. Bhatt, Kellie Seetho Dalby, Tayo Olu Yolemi
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Patent number: 11034170Abstract: In an example of recording medium identification method, a digital image of a line or a dot printed on a recording medium with a printer is captured by an image sensor. From the digital image, a microprocessor (operatively connected to the image sensor), digitally measures a width of the line, a diameter of the dot, an area of the dot, or a perimeter of the dot. The microprocessor identifies a type of the recording medium based on the width, the diameter, the area, or the perimeter. In response to the identification of the type of the recording medium, a print setting for the type of the recording medium is selected.Type: GrantFiled: July 13, 2017Date of Patent: June 15, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jayprakash C. Bhatt, Matthew Thornberry
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Patent number: 10975256Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by an ionic polymeric dispersant associated with pigment, from 0.5 wt % to 5 wt % non-ionic polymeric binder having a weight average molecular weight from 400 Mw to 20,000 Mw, and from 0.1 wt % to 1.5 wt % monovalent salt.Type: GrantFiled: September 14, 2017Date of Patent: April 13, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Milton Neill Jackson, Jayprakash C. Bhatt, Larrie A. Deardurff
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Patent number: 10974513Abstract: An example of an ink supply includes an ink chamber containing a liquid ink, a salt chamber containing a salt solution, a separator positioned between the liquid ink and the salt solution, and a release mechanism. The separator completely separates the liquid ink from the salt solution prior to the release mechanism being triggered. The release mechanism has a triggered position and a retracted position. The triggered position causes the separator to at least partially open, and enables the liquid ink and the salt solution to be combined to form a mixture.Type: GrantFiled: July 6, 2017Date of Patent: April 13, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Jayprakash C. Bhatt, Larrie A. Deardurff, Milton Neill Jackson
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Patent number: 10920095Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by a polymer dispersant associated with pigment, from 0.5 wt % to 5 wt % polymeric binder particles having an average particle size from 25 nm to 500 nm and a D10 particle size of 20 nm or more, and from 0.1 wt % to 1.5 wt % monovalent salt.Type: GrantFiled: July 12, 2017Date of Patent: February 16, 2021Assignee: Hewlett-Packard Development Company, L.P.Inventors: Milton Neill Jackson, Jayprakash C. Bhatt, Larrie Deardurff
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Publication number: 20210039401Abstract: An example of an imaging medium includes an image-receiving substrate, a donor ribbon attached to the image-receiving substrate, and a registration mark. The donor ribbon includes a donor ribbon substrate, a release layer disposed on the donor ribbon substrate, and a color layer disposed on the release layer. The color layer includes a repeated pattern. A repeat of the pattern includes at least adjacent color stripes including a cyan stripe, a magenta stripe, and a yellow stripe, or a grid of four color sections including i) a colored section selected from the group consisting of black, cyan, light cyan, yellow, magenta, and light magenta, ii) a cyan section, iii) a magenta section, and iv) a yellow section. The color layer is in contact with the image-receiving substrate.Type: ApplicationFiled: April 13, 2018Publication date: February 11, 2021Inventors: Jayprakash C. BHATT, Michael W. CUMBIE
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Publication number: 20210039414Abstract: An example of an imaging medium includes an image-receiving substrate, a donor ribbon attached to the image-receiving substrate, and a registration mark. The donor ribbon includes a donor ribbon substrate, a release layer disposed on the donor ribbon substrate, and a color-forming layer disposed on the release layer. The color-forming layer includes a repeated pattern. A repeat of the pattern includes at least three adjacent color-forming stripes including a cyan-forming stripe, a magenta-forming stripe, and a yellow-forming stripe, or a grid of four color-forming sections including i) a color-forming section selected from the group consisting of black-forming, cyan-forming, light cyan-forming, yellow-forming, magenta-forming, and light magenta-forming, ii) a cyan-forming section, iii) a magenta-forming section, and iv) a yellow-forming section. The color-forming layer is in contact with the image-receiving substrate.Type: ApplicationFiled: April 13, 2018Publication date: February 11, 2021Inventors: Jayprakash C. Bhatt, Michael W. Cumbie
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Publication number: 20210023867Abstract: An example of an imaging medium includes a substrate, a color-forming layer on the substrate, and a registration mark. The color-forming layer includes a repeated pattern. A repeat of the pattern includes four adjacent color-forming stripes including a black-forming stripe, a cyan-forming stripe, a magenta-forming stripe, and a yellow-forming stripe, or a grid of four color-forming sections including i) a color-forming section selected from the group consisting of black-forming, cyan-forming, light cyan-forming, yellow-forming, magenta-forming, and light magenta-forming, ii) a cyan-forming section, iii) a magenta-forming section, and iv) a yellow-forming section.Type: ApplicationFiled: April 13, 2018Publication date: January 28, 2021Inventors: Jayprakash C. Bhatt, Michael W. Cumbie
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Publication number: 20210008890Abstract: An example of an ink supply includes an ink chamber containing a liquid ink, a salt chamber containing a salt solution, a separator positioned between the liquid ink and the salt solution, and a release mechanism. The separator completely separates the liquid ink from the salt solution prior to the release mechanism being triggered. The release mechanism has a triggered position and a retracted position. The triggered position causes the separator to at least partially open, and enables the liquid ink and the salt solution to be combined to form a mixture.Type: ApplicationFiled: July 6, 2017Publication date: January 14, 2021Inventors: Jayprakash C. Bhatt, Larrie A. Deardurff, Milton Neill Jackson
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Patent number: 10723123Abstract: The present disclosure is drawn to an ink composition including an aqueous liquid vehicle, from 2 wt % to 7 wt % self-dispersed pigment dispersed in the aqueous liquid vehicle, and from 0.5 wt % to 5 wt % acidic polymeric binder particles having an acid number from 30 to 200 and a particle size from 1 nm to 100 nm dispersed in the aqueous liquid vehicle. The ink composition can also include from 0.1 wt % to 0.75 wt % monovalent salt solubilized in the aqueous liquid vehicle. The self-dispersed pigment to monovalent salt weight ratio in the ink composition can be from 3:1 to 50:1, for example.Type: GrantFiled: September 15, 2017Date of Patent: July 28, 2020Assignee: Hewlett-Packard Development Company, L.P.Inventors: Larrie Deardurff, Jayprakash C. Bhatt, Milton Neill Jackson
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Publication number: 20200056059Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by an ionic polymeric dispersant associated with pigment, from 0.5 wt % to 5 wt % non-ionic polymeric binder having a weight average molecular weight from 400 Mw to 20,000 Mw, and from 0.1 wt % to 1.5 wt % monovalent salt.Type: ApplicationFiled: September 14, 2017Publication date: February 20, 2020Applicant: Hewlett-Packard Development Company, L.P.Inventors: Milton Neill JACKSON, Jayprakash C. BHATT, Larrie A. DEARDURFF
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Publication number: 20200047523Abstract: In an example of recording medium identification method, a digital image of a line or a dot printed on a recording medium with a printer is captured by an image sensor. From the digital image, a microprocessor (operatively connected to the image sensor), digitally measures a width of the line, a diameter of the dot, an area of the dot, or a perimeter of the dot. The microprocessor identifies a type of the recording medium based on the width, the diameter, the area, or the perimeter. In response to the identification of the type of the recording medium, a print setting for the type of the recording medium is selected.Type: ApplicationFiled: July 13, 2017Publication date: February 13, 2020Inventors: Jayprakash C. Bhatt, Matthew Thornberry
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Publication number: 20200017701Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 1 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by a polymer dispersant associated with pigment, from 0.5 wt % to 5 wt % polymeric binder particles having an average particle size from 25 nm to 500 nm and a D10 particle size of 20 nm or more, and from 0.1 wt % to 1.5 wt % monovalent salt.Type: ApplicationFiled: July 12, 2017Publication date: January 16, 2020Applicant: Hewlett-Packard Development Company, L.P.Inventors: Milton Neill JACKSON, Jayprakash C. BHATT, Larrie DEARDURFF
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Publication number: 20190249023Abstract: The present disclosure is drawn to an ink composition including an aqueous liquid vehicle, from 2 wt % to 7 wt % self-dispersed pigment dispersed in the aqueous liquid vehicle, and from 0.5 wt % to 5 wt % acidic polymeric binder particles having an acid number from 30 to 200 and a particle size from 1 nm to 100 nm dispersed in the aqueous liquid vehicle. The ink composition can also include from 0.1 wt % to 0.75 wt % monovalent salt solubilized in the aqueous liquid vehicle. The self-dispersed pigment to monovalent salt weight ratio in the ink composition can be from 3:1 to 50:1, for example.Type: ApplicationFiled: September 15, 2017Publication date: August 15, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Larrie Deardurff, Jayprakash C. BHATT, Milton Neill JACKSON
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Publication number: 20190185692Abstract: The present disclosure is drawn to ink compositions including from 30 wt % to 75 wt % water, an organic co-solvent system, from 0.1 wt % to 3 w % nonionic surfactant, and from 3 wt % to 9 wt % pigment that is dispersed by separate polymer dispersant. The organic co-solvent system can include, based on the ink composition content, from 15 wt % to 50 wt % of a first solvent portion of high dielectric constant co-solvent with a dielectric constant greater than 30 ?, and from 2 wt % to 15 wt % of a second solvent portion of low dielectric constant co-solvent with a dielectric constant from 1 ? to 30 ?.Type: ApplicationFiled: October 4, 2016Publication date: June 20, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Milton Neill JACKSON, Larrie DEARDURFF, Jayprakash C. Bhatt
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Publication number: 20190153251Abstract: The present disclosure is drawn to ink compositions including an aqueous liquid vehicle, from 3 wt % to 9 wt % pigment dispersed in the aqueous liquid vehicle by a polymer dispersant associated with pigment, and from 0.25 wt % to 1.2 wt % monovalent salt. The pigment to monovalent salt weight ratio in the ink composition can be from 5:1 to 25:1.Type: ApplicationFiled: October 6, 2016Publication date: May 23, 2019Applicant: Hewlett-Packard Development Company, L.P.Inventors: Jayprakash C. BHATT, Milton Neill JACKSON, Larrie DEARDURFF