Patents by Inventor Alexandra Artemis Papadakis
Alexandra Artemis Papadakis 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: 7874646Abstract: A MEMS vapor bubble generator includes a chamber for holding liquid; and a heater positioned in the chamber, the heater being formed using a sputtering technique. The heater is formed from a superalloy material. The superalloy material of the heater is in direct contact with the liquid, without any intervening protective coating. The superalloy has a crystalline structure with a grain size less than 100 nano-meters. The superalloy is MCrAlX, where M is one or more of Ni, Co, Fe with M contributing at least 50% by weight, Cr contributing between 8% and 35% by weight, Al contributing more than zero but less than 8% by weight, and X contributing less than 25% by weight, with X consisting of zero or more other elements, preferably including but not limited to Mo, Re, Ru, Ti, Ta, V, W, Nb, Zr, B, C, Si, Y, Hf.Type: GrantFiled: December 20, 2009Date of Patent: January 25, 2011Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Roger Mervyn Lloyd Foote, Angus John North, Jennifer Mia Fishburn, Paul David Lunsmann, Alexandra Artemis Papadakis, Channarayapatna Shankar Lakshmi, Frederik Jacobus Clous, Matthew Stewart Walker, Samuel George Mallinson, Paul Justin Reichl
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Patent number: 7785502Abstract: A method of enabling entry of data into a computer system via a printed form is provided. The method comprises the steps of: (i) providing the printed form, the form containing human-readable information and machine-readable coded data, the coded data being indicative of an identity of the form and of a plurality of locations on the form; (ii) operatively positioning a sensing device relative to the form; (iii) sensing at least some of the coded data; (iv) generating indicating data using the sensed coded data, the indicating data being indicative of the identity of the form and the position of the sensing device relative to the form; and (v) sending the indicating data to a computer system, thereby enabling the computer system to identify the data for entry. The coded data comprises an ink composition containing an IR-absorbing dye and a singlet oxygen quencher.Type: GrantFiled: August 27, 2007Date of Patent: August 31, 2010Assignee: Silverbrook Research Pty LtdInventors: Damon Donald Ridley, Kia Silverbrook, Lachlan Everett Hall, Paul Lapstun, Alexandra Artemis Papadakis, Scott Matthew Starling, Simone Charlotte Vonwiller
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Patent number: 7784915Abstract: A MEMS vapor bubble generator with a chamber for holding liquid and a heater positioned in the chamber for heating the liquid above its bubble nucleation point to form a vapor bubble; wherein, the heater has a microstructure with a grain size less than 100 nanometers.Type: GrantFiled: July 10, 2006Date of Patent: August 31, 2010Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Roger Mervyn Lloyd Foote, Angus John North, Jennifer Mia Fishburn, Paul David Lunsmann, Alexandra Artemis Papadakis, Channarayapatna Shankar Lakshmi, Frederik Jacobus Crous, Matthew Stewart Walker, Samuel George Mallinson, Paul Justin Reichl
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Publication number: 20100128090Abstract: A MEMS vapor bubble generator includes a chamber for holding liquid; and a heater positioned in the chamber, the heater being formed using a sputtering technique. The heater is formed from a superalloy material. The superalloy material of the heater is in direct contact with the liquid, without any intervening protective coating. The superalloy has a crystalline structure with a grain size less than 100 nano-metres. The superalloy is MCrAlX, where M is one or more of Ni, Co, Fe with M contributing at least 50% by weight, Cr contributing between 8% and 35% by weight, Al contributing more than zero but less than 8% by weight, and X contributing less than 25% by weight, with X consisting of zero or more other elements, preferably including but not limited to Mo, Re, Ru, Ti, Ta, V, W, Nb, Zr, B, C, Si, Y, Hf.Type: ApplicationFiled: December 20, 2009Publication date: May 27, 2010Inventors: Kia Silverbrook, Roger Mervyn Lloyd Foote, Angus John North, Jennifer Mia Fishburn, Paul David Lunsmann, Alexandra Artemis Papadakis, Channarayapatna Shankar Lakshmi, Frederik Jacobus Crous, Matthew Stewart Walker, Samuel George Mallinson, Paul Justin Reichl
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Patent number: 7654645Abstract: A MEMS vapor bubble generator with a chamber for holding liquid and a heater positioned in the chamber for heating the liquid above its bubble nucleation point to form a vapour bubble; wherein, the heater is formed from a superalloy.Type: GrantFiled: July 10, 2006Date of Patent: February 2, 2010Assignee: Silverbrook Research Pty LtdInventors: Kia Silverbrook, Roger Mervyn Lloyd Foote, Angus John North, Jennifer Mia Fishburn, Paul David Lunsmann, Alexandra Artemis Papadakis, Channarayapatna Shankar Lakshmi, Frederik Jacobus Crous, Matthew Stewart Walker, Samuel George Mallinson, Paul Justin Reichl
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Publication number: 20090121031Abstract: A method of minimizing visible coloration of a substrate having an IR-absorbing dye disposed thereon. The method includes preselecting the dye such that it includes a moiety for reducing intermolecular interactions between adjacent dye molecules.Type: ApplicationFiled: November 18, 2008Publication date: May 14, 2009Inventors: Lachlan Everett Hall, Alexandra Artemis Papadakis, Damon Donald Ridley, Scott Matthew Starling, Simone Charlotte Vonwiller, Kia Silverbrook, Paul Lapstun
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Patent number: 7465342Abstract: A method of minimizing absorption of visible light in an ink composition. The ink composition includes an IR-absorbing metal-dithiolene dye. The method includes preselecting the dye such that it includes a moiety for reducing intermolecular interactions between adjacent dye molecules. The method is suitable for use in connection with page-based interactive systems employing invisible inks.Type: GrantFiled: April 2, 2004Date of Patent: December 16, 2008Assignee: Silverbrook Research Pty LtdInventors: Lachlan Everett Hall, Alexandra Artemis Papadakis, Damon Donald Ridley, Scott Matthew Starling, Simone Charlotte Vonwiller, Kia Silverbrook, Paul Lapstun
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Publication number: 20080177792Abstract: A method of enabling entry of data into a computer system via a printed form is provided. The method comprises the steps of: (i) providing the printed form, the form containing human-readable information and machine-readable coded data, the coded data being indicative of an identity of the form and of a plurality of locations on the form; (ii) operatively positioning a sensing device relative to the form; (iii) sensing at least some of the coded data; (iv) generating indicating data using the sensed coded data, the indicating data being indicative of the identity of the form and the position of the sensing device relative to the form; and (v) sending the indicating data to a computer system, thereby enabling the computer system to identify the data for entry. The coded data comprises an ink composition containing an IR-absorbing dye and a singlet oxygen quencher.Type: ApplicationFiled: August 27, 2007Publication date: July 24, 2008Inventors: Damon Donald Ridley, Kia Silverbrook, Lachlan Everett Hall, Paul Lapstun, Alexandra Artemis Papadakis, Scott Matthew Starling, Simone Charlotte Vonwiller
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Patent number: 7282164Abstract: This application relates to a stabilized ink composition comprising an IR-absorbing metal-dithiolene dye and a singlet oxygen quencher. Ink compositions of this type are especially suitable for use in netpage and Hyperlabel systems.Type: GrantFiled: April 2, 2004Date of Patent: October 16, 2007Assignee: Silverbrook Research Pty Ltd.Inventors: Lachlan Everett Hall, Alexandra Artemis Papadakis, Damon Donald Ridley, Scott Matthew Starling, Simone Charlotte Vonwiller, Kia Silverbrook, Paul Lapstun
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Patent number: 7278727Abstract: The present invention provides a method of minimizing absorption of visible light in an IR-absorbing dye comprising reducing intermolecular interactions between adjacent dye molecules. The method is particularly suitable for use in connection with netpage and Hyperlabel systems.Type: GrantFiled: August 9, 2004Date of Patent: October 9, 2007Assignee: Silverbrook Research Pty LtdInventors: Simone Charlotte Vonwiller, Scott Matthew Starling, Damon Donald Ridley, Lachlan Everett Hall, Simon Fielder, Alexandra Artemis Papadakis, Graciel Gonzaga, Kia Silverbrook, Paul Lapstun
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Patent number: 7204941Abstract: The present invention provides an IR-absorbing dye suitable for formulating a water-based inkjet ink, said dye being of formula (I): wherein: M is selected from Ni, Pd or Pt; R10 and R11 are independently selected from C1-30 hydrocarbyl, or R10 and R11 together are joined to form a C2-30 hydrocarbylene group; R12 and R13 are independently selected from C1-30 hydrocarbyl, or R12 and R13 together are joined to form a C2-30 hydrocarbylene group; wherein at least one of R10, R11, R12 or R13 comprises a hydrophilic group. Dyes of this type are especially suitable for use in NETPAGE and Hyperlabel systems.Type: GrantFiled: April 2, 2004Date of Patent: April 17, 2007Assignee: Silverbrook Research Pty LtdInventors: Lachlan Everett Hall, Alexandra Artemis Papadakis, Damon Donald Ridley, Scott Matthew Starling, Simone Charlotte Vonwiller, Kia Silverbrook, Paul Lapstun
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Publication number: 20040207700Abstract: This application relates to a stabilized ink composition comprising an IR-absorbing metal-dithiolene dye and a singlet oxygen quencher.Type: ApplicationFiled: April 2, 2004Publication date: October 21, 2004Applicant: Silverbrook Research Pty Ltd.Inventors: Lachlan Everett Hall, Alexandra Artemis Papadakis, Damon Donald Ridley, Scott Matthew Starling, Simone Charlotte Vonwiller, Kia Silverbrook, Paul Lapstun
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Publication number: 20040196344Abstract: The present invention provides an IR-absorbing dye suitable for formulating a water-based inkjet ink, said dye being of formula (I): 1Type: ApplicationFiled: April 2, 2004Publication date: October 7, 2004Applicant: Silverbrook Research Pty LtdInventors: Lachlan Everett Hall, Alexandra Artemis Papadakis, Damon Donald Ridley, Scott Matthew Starling, Simone Charlotte Vonwiller, Kia Silverbrook, Paul Lapstun
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Publication number: 20040196345Abstract: The present invention provides a method of minimizing absorption of visible light in an ink composition comprising an IR-absorbing metal-dithiolene dye, comprising preselecting said dye such that it includes at least one moiety for reducing intermolecular interactions between adjacent dye molecules.Type: ApplicationFiled: April 2, 2004Publication date: October 7, 2004Applicant: Silverbrook Research Pty LtdInventors: Lachlan Everett Hall, Alexandra Artemis Papadakis, Damon Donald Ridley, Scott Matthew Starling, Simone Charlotte Vonwiller, Kia Silverbrook, Paul Lapstun