Patents by Inventor Domenic Santilli
Domenic Santilli 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: 6166105Abstract: A process for making an ink jet ink comprising:a) providing a dispersion containing a pigment, a hydrocarbon carrier and a polyamine/fatty acid condensation polymer dispersant;b) mixing the pigment dispersion with rigid milling media less than 100 .mu.m;c) introducing the mixture of step (b) into a mill;d) milling the mixture from step (c) until the pigment particle size is below about 100 nanometers;e) separating the milling media from the mixture milled in step (d); andf) diluting the mixture from step (e) to obtain an ink jet ink having a pigment concentration suitable for ink jet printers.Type: GrantFiled: October 13, 1998Date of Patent: December 26, 2000Assignee: Eastman Kodak CompanyInventors: Domenic Santilli, Charles E. Romano, Jr., David Erdtmann
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Patent number: 6156473Abstract: A nonconductive toner composition comprising monodisperse spherical particles includes a binder polymer, a charge control agent, and an aliphatic acid or aliphatic amide uniformly distributed in the particles and present in an amount of 2.5 to 30% by weight of the toner composition.Type: GrantFiled: June 12, 1998Date of Patent: December 5, 2000Assignee: Eastman Kodak CompanyInventors: Dinesh Tyagi, David E. Tyminski, Leo G. Proctor, Domenic Santilli
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Patent number: 6053438Abstract: A process for making an ink jet ink comprising:a) providing a dispersion containing a pigment, a hydrocarbon carrier, and a polyamine/fatty acid condensation polymer dispersant;b) mixing the pigment dispersion with rigid milling media less than 100 .mu.Type: GrantFiled: October 13, 1998Date of Patent: April 25, 2000Assignee: Eastman Kodak CompanyInventors: Charles E. Romano, Jr., Karen E. Maskasky, Domenic Santilli
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Patent number: 6008270Abstract: A liquid ink jet ink wherein said ink is non-gelling and comprises a carrier, a pigment and a solid block copolymer of ethylene oxide and propylene oxide having a structure (A) and (B) defined herein.Type: GrantFiled: September 25, 1997Date of Patent: December 28, 1999Assignee: Eastman Kodak CompanyInventor: Domenic Santilli
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Patent number: 5837044Abstract: A liqiud ink jet ink comprising a carrier, a pigment, a dispersant and a polyoxyethylene fatty ether additive.Type: GrantFiled: August 13, 1996Date of Patent: November 17, 1998Assignee: Eastman Kodak CompanyInventors: Domenic Santilli, Ravi Sharma
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Patent number: 5738716Abstract: A color ink jet ink set for color printing is disclosed. The set comprises:(a) a first ink comprises a carrier and a bridged aluminum phthalocyanine pigment as a cyan colorant;(b) a second ink comprising a carrier and a quinacridone pigment as a magenta colorant; and(c) a third ink comprising a carrier and a non-benzidine yellow pigment.A fourth ink comprising pigment black 7 may also be included in the set.Type: GrantFiled: August 20, 1996Date of Patent: April 14, 1998Assignee: Eastman Kodak CompanyInventors: Domenic Santilli, Douglas Eugene Bugner, Alexandra DeLauro Bermel, David Joseph Oldfield
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Patent number: 5716436Abstract: An ink jet ink comprising a carrier, a pigment and a water dispersible polyester ionomer having an absolute molecular weight from 750 to 8000 and a glass transition temperature from 10.degree. to 80.degree. C.Type: GrantFiled: November 30, 1995Date of Patent: February 10, 1998Assignee: Eastman Kodak CompanyInventors: Louis Joseph Sorriero, Domenic Santilli
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Patent number: 5679142Abstract: The invention provides an ink jet pigment set comprising a magenta pigment, a yellow pigment, and a cyan pigment wherein the normalized spectral transmission density distribution curve of the cyan pigment has a density between 0.66 and 0.94 at 600 nm and a density between 0.83 and 1.0 at 610 nm. Such a pigment set enables an increase in the color gamut obtainable for ink jet imaging.Type: GrantFiled: August 20, 1996Date of Patent: October 21, 1997Assignee: Eastman Kodak CompanyInventors: Elizabeth McInerney, David Joseph Oldfield, Douglas Eugene Bugner, Alexandra DiLauro Bermel, Domenic Santilli
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Patent number: 5679141Abstract: The invention provides an ink jet pigment set comprising a magenta pigment, a yellow pigment, and a cyan pigment wherein the normalized spectral transmission density distribution curve of the magenta pigment has a density between 0.25 and 0.93 at 520 nm, a density between 0.9 and 1.0 at 540 nm, and a density between 0.9 and 1.0 at 560 nm. Such a pigment set enables an increase in the color gamut obtainable for ink jet imaging.Type: GrantFiled: August 20, 1996Date of Patent: October 21, 1997Assignee: Eastman Kodak CompanyInventors: Elizabeth McInerney, David Joseph Oldfield, Douglas Eugene Bugner, Alexandra DiLauro Bermel, Domenic Santilli
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Patent number: 5679139Abstract: The invention provides a pigment set comprising a magenta pigment, a yellow pigment, and a cyan pigment wherein the normalized spectral transmission density distribution curve of the cyan pigment has a density between 0.66 and 0.94 at 600 nm and a density between 0.83 and 1.0 at 610 nm, and the magenta pigment has a density between 0.25 and 0.93 at 520 nm, a density between 0.9 and 1.0 at 540 nm, and a density between 0.9 and 1.0 at 560 nm. Such a pigment set enables an increase in the color gamut available for imaging.Type: GrantFiled: August 20, 1996Date of Patent: October 21, 1997Assignee: Eastman Kodak CompanyInventors: Elizabeth McInerney, David Joseph Oldfield, Douglas Eugene Bugner, Alexandra DiLauro Bermel, Domenic Santilli
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Patent number: 5651813Abstract: A process for making ink jet inks, comprising the steps of:(A) providing a dispersion containing a pigment, a carrier for the pigment and as a dispersant sodium N-methyl-N-oleoyl taurate;(B) mixing the pigment dispersion with rigid milling media;(C) introducing the mixture of step (B) into mill;(D) milling the mixture from step (C) until the pigment particle size less than 1.5 .mu.m;(E) separating the milling media from the mixture milled in step (D); and(F) diluting the mixture from step (E) to obtain an ink jet ink having a pigment concentration suitable for ink jet printers.Type: GrantFiled: November 30, 1995Date of Patent: July 29, 1997Assignee: Eastman Kodak CompanyInventors: Domenic Santilli, Douglas Eugene Bugner
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Patent number: 5611847Abstract: An ink composition for utilization in ink-jet printing is provided which comprises an aqueous medium, a metallized azo red pigment and, as a sequestering agent, an alkali metal, an alkaline earth metal or an ammonium salt of a linear aliphatic substituted glycine such as a salt of ethylene diamine tetraacetic acid or nitrilo triacetic acid. The composition has been found to remain stable for extended periods of time.Type: GrantFiled: December 8, 1994Date of Patent: March 18, 1997Assignee: Eastman Kodak CompanyInventors: Robert A. Guistina, Domenic Santilli, Douglas E. Bugner
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Patent number: 5330868Abstract: An electrographic liquid developer includes a fluorescent toner diluted in a liquid developer vehicle which has a high flash point and a low vapor pressure. The liquid developer vehicle preferably is a mixed liquid alkane which has a flash point over 140.degree. F. and a vapor pressure less than 5.2 mm of mercury at 38.degree. C. The fluorescent toner is preferably made as follows:a solution is prepared which comprises an organic solvent, a fluorescent dye, and an organic polymer. A pigment is precipitated by mixing the solution with a non-solvent for the polymer in the presence of a dispersant. The pigment is melt-compounded with a polymeric organic binder and the melt-compounded mixture is comminuted.Type: GrantFiled: September 8, 1992Date of Patent: July 19, 1994Assignee: Eastman Kodak CompanyInventors: Domenic Santilli, John W. May
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Patent number: 5283151Abstract: A method is described for the preparation of electrostatographic toner particles which involves the use of carnauba wax for treating the surface of a pigment employed The method involves recrystallizing carnauba wax from its natural state by dissolution in ethyl acetate and cooling to precipitate needle like structures The structures so obtained are then added to a mixture comprising a pigment, a polymer material, a solvent and optionally a charge control agent which mixture serves as the organic phase in a limited coalescence process. The toner particles produced in accordance with this method are non spherical in nature and evidence excellent fluidity and anti-blocking properties.Type: GrantFiled: May 28, 1992Date of Patent: February 1, 1994Assignee: Eastman Kodak CompanyInventor: Domenic Santilli
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Patent number: 5176980Abstract: An electrographic liquid developer includes a fluorescent toner diluted in a liquid developer vehicle which has a high flash point and a low vapor pressure. The liquid developer vehicle preferably is a mixed liquid alkane which has a flash point over 140.degree. F. and a vapor pressure less than 5.2 mm of mercury at 38.degree. C. The fluorescent toner is preferably made as follows:a solution is prepared which comprises an organic solvent, a fluorescent dye, and an organic polymer. A pigment is precipitated by mixing the solution with a non-solvent for the polymer in the presence of a dispersant. The pigment is melt-compounded with a polymeric organic binder and the melt-compounded mixture is comminuted.Type: GrantFiled: August 8, 1991Date of Patent: January 5, 1993Assignee: Eastman Kodak CompanyInventors: Domenic Santilli, John W. May
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Patent number: 5064738Abstract: A process and apparatus is provided for liquid development of a latent electrostatic image. A member bearing an electrostatic image is moved successively past (a) a toner liquid dispersion applying station wherein the latent image is developed, (b) a skiving station wherein residual liquid developer is removed, (c) a rinsing station wherein a rinse liquid is applied, and, if required, (d) another skiving station wherein residual rinse liquid is removed. the first skiving station preferably employs a conductive, resilient roller which is applied under pressure to the member and which is also initially covered with a flush liquid. The rinse liquid is preferably the toner liquid dispersion.Type: GrantFiled: November 20, 1989Date of Patent: November 12, 1991Assignee: Eastman Kodak CompanyInventors: David M. Rakov, Domenic Santilli
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Patent number: 5014090Abstract: An improvement in the method and apparatus for producing a multi-color electrophotographic image wherein an electrophotographic medium is mounted on a carrier therefor and is translated over a predetermined path so that the medium is first charged, then exposed to a first light-borne image and then toned. Thus, the unexposed portions of the image bearing charged region of the medium are toned, preferably by a liquid toner, to produce a first color visible image. The carrier is then returned to the first position to repeat the foregoing steps to charge the medium and to expose it to a second light-borne image and to tone the second image with a second toning element to produce a second color visible image on the same sheet of medium. The improvement comprises means for applying a solvent vapor to the surface of the first toned image after the first toning step and prior to the second charging step to smooth and further fuse the previously toned image to prevent color contamination of subsequent imaging cycles.Type: GrantFiled: March 28, 1990Date of Patent: May 7, 1991Assignee: Eastman Kodak CompanyInventor: Domenic Santilli
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Patent number: 4913992Abstract: An improvement in the method and apparatus for producing a multi-color electrophotographic image wherein an electrophotographic medium is mounted on a carrier therefor and is translated over a predetermined path so that the medium is first charged, then exposed to a first light-borne image and then toned. Thus, the unexposed portions of the image bearing charged region of the medium are toned, preferably by a liquid toner, to produce a first color visible image. The carrier is then returned to the first position to repeat the foregoing steps to charge the medium and to expose it to a second light-borne image and to tone the second image with a second toning element to produce a second color visible image on the same sheet of medium. One of the images formed is a cyan image.Type: GrantFiled: May 26, 1989Date of Patent: April 3, 1990Assignee: Eastman Kodak CompanyInventors: Lawrence C. Steele, Kenneth E. Rook, Domenic Santilli, Dennis R. Kamp
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Patent number: 4865937Abstract: Disclosed is a method of making a fluorescent toner for use in electrostatography and a fluorescent toner and developer made by that method. A solution is prepared which comprises an organic solvent, a fluorescent dye, and an organic polymer. A pigment is precipitated by mixing the solution with a non-solvent for the polymer in the presence of a dispersant. The pigment is melt compounded with a polymeric organic binder and the melt compounded mixture is comminuted.Type: GrantFiled: September 26, 1988Date of Patent: September 12, 1989Assignee: Eastman Kodak CompanyInventors: Domenic Santilli, John W. May
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Patent number: 4812377Abstract: Dry or liquid developers capable of forming high resolution electrostatographic images are made from finely divided toner particles comprising a fusible branched chain, polyester resin which contains 2,3-dihydro,1,3-dioxo-2-yl-1H-isoindole-ar(-yl or -diyl) groups derived, for example, from a 2,3-dihydro-1,3-dioxo-1H-isoindole-5-carboxylic acid. The toner compositions are brittle and can be ground to very small particle size for high resolution image development; they have good cohesivity and resist toner offset; they are fusible at low temperatures; and, in preferred embodiments, are capable of forming transparent color images.Type: GrantFiled: March 28, 1988Date of Patent: March 14, 1989Assignee: Eastman Kodak CompanyInventors: John C. Wilson, Domenic Santilli, Lawrence P. DeMejo