Patents by Inventor Ashish V. Pattekar
Ashish V. Pattekar 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: 8378263Abstract: A fusing system and a method of operating the fusing system, including a first heating zone to heat marking material and a substrate using a non-condensing heat source to less than a target temperature; and a second heating zone to heat the marking material and the substrate to about the target temperature to fuse the marking material to the substrate.Type: GrantFiled: October 13, 2008Date of Patent: February 19, 2013Assignee: Palo Alto Research Center IncorporatedInventors: David K. Biegelsen, Lars Erik Swartz, Armin R. Volkel, Ashish V. Pattekar
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Patent number: 8360423Abstract: A transport system for cut sheet media has a first and second cylinder to form a nip, a support subsystem to transport edges of cut sheets having at least one image into and out of the nip, and an array of contact points on each cylinder to make contact with the cut sheets without marking the image. A wheel for a print medium transport system has an outer rim having a series of contact points, an inner hub supporting a means to accommodate a drive shaft, and an internal spring connecting the outer rim to the inner hub. A method of transporting cut sheets in a printing system forms a nip between at least one pair of cylinders, each cylinder having an array of contact points, guides a first edge of a cut sheet into the nip, and uses the arrays of contact points to transport the cut sheets through one of either a fusing or drying process.Type: GrantFiled: September 15, 2011Date of Patent: January 29, 2013Assignee: Palo Alto Research Center IncorporatedInventors: David K. Biegelsen, David G. Duff, Lars E. Swartz, Ashish V. Pattekar
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Patent number: 8282097Abstract: A transport system for cut sheet media has a first and second cylinder to form a nip, a support subsystem to transport edges of cut sheets having at least one image into and out of the nip, and an array of contact points on each cylinder to make contact with the cut sheets without marking the image. A wheel for a print medium transport system has an outer rim having a series of contact points, an inner hub supporting a means to accommodate a drive shaft, and an internal spring connecting the outer rim to the inner hub. A method of transporting cut sheets in a printing system forms a nip between at least one pair of cylinders, each cylinder having an array of contact points, guides a first edge of a cut sheet into the nip, and uses the arrays of contact points to transport the cut sheets through one of either a fusing or drying process.Type: GrantFiled: September 15, 2011Date of Patent: October 9, 2012Assignee: Palo Alto Research Center IncorporatedInventors: David K. Biegelsen, David G. Duff, Erik L. Swartz, Ashish V. Pattekar
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Publication number: 20120120169Abstract: A method of leveling ink that is printed on a substrate includes establishing a thermal gradient across a thickness of the substrate, the thermal gradient characterized in that it is less than a viscosity threshold temperature of the ink across most of the substrate.Type: ApplicationFiled: January 18, 2012Publication date: May 17, 2012Applicant: Palo Alto Research Center IncorporatedInventors: Ashish V. Pattekar, Lars Erik Swartz, David K. Biegelsen, Armin R. Volkel, Gregory J. Kovacs
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Publication number: 20120113202Abstract: A method of leveling ink that is printed on a substrate includes establishing a thermal gradient across a thickness of the substrate, the thermal gradient characterized in that it is less than a viscosity threshold temperature of the ink across most of the substrate.Type: ApplicationFiled: January 18, 2012Publication date: May 10, 2012Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Ashish V. Pattekar, Lars Erik Swartz, David K. Biegelsen, Armin R. Volkel, Gregory J. Kovacs
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Patent number: 8118420Abstract: A method of leveling ink that is printed on a substrate includes establishing a thermal gradient across a thickness of the substrate, the thermal gradient characterized in that it is less than a viscosity threshold temperature of the ink across most of the substrate.Type: GrantFiled: December 21, 2007Date of Patent: February 21, 2012Assignee: Palo Alto Research Center IncorporatedInventors: Ashish V. Pattekar, Lars Erik Swartz, David K. Biegelsen, Armin R. Volkel, Gregory J. Kovacs
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Publication number: 20120006655Abstract: A transport system for cut sheet media has a first and second cylinder to form a nip, a support subsystem to transport edges of cut sheets having at least one image into and out of the nip, and an array of contact points on each cylinder to make contact with the cut sheets without marking the image. A wheel for a print medium transport system has an outer rim having a series of contact points, an inner hub supporting a means to accommodate a drive shaft, and an internal spring connecting the outer rim to the inner hub. A method of transporting cut sheets in a printing system forms a nip between at least one pair of cylinders, each cylinder having an array of contact points, guides a first edge of a cut sheet into the nip, and uses the arrays of contact points to transport the cut sheets through one of either a fusing or drying process.Type: ApplicationFiled: September 15, 2011Publication date: January 12, 2012Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: David K. Biegelsen, David G. Duff, Lars E. Swartz, Ashish V. Pattekar
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Publication number: 20120000386Abstract: A transport system for cut sheet media has a first and second cylinder to form a nip, a support subsystem to transport edges of cut sheets having at least one image into and out of the nip, and an array of contact points on each cylinder to make contact with the cut sheets without marking the image. A wheel for a print medium transport system has an outer rim having a series of contact points, an inner hub supporting a means to accommodate a drive shaft, and an internal spring connecting the outer rim to the inner hub. A method of transporting cut sheets in a printing system forms a nip between at least one pair of cylinders, each cylinder having an array of contact points, guides a first edge of a cut sheet into the nip, and uses the arrays of contact points to transport the cut sheets through one of either a fusing or drying process.Type: ApplicationFiled: September 15, 2011Publication date: January 5, 2012Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: David K. Biegelsen, David G. Duff, Lars E. Swartz, Ashish V. Pattekar
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Patent number: 8042807Abstract: A transport system for cut sheet media has a first and second cylinder to form a nip, a support subsystem to transport edges of cut sheets having at least one image into and out of the nip, and an array of contact points on each cylinder to make contact with the cut sheets without marking the image. A wheel for a print medium transport system has an outer rim having a series of contact points, an inner hub supporting a means to accommodate a drive shaft, and an internal spring connecting the outer rim to the inner hub. A method of transporting cut sheets in a printing system forms a nip between at least one pair of cylinders, each cylinder having an array of contact points, guides a first edge of a cut sheet into the nip, and uses the arrays of contact points to transport the cut sheets through one of either a fusing or drying process.Type: GrantFiled: December 21, 2006Date of Patent: October 25, 2011Assignee: Palo Alto Research Center IncorporatedInventors: David K. Biegelsen, David G. Duff, Erik L. Swartz, Ashish V. Pattekar
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Patent number: 8040364Abstract: An imaging system including an image receiving structure including a tunable-resistivity material; and an energy source to emit an energy beam at the image receiving structure to pattern-wise program the tunable-resistivity material. A resistivity can be pattern-wise changed. Marking material can be pattern-wise adhered in response to the pattern-wise changed resistivity.Type: GrantFiled: July 14, 2009Date of Patent: October 18, 2011Assignee: Palo Alto Research Center IncorporatedInventors: Timothy D. Stowe, Eugene M. Chow, Ashish V. Pattekar, Eric Peeters
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Patent number: 8007626Abstract: A method of bonding a capillary tube made of a thermally deformable material to a passage in a glass wafer comprising the steps of treating the surface of the capillary tube to render the surface bondable and wettable by a conventional epoxy resin; inserting a support inside the capillary to prevent inward deformation of the capillary during subsequent fabricating steps; inserting the supported capillary inside the port on the wafer; heating an end of the capillary proximate a bottom portion of the port to effect melting of a portion of the heated end of the capillaries; moving the melted end of the capillary into contact with a wall of the port at a desired location for the capillary in the port, thus forming a temporary seal between the capillary and the wall of the port; and introducing an epoxy around the capillary to bind the capillary to the wafer.Type: GrantFiled: April 22, 2009Date of Patent: August 30, 2011Assignee: Lehigh UniversityInventors: Ashish V. Pattekar, Mayuresh V. Kothare
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Publication number: 20110012980Abstract: An imaging system including an image receiving structure including a tunable-resistivity material; and an energy source to emit an energy beam at the image receiving structure to pattern-wise program the tunable-resistivity material. A resistivity can be pattern-wise changed. Marking material can be pattern-wise adhered in response to the pattern-wise changed resistivity.Type: ApplicationFiled: July 14, 2009Publication date: January 20, 2011Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Timothy D. Stowe, Eugene M. Chow, Ashish V. Pattekar, Eric Peeters
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Publication number: 20100092199Abstract: A fusing system and a method of operating the fusing system, including a first heating zone to heat marking material and a substrate using a non-condensing heat source to less than a target temperature; and a second heating zone to heat the marking material and the substrate to about the target temperature to fuse the marking material to the substrate.Type: ApplicationFiled: October 13, 2008Publication date: April 15, 2010Applicant: PALTO ALTO RESEARCH CENTER INCORPORATEDInventors: David K. BIEGELSEN, Lars Erik SWARTZ, Armin R. VOLKEL, Ashish V. PATTEKAR
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Publication number: 20100085585Abstract: An imaging system including an image receiving structure including a material layer having a tunable energy transfer characteristic; and an energy source to emit an energy beam at the material having the tunable energy transfer characteristic such that marking material is pattern-wise transferred to the image receiving structure. An imaging system includes an image receiving structure disposed to be in direct contact with marking material; and an energy source to emit a pattern-wise modulated energy beam at a region of the image receiving structure contacting the marking material to pattern-wise transfer marking material to the image receiving structure.Type: ApplicationFiled: October 3, 2008Publication date: April 8, 2010Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Timothy D. Stowe, Eugene M. Chow, Ashish V. Pattekar, Eric Peeters
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Publication number: 20090274499Abstract: A system for heated gas fusing of toner on non-porous substrates is provided. The system uses (1) an extended fusing zone held at lower temperatures than needed for a roll nip or radiant fuser, and (2) a very low melt toner which can be fused at greatly reduced temperatures compared to conventional toners. In one form, the system is realized through (a) the use of heated gas as the low temperature extended zone fusing technology, and (b) the use of ultra-low melt (ULM) toner—which requires significantly reduced temperature compared to conventional toner. On non-porous packaging substrates the use of heated gas can limit the substrate temperature to 100° C.Type: ApplicationFiled: April 30, 2008Publication date: November 5, 2009Applicants: XEROX CORPORATION, PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Gregory J. Kovacs, Ashish V. Pattekar, David Biegelsen, Lars E. Swartz, Guerino G. Sacripante, T. Brian McAneney, Edward G. Zwartz
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Publication number: 20090242116Abstract: A method of bonding a capillary tube made of a thermally deformable material to a passage in a glass wafer comprising the steps of treating the surface of the capillary tube to render the surface bondable and wettable by a conventional epoxy resin; inserting a support inside the capillary to prevent inward deformation of the capillary during subsequent fabricating steps; inserting the supported capillary inside the port on the wafer; heating an end of the capillary proximate a bottom portion of the port to effect melting of a portion of the heated end of the capillaries; moving the melted end of the capillary into contact with a wall of the port at a desired location for the capillary in the port, thus forming a temporary seal between the capillary and the wall of the port; and introducing an epoxy around the capillary to bind the capillary to the wafer.Type: ApplicationFiled: April 22, 2009Publication date: October 1, 2009Applicant: Lehigh UniversityInventors: Ashish V. Pattekar, Mayuresh V. Kothare
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Publication number: 20090160924Abstract: A method of leveling ink that is printed on a substrate includes establishing a thermal gradient across a thickness of the substrate, the thermal gradient characterized in that it is less than a viscosity threshold temperature of the ink across most of the substrate.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Ashish V. Pattekar, Lars Erik Swartz, David K. Biegelsen, Armin R. Volkel, Gregory J. Kovacs
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Patent number: 7541007Abstract: Microreactor for carrying out methanol reforming for hydrogen production. The microreactor consists of a network of catalyst-packed parallel microchannels of cross-sectional dimensions from 400 to 1000 micrometers with a catalyst particle filter near the outlet fabricated by micromachining techniques, e.g., using photolithography and deep-reactive ion etching (DRIE) on a silicon substrate. Microchannel and filter capping, on-chip heating and temperature sensing, introduction and trapping of catalyst particles in the microchannels, flow distribution, microfluidic interfacing and thermal insulation are features of the microreactor. Another microreactor consists of a radial-flow configuration utilizing a annular shaped catalyst zone for carrying out reactions between gases introduced into the microreactor as the gases flow from an inner circular boundary to an outer circular boundary in a radial direction.Type: GrantFiled: December 19, 2003Date of Patent: June 2, 2009Assignee: Lehigh UniversityInventors: Ashish V. Pattekar, Mayuresh V. Kothare
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Publication number: 20080150229Abstract: A transport system for cut sheet media has a first and second cylinder to form a nip, a support subsystem to transport edges of cut sheets having at least one image into and out of the nip, and an array of contact points on each cylinder to make contact with the cut sheets without marking the image. A wheel for a print medium transport system has an outer rim having a series of contact points, an inner hub supporting a means to accommodate a drive shaft, and an internal spring connecting the outer rim to the inner hub. A method of transporting cut sheets in a printing system forms a nip between at least one pair of cylinders, each cylinder having an array of contact points, guides a first edge of a cut sheet into the nip, and uses the arrays of contact points to transport the cut sheets through one of either a fusing or drying process.Type: ApplicationFiled: December 21, 2006Publication date: June 26, 2008Applicant: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: David K. Biegelsen, David G. Duff, Lars E. Swartz, Ashish V. Pattekar
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Publication number: 20040179980Abstract: The microreactor consists of a network of catalyst-packed parallel microchannels of cross-sectional dimensions from 400 to 1000 micrometers with a catalyst particle filter near the outlet fabricated by micromachining techniques, e.g., using photolithography and deep-reactive ion etching (DRIE) on a silicon substrate. Microchannel and filter capping, on-chip heating and temperature sensing, introduction and trapping of catalyst particles in the microchannels, flow distribution, microfluidic interfacing and thermal insulation are features of the microreactor.Type: ApplicationFiled: December 19, 2003Publication date: September 16, 2004Inventors: Ashish V. Pattekar, Mayuresh V. Kothare