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).

  • Patent number: 8378263
    Abstract: 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: Grant
    Filed: October 13, 2008
    Date of Patent: February 19, 2013
    Assignee: Palo Alto Research Center Incorporated
    Inventors: David K. Biegelsen, Lars Erik Swartz, Armin R. Volkel, Ashish V. Pattekar
  • Patent number: 8360423
    Abstract: 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: Grant
    Filed: September 15, 2011
    Date of Patent: January 29, 2013
    Assignee: Palo Alto Research Center Incorporated
    Inventors: David K. Biegelsen, David G. Duff, Lars E. Swartz, Ashish V. Pattekar
  • Patent number: 8282097
    Abstract: 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: Grant
    Filed: September 15, 2011
    Date of Patent: October 9, 2012
    Assignee: Palo Alto Research Center Incorporated
    Inventors: David K. Biegelsen, David G. Duff, Erik L. Swartz, Ashish V. Pattekar
  • Publication number: 20120120169
    Abstract: 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: Application
    Filed: January 18, 2012
    Publication date: May 17, 2012
    Applicant: Palo Alto Research Center Incorporated
    Inventors: Ashish V. Pattekar, Lars Erik Swartz, David K. Biegelsen, Armin R. Volkel, Gregory J. Kovacs
  • Publication number: 20120113202
    Abstract: 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: Application
    Filed: January 18, 2012
    Publication date: May 10, 2012
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Ashish V. Pattekar, Lars Erik Swartz, David K. Biegelsen, Armin R. Volkel, Gregory J. Kovacs
  • Patent number: 8118420
    Abstract: 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: Grant
    Filed: December 21, 2007
    Date of Patent: February 21, 2012
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Ashish V. Pattekar, Lars Erik Swartz, David K. Biegelsen, Armin R. Volkel, Gregory J. Kovacs
  • Publication number: 20120006655
    Abstract: 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: Application
    Filed: September 15, 2011
    Publication date: January 12, 2012
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: David K. Biegelsen, David G. Duff, Lars E. Swartz, Ashish V. Pattekar
  • Publication number: 20120000386
    Abstract: 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: Application
    Filed: September 15, 2011
    Publication date: January 5, 2012
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: David K. Biegelsen, David G. Duff, Lars E. Swartz, Ashish V. Pattekar
  • Patent number: 8042807
    Abstract: 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: Grant
    Filed: December 21, 2006
    Date of Patent: October 25, 2011
    Assignee: Palo Alto Research Center Incorporated
    Inventors: David K. Biegelsen, David G. Duff, Erik L. Swartz, Ashish V. Pattekar
  • Patent number: 8040364
    Abstract: 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: Grant
    Filed: July 14, 2009
    Date of Patent: October 18, 2011
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Timothy D. Stowe, Eugene M. Chow, Ashish V. Pattekar, Eric Peeters
  • Patent number: 8007626
    Abstract: 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: Grant
    Filed: April 22, 2009
    Date of Patent: August 30, 2011
    Assignee: Lehigh University
    Inventors: Ashish V. Pattekar, Mayuresh V. Kothare
  • Publication number: 20110012980
    Abstract: 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: Application
    Filed: July 14, 2009
    Publication date: January 20, 2011
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Timothy D. Stowe, Eugene M. Chow, Ashish V. Pattekar, Eric Peeters
  • Publication number: 20100092199
    Abstract: 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: Application
    Filed: October 13, 2008
    Publication date: April 15, 2010
    Applicant: PALTO ALTO RESEARCH CENTER INCORPORATED
    Inventors: David K. BIEGELSEN, Lars Erik SWARTZ, Armin R. VOLKEL, Ashish V. PATTEKAR
  • Publication number: 20100085585
    Abstract: 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: Application
    Filed: October 3, 2008
    Publication date: April 8, 2010
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Timothy D. Stowe, Eugene M. Chow, Ashish V. Pattekar, Eric Peeters
  • Publication number: 20090274499
    Abstract: 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: Application
    Filed: April 30, 2008
    Publication date: November 5, 2009
    Applicants: XEROX CORPORATION, PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Gregory J. Kovacs, Ashish V. Pattekar, David Biegelsen, Lars E. Swartz, Guerino G. Sacripante, T. Brian McAneney, Edward G. Zwartz
  • Publication number: 20090242116
    Abstract: 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: Application
    Filed: April 22, 2009
    Publication date: October 1, 2009
    Applicant: Lehigh University
    Inventors: Ashish V. Pattekar, Mayuresh V. Kothare
  • Publication number: 20090160924
    Abstract: 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: Application
    Filed: December 21, 2007
    Publication date: June 25, 2009
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: Ashish V. Pattekar, Lars Erik Swartz, David K. Biegelsen, Armin R. Volkel, Gregory J. Kovacs
  • Patent number: 7541007
    Abstract: 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: Grant
    Filed: December 19, 2003
    Date of Patent: June 2, 2009
    Assignee: Lehigh University
    Inventors: Ashish V. Pattekar, Mayuresh V. Kothare
  • Publication number: 20080150229
    Abstract: 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: Application
    Filed: December 21, 2006
    Publication date: June 26, 2008
    Applicant: PALO ALTO RESEARCH CENTER INCORPORATED
    Inventors: David K. Biegelsen, David G. Duff, Lars E. Swartz, Ashish V. Pattekar
  • Publication number: 20040179980
    Abstract: 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: Application
    Filed: December 19, 2003
    Publication date: September 16, 2004
    Inventors: Ashish V. Pattekar, Mayuresh V. Kothare