Patents by Inventor Peter J. Nystrom

Peter J. Nystrom 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).

  • Multi-film adhesive design for interfacial bonding printhead structures
    Patent number: 8794743
    Abstract: In accordance with aspects of the present disclosure, a printhead assembly arranged to dispense ultraviolet curable ink or gel ink and method thereof is disclosed. The printhead assembly includes a plurality of functional plates stacked together; a first adhesive layer arranged between adjacent functional plates to provide bonding between the plates; and a second adhesive layer arranged between adjacent function plates to provide chemical resistance to the ultraviolet curable ink or the gel ink.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: August 5, 2014
    Assignee: Xerox Corporation
    Inventors: Yanjia Zuo, James M. Casella, Santokh S. Badesha, Peter J. Nystrom, Antonio L. Williams, Thomas J. Wyble, Mandakini Kanungo
  • STRUCTURE AND METHOD TO FABRICATE TOOLING FOR BUMPING THIN FLEX CIRCUITS
    Publication number: 20140178644
    Abstract: A structure and method for a post plate of a die set that can be used to emboss a plurality of contact pads of a flexible printed circuit during the formation of a printer printhead. In one embodiment, a plurality of post plate posts can be formed, where each post plate post has a flat upper surface, generally straight sides, and a sharp corner where the flat upper surface and the generally straight sides intersect. Each post can be polished using, for example, a pad and an abrasive polishing compound or an electrochemical polishing process, to round the sharp corners to form a post having a rounded contour. In another embodiment, a plurality of post plate posts each having a rounded contour can be formed using a molding process.
    Type: Application
    Filed: December 20, 2012
    Publication date: June 26, 2014
    Applicant: XEROX CORPORATION
    Inventors: Peter J. Nystrom, Bryan R. Dolan, Gary D. Redding
  • Ink jet printing systems and methods with pre-fill and dimple design
    Patent number: 8746848
    Abstract: Systems and methods of ejecting ink drops from an inkjet printer are disclosed. The systems and methods can include a printhead with one or more actuators with associated nozzles and membranes. A voltage waveform can be applied to the actuators to fill the actuators with a volume of ink and eject the ink through the nozzles as ink drops. The voltage waveform can have associated pre-fill voltage to fill the actuator with ink and a firing voltage to eject the ink. The actuator membranes can have multi-height dimples to protect the membranes from contacting electrodes and reduce the electric field.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: June 10, 2014
    Assignee: Xerox Corporation
    Inventors: Andrew W Hays, Richard P Germain, Joseph A Degroot, Peter J Nystrom, Jun Ma
  • Patterned heater traces for inkjet printhead
    Patent number: 8746850
    Abstract: A printhead for an ink jet printer can be formed as a plurality of substructures which are connected subsequent to inspection and/or testing. A substructure can include a semiconductor substrate such as a silicon substrate having a plurality of heater traces which are used to maintain a temperature of melted solid ink within a tolerance of a desired temperature. The traces can be accurately formed using semiconductor processing techniques. Testing and/or inspecting the substructures prior to assembly can reduce rework and scrap, and can allow the formation of printhead structures from a wide variety of materials.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: June 10, 2014
    Assignee: Xerox Corporation
    Inventors: Bradley James Gerner, Peter J. Nystrom
  • Method and structure for sealing fine fluid features in a printing device
    Patent number: 8740357
    Abstract: An ink jet printhead including a substrate such as an ink reservoir or an interposer and a printing device. The printing device can be attached to the substrate with a first adhesive and with a second adhesive that is different than the first adhesive. The second adhesive can be applied to the printing device and to the substrate after attaching the printing device to the substrate with the first adhesive. The second adhesive can seal a gap from an ink channel in the substrate to a location between the printing device and the substrate.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: June 3, 2014
    Assignee: Xerox Corporation
    Inventors: Bryan R. Dolan, Mark A. Cellura, Peter J. Nystrom, John P. Meyeres, Lyle G. Dingman
  • Bonded silicon structure for high density print head
    Patent number: 8727508
    Abstract: A print head including a jet stack can be formed using semiconductor device manufacturing techniques. A blanket metal layer, a blanket piezoelectric element layer, and a blanket conductive layer can be formed over a semiconductor substrate such as a semiconductor wafer or wafer section. The piezoelectric element layer and the blanket conductive layer can be patterned to provide a plurality of transducer piezoelectric elements and top electrodes respectively, while the metal layer forms a bottom electrode for the plurality of transducers. Subsequently, the semiconductor substrate can be patterned to form a body plate for the print head jet stack. Forming a print head jet stack using semiconductor device manufacturing techniques can provide a high resolution device with small feature sizes.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: May 20, 2014
    Assignee: Xerox Corporation
    Inventors: Peter J Nystrom, Bijoyraj Sahu
  • Multiple layer filter
    Patent number: 8714722
    Abstract: A structure and method including a filter assembly, wherein the structure can be an ink jet printhead including the filter assembly. The filter assembly can include a first filter layer having a plurality of pores therein, wherein the pores have a first pitch, and a second filter layer having a plurality of pores therein, wherein the pores in the second filter layer have a second pitch which is different than the first pitch. The structure can include a fluid path through the filter assembly. An area of overlap of the pores in the first filter layer with the pores in the second filter layer, in a vertical direction perpendicular to a plane of the filter assembly, can include a periodicity.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: May 6, 2014
    Assignee: Xerox Corporation
    Inventors: Andrew W. Hays, Jun Ma, Peter J. Nystrom, Bradley J. Gerner
  • Method for protecting piezoelectric transducer
    Patent number: 8708465
    Abstract: Disclosed is a process for preparing an ink jet printhead which comprises: (a) providing a diaphragm plate having a plurality of piezoelectric transducers bonded thereto with an adhesive; (b) placing an encapsulant thin film on the piezoelectric transducers; and (c) applying heat, pressure, or a combination thereof to the encapsulant thin film to a degree sufficient to cause the encapsulant to encapsulate the adhesive.
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: April 29, 2014
    Assignee: Xerox Corporation
    Inventors: Mark A. Cellura, Peter J. Nystrom, Bryan R. Dolan, Gary D. Redding
  • Screen printed jet stack heater
    Patent number: 8696091
    Abstract: Apparatus and methods for heating a printer jet stack. The apparatus includes a first layer and a second layer disposed generally parallel to the first layer. The apparatus also includes a heating layer including a thermal epoxy configured to generate heat when an electrical current is applied thereto. The heating layer is disposed between and bonds together the first layer and the second layer.
    Type: Grant
    Filed: May 29, 2012
    Date of Patent: April 15, 2014
    Assignee: Xerox Corporation
    Inventors: Bradley James Gerner, Peter J. Nystrom, Andrew W. Hays
  • REDUCED MECHANICAL COUPLING WITH STRUCTURED FLEX CIRCUITS
    Publication number: 20140092175
    Abstract: An actuator assembly including a flexible printed circuit and a method for making such an actuator assembly are provided. The flexible printed circuit includes a body having a top side and a bottom side, with the body defining a plurality of bumps extending from the bottom side. A first bump of the plurality of bumps is disposed adjacent to a second bump of the plurality of bumps, and the body further defines at least one relief configured to reduce movement of the second bump caused by movement of the first bump. The flexible printed circuit also includes a plurality of contact pads disposed on the bottom side of the body at least partially at the plurality of bumps, with the plurality of contacts pads being configured to be electrically coupled to a power source and to a piezoelectric transducer.
    Type: Application
    Filed: October 3, 2012
    Publication date: April 3, 2014
    Applicant: XEROX CORPORATION
    Inventors: Peter J. Nystrom, Bryan R. Dolan, Bradley James Gerner
  • Diaphragm for an electrostatic actuator in an ink jet printer
    Patent number: 8684500
    Abstract: Diaphragms for electrostatic actuators for inkjet printers and methods for manufacturing are provided. The method includes electroplating a first layer on a mandrel, and applying a photoresist to the first layer. The method also includes electroplating a second layer on the first layer adjacent the photoresist, such that the first and second layers form a substantially homogenous structure, and separating the photoresist from the first and second layers to expose one or more flexure recesses where the photoresist was positioned, with the diaphragm having a reduced stiffness proximal the flexure recess.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: April 1, 2014
    Assignee: Xerox Corporation
    Inventor: Peter J. Nystrom
  • HIGH DENSITY THREE-DIMENSIONAL ELECTRICAL INTERCONNECTIONS
    Publication number: 20140071208
    Abstract: Implementations relate to methods, devices produced by the method, and systems using the devices, for forming three-dimensional interconnect structures for ink piezoelectric printheads.
    Type: Application
    Filed: September 13, 2012
    Publication date: March 13, 2014
    Applicant: XEROX CORPORATION
    Inventors: Xuejin Wen, Peter J. Nystrom, Gary D. Redding, Jun Ma
  • INTERSTITIAL MATERIAL TO ENABLE ROBUST ELECTRICAL INTERCONNECT FOR HIGH DENSITY PIEZOELECTRIC ARRAYS
    Publication number: 20140043400
    Abstract: An ink jet print head including a plurality of standoff layer supports in an interstitial region between adjacent piezoelectric elements, and method of formation. The plurality of standoff layer supports can be formed from the same layer(s) as the piezoelectric elements, or from a dielectric layer such as a polymer. The standoff layer supports increase an area to which a standoff layer can be attached, thereby forming a more secure attachment of a circuit layer such as a flex circuit or a printed circuit board to a jet stack subassembly.
    Type: Application
    Filed: August 8, 2012
    Publication date: February 13, 2014
    Applicant: XEROX CORPORATION
    Inventors: Bryan R. DOLAN, Gary D. Redding, Peter J. Nystrom
  • Independent adjustment of drop mass and velocity using stepped nozzles
    Patent number: 8646875
    Abstract: Methods and systems of ejecting ink drops from an inkjet printer are disclosed. The methods and systems can include a printhead with one or more stepped nozzles each with an associated entrance diameter and exit diameter. Ink can be received into the printhead and formed into ink drops in the stepped nozzles. The ink drops can each have an associated drop mass and drop speed. The stepped nozzles can be provided such that the exit diameter can independently dictate the drop mass and the entrance diameter can independently dictate the drop speed. As such, the complexity of jet design optimization is reduced.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: February 11, 2014
    Assignee: Xerox Corporation
    Inventors: Peter M. Gulvin, John R. Andrews, Gerald A. Domoto, Nicholas P. Kladias, Peter J. Nystrom
  • Interstitial material to enable robust electrical interconnect for high density piezoelectric arrays
    Patent number: 8646881
    Abstract: An ink jet print head including a plurality of standoff layer supports in an interstitial region between adjacent piezoelectric elements, and method of formation. The plurality of standoff layer supports can be formed from the same layer(s) as the piezoelectric elements, or from a dielectric layer such as a polymer. The standoff layer supports increase an area to which a standoff layer can be attached, thereby forming a more secure attachment of a circuit layer such as a flex circuit or a printed circuit board to a jet stack subassembly.
    Type: Grant
    Filed: August 8, 2012
    Date of Patent: February 11, 2014
    Assignee: Xerox Corporation
    Inventors: Bryan R. Dolan, Gary D. Redding, Peter J. Nystrom
  • DIAPHRAGM FOR AN ELECTROSTATIC ACTUATOR IN AN INK JET PRINTER
    Publication number: 20140036005
    Abstract: Diaphragms for electrostatic actuators for inkjet printers and methods for manufacturing are provided. The method includes electroplating a first layer on a mandrel, and applying a photoresist to the first layer. The method also includes electroplating a second layer on the first layer adjacent the photoresist, such that the first and second layers form a substantially homogenous structure, and separating the photoresist from the first and second layers to expose one or more flexure recesses where the photoresist was positioned, with the diaphragm having a reduced stiffness proximal the flexure recess.
    Type: Application
    Filed: August 6, 2012
    Publication date: February 6, 2014
    Applicant: XEROX CORPORATION
    Inventor: Peter J. Nystrom
  • MULTIPLE LAYER FILTER
    Publication number: 20140022320
    Abstract: A structure and method including a filter assembly, wherein the structure can be an ink jet printhead including the filter assembly. The filter assembly can include a first filter layer having a plurality of pores therein, wherein the pores have a first pitch, and a second filter layer having a plurality of pores therein, wherein the pores in the second filter layer have a second pitch which is different than the first pitch. The structure can include a fluid path through the filter assembly. An area of overlap of the pores in the first filter layer with the pores in the second filter layer, in a vertical direction perpendicular to a plane of the filter assembly, can include a periodicity.
    Type: Application
    Filed: July 20, 2012
    Publication date: January 23, 2014
    Applicant: XEROX CORPORATION
    Inventors: Andrew W. HAYS, Jun MA, Peter J. NYSTROM, Bradley J. GERNER
  • LASER WELDED BONDING PADS FOR PIEZOELECTRIC PRINT HEADS
    Publication number: 20130335484
    Abstract: An ink jet print head can be formed using a laser to melt a plating layer interposed between a piezoelectric actuator and a circuit layer bump. The plating layer can be formed on the circuit layer bump, the piezoelectric actuator, or both, and a laser beam output by the laser is used to melt the plating layer to provide a laser weld. In another embodiment, the circuit layer bump or the trace itself functions as the plating layer, which is melted using a laser to provide the laser weld.
    Type: Application
    Filed: June 15, 2012
    Publication date: December 19, 2013
    Applicant: XEROX CORPORATION
    Inventors: Bradley James GERNER, Peter J. NYSTROM, Bryan R. DOLAN
  • Process for adding thermoset layer to piezoelectric printhead
    Patent number: 8608293
    Abstract: Disclosed is a process for preparing an ink jet printhead which comprises: (a) providing a diaphragm plate having a plurality of piezoelectric transducers bonded thereto; (b) aligning an electrical circuit board having a fill joint with the piezoelectric transducers and temporarily attaching the electrical circuit board to the piezoelectric transducers, thereby creating a layered structure having interstitial spaces between the diaphragm plate, the piezoelectric transducers, and the electrical circuit board; (c) applying a thermoset polymer through the fill joint and allowing it to fill the interstitial spaces via capillary action; and (d) curing the thermoset polymer to form an interstitial polymer layer.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: December 17, 2013
    Assignee: Xerox Corporation
    Inventors: Gary D Redding, Bryan R Dolan, Mark A Cellura, Peter J Nystrom
  • SCREEN PRINTED JET STACK HEATER
    Publication number: 20130321532
    Abstract: Apparatus and methods for heating a printer jet stack. The apparatus includes a first layer and a second layer disposed generally parallel to the first layer. The apparatus also includes a heating layer including a thermal epoxy configured to generate heat when an electrical current is applied thereto. The heating layer is disposed between and bonds together the first layer and the second layer.
    Type: Application
    Filed: May 29, 2012
    Publication date: December 5, 2013
    Applicant: XEROX CORPORATION
    Inventors: Bradley James Gerner, Peter J. Nystrom, Andrew W. Hays