Patents by Inventor Stan E. Leigh
Stan E. Leigh 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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Publication number: 20220072768Abstract: According to one aspect, there is provided a method of selectively solidifying successive layers of build material in a 3D printing system. The method comprises obtaining data relating to a 3D object to be generated, forming a layer of build material on a build platform, applying to the formed layer a pattern of fusing agent corresponding to a portion of the layer to be solidified to form a layer of the object, applying to the formed layer a pattern of anti-caking agent on portions of the formed layer that are not to be solidified to form a layer of the object, and applying energy to the whole of the formed layer to cause portions of the layer on which fusing agent was applied to heat up, melt, coalesce, and then solidify upon cooling, and to cause portions of the formed layer on which anti-caking agent was applied to control caking of build material in those portions.Type: ApplicationFiled: May 29, 2019Publication date: March 10, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Stan E. Leigh, Karsten N. Wilson, Anthony Holden
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Patent number: 11225070Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes a surface on which a number of nozzles are formed. An electrical interface on the fluidic die establishes an electrical connection between the fluidic die and a fluidic die controller. The electrical interface includes 1) a bond pad disposed within a bond pad region of the surface and 2) an electrical lead coupled to the bend pad to establish an electrical connection between the fluidic die and the fluidic die controller. The fluidic die also includes a beveled edge along an edge of the surface underneath the electrical lead.Type: GrantFiled: January 23, 2018Date of Patent: January 18, 2022Assignee: Hewlett-Packard Development Company, L.P.Inventors: Stan E. Leigh, Kellie Susanne Jensen, Terry McMahon, Donald W. Schulte
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Publication number: 20210170746Abstract: In one example in accordance with the present disclosure, a fluidic die is described. The fluidic die includes a surface on which a number of nozzles are formed. An electrical interface on the fluidic die establishes an electrical connection between the fluidic die and a fluidic die controller. The electrical interface includes 1) a bond pad disposed within a bond pad region of the surface and 2) an electrical lead coupled to the bend pad to establish an electrical connection between the fluidic die and the fluidic die controller. The fluidic die also includes a beveled edge along an edge of the surface underneath the electrical lead.Type: ApplicationFiled: January 23, 2018Publication date: June 10, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Stan E. Leigh, Kellie Susanne Jensen, Terry McMahon, Donald W. Schulte
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Patent number: 10421275Abstract: A fluid ejecting device including a die including a perimeter defined by a first edge, a second edge opposing the first edge, a third edge, and a fourth edge opposing the third edge, wherein the third and fourth edges are disposed at an angle to the first and second edges to form angular corners, an active area including circuitry for controlling the fluid ejecting device to eject fluid, an inactive area positioned between the perimeter and the active area, and a termination ring encircling the active area, the termination ring including sides extending parallel to the first, second, third, and fourth edges and corners coupling adjacent sides, the corners having a corner radius greater than a first distance between the first edge and one of the sides of the termination ring, and a nozzle to eject fluid.Type: GrantFiled: October 30, 2014Date of Patent: September 24, 2019Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Donald W Schulte, Terry McMahon, Tony Fuller, Stan E Leigh
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Publication number: 20170313065Abstract: A fluid ejecting device including a die including a perimeter defined by a first edge, a second edge opposing the first edge, a third edge, and a fourth edge opposing the third edge, wherein the third and fourth edges are disposed at an angle to the first and second edges to form angular corners, an active area including circuitry for controlling the fluid ejecting device to eject fluid, an inactive area positioned between the perimeter and the active area, and a termination ring encircling the active area, the termination ring including sides extending parallel to the first, second, third, and fourth edges and corners coupling adjacent sides, the corners having a corner radius greater than a first distance between the first edge and one of the sides of the termination ring, and a nozzle to eject fluid.Type: ApplicationFiled: October 30, 2014Publication date: November 2, 2017Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Donald W Schulte, Terry McMahon, Tony Fuller, Stan E Leigh
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Patent number: 9782969Abstract: A thermal inkjet printhead may include a passivation layer, a bond pad formed over the passivation layer and insulating strips of a dielectric material formed over the passivation layer on opposite sides of the bond pad.Type: GrantFiled: March 16, 2017Date of Patent: October 10, 2017Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Stan E. Leigh, Terry Mcmahon, Thomas P. Abadilla
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Publication number: 20170190178Abstract: A thermal inkjet printhead may include a passivation layer, a bond pad formed over the passivation layer and insulating strips of a dielectric material formed over the passivation layer on opposite sides of the bond pad.Type: ApplicationFiled: March 16, 2017Publication date: July 6, 2017Inventors: Stan E. Leigh, Terry Mcmahon, Thomas P. Abadilla
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Patent number: 9630410Abstract: A thermal inkjet printhead is described. The thermal inkjet printhead comprising a passivation layer and a plurality of bond pads formed over the passivation layer. The thermal inkjet printhead further comprises a plurality of insulating strips formed over the passivation layer. The insulating strips are formed such that two adjacent bond pads are separated by an insulating strip, from among the plurality of insulating strips. Further, each of the plurality of the insulating strips is of a dielectric material.Type: GrantFiled: January 29, 2014Date of Patent: April 25, 2017Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Stan E. Leigh, Terry Mcmahon, Tom P. Abdilla
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Publication number: 20160346793Abstract: A method to control puddling on a fluid dispense head, comprising limiting the height of a puddle of fluid over a fluid dispensing nozzle while simultaneously limiting the spread of the puddle laterally away from the nozzle.Type: ApplicationFiled: August 8, 2016Publication date: December 1, 2016Inventors: Thomas R. Strand, Jeffrey A. Nielsen, James A. Feinn, Stan E. Leigh
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Publication number: 20160339703Abstract: A thermal inkjet printhead is described. The thermal inkjet printhead comprising a passivation layer and a plurality of bond pads formed over the passivation layer. The thermal inkjet printhead further comprises a plurality of insulating strips formed over the passivation layer. The insulating strips are formed such that two adjacent bond pads are separated by an insulating strip, from among the plurality of insulating strips. Further, each of the plurality of the insulating strips is of a dielectric material.Type: ApplicationFiled: January 29, 2014Publication date: November 24, 2016Applicant: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.Inventors: Stan E. Leigh, Terry Mcmahon, Tom P. Abdilla
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Patent number: 9427752Abstract: Methods and apparatus are provided related to fluid dispensing heads. A dispense head is formed to define a plurality of fluid jetting nozzles and a surface pattern. The surface pattern is characterized by one or more voids extending inward from an outer surface of the dispense head. Fluid puddle formation during operation of the dispense head is limited in volume by way of the surface pattern. Fluid puddle limiting reduces or eliminates dispensing errors to an entity, undesirable artifacts from resulting on a printed media, or similar problems.Type: GrantFiled: September 30, 2011Date of Patent: August 30, 2016Assignee: Hewlett-Packard Development Company, L.P.Inventors: Thomas R Strand, Jeffrey A Nielsen, James A Feinn, Stan E Leigh
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Publication number: 20140217201Abstract: Methods and apparatus are provided related to fluid dispensing heads. A dispense head is formed to define a plurality of fluid jetting nozzles and a surface pattern. The surface pattern is characterized by one or more voids extending inward from an outer surface of the dispense head. Fluid puddle formation during operation of the dispense head is limited in volume by way of the surface pattern. Fluid puddle limiting reduces or eliminates dispensing errors to an entity, undesirable artifacts from resulting on a printed media, or similar problems.Type: ApplicationFiled: September 30, 2011Publication date: August 7, 2014Inventors: Thomas R. Strand, Jeffrey A. Nielsen, James Feinn, Stan E. Leigh
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Patent number: 8460947Abstract: A fluid ejection device includes one or more digital data storage arrays having plural EPROM cells. A method for affirming performance adequacy of EPROM cells in the one or more arrays includes the steps of identifying a reference cell in each array, measuring a selected performance criterion for the reference cells, obtaining a reference criterion value, and evaluating the actual performance of at least one cell in each array with respect to the reference criterion value.Type: GrantFiled: September 13, 2010Date of Patent: June 11, 2013Assignee: Hewlett-Packard Development Company, L.P.Inventors: Stan E Leigh, Kevin Bruce, Joseph M Torgerson, Trudy Benjamin
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Publication number: 20120064644Abstract: A fluid ejection device includes one or more digital data storage arrays having plural EPROM cells. A method for affirming performance adequacy of EPROM cells in the one or more arrays includes the steps of identifying a reference cell in each array, measuring a selected performance criterion for the reference cells, obtaining a reference criterion value, and evaluating the actual performance of at least one cell in each array with respect to the reference criterion value.Type: ApplicationFiled: September 13, 2010Publication date: March 15, 2012Inventors: Stan E. Leigh, Kevin Bruce, Joseph M. Torgerson, Trudy Benjamin
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Patent number: 7815287Abstract: A fluid ejection device includes one or more digital data storage arrays having plural EPROM cells. A method for affirming performance adequacy of EPROM cells in the one or more arrays includes the steps of identifying a reference cell in each array, measuring a selected performance criterion for the reference cells, obtaining a reference criterion value, and evaluating the actual performance of at least one cell in each array with respect to the reference criterion value.Type: GrantFiled: September 24, 2008Date of Patent: October 19, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: Stan E Leigh, Kevin Bruce, Joseph M Torgerson, Trudy Benjamin
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Patent number: 7728829Abstract: One embodiment of a display system includes a control module that controls an adjustable aperture based on a calculated aperture setting and that applies a calculated gain setting to a set of frame data to define a modified set of frame data, an image analysis module that calculates a gain setting and an aperture setting for said set of frame data and forwards said calculated gain setting and said aperture setting to said control module, and a frame data buffer that stores said set of frame data during calculation by said image analysis module.Type: GrantFiled: January 13, 2006Date of Patent: June 1, 2010Assignee: Hewlett-Packard Development Company, L.P.Inventors: David B Meados, Stan E Leigh, Jamie Moore
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Publication number: 20100076727Abstract: A fluid ejection device includes one or more digital data storage arrays having plural EPROM cells. A method for affirming performance adequacy of EPROM cells in the one or more arrays includes the steps of identifying a reference cell in each array, measuring a selected performance criterion for the reference cells, obtaining a reference criterion value, and evaluating the actual performance of at least one cell in each array with respect to the reference criterion value.Type: ApplicationFiled: September 24, 2008Publication date: March 25, 2010Inventors: Stan E. Leigh, Kevin Bruce, Joseph M. Torgerson, Trudy Benjamin
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Patent number: 7586503Abstract: A modulator is controlled in accordance with each sub-frame of a frame of image data. An aiming mechanism is physically adjusted to differently aim each sub-frame. Acoustical noise in physically adjusting the aiming mechanism is reduced.Type: GrantFiled: July 30, 2005Date of Patent: September 8, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: Stan E. Leigh, Arnold W. Larson, P. Guy Howard, Ted W. Barnes
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Publication number: 20080143969Abstract: A system for producing a composite image in a multiple projection system includes at least two projectors, a dynamic image shifting mechanism, associated with at least one of the two projectors, and a controller, connected to control each projector and the image shifting mechanism. Each projector is configured to project a component image to a projection surface at an image refresh rate, and the dynamic image shifting mechanism is configured to shift a projection path of the component image of the at least one projector. The controller is configured to modify image data sent to the at least one projector and to shift the dynamic image shifting device to produce a single composite image comprising the at least two component images.Type: ApplicationFiled: December 15, 2006Publication date: June 19, 2008Inventors: Richard Aufranc, William J. Allen, Stan E. Leigh
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Publication number: 20080094419Abstract: A method of displaying an image with a display device includes receiving image data for the image. Sub-frame shifting parameters are identified based on at least one of image characteristics of the image, system status information, and user-defined parameters. A first plurality of sub-frames corresponding to the image data is generated based on the identified sub-frame shifting parameters. The first plurality of sub-frames is displayed at a first plurality of spatially offset sub-frame display positions using the identified shifting parameters, thereby producing a displayed image.Type: ApplicationFiled: October 24, 2006Publication date: April 24, 2008Inventors: Stan E. Leigh, William J. Allen, Richard Aufranc, Arnold W. Larson