Patents by Inventor Steven H. Barss
Steven H. Barss 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: 20240042755Abstract: A fluid ejection apparatus includes a plurality of fluid ejectors. Each fluid ejector includes a pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber. The fluid ejection apparatus includes a feed channel fluidically connected to each pumping chamber; and at least one compliant structure formed in a surface of the feed channel. The at least one compliant structure has a lower compliance than the surface of the feed channel.Type: ApplicationFiled: October 12, 2023Publication date: February 8, 2024Inventors: Christoph Menzel, Kevin von Essen, Steven H. Barss, Mats G. Ottosson, Darren T. Imai
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Patent number: 11865837Abstract: A fluid ejection apparatus includes a plurality of fluid ejectors. Each fluid ejector includes a pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber. The fluid ejection apparatus includes a feed channel fluidically connected to each pumping chamber; and at least one compliant structure formed in a surface of the feed channel. The at least one compliant structure has a lower compliance than the surface of the feed channel.Type: GrantFiled: October 13, 2022Date of Patent: January 9, 2024Assignee: FUJIFILM Dimatix, Inc.Inventors: Christoph Menzel, Kevin von Essen, Steven H. Barss, Mats G. Ottosson, Darren T. Imai
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Publication number: 20230036902Abstract: A fluid ejection apparatus includes a plurality of fluid ejectors. Each fluid ejector includes a pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber. The fluid ejection apparatus includes a feed channel fluidically connected to each pumping chamber; and at least one compliant structure formed in a surface of the feed channel. The at least one compliant structure has a lower compliance than the surface of the feed channel.Type: ApplicationFiled: October 13, 2022Publication date: February 2, 2023Inventors: Christoph Menzel, Kevin von Essen, Steven H. Barss, Mats G. Ottosson, Darren T. Imai
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Patent number: 11498330Abstract: A fluid ejection apparatus includes a plurality of fluid ejectors. Each fluid ejector includes a pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber. The fluid ejection apparatus includes a feed channel fluidically connected to each pumping chamber; and at least one compliant structure formed in a surface of the feed channel. The at least one compliant structure has a lower compliance than the surface of the feed channel.Type: GrantFiled: February 8, 2021Date of Patent: November 15, 2022Assignee: FUJIFILM Dimatix, Inc.Inventors: Christoph Menzel, Kevin von Essen, Steven H. Barss, Mats G. Ottosson, Darren T. Imai
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Publication number: 20210154994Abstract: A fluid ejection apparatus includes a plurality of fluid ejectors. Each fluid ejector includes a pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber. The fluid ejection apparatus includes a feed channel fluidically connected to each pumping chamber; and at least one compliant structure formed in a surface of the feed channel. The at least one compliant structure has a lower compliance than the surface of the feed channel.Type: ApplicationFiled: February 8, 2021Publication date: May 27, 2021Applicant: FUJIFILM Dimatix, Inc.Inventors: Christoph Menzel, Kevin von Essen, Steven H. Barss, Mats G. Ottosson, Darren T. Imai
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Patent number: 10913264Abstract: A fluid ejection apparatus includes a plurality of fluid ejectors. Each fluid ejector includes a pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber. The fluid ejection apparatus includes a feed channel fluidically connected to each pumping chamber; and at least one compliant structure formed in a surface of the feed channel. The at least one compliant structure has a lower compliance than the surface of the feed channel.Type: GrantFiled: June 20, 2018Date of Patent: February 9, 2021Assignee: FUJIFILM Dimatix, Inc.Inventors: Christoph Menzel, Kevin von Essen, Steven H. Barss, Mats G. Ottosson, Darren T. Imai
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Patent number: 10538114Abstract: A system includes a print head including multiple nozzles formed in a bottom surface of the print head. The nozzles are configured to eject a liquid onto a substrate. The system includes a gas flow module configured to provide a flow of gas through a gap between the bottom surface of the print head and the substrate. The gas flow module can include one or more gas nozzles configured to inject gas into the gap. The gas flow module can be configured to apply a suction to the gap.Type: GrantFiled: January 17, 2019Date of Patent: January 21, 2020Assignee: FUJIFILM Dimatix, Inc.Inventors: Daniel W. Barnett, Steven H. Barss, Jaan T. Laaspere, Christoph Menzel, Matthew Aubrey
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Publication number: 20190152233Abstract: A system includes a print head including multiple nozzles formed in a bottom surface of the print head. The nozzles are configured to eject a liquid onto a substrate. The system includes a gas flow module configured to provide a flow of gas through a gap between the bottom surface of the print head and the substrate. The gas flow module can include one or more gas nozzles configured to inject gas into the gap. The gas flow module can be configured to apply a suction to the gap.Type: ApplicationFiled: January 17, 2019Publication date: May 23, 2019Applicant: FUJIFILM Dimatix, Inc.Inventors: Daniel W. Barnett, Steven H. Barss, Jaan T. Laaspere, Christoph Menzel, Matthew Aubrey
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Patent number: 10183498Abstract: A system includes a print head including multiple nozzles formed in a bottom surface of the print head. The nozzles are configured to eject a liquid onto a substrate. The system includes a gas flow module configured to provide a flow of gas through a gap between the bottom surface of the print head and the substrate. The gas flow module can include one or more gas nozzles configured to inject gas into the gap. The gas flow module can be configured to apply a suction to the gap.Type: GrantFiled: December 1, 2016Date of Patent: January 22, 2019Assignee: FUJIFILM Dimatix, Inc.Inventors: Daniel W. Barnett, Steven H. Barss, Jaan T. Laaspere, Christoph Menzel, Matthew Aubrey
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Publication number: 20180297357Abstract: A fluid ejection apparatus includes a plurality of fluid ejectors. Each fluid ejector includes a pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber. The fluid ejection apparatus includes a feed channel fluidically connected to each pumping chamber; and at least one compliant structure formed in a surface of the feed channel. The at least one compliant structure has a lower compliance than the surface of the feed channel.Type: ApplicationFiled: June 20, 2018Publication date: October 18, 2018Applicant: FUJIFILM Dimatix, Inc.Inventors: Christoph Menzel, Kevin von Essen, Steven H. Barss, Mats G. Ottosson, Darren T. Imai
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Patent number: 10022957Abstract: A fluid ejection apparatus includes a plurality of fluid ejectors. Each fluid ejector includes a pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber. The fluid ejection apparatus includes a feed channel fluidically connected to each pumping chamber; and at least one compliant structure formed in a surface of the feed channel. The at least one compliant structure has a lower compliance than the surface of the feed channel.Type: GrantFiled: April 24, 2015Date of Patent: July 17, 2018Assignee: FUJIFILM Dimatrix, Inc.Inventors: Christoph Menzel, Kevin von Essen, Steven H. Barss, Mats G. Ottosson, Darren T. Imai
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Publication number: 20170129252Abstract: A system includes a print head including multiple nozzles formed in a bottom surface of the print head. The nozzles are configured to eject a liquid onto a substrate. The system includes a gas flow module configured to provide a flow of gas through a gap between the bottom surface of the print head and the substrate. The gas flow module can include one or more gas nozzles configured to inject gas into the gap. The gas flow module can be configured to apply a suction to the gap.Type: ApplicationFiled: December 1, 2016Publication date: May 11, 2017Inventors: Daniel W. Barnett, Steven H. Barss, Jaan T. Laaspere, Christoph Menzel, Matthew Aubrey
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Patent number: 9511605Abstract: A system includes a print head including multiple nozzles formed in a bottom surface of the print head. The nozzles are configured to eject a liquid onto a substrate. The system includes a gas flow module configured to provide a flow of gas through a gap between the bottom surface of the print head and the substrate. The gas flow module can include one or more gas nozzles configured to inject gas into the gap. The gas flow module can be configured to apply a suction to the gap.Type: GrantFiled: June 24, 2015Date of Patent: December 6, 2016Assignee: FUJIFILM Dimatix, Inc.Inventors: Daniel W. Barnett, Steven H. Barss, Jaan T. Laaspere, Christoph Menzel, Matthew Aubrey
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Publication number: 20160311221Abstract: A fluid ejection apparatus includes a plurality of fluid ejectors. Each fluid ejector includes a pumping chamber, and an actuator configured to cause fluid to be ejected from the pumping chamber. The fluid ejection apparatus includes a feed channel fluidically connected to each pumping chamber; and at least one compliant structure formed in a surface of the feed channel. The at least one compliant structure has a lower compliance than the surface of the feed channel.Type: ApplicationFiled: April 24, 2015Publication date: October 27, 2016Inventors: Christoph Menzel, Kevin von Essen, Steven H. Barss, Mats G. Ottosson, Darren T. Imai
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Publication number: 20150375543Abstract: A system includes a print head including multiple nozzles formed in a bottom surface of the print head. The nozzles are configured to eject a liquid onto a substrate. The system includes a gas flow module configured to provide a flow of gas through a gap between the bottom surface of the print head and the substrate. The gas flow module can include one or more gas nozzles configured to inject gas into the gap. The gas flow module can be configured to apply a suction to the gap.Type: ApplicationFiled: June 24, 2015Publication date: December 31, 2015Inventors: Daniel W. Barnett, Steven H. Barss, Jaan T. Laaspere, Christoph Menzel, Matthew Aubrey
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Patent number: 8579397Abstract: Among other things, for ink jetting, a system includes a printhead including at least 25 jets and an imaging device to capture image information for all of the jets simultaneously, the captured image information being useful in analyzing a performance of each of the jets.Type: GrantFiled: September 5, 2008Date of Patent: November 12, 2013Assignee: FUJIFILM Dimatix, Inc.Inventors: Steven H. Barss, William R. Letendre, Jr., Paul A. Hoisington
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Patent number: 8556364Abstract: A method of determining whether a flow path is ready for ejection includes supplying liquid to the flow path, which includes a pumping chamber and a nozzle, after supplying fluid to the flow path, applying energy to an actuator adjacent to the pumping chamber, measuring an electrical characteristic of the actuator to obtain a measured value, and comparing the measured value to a threshold value to determine if the flow path is ready for ejection.Type: GrantFiled: July 1, 2010Date of Patent: October 15, 2013Assignee: FUJIFILM Dimatix, Inc.Inventors: Paul A. Hoisington, Mats G. Ottosson, Steven H. Barss
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Patent number: 8517511Abstract: A fluid ejector head includes a die with a plurality of fluid ejector units, each fluid ejector unit comprising a pumping actuator having a drive electrode, and a manifold that contacts the first side of the die to define a module volume in fluidic communication with a drainage volume. The module volume is defined in part between the manifold and at least a portion of plurality of fluid ejector units, and the drainage volume is located apart from the fluid ejector units. The module volume, in comparison to the drainage volume, has a greater ratio of interior surface area to volume or has a greater percentage of interior surface area covered by a non-wetting coating.Type: GrantFiled: September 13, 2011Date of Patent: August 27, 2013Assignee: FUJIFILM CorporationInventors: Paul A. Hoisington, Steven H. Barss
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Patent number: 8459768Abstract: In general, in one aspect, the invention features a method for driving a droplet ejection device having an actuator, including applying a multipulse waveform that includes two or more drive pulses to the actuator to cause the droplet ejection device to eject a single droplet of a fluid, wherein a frequency of the drive pulses is greater than a natural frequency, fj, of the droplet ejection device.Type: GrantFiled: September 28, 2007Date of Patent: June 11, 2013Assignee: FUJIFILM Dimatix, Inc.Inventors: Robert A. Hasenbein, Paul A. Hoisington, Deane A. Gardner, Steven H. Barss
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Patent number: 8434840Abstract: In general, in one aspect, the invention features a method, including measuring a surface profile of a substrate, generating firing instructions for a droplet ejection device based on the surface profile, and depositing droplets on the substrate with the droplet ejection device according to the instructions.Type: GrantFiled: January 31, 2008Date of Patent: May 7, 2013Assignee: FUJIFILM Dimatix, Inc.Inventor: Steven H. Barss