Patents by Inventor ELIF KARATAY
ELIF KARATAY 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: 11909052Abstract: A method and apparatus are described for forming a multilayer assembly. The method includes adhering first and second catalyst layers to opposed sides of a polymer membrane. At least one of the first catalyst layer, the second catalyst layer, and the polymer membrane is formed by filament extension atomization of a fluid material to form atomized droplets that are sprayed to form the respective membrane or layer.Type: GrantFiled: June 30, 2021Date of Patent: February 20, 2024Assignee: XEROX CORPORATIONInventors: Elif Karatay, Kathryn F. Murphy
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Patent number: 11876268Abstract: A polymer electrolyte membrane includes an ion-conducting polymeric electrolyte material and platelets, distributed through the polymeric electrolyte material. The platelets have an aspect ratio of length to thickness of at least 2:1. The platelets are aligned generally parallel to a length of the membrane. The platelets can be functionalized with free radical scavengers, or other moieties, to extend the lifetime of the membrane or of a membrane electrode assembly incorporating the membrane.Type: GrantFiled: June 25, 2021Date of Patent: January 16, 2024Assignee: XEROX CORPORATIONInventors: Elif Karatay, Kathryn F. Murphy, Mahati Chintapalli
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Patent number: 11827037Abstract: A laser imager for a printing system, comprising a plurality of independently addressable surface emitting lasers arranged in a linear array on a common substrate chip and including a common cathode and a dedicated control channel associated with an address trace line for each laser of the plurality of independently addressable surface emitting lasers, and optical elements arranged in a linear lens array configured to capture and focus light from the plurality of independently addressable surface emitting lasers onto a imaging member, wherein the plurality of independently addressable surface emitting lasers arranged in a linear array and the optical elements arranged in a linear lens array operate together to image the imaging member.Type: GrantFiled: August 23, 2021Date of Patent: November 28, 2023Assignee: Xerox CorporationInventors: Joerg Martini, Christopher Chua, Zhihong Yang, Mark Teepe, Patrick Y. Maeda, Sourobh Raychaudhuri, Elif Karatay, Noble M. Johnson, David K. Biegelsen, Joseph Lee
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Publication number: 20230264140Abstract: A system comprises an electrodialysis apparatus, which includes first and second reservoirs, wherein a salt concentration in the first reservoir reduces below a threshold concentration and salt concentration in the second reservoir increases during an operation mode. A first electrode comprises a first solution of a first redox-active electrolyte material, and a second electrode comprises a second solution of a second redox-active electrolyte material. In a first reversible redox reaction between the first electrode and first electrolyte material at least one ion is accepted from the first reservoir, and in a second reversible redox reaction between the second electrode and second electrolyte material at least one ion is driven into the second reservoir. A first type of membrane is disposed between the first and second reservoirs, and a second type of membrane, different from the first type, is disposed between the respective electrodes and reservoirs.Type: ApplicationFiled: April 11, 2023Publication date: August 24, 2023Inventors: Eugene S. Beh, Jessica Louis Baker Rivest, Michael Benedict, Elif Karatay
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Patent number: 11732378Abstract: A system to electrohydrodynamically pattern a material includes a first electrode having a first voltage, a second electrode having a second voltage that is different from the first voltage, one or more materials to be patterned residing between the first electrode and the second electrode, a gap between at least one surface of at least one of the materials to be patterned and one of the first or second electrodes, at least one patterning material in the gap, wherein the patterning material is a material other than air, and at least one filling material filling any remainder of the gap.Type: GrantFiled: October 2, 2019Date of Patent: August 22, 2023Inventors: Michael Benedict, David Mathew Johnson, Elif Karatay, Eric Weflen, Ravi Neelakantan
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Patent number: 11648506Abstract: A system comprises an electrodialysis apparatus, which includes first and second reservoirs, wherein a salt concentration in the first reservoir reduces below a threshold concentration and salt concentration in the second reservoir increases during an operation mode. A first electrode comprises a first solution of a first redox-active electrolyte material, and a second electrode comprises a second solution of a second redox-active electrolyte material. In a first reversible redox reaction between the first electrode and first electrolyte material at least one ion is accepted from the first reservoir, and in a second reversible redox reaction between the second electrode and second electrolyte material at least one ion is driven into the second reservoir. A first type of membrane is disposed between the first and second reservoirs, and a second type of membrane, different from the first type, is disposed between the respective electrodes and reservoirs.Type: GrantFiled: November 26, 2018Date of Patent: May 16, 2023Assignee: Palo Alto Research Center IncorporatedInventors: Eugene S. Beh, Jessica Louis Baker Rivest, Michael Benedict, Elif Karatay
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Publication number: 20230055149Abstract: A laser imager for a printing system, comprising a plurality of independently addressable surface emitting lasers arranged in a linear array on a common substrate chip and including a common cathode and a dedicated control channel associated with an address trace line for each laser of the plurality of independently addressable surface emitting lasers, and optical elements arranged in a linear lens array configured to capture and focus light from the plurality of independently addressable surface emitting lasers onto a imaging member, wherein the plurality of independently addressable surface emitting lasers arranged in a linear array and the optical elements arranged in a linear lens array operate together to image the imaging member.Type: ApplicationFiled: August 23, 2021Publication date: February 23, 2023Inventors: Joerg Martini, Christopher Chua, Zhihong Yang, Mark Teepe, Patrick Y. Maeda, Sourobh Raychaudhuri, Elif Karatay, Noble M. Johnson, David K. Biegelsen, Joseph Lee
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Publication number: 20230056416Abstract: A method of transferring a semiconductor epi layer onto a metal host substrate is described. An epi layer of a semiconductor chip (e.g., semiconductor laser array) including a substrate can be mounted onto a planar handle wafer with an adhesive, wherein a backside of the substrate faces upward and away from the epi layer and the planar handle wafer. The backside of the substrate can be treated to substantially remove the substrate, while leaving the epi layer undamaged (e.g., by polishing to where no more than 20 micrometers of the substrate remains). Metal can be formed on the treated backside resulting in a metalized backside. The planar handle wafer can then be removed from the epi layer by dissolving the adhesive with a solvent, wherein a modified semiconductor chip remains. The semiconductor chip can be annealed to form a backside ohmic contact interface. The semiconductor chip can then be attached to a mechanical block by the ohmic contact interface.Type: ApplicationFiled: August 23, 2021Publication date: February 23, 2023Inventors: Christopher Chua, Joerg Martini, Mark Teepe, Elif Karatay
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Publication number: 20230006217Abstract: A method and apparatus are described for forming a multilayer assembly. The method includes adhering first and second catalyst layers to opposed sides of a polymer membrane. At least one of the first catalyst layer, the second catalyst layer, and the polymer membrane is formed by filament extension atomization of a fluid material to form atomized droplets that are sprayed to form the respective membrane or layer.Type: ApplicationFiled: June 30, 2021Publication date: January 5, 2023Applicant: Palo Alto Research Center IncorporatedInventors: Elif Karatay, Kathryn F. Murphy
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Publication number: 20220416283Abstract: A polymer electrolyte membrane includes an ion-conducting polymeric electrolyte material and platelets, distributed through the polymeric electrolyte material. The platelets have an aspect ratio of length to thickness of at least 2:1. The platelets are aligned generally parallel to a length of the membrane. The platelets can be functionalized with free radical scavengers, or other moieties, to extend the lifetime of the membrane or of a membrane electrode assembly incorporating the membrane.Type: ApplicationFiled: June 25, 2021Publication date: December 29, 2022Applicant: Palo Alto Research Center IncorporatedInventors: Elif Karatay, Kathryn F. Murphy, Mahati Chintapalli
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Patent number: 11249941Abstract: A method of storing digital data in non-biological sequence-controlled polymers includes converting a digital data file into a monomer sequence, synthesizing polymer chains according to the monomer sequence, and encapsulating the polymer chains into microfluidic droplets and providing the microfluidic droplets with addresses. A polymer data storage system has a first converter to convert digital data to a polymer sequence, a polymer synthesizer to produce polymer chains according to a pre-determined monomer sequence, a fluidic encapsulation system to encapsulate the polymer chains in microfluidic droplets and to apply addressing materials to the microfluidic droplets, a storage for storing the microfluidic droplets, a droplet sorting system having at least an actuator to sort the droplets, a sequencer to derive the polymer sequence from the polymer chains contained in the droplets, and a second converter to convert the polymer sequence to digital data.Type: GrantFiled: December 21, 2018Date of Patent: February 15, 2022Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Jerome Unidad, David Mathew Johnson, Elif Karatay, Mahati Chintapalli
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Publication number: 20210370228Abstract: Air flows across an air-liquid interface such that liquid desiccant flowing through the interface absorbs water from the air and is thereby diluted to form an output stream. The output stream is circulated through an electrodialytic stack having a central ionic exchange membrane and first and second outer ionic exchange membranes. A redox shuttle loop circulates around the first and second outer ionic exchange membranes. A voltage is applied across the electrodialytic stack, which regenerates the liquid desiccant.Type: ApplicationFiled: August 12, 2021Publication date: December 2, 2021Inventors: Michael Benedict, Eugene S. Beh, Elif Karatay
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Patent number: 11185823Abstract: A system includes an electrodialysis device with a salinate chamber through which a salinate stream flows. A desalinate chamber is separated from the salinate chamber by a central, ion-selective membrane. A desalinate stream flows through the desalinate chamber. An anolyte chamber and a catholyte chamber are on opposite outer sides of the salinate and desalinate chambers and separated therefrom by first and second ionic exchange membranes. A solvent exchange interface is in contact on a first side with the salinate stream and is in contact a media flow on a second side. The solvent exchange interface moves a solvent from the media flow to the salinate stream.Type: GrantFiled: April 9, 2019Date of Patent: November 30, 2021Assignee: Palo Alto Research Center IncorporatedInventors: Eugene S. Beh, Michael Benedict, Elif Karatay, Jessica Louis Baker Rivest
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Patent number: 11117090Abstract: Air flows across an air-liquid interface such that liquid desiccant flowing through the interface absorbs water from the air and is thereby diluted to form an output stream. The output stream is circulated through an electrodialytic stack having a central ionic exchange membrane and first and second outer ionic exchange membranes. A redox shuttle loop circulates around the first and second outer ionic exchange membranes. A voltage is applied across the electrodialytic stack, which regenerates the liquid desiccant.Type: GrantFiled: November 26, 2018Date of Patent: September 14, 2021Assignee: Palo Alto Research Center IncorporatedInventors: Michael Benedict, Eugene S. Beh, Elif Karatay
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Patent number: 11015875Abstract: A solution flows through a salinate chamber and a desalinate chamber of an electrochemical cell. Solutes are moved from the desalinate chamber to the salinate chamber to create respective solvent and concentrate streams from the desalinate and salinate chambers. The concentrate stream flows to a recombination cell where it is combined with a solvent. The combination causes at least one of an absorption of heat within the recombination cell and emission of heat from the recombination cell.Type: GrantFiled: April 17, 2019Date of Patent: May 25, 2021Assignee: Palo Alto Research Center IncorporatedInventors: Michael Benedict, Elif Karatay, Eugene S. Beh, Jessica Louis Baker Rivest
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Publication number: 20210102305Abstract: A system to electrohydrodynamically pattern a material includes a first electrode having a first voltage, a second electrode having a second voltage that is different from the first voltage, one or more materials to be patterned residing between the first electrode and the second electrode, a gap between at least one surface of at least one of the materials to be patterned and one of the first or second electrodes, at least one patterning material in the gap, wherein the patterning material is a material other than air, and at least one filling material filling any remainder of the gap.Type: ApplicationFiled: October 2, 2019Publication date: April 8, 2021Inventors: MICHAEL BENEDICT, DAVID MATHEW JOHNSON, ELIF KARATAY, ERIC WEFLEN, RAVI NEELAKANTAN
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Patent number: 10953425Abstract: An aerosol creation system can include a pair of counter-rotating rollers configured to be positioned adjacent each other and define a nip between each other, a fluid source configured to provide a fluid to the nip, a driving element configured to drive the pair of counter-rotating rollers to rotate in counter rotation with respect to each other and cause the fluid to be drawn through the nip, and a collection shell configured to be positioned substantially around the pair of counter-rotating rollers, the collection shell having a nozzle configured to allow passage of the fluid from the nip.Type: GrantFiled: April 25, 2018Date of Patent: March 23, 2021Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Herwin Jerome Unidad, Ravi Neelakantan, Jamie Kalb, Elif Karatay
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Publication number: 20200333086Abstract: A solution flows through a salinate chamber and a desalinate chamber of an electrochemical cell. Solutes are moved from the desalinate chamber to the salinate chamber to create respective solvent and concentrate streams from the desalinate and salinate chambers. The concentrate stream flows to a recombination cell where it is combined with a solvent. The combination causes at least one of an absorption of heat within the recombination cell and emission of heat from the recombination cell.Type: ApplicationFiled: April 17, 2019Publication date: October 22, 2020Inventors: Michael Benedict, Elif Karatay, Eugene S. Beh, Jessica Louis Baker Rivest
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Publication number: 20200201812Abstract: A method of storing digital data in non-biological sequence-controlled polymers includes converting a digital data file into a monomer sequence, synthesizing polymer chains according to the monomer sequence, and encapsulating the polymer chains into microfluidic droplets and providing the microfluidic droplets with addresses. A polymer data storage system has a first converter to convert digital data to a polymer sequence, a polymer synthesizer to produce polymer chains according to a pre-determined monomer sequence, a fluidic encapsulation system to encapsulate the polymer chains in microfluidic droplets and to apply addressing materials to the microfluidic droplets, a storage for storing the microfluidic droplets, a droplet sorting system having at least an actuator to sort the droplets, a sequencer to derive the polymer sequence from the polymer chains contained in the droplets, and a second converter to convert the polymer sequence to digital data.Type: ApplicationFiled: December 21, 2018Publication date: June 25, 2020Inventors: JEROME UNIDAD, DAVID MATHEW JOHNSON, ELIF KARATAY, MAHATI CHINTAPALLI
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Publication number: 20200164302Abstract: Air flows across an air-liquid interface such that liquid desiccant flowing through the interface absorbs water from the air and is thereby diluted to form an output stream. The output stream is circulated through an electrodialytic stack having a central ionic exchange membrane and first and second outer ionic exchange membranes. A redox shuttle loop circulates around the first and second outer ionic exchange membranes. A voltage is applied across the electrodialytic stack, which regenerates the liquid desiccant.Type: ApplicationFiled: November 26, 2018Publication date: May 28, 2020Inventors: Michael Benedict, Eugene S. Beh, Elif Karatay