Patents by Inventor Adrien Pierre
Adrien Pierre 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: 11963764Abstract: A flexible oximeter device for measuring pulse and blood oxygen saturation in tissue includes a first array of first light emitting elements that emit red light, a second array of second light emitting elements that emit green light or near-infrared (NIR) light and an array of sensor elements arranged on at least one flexible substrate. Each sensor element is configured to detect red and green or NIR light, and to output a signal representing an amount of red or green or NIR light detected. The first and second arrays and the array of sensor elements form a plurality of interleaved measurement pixels, each pixel comprising one of the first light emitting elements and a corresponding sensor element, and one of the second light emitting elements and a different corresponding sensor element.Type: GrantFiled: November 23, 2020Date of Patent: April 23, 2024Assignee: The Regents of the University of CaliforniaInventors: Yasser Khan, Donggeon Han, Adrien Pierre, Jonathan Ting, Xingchun Wang, Claire Meyer Lochner, Ana Arias
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Publication number: 20240084876Abstract: A planet carrier for a speed reducer of an aircraft turbomachine, the planet carrier including a cage carrier and a cage. The cage can have two parts: a first part having a wall and bridges, these bridges projecting axially from a face of this wall and including first axial ends connected to this face and second free axial ends; and a second part having another of the walls, this other wall including a face to which the free ends of the bridges are applied. The two parts of the cage can be attached together by screws.Type: ApplicationFiled: September 6, 2023Publication date: March 14, 2024Applicant: SAFRAN TRANSMISSION SYSTEMSInventors: Guillaume Pierre MOULY, Guillaume Julien BECK, Patrice Julien PTASZYNSKI, Jean-Pierre SEREY, Adrien Louis SIMON
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Publication number: 20240084738Abstract: An aircraft turbomachine including a mechanical reduction gear including one sun gear, a ring gear, planet gears which are meshed with the sun gear and the ring gear, each planet gear including a first toothing for meshing with the sun gear, and a second toothing for meshing with the ring gear, the first toothing of each planet gear having a diameter greater than that of the second toothing of the planet gear, and a planet carrier, wherein the sun gear is coupled to a first rotor shaft of the turbomachine, the planet carrier is coupled to a second rotor shaft of the turbomachine, the ring gear is fixed to a stator of the turbomachine.Type: ApplicationFiled: September 12, 2023Publication date: March 14, 2024Inventors: Guillaume Pierre MOULY, Guillaume Julien BECK, Jordane Emile Andre PELTIER, Jean-Pierre SEREY, Adrien Louis SIMON
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Patent number: 11919260Abstract: A process for shaping, by compaction, a fibrous structure obtained by three-dimensional or multilayer weaving between a plurality of layers of warp yarns and a plurality of layers of weft yarns. The yarns of each plurality of layers of warp yarns and layers of weft yarns are coated with a sizing composition. The shaping includes a pre-compaction stage followed by a stage of final compaction of the fibrous structure. During pre-compaction and final compaction, the fibrous structure is at a temperature greater than or equal to the softening temperature of the sizing composition. The process further includes the cooling of the fibrous preform obtained after final compaction of the fibrous structure.Type: GrantFiled: August 27, 2019Date of Patent: March 5, 2024Assignee: SAFRANInventors: Christophe Ravey, Olivier Foussard, Nicolas Pierre Lanfant, Didier Payen, Adrien Touze, Romain Venat
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Publication number: 20210393176Abstract: A flexible oximeter device for measuring pulse and blood oxygen saturation in tissue includes a first array of first light emitting elements that emit red light, a second array of second light emitting elements that emit green light or near-infrared (NIR) light and an array of sensor elements arranged on at least one flexible substrate. Each sensor element is configured to detect red and green or NIR light, and to output a signal representing an amount of red or green or NIR light detected. The first and second arrays and the array of sensor elements form a plurality of interleaved measurement pixels, each pixel comprising one of the first light emitting elements and a corresponding sensor element, and one of the second light emitting elements and a different corresponding sensor element.Type: ApplicationFiled: November 23, 2020Publication date: December 23, 2021Inventors: Yasser Khan, Donggeon Han, Adrien Pierre, Jonathan Ting, Xingchun Wang, Claire Meyer Lochner, Ana Arias
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Patent number: 11174781Abstract: The present invention relates to a powerplant of an aircraft including at least one twin-spool gas generator of longitudinal axis (XX), at least one main fan arranged upstream of the gas generator on the longitudinal axis (XX) and driven in rotation by the gas generator, the main fan being shrouded with a main fan housing; and at least one auxiliary fan with axis (XY, XY?) offset relative to the longitudinal axis (XX) and driven by the gas generator, the auxiliary fan being shrouded with an auxiliary fan housing, the gas generator including at least one low-pressure compressor and a low-pressure turbine connected by a low-pressure shaft, the low-pressure turbine driving in rotation the main fan and the auxiliary fan via at least one power transmission system including a differential gear system incorporating a bevel gear.Type: GrantFiled: October 5, 2016Date of Patent: November 16, 2021Assignee: SAFRAN AIRCRAFT ENGINESInventors: Laurent Soulat, Kevin Morgane Lemarchand, Tewfik Boudebiza, Gilles Alain Charier, Nathalie Nowakowski, Augustin Marc Michel Curlier, Adrien Pierre Jean Pertat, Pierre-Alain Jean Philippe Reigner
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Patent number: 11143615Abstract: A capacitive relative humidity sensor includes a first electrode and a second electrode, where at least the one of the electrodes is a water-permeable electrode. The electrodes act in conjunction with a water-sensitive hygroscopic dielectric material. The design enables low-cost and simple fabrication of fast-responding and stable relative humidity sensors using digital fabrication techniques.Type: GrantFiled: October 31, 2018Date of Patent: October 12, 2021Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Adrien Pierre, Sean Emerson Doris, David Eric Schwartz
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Patent number: 11127932Abstract: Methods for simultaneously forming two or more different colored material layers on a substrate. include performing surface energy patterning (SEP) to define a first, hydrophobic region and a second, hydrophilic region on the substrate, applying first and second materials on the second region, wherein the first material comprises a material having a first color, and wherein the second material comprises a material having a second color, and doctor blade coating the first and second materials simultaneously to form first and second material layers on the substrate. The methods are particularly useful for making multi-color light emitting and detecting components such as LEDs and OPDs.Type: GrantFiled: September 3, 2019Date of Patent: September 21, 2021Assignee: The Regents of the University of CaliforniaInventors: Ana Claudia Arias, Donggeon Han, Claire Meyer Lochner, Adrien Pierre
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Publication number: 20210265598Abstract: Methods for simultaneously forming two or more different colored material layers on a substrate. include performing surface energy patterning (SEP) to define a first, hydrophobic region and a second, hydrophilic region on the substrate, applying first and second materials on the second region, wherein the first material comprises a material having a first color, and wherein the second material comprises a material having a second color, and doctor blade coating the first and second materials simultaneously to form first and second material layers on the substrate. The methods are particularly useful for making multi-color light emitting and detecting components such as LEDs and OPDs.Type: ApplicationFiled: September 3, 2019Publication date: August 26, 2021Inventors: Ana Claudia Arias, Donggeon Han, Claire Meyer Lochner, Adrien Pierre
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Publication number: 20210210796Abstract: A system that includes an energy device having an active region configured to generate or consume electrical energy provided by an electrical current is discussed. A current limiter is disposed between the energy device and a current collector layer. The current limiter controls the current flow between the energy device and the current collector layer. A plurality of electrochemical transistors (ECTs) are arranged in an array such that each ECT in the array provides localized current control for the energy device. Each ECT includes a gate electrode, a drain electrode, a source electrode, and a channel disposed between the drain and the source electrodes. An electrolyte electrically couples the gate electrode to the channel such that an electrical signal at the gate electrode controls electrical conductivity of the channel. The current collector layer is a shared drain or source electrode for the ECTs.Type: ApplicationFiled: March 22, 2021Publication date: July 8, 2021Inventors: Sean E. Doris, Warren B. Jackson, Adrien Pierre
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Patent number: 11015521Abstract: An aircraft propulsion assembly comprising at least a main turbine mounted along a longitudinal axis, at least one main fan arranged upstream of the main turbine along the longitudinal axis and driven in rotation by the said main turbine, the said main fan being ducted by a main fan casing, an auxiliary turbine mounted along the longitudinal axis, the auxiliary turbine being independent of the main turbine, an auxiliary fan of axis offset with respect to the longitudinal axis and driven by the auxiliary turbine, the auxiliary fan being ducted by an auxiliary fan casing, the main casing being separate and distinct from the auxiliary casing so as respectively to generate a main secondary flow and an auxiliary secondary flow which remain independent of one another until they are discharged into the atmosphere.Type: GrantFiled: October 5, 2016Date of Patent: May 25, 2021Assignee: SAFRAN AIRCRAFT ENGINESInventors: Augustin Marc Michel Curlier, Adrien Pierre Jean Pertat, Pierre-Alain Jean Philippe Reigner, Laurent Soulat, Kevin Morgane Lemarchand, Tewfik Boudebiza, Gilles Alain Charier, Nathalie Nowakowski
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Patent number: 10971765Abstract: A system that includes an energy device having an active region configured to generate or consume electrical energy provided by an electrical current is discussed. A current limiter is disposed between the energy device and a current collector layer. The current limiter controls the current flow between the energy device and the current collector layer. A plurality of electrochemical transistors (ECTs) are arranged in an array such that each ECT in the array provides localized current control for the energy device. Each ECT includes a gate electrode, a drain electrode, a source electrode, and a channel disposed between the drain and the source electrodes. An electrolyte electrically couples the gate electrode to the channel such that an electrical signal at the gate electrode controls electrical conductivity of the channel. The current collector layer is a shared drain or source electrode for the ECTs.Type: GrantFiled: October 5, 2018Date of Patent: April 6, 2021Assignee: Palo Alto Research Center IncorporatedInventors: Sean E. Doris, Warren B. Jackson, Adrien Pierre
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Patent number: 10794855Abstract: The following relates generally to ion sensing using organic electrochemical transistors (OECTs). In one aspect, a device comprises: an amplification portion including an OECT; a feedback portion that receives a differential voltage from the amplification portion and outputs a feedback signal; and a readout portion which receives the feedback signal and outputs an output voltage.Type: GrantFiled: August 30, 2018Date of Patent: October 6, 2020Assignee: Palo Alto Research Center IncorporatedInventors: Adrien Pierre, Sean Emerson Doris, Robert A. Street
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Publication number: 20200132616Abstract: A capacitive relative humidity sensor includes a first electrode and a second electrode, where at least the one of the electrodes is a water-permeable electrode. The electrodes act in conjunction with a water-sensitive hygroscopic dielectric material. The design enables low-cost and simple fabrication of fast-responding and stable relative humidity sensors using digital fabrication techniques.Type: ApplicationFiled: October 31, 2018Publication date: April 30, 2020Applicant: Palo Alto Research Center IncorporatedInventors: Adrien Pierre, Sean Emerson Doris, David Eric Schwartz
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Publication number: 20200112066Abstract: A system that includes an energy device having an active region configured to generate or consume electrical energy provided by an electrical current is discussed. A current limiter is disposed between the energy device and a current collector layer. The current limiter controls the current flow between the energy device and the current collector layer. A plurality of electrochemical transistors (ECTs) are arranged in an array such that each ECT in the array provides localized current control for the energy device. Each ECT includes a gate electrode, a drain electrode, a source electrode, and a channel disposed between the drain and the source electrodes. An electrolyte electrically couples the gate electrode to the channel such that an electrical signal at the gate electrode controls electrical conductivity of the channel. The current collector layer is a shared drain or source electrode for the ECTs.Type: ApplicationFiled: October 5, 2018Publication date: April 9, 2020Inventors: Sean E. Doris, Warren B. Jackson, Adrien Pierre
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Publication number: 20200072786Abstract: The following relates generally to ion sensing using organic electrochemical transistors (OECTs). In one aspect, a device comprises: an amplification portion including an OECT; a feedback portion that receives a differential voltage from the amplification portion and outputs a feedback signal; and a readout portion which receives the feedback signal and outputs an output voltage.Type: ApplicationFiled: August 30, 2018Publication date: March 5, 2020Applicant: Palo Alto Research Center IncorporatedInventors: Adrien Pierre, Sean Emerson Doris, Robert A. Street
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Patent number: 10548519Abstract: Pulse oximeter devices include a first light emitting element that emits red light, a second light emitting element that emits green light or IR light; and a sensor element that detects red and green (or IR) light and that outputs signals representing detected red and green (or IR) light. The pulse oximeter device further includes a flexible substrate, wherein the first light emitting element, the second light emitting element and the sensor element are formed on the flexible substrate. The sensor element is configured to detect the emitted red and green light transmitted through tissue containing blood, and in certain aspects, the sensor element is configured to detect the emitted red and green (or IR) light reflected by tissue containing blood. A signal processing element (e.g., a processor) receives and processes the signals representing detected red and green (or IR) light output by the sensor element to produce signals representing blood oxygenation content.Type: GrantFiled: January 24, 2017Date of Patent: February 4, 2020Assignee: The Regents of the University of CaliforniaInventors: Ana Claudia Arias, Claire Lochner, Adrien Pierre, Yasser Khan
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Publication number: 20200006713Abstract: Methods for simultaneously forming two or more different colored material layers on a substrate. include performing surface energy patterning (SEP) to define a first, hydrophobic region and a second, hydrophilic region on the substrate, applying first and second materials on the second region, wherein the first material comprises a material having a first color, and wherein the second material comprises a material having a second color, and doctor blade coating the first and second materials simultaneously to form first and second material layers on the substrate. The methods are particularly useful for making multi-color light emitting and detecting components such as LEDs and OPDs.Type: ApplicationFiled: September 3, 2019Publication date: January 2, 2020Inventors: Ana Claudia Arias, Donggeon Han, Claire Meyer Lochner, Adrien Pierre
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Patent number: 10424751Abstract: One embodiment provides electronic device, which can include at least two organic electrochemical transistors (OECTs). A respective OECT includes a conductive channel, a gate electrically coupled to the conductive channel via a first electrolyte, and source and drain electrodes separated from each other by the conductive channel. The electrochemical potentials of redox-couples of the at least two organic electrochemical transistors are different, thereby resulting in the at least two organic electrochemical transistors having different threshold voltages. An alternative embodiment can provide an organic electrochemical transistor (OECT). The OECT can include a conductive channel, a gate electrically coupled to the conductive channel via a first electrolyte, and source and drain electrodes separated from each other by the conductive channel. The gate can include a conductive current collector and at least one redox-couple.Type: GrantFiled: November 1, 2017Date of Patent: September 24, 2019Assignee: PALO ALTO RESEARCH CENTER INCORPORATEDInventors: Sean E. Doris, Adrien Pierre
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Publication number: 20190131555Abstract: One embodiment provides electronic device, which can include at least two organic electrochemical transistors (OECTs). A respective OECT includes a conductive channel, a gate electrically coupled to the conductive channel via a first electrolyte, and source and drain electrodes separated from each other by the conductive channel. The electrochemical potentials of redox-couples of the at least two organic electrochemical transistors are different, thereby resulting in the at least two organic electrochemical transistors having different threshold voltages. An alternative embodiment can provide an organic electrochemical transistor (OECT). The OECT can include a conductive channel, a gate electrically coupled to the conductive channel via a first electrolyte, and source and drain electrodes separated from each other by the conductive channel. The gate can include a conductive current collector and at least one redox-couple.Type: ApplicationFiled: November 1, 2017Publication date: May 2, 2019Applicant: Palo Alto Research Center IncorporatedInventors: Sean E. Doris, Adrien Pierre