Patents Assigned to Aalto University Foundation
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Patent number: 12286522Abstract: The present invention concerns a material, based on fibrillar, elongated, or disk-like colloidal particles, that has a high scattering efficiency, a method that is suitable for preparing such a material, and the use of such a material. The material can be used as, or as a part of, a pigment, paint or protective coating in various industries, but due to its high scattering, and due to the fact that the material appears white even as a thin membrane, it is an interesting option also in the paper and pulp, cosmetic and medical industries.Type: GrantFiled: September 26, 2018Date of Patent: April 29, 2025Assignees: Aalto University Foundation SR, Cambridge Enterprise LimitedInventors: Matti Toivonen, Olli Ikkala, Silvia Vignolini, Olimpia Domitilla Onelli
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Patent number: 12226839Abstract: Fastening an object onto a lathe, such that the location of the centre of rotation of the object may be adjusted relative to the centre of the lathe axis, wherein the centre of rotation of the object relative to the centre of the lathe may be displaced steplessly and biaxially, according to a predetermined calculation, without removing the object from the chuck.Type: GrantFiled: April 24, 2020Date of Patent: February 18, 2025Assignee: Aalto University Foundation srInventors: Petri Kuosmanen, Raine Viitala, Valtteri Vainio
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Patent number: 12209918Abstract: According to an example aspect of the present invention, there is provided a Coulomb blockade thermometer, comprising a Coulomb blockade thermometer sensor element, a radio-frequency generator configured to feed a radio-frequency signal to a first port of the Coulomb blockade thermometer, and a radio-frequency sensor configured to measure a response of the Coulomb blockade thermometer to the radio-frequency signal from a second port of the Coulomb blockade thermometer to perform a conductance measurement of the Coulomb blockade thermometer, and a bias voltage generator configured to sweep through a bias voltage range during the conductance measurement, performed using the radio-frequency generator, of the Coulomb blockade thermometer.Type: GrantFiled: June 23, 2022Date of Patent: January 28, 2025Assignee: Aalto University Foundation srInventors: Jukka Pekola, Yu-Cheng Chang, Bayan Karimi, Joonas Peltonen
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Patent number: 12157675Abstract: The present invention concerns a process for producing calcium carbonate from a calcium-containing alkaline slag material, the process containing the steps of extracting the alkaline slag material in a series of extraction steps, including at least 2 extraction steps, using extraction solvent(s) containing salt in an aqueous solution, whereby a calcium-containing filtrate and a residual slag is formed in each extraction step, separating the residual slag from the filtrate after each extraction step, carrying each residual slag to the following extraction in the series of extractions, to be used as raw material in said following extraction, and discarding the residual slag separated from the last extraction, carrying each filtrate to the previous extraction in the series of extractions, to be used as extraction solvent in said previous extraction, and carrying the first filtrate, separated from the first extraction step, to a carbonating step, carbonating calcium as calcium carbonate from the first filtrateType: GrantFiled: December 4, 2019Date of Patent: December 3, 2024Assignee: Aalto University Foundation srInventors: Mika Järvinen, Sanni Eloneva
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Publication number: 20240242425Abstract: F estimating an anomaly in an environment a dimensionally accurate three-dimensional model associated with the environment is obtained from a memory, providing a three-dimensional position of objects in the environment. Thermal sensor data originating from a thermal sensor and image sensor data originating from an image sensor arranged in the environment is obtained. The thermal sensor data and image sensor data includes real-time image data associated with the environment, the thermal sensor and image sensor having known locations in the dimensionally accurate three-dimensional model. Locations of image pixels in the thermal sensor data, the image sensor data and a point of view of a camera associated with the dimensionally accurate three-dimensional model are mapped, and one of a location and size of an anomaly indicated by the thermal sensor data is estimated, the anomaly being associated with an object in the dimensionally accurate three-dimensional model based on the mapping.Type: ApplicationFiled: January 13, 2023Publication date: July 18, 2024Applicant: Aalto University Foundation srInventor: Siavash Haghighat Khajavi
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Patent number: 11799041Abstract: The present invention relates to a double sided solar cell assembly, including at least one carbon-based perovskite solar cell unit, which has been included in a sandwich structure together with a second solar cell unit, which is a dye-sensitized photoelectrode.Type: GrantFiled: December 19, 2019Date of Patent: October 24, 2023Assignee: Aalto University Foundation srInventor: Syed Ghufran Hashmi
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Patent number: 11656309Abstract: According to an example aspect of the present invention, there is provided generating, Low-Field-Magnetic Resonance Imaging, LF-MRI, or Ultra-Low-Field Magnetic Resonance Imaging, ULF-MRI, data with respect to an image frame, determining a sensorwise agreement of the data with determined sensitivity profiles, and determining a mapping between the image frame and a sensor frame, such that the sensorwise agreement has been fulfilled.Type: GrantFiled: March 4, 2020Date of Patent: May 23, 2023Assignee: Aalto University Foundation srInventors: Cornelis Zevenhoven, Antti Mäkinen, Risto Ilmoniemi
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Patent number: 11597750Abstract: The present invention is directed to a method for producing a condensed phase of a silk fusion protein, the method comprising the steps of preparing a solution of a silk fusion protein in an aqueous medium and concentrating the silk fusion protein in the aqueous medium, wherein the fusion protein is isolated from a recombinant production host and comprises a silk-like protein sequence and two separate non-silk terminal module sequences, such as cellulose binding modules, SpyCatcher domains, tenth type III module of Fibronectin, gamma-crystallin D, flanking the silk-like protein sequence; wherein the method is performed so that the silk fusion protein is not precipitated and subsequently dissolved to the aqueous medium. The present invention is also directed to using such fusion proteins as adhesives.Type: GrantFiled: June 13, 2018Date of Patent: March 7, 2023Assignee: Aalto University Foundation srInventors: Markus Linder, Pezhman Mohammadi, Sesilja Aranko
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Publication number: 20230066995Abstract: A coagulation bath system for fiber spinning, the system comprising a coagulation bath con figured to have coagulation liquid consisting of at least partly of water, and forming a water flow, which coagulation liquid is arranged to receive fibers, the water flow drives the movement of fibers through the coagulation bath.Type: ApplicationFiled: February 15, 2021Publication date: March 2, 2023Applicant: Aalto University Foundation srInventors: Sauli LARKIALA, Chamseddine GUIZANI
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Patent number: 11549200Abstract: According to an example aspect of the present invention, there is provided A process for making a cellulose fibre or film comprising the steps of dissolving pulp in an ionic liquid containing a cationic 1,5,7-triazabicyclo[4.4.0]dec-5-enium [TBDH]+ moiety and an anion selected from the group according to Formula a), Formula b) and Formula c), wherein each of R, R2, R3, R4, R5, R7, R8, R9 and R10 is H or an organyl radical and X? is selected from the group consisting of halides, pseudohalides, carboxylates, alkyl sulphite, alkyl sulphate, dialkylphosphite, dialkyl phosphate, dialkyl phosphonites and dialkyl phosphonates, to provide a spinning dope, extruding the spinning dope through a spinneret to form one or more filaments, and a step selected from the group consisting of spinning cellulose fibres from the solution, and extruding a cellulose film from the solution.Type: GrantFiled: January 30, 2018Date of Patent: January 10, 2023Assignees: Aalto University Foundation sr, Helsingin YliopistoInventors: Herbert Sixta, Michael Hummel, Kadvaël Le Boulch, Ilkka Kilpeläinen, Alistair W.T. King, Jussi Helminen, Sanna Hellsten
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Patent number: 11524974Abstract: Method of forming colloidal lignin particles, comprising the step of dissolving lignin in a mixture of organic solvents, feeding of the said solution into water, and forming acolloidal dispersion of lignin. The used solvents are recovered with methods such as distillation and reused in the process. Water is removed from the colloidal dispersion by ultrafiltration and reused in the process. The concentrated colloidal dispersion is dried by spray drying. The invention can be used in applications where the colloidal nature of lignin will afford an advantage over bulk lignin.Type: GrantFiled: October 26, 2018Date of Patent: December 13, 2022Assignee: Aalto University Foundation srInventors: Kalle Lintinen, Rahul Prasad Bangalore Ashok, Timo Leskinen, Yao Xiao, Monika Österberg, Mauri Kostiainen, Pekka Oinas, Lauri Rautkari, Akio Yamamoto, Saara Hautamäki, Niko Meri
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Patent number: 11499902Abstract: A force sensing probe (100) for sensing snap-in and/or pull-off force of a liquid droplet (111) brought into and/or separated from contact with a hydrophobic sample surface (151), respectively, comprises: a sensing tip (101); a sensor element (102) connected to the sensing tip, capable of sensing sub-micronewton forces acting on the sensing tip in a measurement direction; and a droplet holding plate (104) having a first main surface (105) and a hydrophilic second main surface (106) connected via a peripheral edge surface (107), and being attached via the first main surface to the sensing tip (101) perpendicularly relative to the measurement direction for receiving and holding a liquid droplet (111) as attached to the second main surface; the droplet holding plate comprising an electrically conductive surface layer (115), the first and the second main surfaces and the peripheral edge surface being defined by the surface layer.Type: GrantFiled: January 17, 2018Date of Patent: November 15, 2022Assignee: Aalto University Foundation srInventors: Quan Zhou, Robin Ras, Ville Liimatainen, Maja Vuckovac
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Patent number: 11500049Abstract: The invention relates to a device for magnetic measurements and/or magnetic imaging such as an MRI device or a hybrid MEG-MRI device. The device comprises an array of one or more detectors for the magnetic signal and one or more coils for producing preparatory magnetic field pulses. The device further comprises means to drive current pulses through the said coils, wherein at least one of the coils comprises material that is Type-II superconducting at the operating temperature. The device is configured to cancel out at least part of the field generated by the remanent magnetization after a current pulse by the shape of the current pulse and/or the geometrically balanced design of the coil.Type: GrantFiled: August 29, 2019Date of Patent: November 15, 2022Assignee: Aalto University Foundation SRInventors: Cornelis Zevenhoven, Iiro Lehto
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Patent number: 11486047Abstract: The invention relates to a method of recovering Pt or Ag or Pt and Ag from a sulfate solution on an electrode. In particular, the invention concerns a method for recovering Pt or Ag or Pt and Ag from base metal bearing process solution, particularly from a hydrometallurgical sacrificial metal bearing solution containing Zn and/or Ni. In general, the method of the present invention can be used for recovery of precious metals, which are dissolvable in sulfuric acid, from sulfate media based solutions. In addition to Pt and Ag, especially Pd should be mentioned. Deposited precious metal(s) can be recovered from the electrode or the deposition containing electrode can be used as such.Type: GrantFiled: June 20, 2018Date of Patent: November 1, 2022Assignee: Aalto University Foundation srInventors: Mari Lundström, Kirsi Yliniemi, Petteri Halli, Samuli Franssila, Ville Jokinen, Joonas Heikkinen
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Patent number: 11486094Abstract: According to an example aspect of the present invention, there is provided a process for the conversion of cellulosic waste material into a recycled cellulose product comprising the steps of cooking the waste material in a cooking liquor to remove lignin from the waste material and provide a delignified pulp, dissolving the delignified pulp in an ionic liquid to provide a spinning dope suitable for dry jet-wet spinning in an ionic liquid solution, and subjecting the spinning dope to a further processing step to provide a recycled cellulose product, said further step selected from the group of spinning cellulose fibers for use in textiles from the solution, extruding a film product for use in packaging, regenerating the dope as a hydrogel and regenerating the dope as an aerogel.Type: GrantFiled: February 1, 2018Date of Patent: November 1, 2022Assignee: Aalto University Foundation srInventors: Herbert Sixta, Yibo Ma, Michael Hummel
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Patent number: 11203707Abstract: The present invention relates to a cold-crystallizing material having high latent heat, and a method of using the present material for heat storing. The material of the invention comprises of a phase change material and an additive which is preferably a hydrophilic polymer matrix. Preferably, sugar alcohols, such as erythritol or D-mannitol, are used as the phase change material. The polymer of the invention is preferably cross-linked and ionic, i.e. a polyelectrolyte. PCM stores a high amount of heat energy while melting and releases the stored thermal energy by cold-crystallization. Compared to previously studied cold-crystallizing materials, the latent heat of the cold-crystallizing material of the invention is considerably higher, and cold-crystallization is more repeatable in successive melting-crystallization cycles. The material can be used for heat storing. Heat energy can be released from the material by a heat pulse on demand. The method is particularly suitable for long-term heat storing.Type: GrantFiled: November 2, 2017Date of Patent: December 21, 2021Assignee: Aalto University Foundation srInventors: Ari Seppälä, Salla Puupponen
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Patent number: 11168196Abstract: According to an example aspect of the present invention, there is provided a method of separating cellulose and polyester from a material comprising a blend of cellulose and polyester, said method comprising the steps of mixing the material comprising a blend of cellulose and polyester with a first portion of superbase-based ionic liquid to dissolve a first portion of cellulose and form a first cellulose solution and a first residue comprising polyester, removing the first residue comprising polyester from the first cellulose solution, and directing the first cellulose solution to one or more further processing steps.Type: GrantFiled: December 20, 2017Date of Patent: November 9, 2021Assignee: Aalto University Foundation srInventors: Simone Haslinger, Michael Hummel, Herbert Sixta
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Patent number: 11045853Abstract: The present invention relates to a method and tools for manufacturing of seamless tubular shapes, especially tubes and canisters. In the method of the invention the tubular shape is extracted from the flash continuously produced during the plunging of a consumable rod against a rigid anvil. The tools of the invention include a consumable rod; a non-consumable or consumable rigid anvil; first means for rotating the consumable rod and the non-consumable or consumable rigid anvil relatively with respect of each other; second means for plunging the consumable rod and the non-consumable or consumable rigid anvil relatively against each other; open die condition configuration for continuous production of flash during said plunging.Type: GrantFiled: February 20, 2017Date of Patent: June 29, 2021Assignee: Aalto University Foundation srInventor: Pedro Vilaca
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Publication number: 20210181391Abstract: A field-enhancing device includes at least one metal layer or a metal grating consisting of metal stripes or a dielectric grating. Usually the device is constructed on some substrate. The adhesive layer is advantageous when the next layer is metallic but is not needed with dielectric layers. The next layers to be constructed form a mirror structure that can also be omitted for simple field-enhancing device constructs. The mirror structure can be either a metal mirror structure or a distributed Bragg reflector structure (DBR). The next layer is the thin metal layer. This layer can be covered with a 1-D metal grating consisting of metal stripes or with a dielectric grating having similar geometry. The structure can also be fabricated without metals when dielectric grating is used as the field-enhancing part. Finally, a protective layer can be added on top of the structure.Type: ApplicationFiled: November 6, 2018Publication date: June 17, 2021Applicants: Aalto University Foundation sr, Helsingin yliopistoInventors: Nagarajan Subramaniyam, Markku SOPANEN, Elina IKONEN, Antti ISOMÄKI, Simon PFISTERER
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Publication number: 20210123459Abstract: A hydraulic valve includes an on/off seat-type main valve with two ports having a displaceable poppet for opening and closing the main flow channel; an on/off seat-type pilot valve with three ports, with a magnetomotive force producing coil, a magnetic circuit, and an anchor movable with the magnetomotive force produced by the coil; and a frame with required channels and spaces for the poppet and for the anchor. Closing the inlet channel displaces the poppet and opens the main flow channel. Opening the inlet channel forces the poppet to close the main channel. The anchor includes a frame with a first sealing element for closing the low-pressure outlet channel of the pilot valve and with a second sealing element for securing the closing of the high-pressure inlet channel of the pilot valve. The sealing surface of the second sealing element is movable in relation to the frame of the anchor.Type: ApplicationFiled: May 15, 2019Publication date: April 29, 2021Applicant: Aalto University Foundation srInventor: Tapio LANTELA