Patents Assigned to ACREO SWEDISH ICT AB
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Patent number: 10001690Abstract: The invention relates to a colloidal electrolyte composition comprising a polyelectrolyte selected from one or more cationic polymers, a particulate phase forming a colloidal dispersion, and a binder system able to form a cross-linked network upon curing the electrolyte composition. Also, the invention relates to a method of preparation the colloidal electrolyte composition, to an electrochemical cell and to a method of preparation the electrochemical cell.Type: GrantFiled: April 5, 2012Date of Patent: June 19, 2018Assignee: ACREO SWEDISH ICT ABInventors: Mats Sandberg, Anurak Sawatdee, Jessica Ahlin
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Patent number: 9494839Abstract: A process for manufacturing an electrochemically active device comprising the steps of: —providing a substrate (110) comprising an electrode receiving surface portion (111) having substantially constant wetting tension throughout said electrode receiving surface portion, —providing a plurality of first electrodes (120) directly on said electrode receiving surface portion, —leaving intermediate portions (130) of said electrode receiving surface portion (111) free from said electrodes, —providing a layer of electrolyte (140) covering said plurality of first electrodes (120) and said intermediate portions (130), and—wherein wetting tension of the surfaces of the intermediate portions (130) is arranged to act more repelling on the electrolyte compared to the wetting tension of the surfaces of the plurality of first electrodes (120), whereby, the electrolyte is concentrated to the surfaces of the plurality of first electrodes (120), and the surfaces of the intermediate portions (130) are substantially free of elecType: GrantFiled: April 4, 2012Date of Patent: November 15, 2016Assignees: ACREO SWEDISH ICT AB, LINTEC CORPORATIONInventors: Peter Andersson Ersman, Jun Kawahara, Kazuya Katoh, David Nilsson
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Patent number: 9366585Abstract: A device for measuring force components formed from a single crystal material, wherein the device comprises at least one cantilever beam inclined to a wafer plane normal and formed in one piece with a mass body, which mass body provides a mass of inertia. The mass body has a first and a second major surface which are substantially parallel with a wafer plane. A mass body cross section presents a portion which is substantially symmetrical along a centrally (in the thickness direction) located plane parallel with the wafer plane. Disclosed is also a method for its production and an accelerometer comprising at least one such device. The device allow for a more compact 3-axis accelerometer.Type: GrantFiled: September 24, 2013Date of Patent: June 14, 2016Assignee: ACREO SWEDISH ICT ABInventors: Gert Andersson, Milena Anguelova, Nils Hedenstierna, Alexandra Nafari, David Westberg
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Patent number: 9318596Abstract: A ferroelectric field-effect transistor device includes: a semiconductor layer; a ferroelectric layer; and an ion conductor layer arranged between the semiconductor layer and the ferroelectric layer and in contact with the semiconductor layer. Methods for producing the ferroelectric field-effect transistor device and using the ferroelectric field-effect transistor device in non-volatile memory devices that reduce a readout voltage to a voltage as low as 0.2 V are also disclosed.Type: GrantFiled: March 12, 2014Date of Patent: April 19, 2016Assignee: ACREO SWEDISH ICT ABInventors: Simone Fabiano, Xavier Crispin, Magnus Berggren
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Patent number: 9224343Abstract: There is provided a display device, which is arranged to display a predetermined fixed image, having a pixel electrode layer comprising a plurality of pixel portions, and opaque solidified electrolyte arranged in a plurality of separated segments in ionic contact with a respective pixel portion, wherein each electrolyte segment and respective pixel portion form a pixel element. The fixed image display further comprises at least one continuous electrode layer extending across at least two rows and two columns of the pixel matrix, and is connected to the electrolyte segments of a subset of the pixel elements. Upon application of an electric potential difference between the patterned electrode layer and the pixel electrode layer, the pixel portions of the subset of the pixel elements switch color.Type: GrantFiled: December 17, 2012Date of Patent: December 29, 2015Assignees: ACREO SWEDISH ICT AB, LINTEC CORPORATIONInventors: Peter Andersson Ersman, Göran Gustafsson, David Nilsson, Jun Kawahara, Kazuya Katoh
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Patent number: 9213210Abstract: A directly addressable display device comprising at least one pixel cell (1-9), each pixel cell (1-9) being arranged for displaying a symbol, which symbol is repeatedly switchable between an on-state and an off-state, wherein each pixel cell (1-9) comprises an electrochromic layer (110) comprising an electrochromic and electrochemically active organic polymer material being electrochemically switchable between two different visually detectable coloring states; a counter electrode layer (140) comprising an electronically conductive material, wherein said counter electrode layer (140) in the viewing direction of the display device is arranged behind said electrochromic layer (110); an electrolyte layer (130), which electrolyte layer (130) is solid and arranged spatially between, and in ionic contact with, said electrochromic layer (110) and said counter electrode layer (140); a symbol defining layer (120) which is electronically and ionically insulating, arranged in direct ionic contact with said electrochromicType: GrantFiled: October 5, 2012Date of Patent: December 15, 2015Assignee: Acreo Swedish ICT ABInventors: Peter Andersson Ersman, Mats Sandberg
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Publication number: 20150287818Abstract: A semiconductor structure comprising a substrate, a drift layer, at least a doping region, an epitaxial channel, a gate oxide layer, a gate metal and an isolation layer is provided. The drift layer is disposed on the substrate. The doping region comprises a p-well region, an n+ region and a p+ region, wherein the n+ region and a portion of p+ region are disposed in the p-well region which is adjacent to the n+ region. The epitaxial channel is disposed over the drift layer and covers at least a portion of the n+ region. The epitaxial channel is composed of at least two epitaxial layers whose conduction types or doping concentrations are not identical. The gate oxide layer is disposed on the epitaxial channel. The gate metal is disposed on the gate oxide layer. The isolation layer is disposed on the gate metal and the gate oxide layer.Type: ApplicationFiled: September 30, 2014Publication date: October 8, 2015Applicants: ACREO SWEDISH ICT AB, INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Cheng-Tyng YEN, Mietek BAKOWSKI, Chien-Chung HUNG, Sergey RESHANOV, Adolf SCHONER, Chwan-Ying LEE
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Publication number: 20140307302Abstract: A directly addressable display device comprising at least one pixel cell (1-9), each pixel cell (1-9) being arranged for displaying a symbol, which symbol is repeatedly switchable between an on-state and an off-state, wherein each pixel cell (1-9) comprises an electrochromic layer (110) comprising an electrochromic and electrochemically active organic polymer material being electrochemically switchable between two different visually detectable coloring states; a counter electrode layer (140) comprising an electronically conductive material, wherein said counter electrode layer (140) in the viewing direction of the display device is arranged behind said electrochromic layer (110); an electrolyte layer (130), which electrolyte layer (130) is solid and arranged spatially between, and in ionic contact with, said electrochromic layer (110) and said counter electrode layer (140); a symbol defining layer (120) which is electronically and ionically insulating, arranged in direct ionic contact with said electrochromicType: ApplicationFiled: October 5, 2012Publication date: October 16, 2014Applicant: ACREO SWEDISH ICT ABInventors: Peter Andersson Ersman, Mats Sandberg
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Publication number: 20140264515Abstract: A ferroelectric field-effect transistor device includes: a semiconductor layer; a ferroelectric layer; and an ion conductor layer arranged between the semiconductor layer and the ferroelectric layer and in contact with the semiconductor layer. Methods for producing the ferroelectric field-effect transistor device and using the ferroelectric field-effect transistor device in non-volatile memory devices are also disclosed.Type: ApplicationFiled: March 12, 2014Publication date: September 18, 2014Applicant: ACREO SWEDISH ICT ABInventors: Simone FABIANO, Xavier CRISPIN, Magnus BERGGREN
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Patent number: 8810888Abstract: An embodiment of the present invention relates to electrochemical devices including an electrochemically active layer having the ability of electrochemically altering its redox state. By providing a portion of an electrode of corrosion resistant material between an electrolyte and an electrochemically active layer, undesired discoloration due to the electrochemical reaction of an electrochemical device is reduced.Type: GrantFiled: October 5, 2010Date of Patent: August 19, 2014Assignee: Acreo Swedish ICT ABInventors: Peter Andersson Ersman, David Nilsson, Magnus Berggren, Per-Olof Svensson, Nathaniel D. Robinson
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Publication number: 20140160549Abstract: The invention relates to a colloidal electrolyte composition comprising a polyelectrolyte selected from one or more cationic polymers, a particulate phase forming a colloidal dispersion, and a binder system able to form a cross-linked network upon curing the electrolyte composition. Also, the invention relates to a method of preparation the colloidal electrolyte composition, to an electrochemical cell and to a method of preparation the electrochemical cell.Type: ApplicationFiled: April 5, 2012Publication date: June 12, 2014Applicant: ACREO SWEDISH ICT ABInventors: Mats Sandberg, Anurak Sawatdee, Jessica Åhlin
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Publication number: 20140133006Abstract: A fixed image display device is disclosed, having an opaque insulating layer, a continuous electrolyte layer behind said insulating layer, a pixilated electrochemically active and electrochromic layer between the electrolyte layer and the insulating layer, and a pixilated electronically conductive counter electrode layer between the electrolyte layer and the insulating layer. The electrochromic layer and the counter electrode layer have a lateral arrangement, and are in ionic contact with each other. Moreover, the insulating layer includes passages having an electronic conductor. At least one continuous motif electrode segment arranged behind the insulating layer, and electronically connected to at least two pixel elements of the electrochromic layer via the electronic conductors; and at least one continuous background electrode segment arranged behind the insulating layer, and electronically connected to at least two pixel elements of the counter electrode layer via electronic conductors.Type: ApplicationFiled: November 1, 2013Publication date: May 15, 2014Applicant: ACREO SWEDISH ICT ABInventor: Anna MALMSTRÖM
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Publication number: 20140083210Abstract: A device for measuring force components formed from a single crystal material, wherein the device comprises at least one cantilever beam inclined to a wafer plane normal and formed in one piece with a mass body, which mass body provides a mass of inertia. The mass body has a first and a second major surface which are substantially parallel with a wafer plane. A mass body cross section presents a portion which is substantially symmetrical along a centrally (in the thickness direction) located plane parallel with the wafer plane. Disclosed is also a method for its production and an accelerometer comprising at least one such device. The device allow for a more compact 3-axis accelerometer.Type: ApplicationFiled: September 24, 2013Publication date: March 27, 2014Applicant: ACREO SWEDISH ICT ABInventors: Gert ANDERSSON, Milena ANGUELOVA, Nils HEDENSTIERNA, Alexandra NAFARI, David WESTBERG
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Publication number: 20140041213Abstract: A process for manufacturing an electrochemically active device comprising the steps of: —providing a substrate (110) comprising an electrode receiving surface portion (111) having substantially constant wetting tension throughout said electrode receiving surface portion, —providing a plurality of first electrodes (120) directly on said electrode receiving surface portion, —leaving intermediate portions (130) of said electrode receiving surface portion (111) free from said electrodes, —providing a layer of electrolyte (140) covering said plurality of first electrodes (120) and said intermediate portions (130), and —wherein wetting tension of the surfaces of the intermediate portions (130) is arranged to act more repelling on the electrolyte compared to the wetting tension of the surfaces of the plurality of first electrodes (120), whereby, the electrolyte is concentrated to the surfaces of the plurality of first electrodes (120), and the surfaces of the intermediate portions (130) are substantially free of eleType: ApplicationFiled: April 4, 2012Publication date: February 13, 2014Applicants: ACREO SWEDISH ICT AB, LINTEC CORPORATIONInventors: Peter Andersson Ersman, Jun Kawahara, Kazuya Katoh, David Nilsson
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Patent number: 8624584Abstract: A device for detecting a magnetic field response or changes in a magnetic response of at least one magnetic particle in a carrier fluid, the detection comprising measuring the magnetic particles characteristic rotation period, and the measurement involving measurement of a Brownian relaxation in the carrier fluid under influence of an external pulsed magnetic field. The device includes means for generating the pulsed magnetic field, at least two substantially identical detection coils connected in gradiometer coupling to detection electronics for measuring the differential induced voltage which is dependent on the frequency dependent susceptibility or the magnetization change.Type: GrantFiled: October 20, 2008Date of Patent: January 7, 2014Assignee: Acreo Swedish ICT ABInventors: Anatol Krozer, Christer Johansson, Jakob Blomgren, Karolina Petersson, Dag Ilver, Andrea Prieto Astalan, Christian Jonasson
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Publication number: 20130293031Abstract: High frequency currents may be rectified by means of a printable diode comprising a first and a second electrode, between which a semiconducting layer comprising semiconducting particles embedded in an inert matrix, and a conducting layer comprising conducting particles embedded in an inert matrix are arranged.Type: ApplicationFiled: November 22, 2011Publication date: November 7, 2013Applicants: Acreo Swedish ICT AB, De La Rue International LimitedInventors: Magnus Berggren, Xin Wang, Mats Robertsson, Petronella Norberg, Philip George Cooper, Peter Andersson Ersman
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Publication number: 20130276850Abstract: The present invention provides thermoelectric device comprising a first electrode, a second electrode, a first electrolyte composition capable of transporting cations, a second electrolyte composition capable of transporting anions and a connector comprising mobile cations and mobile anions, wherein the first electrolyte composition is connected to said first electrode by being in ionic contact and the second electrolyte composition is connected to said second electrode by being in ionic contact and said connector is in ionic contact with said first and said second electrolyte composition, such that an applied temperature difference over said electrolyte compositions or an applied voltage over said electrodes facilitate transport of ions to and/or from said electrodes via said electrolyte compositions. There is also provided a method for generating electric current and a method for generating a temperature difference.Type: ApplicationFiled: April 19, 2013Publication date: October 24, 2013Applicant: ACREO SWEDISH ICT ABInventors: Xavier CRISPIN, Magnus BERGGREN, Hui WANG
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Publication number: 20130276851Abstract: The present invention provides a thermoelectric device comprising a first electrode, a second electrode, and conducting composition capable of conducting ions, wherein the first and second electrodes are ionically coupled via said conducting composition such that an applied temperature difference over said conducting composition or an applied voltage over said electrodes facilitate transport of ions to and/or from said electrodes via said conducting composition, and wherein said conducting composition capable of conducting ions comprises a polymeric electrolyte. There is also provided a method for generating electric current and a method for generating a temperature difference.Type: ApplicationFiled: April 19, 2013Publication date: October 24, 2013Applicant: ACREO SWEDISH ICT ABInventors: Xavier CRISPIN, Magnus BERGGREN, Hui WANG
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Publication number: 20130270533Abstract: The invention relates to a organic field effect transistor device comprising: an organic semiconductor layer; a source electrode arranged in electronic contact with the said organic semiconductor; a drain electrode arranged in electronic contact with the said organic semiconductor; a gate electrode; an electrolyte layer arranged between said gate electrode and said organic semiconductor layer; wherein the organic semiconductor layer comprises a semiconducting polymeric material comprising one or more blocks of conjugated polymer combined with one or more blocks of copolymer; preferably an amphiphilic copolymer. Also a method of producing the device, and a polyanionic polymer is provided by the invention.Type: ApplicationFiled: April 11, 2013Publication date: October 17, 2013Applicant: ACREO SWEDISH ICT ABInventors: Xavier CRISPIN, Magnus BERGGREN, Hiam SINNO, Ari LAIHO, Olivier COULEMBIER, Philippe DUBOIS, Ha Tran NGUYEN
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Publication number: 20130189159Abstract: The present invention relates to a method, comprising: coating a surface with a mussel adhesive protein such that a first layer comprising the MAP is achieved on the first surface, and providing a second layer comprising a first plurality of particles on at least a portion of said first layer comprising said MAP. It also relates to a device comprising a substrate having a first surface; a first layer comprising said MAP, said first layer being arranged on said first surface, and a second layer comprising a first plurality of particles attached to at least a portion of said MAP of said first layer. The present invention is based on the realization that a MAP can advantageously be used to immobilize particles on a substrate, for example in a layer-by-layer assembly. Thereby, providing a highly functionalized surface.Type: ApplicationFiled: January 21, 2013Publication date: July 25, 2013Applicant: ACREO SWEDISH ICT ABInventor: Acreo Swedish ICT AB