Patents by Inventor David Nilsson
David Nilsson 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: 20100049655Abstract: A method for securely executing a charge transaction establishes an encrypted communication link between the mobile telecommunication device and a host by utilizing executable program code in the mobile telecommunication device. The method transmits data related to a charge transaction request from the host to the mobile telecommunication device via the encrypted communication link, and further transmits a second of at least two in combination unique data sets from the mobile telecommunication device to the host via the encrypted communication link as authorization for the charge transaction to be executed, and even further transmits from the host to a payment service provider, data related to the charge transaction request, the received second data set and a, in combination with the received second data set unique first data set stored at the host. The method completes the charge transaction if the first and second data sets in combination authorize the charge transaction.Type: ApplicationFiled: January 16, 2008Publication date: February 25, 2010Applicant: SMARTREFILL I HELSINGBORG ABInventors: David Nilsson, Michael Jorgensen
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Publication number: 20090303041Abstract: A device for integrating and indicating a parameter over, comprising: a first electrode (2), a second electrode (3), an electrolyte (5), which is in contact with the first electrode and in consuming contact with a consumption portion (6) of the second electrode, at least two indicators (I1, I2, I3), which are connected to the consumption portion (6) at a respective connecting point (P1, P2, P3). The electrolyte (5) and the consumption portion (6) are selected such that when a voltage is applied over the electrodes (2, 3), the consumption portion (6) is consumed at a predetermined rate, wherein the indicators (I1, I2, I3) are arranged to switch states in response to a consumption frontier (F1, F2) of the consumption portion reaching or passing a connecting point (P1, P2, P3) associated with the respective indicator (I1, I2, I3), wherein at least one of the indicators is a binary (on/off) indicator.Type: ApplicationFiled: May 5, 2009Publication date: December 10, 2009Inventors: Payman Tehrani, Mats Robertsson, David Nilsson, Oscar Larsson, Nathaniel D. Robinson, Rune Groppfeldt
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Patent number: 7626893Abstract: The present invention provides an electrochemical timer device (110) having a source (101) and a drain (102) contact. The device further comprises a switch channel (104) and a delay reservoir (103) that are electrochemically interconnected with a gate electrode (105). The switch channel (104) interconnects the source (101) and drain (102) contacts and is arranged to change electrical conductivity upon electrochemistry therein, and an electrochemical reaction is arranged to occur in the gate electrode (105) and delay reservoir (103) upon application of a drive voltage there between. The delay reservoir (103) is arranged such that the electrochemical reaction occurring therein gradually moves towards the switch channel (104) and eventually reaches the switch channel (104) after a delay time thereby changing the electrical conductivity of the switch channel (104).Type: GrantFiled: May 2, 2006Date of Patent: December 1, 2009Assignee: ACREO ABInventors: Nathaniel Robinson, David Nilsson, Magnus Berggren
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Patent number: 7582895Abstract: Methods of producing electrochemical transistor devices are provided, wherein a solidified electrolyte is arranged in direct contact with at least a portion of an organic material having the ability to electrochemically altering its electrical conductivity through change of redox state thereof, such that a current between a source contact and a drain contact of the transistor is controllable by a voltage applied to a gate electrode. A electrochemical transistor device is also provided, wherein an ion isolative material is provided between a solidified electrolyte and an organic material having the ability to electrochemically altering its redox state, such that a transistor channel of said transistor is defined thereby.Type: GrantFiled: January 9, 2006Date of Patent: September 1, 2009Assignee: Acreo ABInventors: Marten Armgarth, Miaioxiang M. Chen, David A. Nilsson, Rolf M. Berggren, Thomas Kugler, Tommi M. Remonen, Robert Forchheimer
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Publication number: 20090127104Abstract: An electrochemical structure is disclosed, including a first electrochemically active element and an electrolyte, arranged near or in contact with the first electrochemically active element. In at least one embodiment, the electrolyte is deformable and/or movable between a first state, wherein the structure provides a first electric characteristic, and a second state, wherein the structure provides a second, different electric characteristic.Type: ApplicationFiled: August 15, 2008Publication date: May 21, 2009Inventors: Tommi Remonen, David Nilsson, Petronella Norberg
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Patent number: 7489431Abstract: An electrochromic device is disclosed, including two electrochromic elements, which are switched in a time separated manner. Each electrochromic element is arranged of electrochemically active material, and connected to a counter layer by a solidified electrolyte. In at least one embodiment, the electrochromic device further includes at least one resistive device which restricts the electrochemical reaction of one of the electrochromic element, such that a color of this electrochromic element is not substantially altered until the other electrochromic element is reacted to a predetermined extent.Type: GrantFiled: November 8, 2007Date of Patent: February 10, 2009Assignee: Acreo ABInventors: Anna Malmström, David A. Nilsson
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Publication number: 20080135883Abstract: A circuitry for differential amplifying, logical inversion, NAND and/or NOR operations is provided, which includes at least one depletion mode transistor having JFET characteristics. A method for determining the properties of an electrochemical circuitry is provided, including at least one semi-finished transistor, by applying a solidified electrolyte to selected sets of electrochemically active transistor elements is also provided.Type: ApplicationFiled: October 31, 2007Publication date: June 12, 2008Applicant: Acreo ABInventors: Marten Armgarth, Miaioxiang M. Chen, David A. Nilsson, Rolf M. Berggren, Thomas Kugler, Tommi M. Remonen, Robert Forchheimer
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Publication number: 20080128687Abstract: Methods of producing electrochemical transistor devices are provided, wherein a solidified electrolyte is arranged in direct contact with at least a portion of an organic material having the ability to electrochemically altering its electrical conductivity through change of redox state thereof, such that a current between a source contact and a drain contact of the transistor is controllable by way of a voltage applied to a gate electrode. A electrochemical transistor device is also provided, wherein an ion isolative material is provided between a solidified electrolyte and an organic material having ability to electrochemically altering its redox state, such that a transistor channel of the transistor is defined thereby.Type: ApplicationFiled: October 31, 2007Publication date: June 5, 2008Applicant: Acreo ABInventors: Marten Armgarth, Miaioxiang M. Chen, David A. Nilsson, Rolf M. Berggren, Thomas Kugler, Tommi M. Remonen, Robert Forchheimer
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Publication number: 20080130086Abstract: An electrochromic device is disclosed, including two electrochromic elements, which are switched in a time separated manner. Each electrochromic element is arranged of electrochemically active material, and connected to a counter layer by a solidified electrolyte. In at least one embodiment, the electrochromic device further includes at least one resistive device which restricts the electrochemical reaction of one of the electrochromic element, such that a color of this electrochromic element is not substantially altered until the other electrochromic element is reacted to a predetermined extent.Type: ApplicationFiled: November 8, 2007Publication date: June 5, 2008Inventors: Anna Malmstrom, David A. Nilsson
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Publication number: 20080023339Abstract: A device is disclosed for electrically controlled transport of ions between a source and a target electrolyte, including a source electrode and a target electrode. The electrodes are each capable of conducting ions, and the source electrode is arranged to receive ions from the source electrolyte and the target electrode is arranged to release ions to the target electrolyte. The device further includes an ion-conductive channel, arranged to receive ions from the source electrode and to release ions to the target electrode. Moreover, the ion-conductive channel is arranged to provide an ionic connection between the source and the target electrodes. The electrodes and the ion-conductive channel are formed of solid or semi-solid materials which are directly or indirectly attached to a support.Type: ApplicationFiled: June 4, 2007Publication date: January 31, 2008Inventors: Magnus Berggren, Peter Kjall, David Nilsson, Nathaniel Robinson, Agneta Dahlfors, Joakim Isaksson
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Publication number: 20080013595Abstract: A device for determining a parameter history indication of at least one external parameter, comprises an electrode, termed “first electrode” (2, 2a, 2b, 2c), and another electrode, termed “third electrode” (4, 4a, 4b, 4c). The electrodes (2, 2a, 2b, 2c; 4, 4a, 4b, 4c) are in consuming contact with a respective electrolyte (5, 6, 6a, 6b, 6c). A consumption process of the third electrode is controllable by an amount of consumption of said first electrode. The electrolytes are so arranged that consumption rates of the first and third electrodes (2, 2a, 2b, 2c; 4, 4a, 4b, 4c) present different dependencies on the at least one external parameter. A kit of parts including such a device, and a method for determining a parameter history indication of at least one external parameter are also disclosed.Type: ApplicationFiled: May 30, 2007Publication date: January 17, 2008Inventors: Payman Tehrani, Nathaniel Robinson, David Nilsson, Magnus Berggren, Petronella Norberg
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Publication number: 20060261676Abstract: The present invention provides an electrochemical timer device (110) having a source (101) and a drain (102) contact. The device further comprises a switch channel (104) and a delay reservoir (103) that are electrochemically interconnected with a gate electrode (105). The switch channel (104) interconnects the source (101) and drain (102) contacts and is arranged to change electrical conductivity upon electrochemistry therein, and an electrochemical reaction is arranged to occur in the gate electrode (105) and delay reservoir (103) upon application of a drive voltage there between. The delay reservoir (103) is arranged such that the electrochemical reaction occurring therein gradually moves towards the switch channel (104) and eventually reaches the switch channel (104) after a delay time thereby changing the electrical conductivity of the switch channel (104).Type: ApplicationFiled: May 2, 2006Publication date: November 23, 2006Inventors: Nathaniel Robinson, David Nilsson, Magnus Berggren
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Publication number: 20060202289Abstract: An electrochemical transistor device is provided, which comprises a flexible substrate; a layer of organic material, which comprises a source portion, a drain portion and a transistor channel portion; a gate electrode arranged on said substrate separated from said layer of organic material; and a layer of solidified electrolyte arranged in overlapping electric contact with said gate electrode and only with the transistor channel portion of said layer of organic material, thereby defining said transistor channel portion, such that current between said source portion and drain portion is controllable by means of a potential applied to said gate electrode.Type: ApplicationFiled: January 9, 2006Publication date: September 14, 2006Applicant: ACREO ABInventors: Marten Armgarth, Miaioxiang Chen, David Nilsson, Rolf Berggren, Thomas Kugler, Tommi Remonen, Robert Forchheimer
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Publication number: 20060087324Abstract: The present invention provides a sensor device for measuring an electric field in a charge carrying medium. To this end, the sensor device defines a sensor space that is arranged to receive the charge carrying medium, and that comprises terminals for applying an electric field across the sensor space. Furthermore, sensor elements are arranged spatially separated in the sensor space. The sensor elements are operable to perform electrochemistry in response to the electric field and to change optical appearance upon said electrochemistry. Thereby electric field present in said sensor space is detectable from an optical appearance of said sensor elements.Type: ApplicationFiled: October 1, 2004Publication date: April 27, 2006Applicant: ACREO ABInventors: Magnus Berggren, Nathaniel Robinson, Elias Said, David Nilsson, Per-Olof Svensson, Jessica Hall
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Patent number: 7012306Abstract: An electrochemical transistor device is provided, comprising a source contact, a drain contact, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and said at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to said gate electrode(s).Type: GrantFiled: April 7, 2004Date of Patent: March 14, 2006Assignee: Acreo ABInventors: Mårten Armgarth, Miaioxiang Chen, David A. Nilsson, Rolf M. Berggren, Thomas Kugler, Tommi M. Remonen, Robert Forchheimer
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Publication number: 20040211989Abstract: An electrochemical transistor device is provided, comprising a source contact, a drain contact, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and said at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to said gate electrode(s).Type: ApplicationFiled: April 7, 2004Publication date: October 28, 2004Inventors: Marten Armgarth, Miaioxiang M. Chen, David A. Nilsson, Rolf M. Berggren, Thomas Kugler, Tommi M. Remonen, Robert Forchheimer
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Patent number: 6806511Abstract: An electrochemical transistor device is provided, comprising a source contact, a drain contact, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and said at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to said gate electrode(s).Type: GrantFiled: March 7, 2002Date of Patent: October 19, 2004Assignee: Acreo ABInventors: Mårten Armgarth, Miaoxiang Chen, David A. Nilsson, Rolf M. Berggren, Thomas Kugler, Tommi Remonen
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Patent number: 6642069Abstract: A pixel device comprising an electrochemical transistor device with a source and a drain contact; a gate electrode; an electrochemically active element in direct electrical contact with source and drain contacts, and comprising a transistor channel comprising an organic material; and a solidified electrolyte in direct electrical contact with the active element, and an electrochromic device comprising an electrochromic element comprising a material conducting in at least one oxidation state and an electrochromic material; a solidified electrolyte layer in direct electrical contact with the electrochromic element; and two electrodes for application of a voltage and in direct electrical contact with a component selected from the electrolyte layer(s); in which one of the source and drain contacts of the electrochemical transistor device is in electrical contact with one of the electrodes of the electrochromic device.Type: GrantFiled: March 7, 2002Date of Patent: November 4, 2003Assignee: Acreo ABInventors: Mårten Armgarth, Karl P. Andersson, David A. Nilsson, Rolf M. Berggren, Thomas Kugler, Tommi Remonen
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Publication number: 20020158295Abstract: An electrochemical transistor device is provided, comprising a source contact, a drain contact, at least one gate electrode, an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof, and a solidified electrolyte in direct electrical contact with the electrochemically active element and said at least one gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented. In the device, flow of electrons between source contact and drain contact is controllable by means of a voltage applied to said gate electrode(s).Type: ApplicationFiled: March 7, 2002Publication date: October 31, 2002Inventors: Marten Armgarth, Miaoxiang Chen, David A. Nilsson, Rolf M. Berggren, Thomas Kugler, Tommi Remonen
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Publication number: 20020134980Abstract: A pixel device is provided, which comprises; (A) an electrochemical transistor device with a source and a drain contact; a gate electrode; an electrochemically active element arranged between, and in direct electrical contact with, the source and drain contacts, which electrochemically active element comprises a transistor channel and is of a material comprising an organic material having the ability of electrochemically altering its conductivity through change of redox state thereof; and a solidified electrolyte in direct electrical contact with the electrochemically active element and the gate electrode and interposed between them in such a way that electron flow between the electrochemically active element and said gate electrode(s) is prevented; whereby flow of electrons between source contact and drain contact is controllable by means of a voltage applied to said gate electrode(s), and (B) an electrochromic device comprising: an electrochromic element comprising (i) a material that is electrically conducType: ApplicationFiled: March 7, 2002Publication date: September 26, 2002Inventors: Marten Armgarth, Karl P. Andersson, David A. Nilsson, Rolf M. Berggren, Thomas Kugler, Tommi Remonen