Patents by Inventor Helge Kristiansen
Helge Kristiansen 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: 10344189Abstract: A conductive adhesive, such as an anisotropic conductive adhesive, comprising a population of conductive particles and a population of signal particles in an adhesive; wherein both the conductive particle population and the signal particle population have an average particle diameter of <200 ?m with a coefficient of variance of <10%; wherein the signal particles are arranged to provide an indication when they are deformed to a pre-determined height; and wherein the conductive particles are arranged such that they will not fail, e.g. crack or fracture, when deformed to a height larger than or equal to the pre-determined height at which the signal particles are arranged to provide the indication.Type: GrantFiled: July 12, 2013Date of Patent: July 9, 2019Assignee: Conpart ASInventors: Keith Redford, Helge Kristiansen
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Patent number: 9758702Abstract: An isotropic conductive adhesive having silver coated polymer beads within an adhesive matrix and a method of forming an isotropic conductive adhesive are disclosed. The mean average diameter of the polymer cores of the beads is less than 30 ?m, and the silver coating comprises interlinked silver deposits grown from dispersed nucleation sites scattered across the surface of the beads.Type: GrantFiled: May 29, 2013Date of Patent: September 12, 2017Assignee: CONPART ASInventors: Helge Kristiansen, Keith Redford, Tore Helland
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Publication number: 20160126202Abstract: A bridging arrangement includes a first and a second surface defining a gap therebetween. At least one surface of the first and second surface has an anisotropic energy landscape. A plurality of particles defines a path between the first and second surface bridging the gap.Type: ApplicationFiled: October 12, 2015Publication date: May 5, 2016Inventors: Thomas J. Brunschwiler, Brian Burg, Richard Dixon, Helge Kristiansen, Piotr Warszynski, Jonas Zuercher
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Patent number: 9214250Abstract: A heat-treated polymer particle comprising an addition polymer core particle which has had swollen and polymerized therein a blend of an aromatic alcohol with an aldehyde or a blend of an aromatic amine or urea with an aldehyde and which has been subsequently heat treated, e.g. to a temperature of at least 150° C.Type: GrantFiled: October 28, 2011Date of Patent: December 15, 2015Assignee: Conpart ASInventors: Keith Redford, Helge Kristiansen, Heidi Johnsen, Ruth Schmid, Justyna Justynska
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Publication number: 20150322298Abstract: A method of applying a conductive adhesive comprising: using a conductive adhesive 18 made up of conductive beads 12 in an adhesive matrix 8, the conductive beads comprising a polymer core and a conductive coating and having a maximum dimension of 100 ?m or less; and depositing droplets of the adhesive 18 on a substrate via a nozzle 20.Type: ApplicationFiled: December 13, 2013Publication date: November 12, 2015Inventors: Helge Kristiansen, Keith Redford, Tore Helland, Jakob Gakkestad, Ottar Opland
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Publication number: 20150175851Abstract: A conductive adhesive, such as an anisotropic conductive adhesive, comprising a population of conductive particles and a population of signal particles in an adhesive; wherein both the conductive particle population and the signal particle population have an average particle diameter of <200 ?m with a coefficient of variance of <10%; wherein the signal particles are arranged to provide an indication when they are deformed to a pre-determined height; and wherein the conductive particles are arranged such that they will not fail, e.g. crack or fracture, when deformed to a height larger than or equal to the pre-determined height at which the signal particles are arranged to provide the indication.Type: ApplicationFiled: July 12, 2013Publication date: June 25, 2015Inventors: Keith Redford, Helge Kristiansen
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Publication number: 20130323501Abstract: An isotropic conductive adhesive having silver coated polymer beads within an adhesive matrix and a method of forming an isotropic conductive adhesive are disclosed. The mean average diameter of the polymer cores of the beads is less than 30 ?m, and the silver coating comprises interlinked silver deposits grown from dispersed nucleation sites scattered across the surface of the beads.Type: ApplicationFiled: May 29, 2013Publication date: December 5, 2013Applicant: Conpart ASInventors: Helge Kristiansen, Keith Redford, Tore Helland
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Publication number: 20130277621Abstract: A heat-treated polymer particle comprising an addition polymer core particle which has had swollen and polymerised therein a blend of an aromatic alcohol with an aldehyde or a blend of an aromatic amine or urea with an aldehyde and which has been subsequently heat treated, e.g. to a temperature of at least 150° C.Type: ApplicationFiled: October 28, 2011Publication date: October 24, 2013Applicant: CONPART ASInventors: Keith Redford, Helge Kristiansen, Heidi Johnsen, Ruth Schmid, Justyna Justynska
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Patent number: 8063540Abstract: A design and a manufacturing method of ultrasound transducers based on films of ferro-electric ceramic material is presented, the transducers being particularly useful for operating at frequencies above 10 MHz. The manufacturing technique can involve tape-casting of the ceramic films, deposition of the ceramic films onto a substrate with thick film printing, sol-gel, or other deposition techniques, where manufacturing methods for load matching layers and composite ceramic layers are described. The designs also involve acoustic load matching layers that provide particularly wide bandwidth of the transducers, and also multi-band operation of the transducers. The basic designs can be used for elements in a transducer array, that provides the frequency characteristics of the single element transducers, for array steering of the focus and possibly also direction of a pulsed ultrasound beam at high frequencies and multi-band frequencies.Type: GrantFiled: March 8, 2005Date of Patent: November 22, 2011Assignee: Emantec ASInventors: Bjørn A. J. Angelsen, Tonni F. Johansen, Helge Kristiansen
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Publication number: 20090039738Abstract: A design and a manufacturing method of ultrasound transducers based on films of ferro-electric ceramic material is presented, the transducers being particularly useful for operating at frequencies above 10 MHz. The manufacturing technique can involve tape-casting of the ceramic films, deposition of the ceramic films onto a substrate with thick film printing, sol-gel, or other deposition techniques, where manufacturing methods for load matching layers and composite ceramic layers are described. The designs also involve acoustic load matching layers that provide particularly wide bandwidth of the transducers, and also multi-band operation of the transducers. The basic designs can be used for elements in a transducer array, that provides the frequency characteristics of the single element transducers, for array steering of the focus and possibly also direction of a pulsed ultrasound beam at high frequencies and multi-band frequencies.Type: ApplicationFiled: June 3, 2008Publication date: February 12, 2009Inventors: Bjorn A. J. Angelsen, Tonni F. Johansen, Helge Kristiansen
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Patent number: 7276028Abstract: The present invention teaches a method, system and units for measuring changes in blood during a longer period of time in vivo with a patient by measuring diffusivity of solvent. A differential pressure sensor is arranged on a silicon wafer or beam comprising resistors being in communication with fluids in two chambers via semipermable membranes enabling measuring of two components in said blood by tracking changes over time.Type: GrantFiled: June 9, 2004Date of Patent: October 2, 2007Assignee: Lifecare ASInventors: Olav Ellingsen, Bård Erik Kulseng, Helge Kristiansen
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Publication number: 20060173252Abstract: The present invention teaches a method, system and units for measuring changes in blood during a longer period of time in vivo with a patient by measuring diffusivity of solvent. A differential pressure sensor is arranged on a silicon wafer or beam comprising resistors being in communication with fluids in two chambers via semipermable membranes enabling measuring of two components in said blood by tracking changes over time.Type: ApplicationFiled: June 9, 2004Publication date: August 3, 2006Applicant: LIFECARE ASInventors: Olav Ellingsen, Bard Kulseng, Helge Kristiansen
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Publication number: 20050194865Abstract: A design and a manufacturing method of ultrasound transducers based on films of ferro-electric ceramic material is presented, the transducers being particularly useful for operating at frequencies above 10 MHz. The manufacturing technique can involve tape-casting of the ceramic films, deposition of the ceramic films onto a substrate with thick film printing, sol-gel, or other deposition techniques, where manufacturing methods for load matching layers and composite ceramic layers are described. The designs also involve acoustic load matching layers that provide particularly wide bandwidth of the transducers, and also multi-band operation of the transducers. The basic designs can be used for elements in a transducer array, that provides the frequency characteristics of the single element transducers, for array steering of the focus and possibly also direction of a pulsed ultrasound beam at high frequencies and multi-band frequencies.Type: ApplicationFiled: March 8, 2005Publication date: September 8, 2005Inventors: Bjorn Angelsen, Tonni Johansen, Helge Kristiansen
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Patent number: 6267748Abstract: The invention relates to a needle bolder, for use in combination with a syringe and a needle, characterized in that the needle holder is provided with an expandable element and with retention means for the expandable element, so that contact of the expandable element with an injection causes expansion of the expandable element and, as a consequence retraction of the needle into the needle holder. The invention relates too to a syringe comprising said needle holder.Type: GrantFiled: August 23, 1999Date of Patent: July 31, 2001Assignee: Syringus ABInventors: Morten Gulliksen, Helge Kristiansen