Patents Assigned to VTT
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Publication number: 20140053663Abstract: The invention relates to a sampling apparatus and method. In the sampling method, a sample is led through a flowline (20) to a pump (5) and from there on to sampling means (12, 13). According to the invention, the pump (5) is formed of an actual pump (5) and magnetic valves (4, 6) located on either side of it, which are controlled in such a way that the pumping is pulse-like.Type: ApplicationFiled: April 5, 2012Publication date: February 27, 2014Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Johannes Roine, Leif Kåll, Olli Antson
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Publication number: 20140048060Abstract: A solution of a polysaccharide material, a method of producing such solutions and uses thereof. The solution is formed by the polysaccharide in a solvent which comprises an efficient amount of an active compound selected from the group of diketo compounds, such as glyoxylic acid and salts and derivatives thereof, capable of reacting with the polysaccharide. The solution thus produced can be used as a viscous dope, and for the production of fibers, films and surface coatings and for gluing.Type: ApplicationFiled: April 13, 2012Publication date: February 20, 2014Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventor: Jaakko Hiltunen
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Patent number: 8654347Abstract: The invention relates to controllable Fabry-Perot interferometers which are produced with micromechanical (MEMS) technology. The prior art interferometers have a temperature drift which causes inaccuracy and requirement for complicated packaging. According to the invention the interferometer arrangement has both an electrically tuneable interferometer and a reference interferometer on the same substrate. The temperature drift is measured with the reference interferometer and this information is used for compensating the measurement with the tuneable interferometer. The measurement accuracy and stability can thus be improved and requirements for packaging are lighter.Type: GrantFiled: June 6, 2013Date of Patent: February 18, 2014Assignee: Teknologian Tutkimuskeskus VTTInventors: Jarkko Antila, Martti Blomberg
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Publication number: 20140045238Abstract: The present invention relates to a method for producing terpenes in fungi, wherein a terpene biosynthetic gene cluster having terpene biosynthetic genes and regulatory regions operably linked to said genes is activated. The invention relates also to a terpene biosynthetic gene cluster and regulatory regions of such terpene biosynthetic gene cluster usable is production of terpenes, use of regulator for regulating the terpene production and use of Aspergillus nidulans FGSC A4 for producing terpenes. The method of invention provides higher yields of enriched terpene product without essential amount of side-products.Type: ApplicationFiled: November 14, 2011Publication date: February 13, 2014Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Kirsi Bromann, Tiina Nakari-Setala, Laura Ruohonen, Mervi Toivari, Merja Penttila
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Publication number: 20140044744Abstract: The present invention provides mutant polypeptides useful as hypoallergens. More specifically the present invention provides mutant Bet v 1 proteins and the use of such polypeptides as hypoallergens for desensitizing against birch pollen allergies. Furthermore, the invention provides vaccine formulations comprising such polypeptides; the use of such formulations; and to methods of vaccination against birch pollen allergy.Type: ApplicationFiled: April 18, 2012Publication date: February 13, 2014Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Kristiina Takkinen, Marja-Leena Laukkanen, Hans Söderlund, Sirpa Jylhä, Heidi Holkeri, Merja Niemi, Juha Rouvinen
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Publication number: 20140037663Abstract: The present invention provides mutant polypeptides useful as hypoallergens. More specifically the present invention provides mutant Bet v 1 proteins and the use of such polypeptides as hypoallergens for desensitizing against birch pollen allergies. Furthermore, the invention provides vaccine formulations comprising such polypeptides; the use of such formulations; and to methods of vaccination against birch pollen allergy.Type: ApplicationFiled: April 18, 2012Publication date: February 6, 2014Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Kristiina Takkinen, Marja-Leena Laukkanen, Hans Söderlund, Sirpa Jylhä, Heidi Holkeri, Merja Niemi, Janne Jänis, Juha Rouvinen
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Patent number: 8623504Abstract: Particles of a polysaccharide derivative, having at least one substituent with conjugated unsaturated bonds and exhibiting an index of refraction in excess of 1.50 and a method for the production thereof. In the method, the raw-material is suspended in an organic solvent to form a suspension, which is contacted with an organic reactant comprising a residue with conjugated unsaturated bonds; the raw-material and the organic reactant are reacted to form a derivative exhibiting ester or ether bond between the raw-material and the residue with conjugated unsaturated bonds; the polysaccharide derivative is dissolved in a solvent to form a solution; and the solution is contacted with a non-solvent to precipitate particles of the polysaccharide derivative. The invention provides lightweight, optically improved organic pigments and fillers based on renewable resources and which are recyclable by combustion or composting.Type: GrantFiled: December 30, 2009Date of Patent: January 7, 2014Assignee: Teknologian Tutkimuskeskus VTTInventors: Hannu Mikkonen, Kaisa Putkisto, Soili Peltonen, Sari Hyvärinen, Kimmo Koivunen
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Patent number: 8617710Abstract: The present invention relates to a process for forming cobalt nanoparticles and coating them with copper or copper oxide, in which process a copper salt is mixed to a cobalt salt so that the formed salt mixture obtains a cobalt:copper ratio of >1:1, and a reduction is carried out with a reducing gas, whereby nanoparticles are formed while a coating is formed onto their surface.Type: GrantFiled: February 7, 2011Date of Patent: December 31, 2013Assignee: Teknologian Tutkimuskeskus VTTInventors: Ari Auvinen, Jorma Jokiniemi, Pipsa Mattila, Unto Tapper
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Publication number: 20130342684Abstract: The invention concerns a method and system for determining particle size information of particles contained in a sample, the method comprising illuminating the particles with at least three light sources placed on different locations, detecting light reflected from the particles using a detector capable of spatial resolution, and processing the output of the detector so as to determine the particle size information. According to the invention, the particles are illuminated simultaneously with the at least three light sources each operating at a different wavelength channel, and the wavelength channels are simultaneously detected at the detector. The invention reduces the need for sample preparation, among other benefits.Type: ApplicationFiled: January 13, 2012Publication date: December 26, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Heimo Keranen, Matti-Antero Okkonen
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Publication number: 20130336095Abstract: The invention relates to a sensor and a system for measuring pressure, variation in sound pressure, a magnetic field, acceleration, vibration, or the composition of a gas. The sensor comprises an ultrasound transmitter, a cavity, and a passive sensor element. In accordance with the invention the sensor includes antenna means for receiving radio frequency signals (f1, f2), and connecting means connecting the antenna to the ultrasound transmitter for using the radio frequency signals for providing energy for driving the ultrasound transmitter.Type: ApplicationFiled: December 7, 2011Publication date: December 19, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Heikki Seppa, Teuvo Sillanpaa, Ville Viikari
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Publication number: 20130331536Abstract: A method of producing a material comprising nanocellulose and a polymer, comprising carrying out in-situ, ring opening of polymerisation of dry nanocellulose dispersed in a monomer to produce said material. The material can be used as a reinforcing additive for plastics, for example in the form of a plastics masterbatch.Type: ApplicationFiled: January 5, 2012Publication date: December 12, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Pauliina Mikkonen, Ulla Laulumaa, Pia Mikkonen
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Publication number: 20130327319Abstract: The present invention concerns a process for the mechanical or mechano-chemical treatment of biomass, wherein a mixture containing the biomass and optional further chemicals is pressed through the openings of one or more compactor one or more times. The process can be operated in a continuous manner by using more than one compactor and more than one compacting cycle, whereby the multiple compactors are operated sequentially.Type: ApplicationFiled: February 23, 2012Publication date: December 12, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Kirsi Immonen, Eino Sivonen, Kyosti Valta, Anne Kallioinen, Matti Siika-Aho
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Publication number: 20130331518Abstract: The present invention concerns a process for manufacturing a thermoformable plasticized composite containing cellulose fiber and polylactide by blending the dry cellulose fiber and a compatibilizer in a compactor into pellets, and subsequently reacting the reactive compatibilizer and the mixture of cellulose fiber and polylactide by compounding. The invention also concerns a composite manufactured using said process, as well as further processed products.Type: ApplicationFiled: March 5, 2012Publication date: December 12, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Kirsi Immonen, Eino Sivonen, Kyosti Valta, Janne Hulkko, Samu Aalto, Pauliina Pitkanen, Kirsi Salorinne
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Publication number: 20130311977Abstract: An electronic arrangement for analyzing a model-based testing scenario relating to a system under test (SUT), includes a model handler entity for obtaining and managing model data indicative of a model intended to exhibit the behavior of the SUT, a test plan handler entity for obtaining and managing test plan data indicative of a number of test cases relating to the model and expected outcome thereof, a test execution log handler entity for obtaining and managing test execution log data indicative of the execution of the test cases by the test executor and/or SUT, a communications log handler entity for obtaining and managing communications log data indicative of message traffic between the test executor entity and SUT, and an analyzer entity for detecting a number of failures and their causes in the model-based testing scenario on the basis of model, test plan, test execution log and communications log data.Type: ApplicationFiled: February 2, 2012Publication date: November 21, 2013Applicant: Teknologian turtkimuskeskus VTTInventors: Mikko Nieminen, Tomi Raty
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Publication number: 20130278356Abstract: The invention relates to an acoustically coupled thin-film BAW filter, comprising a piezoelectric layer, an input-port on the piezoelectric layer changing electrical signal into an acoustic wave (SAW, BAW), and an output-port on the piezoelectric layer changing acoustic signal into electrical signal. In accordance with the invention the ports include electrodes positioned close to each other, and the filter is designed to operate in first order thickness-extensional TE1 mode.Type: ApplicationFiled: October 14, 2011Publication date: October 24, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Johanna Meltaus, Tuomas Pensala
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Patent number: 8558643Abstract: The invention relates to a micromechanical device comprising a semiconductor element capable of deflecting or resonating and comprising at least two regions having different material properties and drive or sense means functionally coupled to said semiconductor element. According to the invention, at least one of said regions comprises one or more n-type doping agents, and the relative volumes, doping concentrations, doping agents and/or crystal orientations of the regions being configured so that the temperature sensitivities of the generalized stiffness are opposite in sign at least at one temperature for the regions, and the overall temperature drift of the generalized stiffness of the semiconductor element is 50 ppm or less on a temperature range of 100° C. The device can be a resonator. Also a method of designing the device is disclosed.Type: GrantFiled: May 10, 2012Date of Patent: October 15, 2013Assignee: Teknologian Tutkimuskeskus VTTInventors: Mika Prunnila, Antti Jaakkola, Tuomas Pensala
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Publication number: 20130244276Abstract: The present invention relates to a method for genetically modifying a filamentous fungus host for improved protein production. The method comprises that a filamentous fungus host is genetically modified to be deficient or to overexpress specific genes. The invention relates also to the modified hosts. Furthermore, the invention relates to a method for improved production or for producing an improved composition of proteins, such as cellulases, hemicellulases, other proteins involved in the degradation of lignocellulosic material, or other proteins, in a filamentous fungus host.Type: ApplicationFiled: May 30, 2011Publication date: September 19, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Tiina Pakula, Markku Saloheimo, Mari Hakkinen, Ann Westerholm-Parvinen, Merja Penttila, Marika Vitikainen
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Publication number: 20130234931Abstract: An electronic device for visualizing data and receiving related gesture-based control input from a user, configured to obtain digital image data utilizing a number of camera entities and to derive the control input on the basis of the image data, the electronic device including a display panel for displaying data to a user, and at least one protective element integrated with the display panel and including, as disposed at the periphery region around the active area of the display panel, the number of camera entities substantially embedded therein, the protective element including material that is optically substantially transparent relative to the predetermined reception wavelengths of the optically sensitive areas of the camera entities and substantially covers the sensitive areas, the camera entities in the protective element to span at least partially overlapping fields of view substantially in front of the display panel. A corresponding method of manufacture is presented.Type: ApplicationFiled: March 5, 2013Publication date: September 12, 2013Applicant: Teknologian tutkimuskeskus VTTInventors: Antti KERANEN, Mikko HEIKKINEN
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Publication number: 20130224490Abstract: The present invention relates to a process for forming cobalt nanoparticles and coating them with copper or copper oxide, in which process a copper salt is mixed to a cobalt salt so that the formed salt mixture obtains a cobalt:copper ratio of >1:1, and a reduction is carried out with a reducing gas, whereby nanoparticles are formed while a coating is formed onto their surface.Type: ApplicationFiled: February 7, 2011Publication date: August 29, 2013Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTTInventors: Ari Auvinen, Jorma Jokiniemi, Pipsa Mattila, Unto Tapper
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Publication number: 20130219773Abstract: The invention relates to a method for producing a pyrolysis liquid, wherein the pyrolysis liquid is formed by means of pyrolysis from a raw material by forming, in a pyrolysis reactor, a gaseous pyrolysis product by pyrolysis and condensing it in a condenser into a pyrolysis liquid, and feeding circulation gas into the pyrolysis reactor. According to the invention, the circulation gas is conducted by means of a liquid ring compressor into the pyrolysis reactor and purified before being conducted into the pyrolysis reactor, and the pyrolysis liquid is used as the liquid layer in the liquid ring compressor. Further, the invention relates to a corresponding apparatus.Type: ApplicationFiled: February 22, 2013Publication date: August 29, 2013Applicants: TEKNOLOGIAN TUTKIMUSKESKUS VTT, METSO POWER OYInventors: Metso Power OY, Teknologian Tutkimuskeskus VTT