Patents Assigned to Teknologian Tutkimuskeskus VTT
  • Patent number: 12266860
    Abstract: According to an example aspect of the present invention, there is provided an antenna element for an antenna array, comprising, a transmission line and an antenna, wherein one end of the transmission line is coupled to a base board of the antenna array and another end of the transmission line is coupled to the antenna, and a first part of the transmission line is bent about 90 degrees compared to a second part of the transmission line, and the transmission line and the antenna are on, or in, a single flexible film.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: April 1, 2025
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventor: Matti Somersalo
  • Patent number: 12256152
    Abstract: A system for providing stealthy vision, includes a source element providing electromagnetic radiation at a predetermined wavelength to illuminate a target; and a camera imaging the target to be illuminated; wherein the source element provides electromagnetic radiation including shortwave infrared light; and wherein the predetermined wavelength includes a wavelength in the near infrared spectrum wherein the absorption features of an atom or a molecule present in the medium where the electromagnetic radiation propagates form a continuum, that is a wavelength region wherein two or more narrow absorption lines are close enough to each other that they effectively form a single absorption area with a width greater than that of a single absorption line so that the range of the electromagnetic radiation in the medium is limited for all wavelengths within the continuum; wherein the region corresponds to a wavelength range centered at about 1382.8 nm, 1388.1 nm or 1392.4 nm.
    Type: Grant
    Filed: April 22, 2020
    Date of Patent: March 18, 2025
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Santeri Jeremias Seppä, Teemu Kääriäinen, Thomas Fordell
  • Patent number: 12252602
    Abstract: According to an example aspect of the present invention, there is provided a use of molar mass controlled cellulose in injection molding, extrusion and three dimensional printing applications.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: March 18, 2025
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Pia Willberg-Keyriläinen, Jarmo Ropponen, Ali Harlin, Riku Talja
  • Patent number: 12247353
    Abstract: The present invention concerns a process for the dissolution of cellulose using an enzymatic treatment, followed by a chemical dissolution. Particularly, the invention relates to the utilization of oxidizing enzymes for said enzyme treatment step. The process of the invention will cause an improved dissolution of high molar mass cellulose fibres. The improved dissolution properties also cause an improved reactivity of the cellulose in subsequent reactions.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: March 11, 2025
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Kaisa Marjamaa, Nina Aro, Kristiina Kruus, Jenni Rahikainen
  • Publication number: 20250076189
    Abstract: An apparatus for spectral imaging comprises: an illuminating unit to illuminate a linear region of an object with a linear pattern formed from a narrowband light pulse, a line scan camera to capture an image of the illuminated linear region, wherein the illuminating unit comprises: a light source to generate broadband light pulses, a tunable Fabry-Perot interferometer to form the narrowband light pulse by filtering a broadband light pulse, beam-shaping optics to form the linear pattern from the narrowband light pulse, the wavelength of the linear pattern being determined by the mirror gap of the Fabry-Perot interferometer, wherein the apparatus is arranged to change the mirror gap of the Fabry-Perot interferometer.
    Type: Application
    Filed: August 29, 2024
    Publication date: March 6, 2025
    Applicant: Teknologian tutkimuskeskus VTT Oy
    Inventors: Jussi SOUKKAMÄKI, Teemu KÄÄRIÄINEN
  • Patent number: 12209903
    Abstract: Method for calibrating a spectral imaging device comprises forming first calibration light by illuminating a first calibration region of a calibration sample with illuminating light, forming second calibration light by illuminating a second calibration region of the calibration sample with the illuminating light, measuring a first spectrum of the first calibration light by using the spectral imaging device, measuring a second spectrum of the second calibration light by using the spectral imaging device, and determining or verifying a spectral calibration function of the spectral imaging device by comparing the measured spectra with reference spectra. The spectral calibration function specifies a relation, which associates values of a control parameter with actual spectral positions. The first calibration light has a first spectral peak at a first peak wavelength, and the second calibration light has a second spectral peak at a second peak wavelength.
    Type: Grant
    Filed: October 11, 2022
    Date of Patent: January 28, 2025
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventor: Philippe Monnoyer
  • Patent number: 12209942
    Abstract: According to an example aspect of the present invention, there is provided an apparatus comprising a microelectromechanical, MEMS, capacitor comprising two plates and a gap between the plates, a gas conveyor configured to cause gas to flow through the gap, and readout circuitry configured to measure a capacitance of the MEMS capacitor.
    Type: Grant
    Filed: May 22, 2019
    Date of Patent: January 28, 2025
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Panu Koppinen, Teuvo Sillanpää, Markku Ylilammi
  • Patent number: 12209905
    Abstract: A Fabry-Perot interferometer includes a first mirror plate with a first semi-transparent mirror, a second semi-transparent mirror to define an optical cavity together with the first mirror, and one or more first supporting elements to support the first mirror plate, wherein the first mirror plate has a first substantially planar surface and a second substantially planar surface defining the maximum thickness of the first mirror plate, wherein the first mirror plate is bonded to the one or more first supporting elements by three or more joints, wherein each joint is bonded to the first mirror plate at a bonding region, wherein the distance between each bonding region and the first substantially planar surface is greater than 30% of the thickness of the mirror plate, and the distance between each bonding region and the second substantially planar surface is greater than 30% of the thickness of the mirror plate.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: January 28, 2025
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Christer Holmlund, Aki Keskisaari, Ingmar Stuns, Hans Toivanen
  • Patent number: 12209012
    Abstract: According to an example aspect of the present invention, there is provided a wafer level package for a device, the package comprising: a first substrate and a second substrate, a sealing structure comprising a seal ring and a bonding layer between the first substrate and the second substrate, and a lateral electrical connection line on a surface of the first substrate, which lateral electrical connection line extends through the seal ring for creating an electrical connection between the device inside the package and an electrical circuit outside the package.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: January 28, 2025
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventor: Jae-Wung Lee
  • Patent number: 12196731
    Abstract: A method of selectively catalytically oxidizing dinitrogen oxide present in a gaseous sample, comprising: heating a NiO catalyst to a temperature of at least 250° C.; and bringing the gaseous sample into contact with the heated NiO catalyst to oxidize dinitrogen oxide of the gaseous sample in the presence of the heated NiO catalyst.
    Type: Grant
    Filed: September 24, 2019
    Date of Patent: January 14, 2025
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Guillaume Genoud, Matti Reinikainen, Mari-Leena Koskinen-Soivi, Johannes Lehmuskoski
  • Patent number: 12187864
    Abstract: According to an example aspect of the present invention, there is provided a rapid, economically feasible method for producing continuous films with excellent properties using nanocellulose suspensions at high consistency.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: January 7, 2025
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Vinay Kumar, Aayush Kumar Jaiswal
  • Patent number: 12191843
    Abstract: 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: Grant
    Filed: June 27, 2022
    Date of Patent: January 7, 2025
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Johanna Meltaus, Tuomas Pensala
  • Patent number: 12181318
    Abstract: An ultrasound sensor apparatus comprises at least one ultrasound transmitter, which outputs ultrasound into fluid, and a frequency controller, which receives information on temperature of the fluid and controls the frequency of the ultrasound output by the at least one ultrasound transmitter as a function of the temperature of the fluid.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: December 31, 2024
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Teuvo Sillanpää, Cyril Karuthedath
  • Patent number: 12149010
    Abstract: The present invention relates to an antenna stack comprising a ground plane and a plurality of antenna layers for separate operating frequency bands, the antenna stack comprising i) an antenna on one antenna layer and at least one antenna array on at least one different antenna layer or ii) at least two antenna arrays, each on a different antenna layer. Each individual antenna layer comprises an antenna or an antenna array that operates on a frequency band that is specific to the respective antenna layer and different from frequency band or bands of other antenna layer or layers. The antenna layer comprises antenna elements manufactured by patterning conductor material on a respective flexible and/or bendable sheet of insulating material. Antenna elements on the respective antenna layer is a circularly polarized crossed dipole antenna element or a crossed dipole antenna element that is electrically configurable into circularly polarized or linearly polarized configuration.
    Type: Grant
    Filed: March 16, 2022
    Date of Patent: November 19, 2024
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventor: Matti Somersalo
  • Publication number: 20240375073
    Abstract: A method and apparatus for treating raw material in a fluidized bed reactor comprising at least two bed materials are provided. The second bed material is subjected into a lower part of the fluidized bed reactor that includes first the bed material having electroconductive material. A fluidizing agent is fed to a bottom of the fluidized bed reactor, and the fluidizing agent flows through the lower part of the reactor to an upper part of the fluidized bed reactor. The first bed material is inductively heated and heat is transferred from the first bed material to the fluidizing agent and/or to the second bed material in the lower part of the reactor. The heated second bed material is fluidized by the fluidizing agent to the upper part of reactor. The raw material is fed to the upper part of the reactor where the raw material is treated.
    Type: Application
    Filed: August 9, 2022
    Publication date: November 14, 2024
    Applicant: Teknologian tutkimuskeskus VTT Oy
    Inventors: Matti Nieminen, Juho Peltola, Timo Niemi, Janne Sami Keränen
  • Patent number: 12140795
    Abstract: An optical assembly for realizing horizontal and vertical spot-size conversion to couple light from a thin waveguide to a thick waveguide is disclosed. The assembly comprises at least one first thin waveguide with a first section having a first optical mode field and a horizontal spot-size expansion section providing spot-size conversion for a first horizontal dimension of said first optical mode field of a light beam propagating in said first waveguide, and at least one second thick waveguide with a second section having a second optical mode field and a horizontal spot-size reduction section providing spot-size conversion for a second horizontal dimension of said second optical mode field of a light beam propagating in said second waveguide.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: November 12, 2024
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventor: Timo Aalto
  • Patent number: 12142808
    Abstract: A hybrid millimeter-wave Wilkinson divider comprises an input port (1), a first output port (2), a second output port (3), and transmission lines connecting the input port (1) to the first and second output ports (2, 3) implemented by transmission lines in a carrier substrate (PCB, 31). An isolation resistor of the Wilkinson divider connected between the first and second output ports (2, 3) is integrated in a monolithic micro-wave integrated circuit (MMIC) chip (40) installed on the carrier substrate. On the MMIC chip the isolation resistor is connected between RF input metal pads. A compensation circuit for parasitic capacitances caused by the RF input metal pads is provided on the MMIC chip (40) so that the on-chip resistor appears as a pure resistance to the output ports (2, 3) of the Wilkinson divider on the carrier substrate (PCB, 31).
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: November 12, 2024
    Assignee: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Mikko Varonen, Antti Lamminen
  • Patent number: 12143079
    Abstract: According to an example aspect of the present invention, there is provided an apparatus for an antenna, comprising, a first power amplifier and a second power amplifier and a common ground between the first power amplifier and the second power amplifier, wherein a Radio Frequency, RF, output of the first power amplifier is coupled to the common ground and a RF output of the second power amplifier is coupled to the common ground.
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: November 12, 2024
    Assignee: Teknologian tutkimuskeskus VTT Oy
    Inventors: Antti Lamminen, Mikko Varonen
  • Publication number: 20240367119
    Abstract: The invention relates to an apparatus and a method for enhancing dissolution of gas in liquid. The apparatus comprises an outer structure and at least one inner structure, at least one gas inlet for injecting gas to a gas space between the outer and inner structures, a wall of the inner structure having holes with the gas arranged to flow through the holes into the inner structure, at least one liquid inlet for feeding liquid into the inner structure to provide a swirl flow arranged to capture gas bubbles of the gas from an inner surface of the wall to form a liquid-gas mixture, and the inner structure designed such that volume of space inside the inner structure increases in the direction of the liquid flow, and at least one outlet for discharging the liquid-gas mixture out from the apparatus. Further, the invention relates to the use of the apparatus.
    Type: Application
    Filed: March 24, 2022
    Publication date: November 7, 2024
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Johannes Roine, Tuula Kajolinna, Kristian Melin, Jarno Martikainen
  • Publication number: 20240352336
    Abstract: A method and a process arrangement for producing hydrocarbons from plastic-based raw material by a gasification in an integrated process The integrated process includes a gasification unit for forming a gasification product, a steam cracking unit for forming a cracking product and a recovery unit for recovering hydrocarbons. The plastic-based raw material is gasified with steam in the gasification unit having at least one fluidized bed gasifier and the gasification product is formed, the gasification product is cooled at least partly for slowing and/or stopping the chemical reactions after the gasification, The gasification product is supplied to a quench tower of the gasification unit in which the gasification product is treated and condensable components are removed from the gasification product forming a treated gasification product, and the treated gasification product and the cracking product of the steam cracking unit are supplied to the recovery unit for separating and recovering hydrocarbons.
    Type: Application
    Filed: August 9, 2022
    Publication date: October 24, 2024
    Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY
    Inventors: Matti NIEMINEN, Matti REINIKAINEN