公开(公告)号：US12019274B2

公开(公告)日：2024-06-25

申请号：US17608188

申请日：2020-04-30

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Mikko Harjanne ,  Timo Aalto ,  Matteo Cherchi

IPC: G02B6/27 ,  G02B5/30 ,  G02B6/126 ,  G02B27/28 ,  G02F1/01

CPC classification number: G02B6/2766 ,  G02B5/3083 ,  G02B6/126 ,  G02B27/286 ,  G02F1/0136

Abstract: The invention concerns a polarization rotator. The inventive polarization rotator comprises an optical coupler comprising a waveguide having at one first end at least a first port configured as an input port for polarized light and a second port configured as an output port for reflected polarized light, said waveguide having a second end opposite to said first end. It further comprises a birefringent waveplate having on one side a reflective surface, which waveplate is arranged to receive light from said second end of said waveguide and to reflect light transmitted out from said coupler back into said coupler. According to the invention, the waveplate is further configured to cause said birefringent material to rotate the polarization of said reflected light, which amount of rotation depends on an angle of rotation of said birefringent waveplate with respect to said optical coupler.

公开(公告)号：US20240200996A1

公开(公告)日：2024-06-20

申请号：US18555785

申请日：2022-04-13

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Teuvo SILLANPÄÄ ,  Cyril KARUTHEDATH

IPC: G01F1/667

CPC classification number: G01F1/668

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.

公开(公告)号：US11980848B2

公开(公告)日：2024-05-14

申请号：US18136938

申请日：2023-04-20

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Kristian Melin ,  Pekka Simell ,  Esa Kurkela ,  Marjut Suomalainen

IPC: B01D53/75 ,  B01D53/14 ,  B01D53/18 ,  B01D53/62 ,  B01D53/78

CPC classification number: B01D53/75 ,  B01D53/1406 ,  B01D53/1475 ,  B01D53/1493 ,  B01D53/18 ,  B01D53/62 ,  B01D53/78 ,  B01D2251/304 ,  B01D2251/606 ,  B01D2252/103

Abstract: An apparatus for purifying gas where gas is treated in a multistage treatment having at least two ejector stages, a motive medium including liquid, steam or gaseous agent at high pressure injected by an ejector of the ejector stage, and the gas is sucked into the same ejector and mixed with the motive medium for forming a mixture, at least a part of gas and/or liquid phase of the mixture is supplied to a second ejector stage having so that a second motive medium which includes liquid, steam or gaseous agent is injected to the ejector and the gas and/or the liquid phase is sucked into the same ejector in which the gas and/or liquid phase is mixed with the second motive medium for forming a second mixture, at least one of the mixtures includes an additive for removing impurities of the gas, and a purified gas is formed.

公开(公告)号：US20240150664A1

公开(公告)日：2024-05-09

申请号：US18411898

申请日：2024-01-12

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Matti NIEMINEN ,  Matti REINIKAINEN

IPC: C10J3/48 ,  C08J11/14

CPC classification number: C10J3/482 ,  C08J11/14 ,  C10J2300/0946 ,  C10J2300/0976 ,  C10J2300/1656 ,  C10J2300/1671 ,  C10J2300/18

Abstract: A method and process arrangement for producing hydrocarbons from polymer-based waste in which the polymer-based waste is gasified with steam at low temperature in a gasifier for forming a product mixture, and the temperature is 640-750° C., and the product mixture is supplied from the gasifier to a recovery unit of the hydrocarbons for separating at least one hydrocarbon fraction.

公开(公告)号：US20240148025A1

公开(公告)日：2024-05-09

申请号：US18280507

申请日：2022-03-08

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Markus Nikinmaa ,  Lauri Huitula ,  Nesli Sözer ,  Emilia Nordlund

IPC: A23J3/26 ,  A23J1/12 ,  A23J1/14 ,  A23J3/14 ,  A23L7/17 ,  A23L11/00

CPC classification number: A23J3/26 ,  A23J1/12 ,  A23J1/14 ,  A23J3/14 ,  A23L7/17 ,  A23L11/05

Abstract: According to an aspect of the present invention, there is provided a process for forming protein-rich extrudates comprising: (i) extruding a protein-containing source material to form a plurality of protein-rich extrudates and a plurality of non-protein extrudates; and (ii) separating the plurality of protein-rich extrudates from the plurality of non-protein extrudates. The extruded products produced by the above method find industrial application, for example, as additives to food products or stand-alone food products.

公开(公告)号：US11953535B2

公开(公告)日：2024-04-09

申请号：US17260825

申请日：2019-07-17

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Mikko Varonen ,  Henrik Forsten ,  Jan Saijets

IPC: G01R29/08 ,  G01R35/00 ,  H03B29/00 ,  H03F1/22 ,  H03F3/19 ,  H03F3/72

CPC classification number: G01R29/0878 ,  G01R35/005 ,  H03B29/00 ,  H03F1/22 ,  H03F3/19 ,  H03F3/72 ,  H03F2200/207 ,  H03F2200/451

Abstract: An active noise source apparatus includes a pair of a first and second switched-biased noise amplifier branches (22, 23). A directional coupler (24) having a pair of input ports (3, 4) connected to combine the noise outputs from the first and second switched-biased noise amplifiers. One output port (4) of the directional coupler (24) is connected to a matched termination (Rtermination) and another output port (2) of the directional coupler (24) is connected to an output (25) of the active noise source.

公开(公告)号：US20240088566A1

公开(公告)日：2024-03-14

申请号：US18553294

申请日：2022-03-16

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Matti SOMERSALO

IPC: H01Q9/04 ,  H01Q1/28 ,  H01Q1/38 ,  H01Q1/50 ,  H01Q19/10

CPC classification number: H01Q9/0414 ,  H01Q1/288 ,  H01Q1/38 ,  H01Q1/50 ,  H01Q19/108

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. Each antenna layer has a predefined distance from the ground plane, wherein the predefined distance between the antenna or antenna array comprised on the respective antenna layer and the ground plane is defined based of the frequency band of the respective antenna or antenna array.

公开(公告)号：US20240063547A1

公开(公告)日：2024-02-22

申请号：US18271247

申请日：2022-01-05

Applicant: Teknologian tutkimuskeskus VTT Oy

Inventor： Matti Somersalo

IPC: H01Q9/28 ,  H01Q21/24

CPC classification number: H01Q9/28 ,  H01Q21/24 ,  H01P1/00

Abstract: According to an example aspect of the present invention, there is provided an antenna module comprising a Radio Frequency, RF, component electrical connection platform, a dipole antenna on top of, or buried in, the platform, wherein the dipole antenna is arranged to transmit and/or receive an RF signal and a distance between a ground at a bottom of the platform and arms of the dipole antenna is about a quarter of a wavelength of the RF signal and a pair of via holes comprising a first via hole and a second via hole extending through the platform, from the ground of the platform to the arms of the dipole antenna, wherein the first via hole is coupled to an RF feed and to a first arm of the dipole antenna and the second via hole is coupled to the ground at the bottom of the platform and to a second arm of the dipole antenna.

公开(公告)号：US20240038680A1

公开(公告)日：2024-02-01

申请号：US18278241

申请日：2022-02-17

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Janne LEHTINEN ,  Antti KEMPPINEN ,  Emma MYKKÄNEN ,  Mika PRUNNILA ,  Alberto RONZANI

IPC: H01L23/552 ,  H10N60/81 ,  H01L29/66

CPC classification number: H01L23/552 ,  H10N60/81 ,  H01L29/66977

Abstract: A device for shielding at least one component from thermal radiation, the device comprising at least a first substrate with a first surface and a second surface and a second substrate with a first surface and second surface, the first surface of the second substrate being arranged to at least partially face the second surface of the first substrate. The device additionally comprises at least a first component arranged on the first surface of the second substrate or the second surface of the first substrate and a shielding arrangement comprising a plurality of shielding elements-comprising electrically conductive material, the shielding elements being configured to essentially surround at least the first component to provide a shielded area within which the first component is located, wherein electromagnetic radiation having wavelength longer than a selected first wavelength is essentially prevented from reaching the shielded area.

公开(公告)号：US20230415198A1

公开(公告)日：2023-12-28

申请号：US18035892

申请日：2021-11-08

Applicant: TEKNOLOGIAN TUTKIMUSKESKUS VTT OY

Inventor： Cyril KARUTHEDATH ,  Abhilash THANNIYIL ,  Teuvo SILLANPÄÄ ,  Tuomas PENSALA

IPC: B06B1/06

CPC classification number: B06B1/0666

Abstract: There is provided an ultrasonic transducer configured to provide passive temperature compensation for a stable operation over a wide bandwidth. The ultrasonic transducer comprises a cavity for communications of ultrasonic waves and a membrane supported movable between walls of the cavity. The membrane comprises a structural layer on a side of the membrane towards the cavity and a piezoelectric layer attached to the structural layer on an opposite side of the membrane with respect to the cavity. Temperature coefficients of Young's modulus of the structural layer and the piezoelectric layer have opposite signs for passive temperature compensation of operating frequency of the piezoelectric ultrasonic transducer.