中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

21 records (took 0.017 seconds)

    Optical Security Device Providing Color Switching Or Image Switching Effect
    3.
    发明公开
    Optical Security Device Providing Color Switching Or Image Switching Effect 审中-公开

    公开(公告)号：US20240208258A1

    公开(公告)日：2024-06-27

    申请号：US18600714

    申请日：2024-03-09

    Applicant: Meta Materials Inc.

    Inventor： Milad Khoshnegar Shahrestani ,  Clint K. Landrock ,  Ehsan Nahvi

    IPC: B42D25/387 ,  B42D25/29 ,  B42D25/425 ,  G02B1/00

    CPC classification number: B42D25/387 ,  B42D25/29 ,  B42D25/425 ,  G02B1/002

    Abstract: An optical security feature has pixels with faceted microstructures supporting nano-patterned optical filters. Each of the pixels includes a substrate and a nanostructure. The substrate is configured to emit light of at least a first wavelength and a second wavelength different than the first wavelength. The microstructure includes a first facet, a second facet non-parallel to the first facet, a first nano-patterned optical filter disposed on the first facet, and a second nano-patterned optical filter disposed on the second facet. The first nano-patterned optical filter includes a first stopband that includes the first wavelength and excludes the second wavelength. The second nano-patterned optical filter includes a second stopband that includes the second wavelength and excludes the first wavelength. For each pixel, the first nano-patterned optical filter inhibits emission of light at the first wavelength from the pixel via the first facet.

    Dual-Mode Biosensor
    7.
    发明公开
    Dual-Mode Biosensor 审中-公开

    公开(公告)号：US20240065584A1

    公开(公告)日：2024-02-29

    申请号：US18241829

    申请日：2023-09-01

    Applicant: Meta Materials Inc.

    Inventor： Ahmed Teyeb ,  Jamil Kanfoud ,  Tat Hean Gan ,  Andrew Mark ,  Helena Cano-Garcia ,  Efthymios Kallos ,  Fergus O'Brien

    IPC: A61B5/145 ,  A61B5/1455 ,  A61B5/00

    CPC classification number: A61B5/14532 ,  A61B5/1455 ,  A61B5/7257 ,  A61B5/6825 ,  A61B5/6831

    Abstract: A method for measuring glucose concentration in a biological material is disclosed, as well as a computer readable medium and a sensor system for performing the method. The method comprises irradiating the biological material with optical radiation having a first wavelength between 400 nanometers and 25 micrometers; detecting a first signal from the biological material at the first wavelength; irradiating the biological material with radio-frequency, RF, radiation having a second wavelength between 1 millimeter and 30 centimeters; detecting a second signal from the biological material at the second wavelength; and determining a concentration of glucose in the biological material based on the first signal and the second signal. The sensor system comprises an optical radiation source, an optical radiation detector, an RF radiation source, and RF radiation detector, and a processing device.

    Banknote, identification card, passport, check, security document, government stamp, vehicle registration or package with security feature
    8.
    外观设计
    Banknote, identification card, passport, check, security document, government stamp, vehicle registration or package with security feature 有权

    公开(公告)号：USD1014620S1

    公开(公告)日：2024-02-13

    申请号：US29809720

    申请日：2021-09-29

    Applicant: Meta Materials Inc.

    Designer： Clinton Kenneth Landrock ,  Hsin Yuan Chang

    Abstract: FIG. 1 is a front view of the security feature shown removed from the banknote, identification card, passport, check, security document, government stamp, vehicle registration, or package, with security feature showing our new design as viewed from a first angle;
    FIG. 2 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 3 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 4 is a front view of a banknote with security feature showing our new design as viewed from a first angle;
    FIG. 5 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 6 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 7 is a front view of an identification card with security feature showing our new design as viewed from a first angle;
    FIG. 8 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 9 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 10 is a front view of a passport with security feature showing our new design as viewed from a first angle;
    FIG. 11 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 12 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 13 is a front view of a government stamp with security feature showing our new design as viewed from a first angle;
    FIG. 14 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 15 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 16 is a front view of a vehicle registration with security feature showing our new design as viewed from a first angle;
    FIG. 17 is a front view thereof, as viewed from a second angle that is different from the first angle;
    FIG. 18 is a front view thereof, as viewed from a third angle that is different from the first and second angles;
    FIG. 19 is a front view of a package with security feature showing our new design as viewed from a first angle;
    FIG. 20 is a front view thereof, as viewed from a second angle that is different from the first angle; and,
    FIG. 21 is a front view thereof, as viewed from a third angle that is different from the first and second angles.
    The appearance of the transitional image transitions between the images shown in FIGS. 1-3, 4-6, 7-9, 10-12, 13-15, 16-18, and 19-21, respectively. The process or period in which one image transitions to another image forms no part of the claimed design.
    The broken lines in the figures illustrate portions of the security feature and environment that forms no part of the claimed design.

    MODE SHAPING IN MICROWAVE OVENS USING ELECTROMAGNETIC METAMATERIALS AND METASURFACES
    10.
    发明公开
    MODE SHAPING IN MICROWAVE OVENS USING ELECTROMAGNETIC METAMATERIALS AND METASURFACES 审中-公开

    公开(公告)号：US20230319958A1

    公开(公告)日：2023-10-05

    申请号：US17710696

    申请日：2022-03-31

    Applicant: Meta Materials Inc.

    Inventor： Yaroslav A. Urzhumov

    IPC: H05B6/74 ,  H05K9/00 ,  H05B6/64

    CPC classification number: H05B6/74 ,  H05K9/0056 ,  H05B6/6402

    Abstract: Systems and methods for facilitating substantially uniform dielectric heating capacities. In one aspect, a microwave device comprises a microwave power source and a microwave cavity. The microwave cavity comprises a plurality of surfaces, an empty domain, and a feed connected to the microwave power source for receiving microwave energy from the microwave power source to create a microwave field distribution within the microwave cavity. The microwave device also comprises a plurality of electromagnetic metamaterial layers disposed at different orientations with respect to a surface of the microwave cavity. The plurality of electromagnetic metamaterial layers affect the microwave field distribution and forming a substantially spatially uniform, time-averaged electric field intensity throughout the empty domain of the microwave cavity from the microwave energy.

Patent Agency Ranking