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    METHOD OF MARKING A SOLID-STATE MATERIAL, MARKINGS FORMED FROM SUCH METHODS AND SOLID-STATE MATERIALS MARKED ACCORDING TO SUCH A METHOD
    1.
    发明申请
    METHOD OF MARKING A SOLID-STATE MATERIAL, MARKINGS FORMED FROM SUCH METHODS AND SOLID-STATE MATERIALS MARKED ACCORDING TO SUCH A METHOD 有权

    公开(公告)号：US20220355416A1

    公开(公告)日：2022-11-10

    申请号：US17624325

    申请日：2020-07-24

    Applicant: MASTER DYNAMIC LIMITED

    Inventor： Yau Chuen YIU ,  Ka Wing CHENG ,  Koon Chung HUI

    IPC: B23K26/359 ,  G06V20/80 ,  B23K26/0622 ,  B23K26/06 ,  B23K26/082 ,  B23K26/08

    Abstract: A process of forming a non-optically detectable authentication marking (210,320, 410,535) in a diamond (200,300). Authentication marking (210,320,410,535) is formed adjacent the outer surface of an article formed from a diamond material having intrinsic optical centers. Method includes the step of applying an image of predesigned authentication marking(210,320,410,535) to a region (201,310,530) of a diamond (200,300) at or adjacent the surface of the diamond (200,300) by way of a direct laser writing; wherein the fluorescence background of the diamond material from intrinsic optical center is suppressed by authentication marking(210,320, 410, 535) under fluorescent imaging, such that the non-optically detectable identifiable authentication marking (210,320,410,535) is viewable against the fluorescence background at the region (201,310,530) of the diamond (200,300) where the authentication marking (210,320,410,535) is applied.

    METHOD OF MARKING A DIAMOND, MARKINGS FORMED FROM SUCH METHODS AND DIAMONDS MARKED ACCORDING TO SUCH METHOD
    2.
    发明申请
    METHOD OF MARKING A DIAMOND, MARKINGS FORMED FROM SUCH METHODS AND DIAMONDS MARKED ACCORDING TO SUCH METHOD 有权

    公开(公告)号：US20220274291A1

    公开(公告)日：2022-09-01

    申请号：US17624332

    申请日：2020-07-24

    Applicant: MASTER DYNAMIC LIMITED

    Inventor： Yau Chuen YIU ,  Ka Wing CHENG ,  Koon Chung HUI

    IPC: B28D5/04 ,  B42D25/435 ,  B42D25/324

    Abstract: A process of forming a non-optically detectable authentication marking (110), includes the step of: applying a marking at a surface of a diamond (200) using a focused ion beam (FIB) writing process so as to provide a non-optically detectable authentication marking (110) which is formed by alteration in the optical characteristics of a portion of the diamond material at the outer surface of the diamond to form a marked portion; wherein the marking is optically invisible, and wherein the marking is viewable by an imaging method which provides an observable contrast between the portion of the diamond having altered optical characteristics and the non-marked portion of the diamond. The marking process can assist in the prevention of the counterfeiting of precious articles, and be of assistance in the incident of theft. A marking, a diamond, a process of viewing a marking on a diamond are further disclosed.

    IMAGING PROCESS AND SYSTEM
    3.
    发明公开
    IMAGING PROCESS AND SYSTEM 审中-公开

    公开(公告)号：US20230168238A1

    公开(公告)日：2023-06-01

    申请号：US17919406

    申请日：2021-04-16

    Applicant: MASTER DYNAMIC LIMITED

    Inventor： Yau Chuen YIU ,  Koon Chung HUI ,  Yan Yan MOK

    IPC: G01N33/38 ,  G01N23/046 ,  G01N23/20025

    CPC classification number: G01N33/381 ,  G01N23/046 ,  G01N23/20025

    Abstract: A system (300) for providing a three-dimensional computer tomography image of a gemstone, the system (300) comprising an X-ray source (330) for providing an X-ray towards a gemstone (320); an X-ray detector system for detecting X-rays transmitted through or diffracted by the gemstone (320). The X-ray detector system surrounds the gemstone (320) and detects a three-dimensional multi-angle X-ray diffraction pattern from the gemstone (320) upon rotation of the gemstone (320) within the X-ray field, and provides an output signal therefrom, wherein the output signal provides for invasive three-dimension multiangle X-ray diffraction reconstructed computed tomography from the three-dimension multiangle X-ray diffraction pattern.

    METHOD OF PROVIDING MARKINGS TO PRECIOUS STONES INCLUDING GEMSTONES AND DIAMONDS, AND MARKINGS AND MARKED PRECIOUS STONES MARKED ACCORDING TO SUCH A METHOD
    5.
    发明申请
    METHOD OF PROVIDING MARKINGS TO PRECIOUS STONES INCLUDING GEMSTONES AND DIAMONDS, AND MARKINGS AND MARKED PRECIOUS STONES MARKED ACCORDING TO SUCH A METHOD 审中-公开
    向包括钻石和钻石在内的重要石碑提供标记的方法，以及根据这种方法标记的标记和标记的重要石碑

    公开(公告)号：US20150101365A1

    公开(公告)日：2015-04-16

    申请号：US14286306

    申请日：2014-05-23

    Applicant: Master Dynamic Limited

    Inventor： Koon Chung HUI ,  Wing Chi TANG ,  Ho CHING

    IPC: G09F3/00 ,  G01J1/08 ,  G02B5/18 ,  G09F23/00 ,  A44C17/00

    CPC classification number: G09F3/00 ,  A44C17/00 ,  B23K26/0006 ,  B23K26/355 ,  B23K2103/50 ,  B41M5/24 ,  G01J1/08 ,  G01N21/87 ,  G02B5/1842 ,  G02B5/1857 ,  G02B5/1861 ,  G09F23/00

    Abstract: An identifiable mark on a portion of a polished facet of a surface of an article and being identifiable by an optical magnifying viewing device, said identifiable mark comprising a nano-structure formed by a two-dimensional or a three-dimensional lattice of a plurality of discrete nanometer sized recessed or protruded entities, wherein said entities are arranged within a predefined region of said polished facet in a predetermined arrangement in relation to each other and such that an outer interface surface between the facet of the article and air is formed and an inner interface surface between the facet of the article and air is formed. Said predetermined arrangement of said entities is non-uniform and non-periodic arrangement, and wherein said entities are sized and shaped so as to cause optical scattering upon reflection of incident light and the distance from the inner interface surface to the outer interface surface is greater than the amplitude of the non-marked portion of said polished face. Upon reflection of incident light having one or more predetermined wavelengths by said lattice at a predetermined angle of incidence to said lattice, interference due to scattering of light from said lattice is induced such that said reflected light has a variation in intensity providing one or more local maxima of one or more wavelengths. Said mark is identifiable by way of an optical magnifying viewing device inclined at a requisite viewing angle such that a local maxima is detected.

    Abstract translation: 在物品表面的抛光小面的一部分上的可识别的标记并且可由光学放大观察装置识别，所述可识别标记包括由多个或多个的二维或三维网格形成的纳米结构 离散的纳米尺寸的凹入或突出的实体，其中所述实体以相对于彼此的预定布置布置在所述抛光小面的预定区域内，并且使得形成制品的小面与空气之间的外部界面表面， 形成制品的小面与空气之间的界面。 所述实体的所述预定布置是不均匀和非周期性布置，并且其中所述实体的尺寸和形状被设计成在入射光反射时引起光学散射，并且从内部界面表面到外部界面表面的距离更大 比所述抛光面的未标记部分的幅度大。 通过所述格子以预定的入射角对所述格子反射具有一个或多个预定波长的入射光，由于来自所述晶格的光的散射引起的干涉被引起，使得所述反射光具有提供一个或多个局部 一个或多个波长的最大值。 所述标记可通过以必要的视角倾斜的光学放大观察装置来识别，从而检测到局部最大值。

    NANOPARTICLE DELIVERY SYSTEM
    6.
    发明申请
    NANOPARTICLE DELIVERY SYSTEM 有权

    公开(公告)号：US20220031863A1

    公开(公告)日：2022-02-03

    申请号：US17299568

    申请日：2019-12-03

    Applicant: MASTER DYNAMIC LIMITED

    Inventor： Ka Wing CHENG ,  Koon Chung HUI ,  Ching Tom KONG

    IPC: A61K47/69 ,  A61K47/64

    Abstract: A conjugate (110) comprising a nanoparticle (210) for delivery of a drug to a treatment site in the body of a subject; a drug molecule (220) releasably linked to said nanoparticle (210), wherein said drug molecule (220) has a therapeutic effect at the treatment site in the body of the subject; and a disease targeting molecule (230) releasably linked to said nanoparticle (210); wherein upon said conjugate (110) being adjacent diseased tissue (240) of a subject, said disease targeting molecule (230) retains the conjugate (110) adjacent said diseased tissue (240); said drug molecule (220) is released from said nanoparticle (110) so as to provide a therapeutic effect to said diseased tissue (240); and said disease targeting molecule (230) is subsequently released from said nanoparticle (210) such that retention of the nanoparticle (210) is released, and such that the nanoparticle (210) is dispersible from said diseased tissue (240).

    HYPERPOLARISATION DEVICE, SYSTEM AND PROCESS
    8.
    发明申请
    HYPERPOLARISATION DEVICE, SYSTEM AND PROCESS 有权

    公开(公告)号：US20230137188A1

    公开(公告)日：2023-05-04

    申请号：US17802470

    申请日：2021-02-26

    Applicant: MASTER DYNAMIC LIMITED

    Inventor： Yau Chuen YIU ,  Juan CHENG ,  Koon Chung HUI

    IPC: G01R33/56 ,  G01R33/28

    Abstract: A device(100a(i), 100a(ii), 100a(iii), 100a(iv), 200 for cis-tracing polarization of 12C isotope-based magnetic resource imaging contrast agents, comprising one or more diamond material structures(120(i), 120(ii), 120(iii), 120(iv), 210, 220) and one or more channels(105a(i), 105a (ii), 105a (iii), 105a (iv), 205) provided adjacent to the diamond material structures 120(i), 120(ii), 120(iii), 120(iv), 210, 220); the diamond material structures 120(i), 120(ii), 120(iii), 120(iv), 210, 220) provide a source of negatively charged nitrogen vacancy celles for polarization of a 13C iso-type-based magnetic measure imaging contrast agesi disguised in one or more channels(105a (i), 105a (ii), 105a (iii), 105a (iv), 205) and cis diamond material structure(120(i), 120(ii), 120(iii), 120(iv), 210, 220) provides a light guide for light for excitation of nitrogen vacancy celles for polarization of 13C isotope-based magnetic resource imaging contrast agent.

    CANCER CELL DETECTION AND IMAGING SYSTEM, PROCESS AND PRODUCT
    10.
    发明申请
    CANCER CELL DETECTION AND IMAGING SYSTEM, PROCESS AND PRODUCT 有权

    公开(公告)号：US20210172953A1

    公开(公告)日：2021-06-10

    申请号：US17254736

    申请日：2019-06-21

    Applicant: MASTER DYNAMIC LIMITED

    Inventor： Ka Wing CHENG ,  Koon Chung HUI ,  Ching Tom KONG

    IPC: G01N33/574 ,  G01N21/64 ,  G01N33/58

    Abstract: A method of distinguishing cancerous cells and healthy cells of a subject from each other comprises the steps: (i) contacting a region of tissue of a subject suspected of including at least some cancer cells with a plurality of nanodiamonds, wherein the plurality of nanodiamonds comprise a first plurality of conjugates, wherein the conjugates of the first plurality of conjugates consist of first nanodiamonds and one or more cancer cell targeting agents, wherein the first nanodiamonds have a first type of colour center, and a second plurality of conjugates, wherein the conjugates of the second plurality of conjugates consist of second nanodiamonds and one or more healthy cell targeting agents, wherein the second nanodiamonds have a second type of colour center; and (ii) applying light of a first wavelength so as to excite the first type of colour center and applying light of a second wavelength so as to excite the second type of colour center, wherein upon contacting the region of tissue with the plurality of nanodiamonds, cancer cells are adhered to the first plurality of conjugates, and healthy cells are adhered to the second plurality of conjugates; wherein upon applying light to the region of tissue, the colour centers of the nanodiamonds of the first plurality of conjugates adhered to cancer cells emit fluorescence at a first wavelength, and the colour centers of the nanodiamonds of the second plurality of conjugates adhered to healthy cells emit fluorescence at a second wavelength; and wherein the colour contrast between the two wavelengths and the positions of respective conjugates delineate the area of cancer cells and the area of healthy cells from each other.

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