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    Biosensor and biochip
    2.
    发明授权
    Biosensor and biochip 有权

    公开(公告)号：US10948395B2

    公开(公告)日：2021-03-16

    申请号：US16089122

    申请日：2017-03-24

    Applicant: TDK CORPORATION

    Inventor： Susumu Haratani ,  Sachio Tsuboike ,  Sumiko Kitagawa ,  Takashi Kikukawa ,  Haruki Yuga

    IPC: G01N15/06 ,  G01N33/543 ,  G01N27/74 ,  G01N15/00

    Abstract: What provided is a biosensor including: a substrate having a surface with first and second regions adjacent each other; a magnetoresistance effect element disposed on the first region; a soft magnetic thin film on the second region; a protective film disposed on both the first region and the second region, covering a surface of the soft magnetic thin film, and disposed on the top part of the second region and contains an affinity substance recognizing the biomolecule on the outer surface of the second region exclusively; and an MR cover film disposed on at least the top part of the first region, disposed on the protective film above the magnetoresistance effect element, and being free of the affinity substance, wherein the soft magnetic thin film transmits an in-plane component of a stray magnetic field of magnetic beads to the magnetoresistance effect element.

    Chemical sensor
    3.
    发明授权
    Chemical sensor 有权

    公开(公告)号：US10801993B2

    公开(公告)日：2020-10-13

    申请号：US16087833

    申请日：2017-03-24

    Applicant: TDK CORPORATION

    Inventor： Sachio Tsuboike ,  Susumu Haratani ,  Sumiko Kitagawa ,  Takashi Kikukawa ,  Haruki Yuga

    IPC: G01N27/72 ,  C12Q1/6816 ,  G01N27/74 ,  C12Q1/6825 ,  G01N33/543

    Abstract: A chemical sensor that enables high detection accuracy that includes a soft-magnetic-material film, a magnetoresistance-effect element, a first film disposed over the soft-magnetic-material film, and a second film disposed over the magnetoresistance-effect element, wherein, when viewed from a direction perpendicular to the film surface of the soft-magnetic-material film, the soft-magnetic-material film is disposed at least partially so as not to overlap the magnetoresistance-effect element; when viewed from the direction perpendicular to the film surface of the soft-magnetic-material film, the magnetoresistance-effect element is disposed at least partially so as not to overlap the soft-magnetic-material film; and the second film has higher solubility in a specific liquid than the first film.

    Laser Scanner Particle Counter and Imager
    5.
    发明申请
    Laser Scanner Particle Counter and Imager 审中-公开

    公开(公告)号：US20170160187A1

    公开(公告)日：2017-06-08

    申请号：US14962040

    申请日：2015-12-08

    Applicant: TDK Corporation

    Inventor： Celine Hu ,  Sumiko Kitagawa ,  Koki Kawamura ,  Po-Kang Wang

    IPC: G01N15/14

    CPC classification number: G01N15/0612 ,  G01N2015/0065

    Abstract: An apparatus for detecting the presence of a specific molecular species in a mixture of species operates by first flowing the mixture through microfluidic channels onto a substrate to which the specific species bonds, then attaching electromagnetic radiation scattering particles to the bonded species, then scanning the substrate with a uniform flux of laser radiation and relating the intensity of the scattered portion of the radiation to the density of particles captured by the molecular species affixed to the substrate. The substrate can be scanned either by: 1. applying oscillating mirrors to reflect the laser beam and uniformly scan the substrate; 2. moving the entire laser relative to the substrate so that its beam uniformly scans the substrate; 3. moving the entire substrate uniformly in the x-y plane while keeping the laser and its beam fixed.

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