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    OPTICAL DETECTION DEVICE AND SIGNAL PROCESSING METHOD
    1.
    发明公开
    OPTICAL DETECTION DEVICE AND SIGNAL PROCESSING METHOD 审中-公开

    公开(公告)号：US20240332323A1

    公开(公告)日：2024-10-03

    申请号：US18610629

    申请日：2024-03-20

    Applicant: TDK Corporation

    Inventor： Takekazu YAMANE ,  Tetsuya SHIBATA ,  Takeshi NOJIRI ,  Weihao ZHANG ,  Hideaki FUKUZAWA

    IPC: H01L27/144 ,  H01L31/02 ,  H01L31/032

    CPC classification number: H01L27/1443 ,  H01L31/02005 ,  H01L31/032

    Abstract: An optical detection device includes first photoelectric conversion element that outputs first output when first photoelectric conversion element is irradiated with light pulse, and second photoelectric conversion element that outputs second output when second photoelectric conversion element is irradiated with light pulse. The optical detection device is configured to combine first signal caused by first output and second signal caused by second output when first photoelectric conversion element and second photoelectric conversion element are irradiated with same light pulse each other, in a state where first condition and second condition are satisfied. The first condition is condition that time position of peak of first signal is different from time position of peak of second signal. The second condition is condition that sign of amount of change until the first signal reaches the peak is different from a sign of the amount of change until the second signal reaches the peak.

    LIGHT DETECTION ELEMENT
    2.
    发明公开
    LIGHT DETECTION ELEMENT 审中-公开

    公开(公告)号：US20230194913A1

    公开(公告)日：2023-06-22

    申请号：US18073077

    申请日：2022-12-01

    Applicant: TDK CORPORATION

    Inventor： Tomohito MIZUNO ,  Hideaki FUKUZAWA ,  Tetsuya SHIBATA

    IPC: G02F1/09 ,  H01L31/0232

    CPC classification number: G02F1/09 ,  H01L31/02327

    Abstract: The light detection element includes a light-sensitive layer configured to generate a voltage when light is applied, a first electrode, and a second electrode. The light-sensitive layer is located between the first electrode and the second electrode. The second electrode is a metal containing at least one element selected from the group consisting of ruthenium, molybdenum, and tungsten.

    TRANSCEIVER DEVICE
    5.
    发明申请
    TRANSCEIVER DEVICE 有权

    公开(公告)号：US20220131612A1

    公开(公告)日：2022-04-28

    申请号：US17507143

    申请日：2021-10-21

    Applicant: TDK CORPORATION

    Inventor： Hideaki FUKUZAWA ,  Tomohito MIZUNO ,  Tetsuya SHIBATA ,  Takashi KIKUKAWA

    IPC: H04B10/50 ,  H04B10/40 ,  H04B10/532

    Abstract: A transceiver device includes: a receiving device including a magnetic element having a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer, wherein the receiving device is configured to receive an optical signal; a transmission device including a modulated light output element, wherein the transmission device is configured to transmit an optical signal; and a circuit chip including an integrated circuit electrically connected to the magnetic element and the modulated light output element.

    OPTICAL SENSOR
    6.
    发明申请
    OPTICAL SENSOR 有权

    公开(公告)号：US20250133851A1

    公开(公告)日：2025-04-24

    申请号：US19005156

    申请日：2024-12-30

    Applicant: TDK CORPORATION

    Inventor： Hideaki FUKUZAWA ,  Dai MATSUOKA ,  Tomohito MIZUNO ,  Tetsuya SHIBATA

    IPC: H10F39/00 ,  G11C11/16 ,  H10B61/00 ,  H10N50/10 ,  H10N50/80

    Abstract: An optical sensor includes a wavelength filter configured to transmit light in a specific wavelength range and a magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer. The light passing through the wavelength filter is applied to the magnetic element and the light applied to the magnetic element is detected.

    METASURFACE REFLECTOR, PROJECTION DEVICE, AND NEAR-EYE WEARABLE DEVICE
    7.
    发明申请
    METASURFACE REFLECTOR, PROJECTION DEVICE, AND NEAR-EYE WEARABLE DEVICE 有权

    公开(公告)号：US20250102705A1

    公开(公告)日：2025-03-27

    申请号：US18891263

    申请日：2024-09-20

    Applicant: TDK Corporation

    Inventor： Tomohito MIZUNO ,  Hideaki FUKUZAWA ,  Tetsuya SHIBATA ,  Tsuyoshi KOMAKI ,  Takeshi NOJIRI

    IPC: G02B1/00 ,  G02B27/01 ,  G02B27/18

    Abstract: A metasurface reflector includes: a first metal layer and a second metal layer stacked in a first direction; a dielectric layer provided between the first metal layer and the second metal layer in the first direction; and a protective layer covering a surface of the second metal layer opposite to the dielectric layer. The dielectric layer includes a main surface on which the second metal layer is provided. The metasurface reflector is divided into a plurality of unit regions arranged in a second direction along the main surface and in a third direction along the main surface and intersecting the second direction. The second metal layer includes metal units respectively provided in all or some of the plurality of unit regions. The protective layer is made of a metal having a standard electrode potential higher than that of a metal constituting the second metal layer.

    OPTICAL DEVICE AND OPTICAL SYSTEM
    9.
    发明申请
    OPTICAL DEVICE AND OPTICAL SYSTEM 有权

    公开(公告)号：US20220317484A1

    公开(公告)日：2022-10-06

    申请号：US17694917

    申请日：2022-03-15

    Applicant: TDK CORPORATION

    Inventor： Tetsuya SHIBATA ,  Hideaki FUKUZAWA ,  Takashi KIKUKAWA ,  Tomohito MIZUNO

    IPC: G02F1/05 ,  H01S5/00

    Abstract: An optical device that includes at least one magnetic element including a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer; a substrate; and a waveguide is provided, wherein the waveguide and the magnetic element are located on or above the substrate, and wherein at least some of light propagating in the waveguide is applied to the magnetic element.

    DUAL BAND PATCH ANTENNA
    10.
    发明申请
    DUAL BAND PATCH ANTENNA 有权

    公开(公告)号：US20220006191A1

    公开(公告)日：2022-01-06

    申请号：US17477999

    申请日：2021-09-17

    Applicant: TDK Corporation

    Inventor： Tetsuya SHIBATA ,  Naoki SOTOMA

    IPC: H01Q5/307 ,  H01Q9/04

    Abstract: Disclosed herein is a dual band patch antenna that includes a first feeding part, first and second radiation conductors, a first feeding conductor having one end connected to the first feeding part and other end connected to the first radiation conductor, a second feeding conductor having one end connected to the first feeding part and other end connected to the second radiation conductor, a first open stub having one end connected to the first feeding conductor and other end opened, and a second open stub having one end connected to the second feeding conductor and other end opened.

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