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    Coil antenna and communication terminal device
    1.
    发明授权
    Coil antenna and communication terminal device 有权

    公开(公告)号：US10020582B2

    公开(公告)日：2018-07-10

    申请号：US14918747

    申请日：2015-10-21

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Nobuhito Tsubaki ,  Takashi Noma ,  Noboru Kato

    IPC: H01Q7/08 ,  H01Q19/00 ,  H01Q7/06 ,  H01Q1/24

    CPC classification number: H01Q7/08 ,  H01Q1/243 ,  H01Q7/06 ,  H01Q19/00

    Abstract: To ensure a sufficient communication distance and to concurrently suppress a conductor loss, a coil antenna includes a magnetic core including a first peripheral surface including at least a first principal surface, a first coil conductor located on the first principal surface and wound around a predetermined winding axis, a first base material layer stacked on the first principal surface, including at least a first surface parallel or substantially parallel to the first principal surface, and made of a material having a lower magnetic permeability than the magnetic core, and a second coil conductor located on at least the first surface. Opposite ends of the second coil conductor are coupled to the first coil conductor on the first principal surface, and a direction in which a current flows through the first coil conductor on the first principal surface is substantially the same as a direction in which a current flows through the second coil conductor on the first surface.

    Antenna device and electronic apparatus including antenna device
    5.
    发明授权
    Antenna device and electronic apparatus including antenna device 有权
    天线装置和包括天线装置的电子设备

    公开(公告)号：US09466871B2

    公开(公告)日：2016-10-11

    申请号：US14278080

    申请日：2014-05-15

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Shinichi Nakano ,  Masahiro Ozawa ,  Nobuhito Tsubaki

    IPC: H01Q1/24 ,  H01Q13/10 ,  H04M1/02

    CPC classification number: H01Q1/243 ,  H01Q1/241 ,  H01Q1/36 ,  H01Q1/50 ,  H01Q13/10 ,  H04B5/0031 ,  H04M1/0202

    Abstract: An antenna device includes a casing including a metal casing portion and a feed coil. The metal casing portion includes a main surface, a side surface connected to the main surfaces, and a notch portion located in the side surface. The feed coil is disposed inside the casing to be coupled with the metal casing portion by a magnetic field, and includes a winding central portion forming a coil opening portion. The feed coil is disposed near the notch portion, with the coil opening portion directed to a region including the notch portion.

    Abstract translation: 天线装置包括：壳体，包括金属壳体部分和馈送线圈。 金属外壳部分包括主表面，连接到主表面的侧表面和位于侧表面中的切口部分。 馈电线圈设置在壳体内部以通过磁场与金属壳体部分耦合，并且包括形成线圈开口部分的绕组中心部分。 馈送线圈设置在切口部分附近，线圈开口部分指向包括切口部分的区域。

    VAPOR CHAMBER
    6.
    发明申请
    VAPOR CHAMBER 有权

    公开(公告)号：US20210356215A1

    公开(公告)日：2021-11-18

    申请号：US16874937

    申请日：2020-05-15

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Akihito Naito ,  Nobuhito Tsubaki

    IPC: F28D15/04 ,  F28D15/02 ,  F28F3/12

    Abstract: The vapor chamber includes a casing, a working fluid, a microchannel, and a wick. The casing includes an upper casing sheet and a lower casing sheet that face each other and are joined together at an outer edge so as to define an internal space therebetween. The working fluid is sealed in the internal space. The microchannel is in the lower casing sheet and in communication with the internal space so as to form a flow path for the working fluid. The wick is in the internal space of the casing, and is in contact with the microchannel. An area of the wick is larger than an area of a region corresponding to the microchannel in a plan view of the vapor chamber.

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