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    PHOTONIC CRYSTAL ELEMENT
    4.
    发明申请
    PHOTONIC CRYSTAL ELEMENT 有权

    公开(公告)号：US20230112992A1

    公开(公告)日：2023-04-13

    申请号：US18062733

    申请日：2022-12-07

    申请人： NGK Insulators, Ltd.

    发明人： Jungo KONDO ,  Makoto IWAI ,  Keiichiro ASAI ,  Tomoyoshi TAI ,  Kentaro TANI

    IPC分类号： G02F1/025 ,  G02F1/225

    摘要： Provided is a photonic crystal element, which shows small delay of an electric signal, shows a small propagation loss, and has uniform characteristics over its entirety. The photonic crystal element includes a two-dimensional photonic crystal slab having holes periodically formed in a substrate made of a ceramics material, the photonic crystal element being configured to guide an electromagnetic wave having a frequency of 30 GHz or more and 20 THz or less.

    BONDED BODY AND ACOUSTIC WAVE ELEMENT
    5.
    发明申请
    BONDED BODY AND ACOUSTIC WAVE ELEMENT 有权

    公开(公告)号：US20220149811A1

    公开(公告)日：2022-05-12

    申请号：US17579678

    申请日：2022-01-20

    申请人： NGK INSULATORS, LTD.

    发明人： Ryosuke HATTORI ,  Keiichiro ASAI ,  Tomoyoshi TAI ,  Yudai UNO

    IPC分类号： H03H9/02 ,  H03H3/10 ,  H01L41/312

    摘要： A bonded body includes a supporting substrate, piezoelectric material substrate and a multilayer film, between the supporting substrate and piezoelectric material substrate. The multilayer film includes a lamination structure having a first layer, second layer, third layer and fourth layer in the order. The first layer and third layer are composed of silicon oxides, and the second layer and fourth layer are composed of metal oxides. The refractive index of the second layer is higher than the refractive index of the first layer and refractive index of the third layer. The refractive index of the second layer is different from the refractive index of the fourth layer.

    OPTICAL COMPONENT
    6.
    发明申请
    OPTICAL COMPONENT 审中-公开

    公开(公告)号：US20190309936A1

    公开(公告)日：2019-10-10

    申请号：US16437720

    申请日：2019-06-11

    申请人： NGK Insulators, Ltd.

    发明人： Jungo KONDO ,  Naotake OKADA ,  Keiichiro ASAI ,  Shuhei HIGASHIHARA ,  Shoichiro YAMAGUCHI

    IPC分类号： F21V29/502 ,  F21V9/32 ,  B32B18/00 ,  B32B7/04 ,  C09K11/77 ,  C04B37/00

    摘要： An optical component includes a first substrate including a phosphor substrate and a second substrate including a translucent substrate and supporting the first substrate. A bonding layer is provided between the first substrate and the second substrate, and the bonding layer includes at least one kind of element contained on a surface of the first substrate facing the second substrate and at least one kind of element contained on a surface of the second substrate facing the first substrate. The bonding layer contains 2% by weight or more and 45% by weight or less of at least one kind of metal element which is not included in any of the first substrate and the second substrate.

    OPTICAL ELEMENT MANUFACTURING METHOD
    8.
    发明申请
    OPTICAL ELEMENT MANUFACTURING METHOD 审中-公开
    光学元件制造方法

    公开(公告)号：US20170028657A1

    公开(公告)日：2017-02-02

    申请号：US15291310

    申请日：2016-10-12

    申请人： NGK INSULATORS, LTD.

    发明人： Keiichiro ASAI ,  Shoichiro YAMAGUCHI ,  Jungo KONDO ,  Toshihiro TOMITA

    IPC分类号： B29D11/00 ,  G02B5/18 ,  B29C59/02

    CPC分类号： B29D11/0074 ,  B29C59/022 ,  B29C59/026 ,  B29C2059/023 ,  B29D11/00769 ,  B29L2011/00 ,  G02B5/1852 ,  G02B5/1857 ,  G02B6/34 ,  H01S5/12 ,  H01S5/1231

    摘要： It is produced an optical element including a support substrate, a clad layer provided on the support substrate, an optical material layer provided on the clad layer and a fine pattern formed in the optical material layer. The optical element has a warpage of +70 μm or more and +2.0 mm or less. At least a resin layer is formed on the optical material layer. It is used a mold with a design pattern corresponding to the fine pattern formed therein. The design pattern is transferred to the resin layer by an imprinting method. The fine pattern is formed in the optical material layer by a dry etching method. The mold is capable of being deformed conforming to a curve of the resin layer.

    摘要翻译： 制造了包括支撑基板，设置在支撑基板上的覆盖层，设置在包覆层上的光学材料层和形成在光学材料层中的精细图案的光学元件。 光学元件的翘曲为+70μm以上且+ 2.0mm以下。 至少在光学材料层上形成树脂层。 使用具有与其中形成的精细图案相对应的设计图案的模具。 设计图案通过压印方法转印到树脂层。 通过干蚀刻法在光学材料层中形成精细图案。 模具能够根据树脂层的曲线变形。

    PHOSPHOR ELEMENT AND ILLUMINATION DEVICE
    10.
    发明申请
    PHOSPHOR ELEMENT AND ILLUMINATION DEVICE 审中-公开

    公开(公告)号：US20190310408A1

    公开(公告)日：2019-10-10

    申请号：US16440090

    申请日：2019-06-13

    申请人： NGK INSULATORS, LTD.

    发明人： Jungo KONDO ,  Naotake OKADA ,  Shoichiro YAMAGUCHI ,  Keiichiro ASAI ,  Shuhei HIGASHIHARA ,  Yuichi Iwata ,  Tetsuya Ejiri ,  Akira Hamajima

    IPC分类号： F21V8/00

    摘要： A phosphor element comprises: a support substrate; an optical waveguide for propagating an excitation light through the waveguide, the optical waveguide comprising a phosphor generating a fluorescence, and the optical waveguide comprising an emission side end surface emitting the excitation light and the fluorescence, an opposing end surface opposing the emission side end surface, a bottom surface, a top surface opposing the bottom surface and a pair of side surfaces; a bottom surface side clad layer covering the bottom surface of the optical waveguide; a top surface side clad layer covering the top surface of the optical waveguide; side surface side clad layers covering the side surfaces of the optical waveguide, respectively; a top surface side reflection film covering the top surface side clad layer; side surface side reflection films covering the side surface side clad layers, respectively; and a bottom surface side reflection film provided between the support substrate and the bottom surface side clad layer.