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    Sensor module
    2.
    发明授权
    Sensor module 有权

    公开(公告)号：US11474081B2

    公开(公告)日：2022-10-18

    申请号：US16556286

    申请日：2019-08-30

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Yongfang Li ,  Takahiro Omori ,  Takashi Usui ,  Osamu Nishimura ,  Kazuo Watabe

    IPC分类号： G01N29/42 ,  G01N29/12 ,  G01H11/08 ,  G01M13/028

    摘要： According to one embodiment, a sensor module includes a sensor and a diagnosis circuit. The sensor includes piezoelectric transducers and switches. The piezoelectric transducers have different resonance frequencies. The switches are provided to correspond to the piezoelectric transducers, respectively. Each of the switches outputs an output signal corresponding to a voltage generated by an inverse piezoelectric effect of a corresponding piezoelectric transducer of the piezoelectric transducers. The diagnosis circuit diagnoses, based on a difference in pattern of the output signal, whether vibration has newly occurred in the sensor, and switch an output destination of the output signal of the sensor according to a result of the diagnosis.

    Detection device, detection system, detection method, and information processing device
    3.
    发明授权
    Detection device, detection system, detection method, and information processing device 有权

    公开(公告)号：US11385203B2

    公开(公告)日：2022-07-12

    申请号：US16737004

    申请日：2020-01-08

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Keiichiro Someda ,  Takashi Usui ,  Kazuo Watabe ,  Shuichi Hirano

    IPC分类号： G01N29/24 ,  G01N29/44 ,  G01N29/22 ,  G01N29/14

    摘要： According to one embodiment, a detection system includes a plurality of sensors, a locator, a first counter, and a determiner. The plurality of sensors that detect an elastic wave, the sensors being disposed separately from each other in a direction in which the welded portion extends and each being installed on the first member or the second member. The locator that locates a generation source position of the elastic wave on the basis of outputs of the plurality of sensors. The first counter that accumulates information of generation source positions of a plurality of elastic waves located by the locator to calculate a distribution of generation source positions of the plurality of elastic waves over a predetermined time. The determiner that determines the position of the crack on the basis of the distribution calculated by the first counter.

    Detection device, detection system, and detection method
    5.
    发明授权
    Detection device, detection system, and detection method 有权

    公开(公告)号：US10365250B2

    公开(公告)日：2019-07-30

    申请号：US15264206

    申请日：2016-09-13

    申请人： KABUSHIKI KAISHA TOSHIBA

    发明人： Takashi Usui ,  Kazuo Watabe ,  Takahiro Omori ,  Hidefumi Takamine ,  Akihiro Kasahara

    IPC分类号： G01N29/04 ,  G01N29/07 ,  G01N29/14 ,  G01N29/22

    摘要： According to an embodiment, a detection device is used for a structure. The structure includes: a first member; a second member provided on an opposite side of the first member; and a welded portion that is provided along an end of the second member facing the first member and fixes the first member and the second member. The detection device include: a plurality of acoustic emission sensors that are disposed so as to be spaced apart from each other in a direction in which the welded portion extends and are configured to detect an elastic wave transmitted to the second member, each acoustic emission sensor being attached to the second member; and an outputter that outputs information, obtained from outputs of the plurality of the acoustic emission sensors.

    OPTICAL STORAGE MEDIUM, INFORMATION RECORDING APPARATUS, AND INFORMATION RECORDING METHOD
    7.
    发明申请
    OPTICAL STORAGE MEDIUM, INFORMATION RECORDING APPARATUS, AND INFORMATION RECORDING METHOD 审中-公开
    光存储介质，信息记录装置和信息记录方法

    公开(公告)号：US20140064052A1

    公开(公告)日：2014-03-06

    申请号：US14012251

    申请日：2013-08-28

    申请人： Kabushiki Kaisha Toshiba

    发明人： Kazuo Watabe ,  Hideaki Okano ,  Akihito Ogawa

    IPC分类号： G11B7/24035

    CPC分类号： G11B7/24035 ,  G11B7/24038 ,  G11B7/2405 ,  Y10T428/2495 ,  Y10T428/24975

    摘要： According to one embodiment, an optical storage medium includes a guide layer, a recording layer group, and a guide layer-side intermediate layer. The recording layer group comprises a plurality of recording layers and a plurality of intermediate layers arranged between the plurality of recording layers. The guide layer-side intermediate layer is arranged between the guide layer and a first recording layer closest to the guide layer out of the plurality of recording layers. A thickness T1 of the guide layer-side intermediate layer does not match a sum S1 of thicknesses of arbitrary continuous intermediate layers comprised in the recording layer group.

    摘要翻译： 根据一个实施例，光学存储介质包括引导层，记录层组和引导层侧中间层。 记录层组包括多个记录层和布置在多个记录层之间的多个中间层。 引导层侧中间层布置在引导层和最靠近多个记录层中的引导层的第一记录层之间。 引导层侧中间层的厚度T1与包含在记录层组中的任意连续中间层的厚度的和S1不一致。

    Structure evaluation system, structure evaluation apparatus, and structure evaluation method
    8.
    发明授权
    Structure evaluation system, structure evaluation apparatus, and structure evaluation method 有权

    公开(公告)号：US12104986B2

    公开(公告)日：2024-10-01

    申请号：US17653291

    申请日：2022-03-03

    申请人： Kabushiki Kaisha Toshiba

    发明人： Takashi Usui ,  Hidefumi Takamine ,  Yuki Ueda ,  Keisuke Ueno ,  Yousuke Hisakuni ,  Kazuo Watabe

    IPC分类号： G01M7/08

    CPC分类号： G01M7/08

    摘要： According to one embodiment, a structure evaluation system includes at least three or more sensors, a position locator, and an evaluator. The three or more sensors are arranged on surfaces different from a surface to which an impact is applied with respect to a structure at different intervals in a first direction of the structure and a second direction orthogonal to the first direction and detects elastic waves generated from the structure. The position locator locates a position of a source in which the elastic waves are generated on the basis of the elastic waves detected by each of the three or more sensors. The evaluator evaluates a deterioration state of the structure on the basis of information based on a position location process of the position locator and information indicating a position where the impact is applied.

    Structure evaluation system and structure evaluation method
    9.
    发明授权
    Structure evaluation system and structure evaluation method 有权

    公开(公告)号：US11639880B2

    公开(公告)日：2023-05-02

    申请号：US17500335

    申请日：2021-10-13

    申请人： Kabushiki Kaisha Toshiba ,  Kyoto University

    发明人： Tomoki Shiotani ,  Katsufumi Hashimoto ,  Hidefumi Takamine ,  Kazuo Watabe

    IPC分类号： G01M5/00 ,  G01N29/44 ,  G01N29/14

    摘要： According to one embodiment, a structure evaluation system according to an embodiment includes a plurality of sensors, a position locator, and an evaluator. The plurality of sensors detect elastic waves. The position locator locates positions of elastic wave sources by using the elastic waves among the plurality of elastic waves respectively detected by the plurality of sensors having an amplitude exceeding a threshold value determined according to positions of the sources of the plurality of elastic waves and the positions of the plurality of disposed sensors. The evaluator evaluates a deteriorated state of the structure on the basis of results of the position locating of the elastic wave sources which is performed by the position locator.