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公开(公告)号：US09970840B2
公开(公告)日：2018-05-15
申请号：US14430258
申请日：2013-08-19
Applicant: NEC Corporation
Inventor： Shigeki Shinoda , Yasuhiro Sasaki , Masatake Takahashi , Junichiro Mataga , Soichiro Takata
CPC classification number: G01M3/2807 , F17D5/06 , G01M3/243
Abstract: Each functional configuring unit of a leak inspection device (2000) operates in the manner that follows. A vibration acquisition unit (2020) acquires a signal indicating tubing vibrations or vibrations propagated from tubing. A filtering unit (2040) extracts a signal of a predetermined frequency band from the signal acquired by the vibration acquisition unit (2020). A characteristic value extraction unit (2060) splits the signal extracted by the filtering unit (2040) into predetermined time intervals, calculates for each split signal the absolute value of each extreme value of the magnitude of the signal, performs for each split signal a statistical process with respect to the calculated plurality of absolute values, and considers values calculated by the statistical process to be characteristic values. A leak determination unit (2080) considers inspection results to indicate the presence of a leak when a determination index value stipulated using the characteristic values is greater than a predetermined threshold.
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2.发明授权公开(公告)号：US09876506B2
公开(公告)日：2018-01-23
申请号：US15321131
申请日：2015-06-24
Applicant: NEC Corporation
Inventor： Shigeki Shinoda , Shohei Kinoshita , Yasuhiro Sasaki
Abstract: To provide a measuring device wherein a measurement range corresponding to a wave shape to be measured can be set with a simple configuration. A measuring device (100) has: a measuring unit that measures changes of indexes with time, said indexes relating to an object event; a conversion unit that converts a measurement value measured by means of the measuring unit into a predetermined format within a previously set measurement range; and a control unit that controls the measurement range. The control unit changes the measurement range in the cases where a conversion value obtained by converting the measurement value by means of the conversion unit satisfies predetermined conditions in a predetermined period.
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公开(公告)号：US09851331B2
公开(公告)日：2017-12-26
申请号：US14406242
申请日：2013-01-11
Applicant: NEC CORPORATION
Inventor： Yasuhiro Sasaki , Masatake Takahashi , Shigeki Shinoda
CPC classification number: G01N29/12 , G01M3/243 , G01M7/00 , G01N29/045 , G01N29/4436 , G01N2291/0258
Abstract: Disclosed is a structure analyzing device and a structure analyzing method which can analyze a state change of a structure, which is caused before the structure is destroyed, such as a state change of degradation of the structure or the like. A structure analyzing device (10) includes a vibration detecting unit (11) which detects a vibration of a structure, and an analysis unit (12) which analyzes an output signal of the vibration detecting unit (11). The analysis unit (12) analyzes a state change of the structure by comparing a value of resonant sharpness Q, which is measured by use of the following formula (1) in a state existing when carrying out analysis, with a value of resonant sharpness Q which is measured by use of the following formula (1) in a standard state.
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公开(公告)号：US20150236610A1
公开(公告)日：2015-08-20
申请号：US14431817
申请日：2013-08-16
Applicant: NEC Corporation
Inventor： Yasuhiro Sasaki , Masatake Takahashi , Shigeki Shinoda , Junichiro Mataga
CPC classification number: H02M7/06 , G01H11/08 , G01M3/00 , G01M3/243 , G01N29/223 , G01N2291/0289
Abstract: A vibration sensor unit (100) includes a metal casing (11), a vibration sensor (12) disposed in the casing (11), a battery (15), and a control unit (13). The control unit (13) applies power supplied from the battery (15) to the casing (11) to apply charges to the casing (11), and controls an amount of power applied to the casing (11).
Abstract translation: 振动传感器单元（100）包括金属壳体（11），设置在壳体（11）中的振动传感器（12），电池（15）和控制单元（13）。 控制单元（13）将从电池（15）供应的电力施加到壳体（11）以向壳体（11）施加电荷，并且控制施加到壳体（11）的功率量。
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公开(公告)号：US09709488B2
公开(公告)日：2017-07-18
申请号：US14917725
申请日：2014-06-26
Applicant: NEC Corporation
Inventor： Shin Tominaga , Yasuhiro Sasaki , Masatake Takahashi , Junichiro Mataga
IPC: G01J3/40 , G01N21/41 , G01J3/36 , G02B5/32 , H01L31/0232 , H04N9/04 , G01J3/18 , G01J5/02 , G02B3/00 , G01J3/28
CPC classification number: G01N21/41 , G01J3/1838 , G01J3/36 , G01J5/02 , G01J2003/2813 , G01N2201/068 , G02B3/0056 , G02B3/0087 , G02B5/32 , H01L31/0232 , H04N9/045 , H04N2209/042
Abstract: A sensor unit (100) provided with a substrate (101), a plurality of light-receiving units (102) that are provided on the substrate (101) and detect light, and a diffraction grating layer (103) that is provided on the substrate (101) and the light-receiving units (102) and has at least two diffraction means for diffracting light of corresponding wavelengths and condensing the light onto the light-receiving units, wherein at least two of the diffraction means are composed from holograms formed on a first diffraction grating layer and at least a portion of the plurality of holograms formed on the first diffraction grating layer overlap at least partially with another adjacent hologram.
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Patent Agency Ranking
公开(公告)号：US20150211953A1
公开(公告)日：2015-07-30
申请号：US14430390
申请日：2013-09-06
Applicant: NEC CORPORATION
Inventor： Shigeki Shinoda , Tetsuya Yoshinari , Shohei Kinoshita , Hiromi Yamamoto , Masatake Takahashi , Yasuhiro Sasaki
IPC: G01M3/16
Abstract: A signal acquisition unit (2020) acquires a signal. From the signal acquired by the signal acquisition unit (2020), a detection signal extraction unit (2060) extracts, as a detection signal, a signal of any frequency band among a plurality of partial detection frequency bands into which the frequency band that is the subject of detection has been divided. A determination unit (2070) determines, in order, for each detection signal corresponding to each of the different partial detection frequency bands, whether the detection signal shows any leakage, and if at least a prescribed number of the detection signals are not showing any leakage, determines that leakage is not taking place.
Abstract translation: 信号获取单元（2020）获取信号。 从信号获取单元（2020）获取的信号中，检测信号提取单元（2060）将作为检测信号的频带的多个部分检测频带中的任何频带的信号提取出来， 检测对象已被划分。 确定单元（2070）按顺序确定与每个不同的部分检测频带相对应的每个检测信号，检测信号是否显示任何泄漏，并且如果至少规定数量的检测信号没有显示任何泄漏 ，确定不会发生泄漏。
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公开(公告)号：US20150177195A1
公开(公告)日：2015-06-25
申请号：US14406242
申请日：2013-01-11
Applicant: NEC CORPORATION
Inventor： Yasuhiro Sasaki , Masatake Takahashi , Shigeki Shinoda
IPC: G01N29/12
CPC classification number: G01N29/12 , G01M3/243 , G01M7/00 , G01N29/045 , G01N29/4436 , G01N2291/0258
Abstract: Disclosed is a structure analyzing device and a structure analyzing method which can analyze a state change of a structure, which is caused before the structure is destroyed, such as a state change of degradation of the structure or the like. A structure analyzing device (10) includes a vibration detecting unit (11) which detects a vibration of a structure, and an analysis unit (12) which analyzes an output signal of the vibration detecting unit (11). The analysis unit (12) analyzes a state change of the structure by comparing a value of resonant sharpness Q, which is measured by use of the following formula (1) in a state existing when carrying out analysis, with a value of resonant sharpness Q which is measured by use of the following formula (1) in a standard state.
Abstract translation: 公开了一种结构分析装置和结构分析方法，其可以分析结构被破坏之前引起的结构的状态变化，例如结构劣化的状态变化等。 一种结构分析装置（10）包括检测结构振动的振动检测单元（11）和分析振动检测单元（11）的输出信号的分析单元（12）。 分析单元（12）通过将在进行分析时存在的状态下使用以下公式（1）测量的谐振锐度Q的值与共振锐度Q的值进行比较来分析结构的状态变化 其通过使用下列公式（1）在标准状态下测量。
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公开(公告)号：US09804053B2
公开(公告)日：2017-10-31
申请号：US14431809
申请日：2013-09-13
Applicant: NEC Corporation
Inventor： Masatake Takahashi , Mizuho Tomiyama , Yasuhiro Sasaki
CPC classification number: G01M5/0025 , F17D5/06 , G01M3/00 , G01M3/243 , G01M5/0033 , G01M7/02 , G01N29/04 , G01N29/28 , G01N29/341
Abstract: The present invention provides a defect analysis device including: an excitation unit (107) that imparts vibrations of a plurality of frequencies to a fluid (110) flowing through a pipe (108); a first detector (106) that, when the excitation part (107) is imparting vibrations, detects vibrations emanating from the pipe (108); and a signal processing unit (101) that extracts a feature quantity from a vibration waveform acquired by the first detector (106), and uses the extracted feature quantity to estimate the extent of a defect formed in the pipe (108).
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公开(公告)号：US09739684B2
公开(公告)日：2017-08-22
申请号：US14430390
申请日：2013-09-06
Applicant: NEC Corporation
Inventor： Shigeki Shinoda , Tetsuya Yoshinari , Shohei Kinoshita , Hiromi Yamamoto , Masatake Takahashi , Yasuhiro Sasaki
Abstract: A signal acquisition unit (2020) acquires a signal. From the signal acquired by the signal acquisition unit (2020), a detection signal extraction unit (2060) extracts, as a detection signal, a signal of any frequency band among a plurality of partial detection frequency bands into which the frequency band that is the subject of detection has been divided. A determination unit (2070) determines, in order, for each detection signal corresponding to each of the different partial detection frequency bands, whether the detection signal shows any leakage, and if at least a prescribed number of the detection signals are not showing any leakage, determines that leakage is not taking place.
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10.发明公开公开(公告)号：US20230327470A1
公开(公告)日：2023-10-12
申请号：US18128712
申请日：2023-03-30
Applicant: NEC Corporation
Inventor： Hiromi SUZUKI , Yasuhiro Sasaki , Hideyuki Ishiuji , Satoshi Tanaka , Miho Kubota , Yoshihiko Yonehara , Yutaka Okano , Sayaka Ishimoto , Noriyuki Nakayama , Keiko Yamaguchi , Yusuke Shinozaki , Shota Ito , Takashi Kuroha , Asuka Matsuba , Megumi Eto , Yuuki Tanaka , Yoshikazu Kawashima , Tsutomu Oono , Nariyoshi Kotake , Kuniyoshi Nakada , Katsuhiko Ishida , Koji Kitahara , Akira Miyahara
CPC classification number: H02J7/00714 , H02J7/00032 , H02J7/0014 , B60L53/67
Abstract: A charger control apparatus includes a total current acquisition unit and a setting unit to control a plurality of chargers connected in parallel with each other and supplied with a current from a common wiring line. An upper limit value of a current flowing through the wiring line is described as a first upper limit value. The total current acquisition unit acquires a total value of a current flowing through the plurality of chargers. The setting unit sets, for each of the plurality of chargers, a second upper limit value being an upper limit value of a current flowing through the charger by using the first upper limit value. When a difference between the total value and the first upper limit value satisfies a reference, the setting unit updates the second upper limit value for each of the plurality of chargers by distributing the difference according to a first rule.
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