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    • 7. 发明授权
    • Method and apparatus for inspecting surface defects
    • 检查表面缺陷的方法和装置
    • US4914378A
    • 1990-04-03
    • US235683
    • 1988-06-20
    • Makoto HayashiMasahiro OotakaAkisuke NaruseKazuo Takaku
    • Makoto HayashiMasahiro OotakaAkisuke NaruseKazuo Takaku
    • G01N27/20
    • G01N27/20
    • A method and an apparatus for detecting defects in the surface of a metal material relying upon the potential drop method. Namely, a method of precisely determining the shape of crack from a distribution of potential differences in the vicinity of crack by arranging power supplying electrodes and measuring electrodes on the surface of the metal material in the form of a matrix, and switching the electrodes that supply electric current and the electrodes that measure potential differences to measure distributions of potential differences in many directions, and an apparatus for detecting surface defects relying upon the potential drop method. In the apparatus for detecting surface defects, the arrangement of power supplying electrodes and supply currents are optimized to precisely detect the shape of crack in the surface.
    • PCT No.PCT / JP87 / 00789 Sec。 371日期:1988年6月20日 102(e)1988年6月20日PCT PCT 1987年10月16日PCT公布。 出版物WO88 / 02857 日期:1988年4月21日。一种用于根据潜在滴落法检测金属材料表面缺陷的方法和装置。 即,通过在基体的形式的金属材料的表面上配置供电电极和测量电极,从裂纹附近的电位差的分布中精确地确定裂纹的形状的方法,以及切换供给的电极 电流和测量电位差的电极,以测量多个方向上的电位差的分布,以及依靠潜在滴落法检测表面缺陷的装置。 在用于检测表面缺陷的装置中,优化供电电极和电源电流的布置以精确地检测表面中的裂纹的形状。
    • 9. 发明授权
    • Biometrics authentication method, media for individual authentication, and biometrics authentication device
    • 生物识别认证方法,个人认证介质和生物识别认证设备
    • US08423786B2
    • 2013-04-16
    • US11853225
    • 2007-09-11
    • Kazuo TakakuYasuhiko MitaNaoko SuzukiShinya IwasakiMasayuki YanoIkuo Mutou
    • Kazuo TakakuYasuhiko MitaNaoko SuzukiShinya IwasakiMasayuki YanoIkuo Mutou
    • G06F21/00
    • G07C9/00087G06F21/32G06F21/34G06F21/83
    • A biometrics authentication device which detects body characteristics, performs verification against registered biometrics data, and performs individual authentication, by which confidentiality is improved even when biometrics data is separated, distributed and stored. A biometrics information key is created from biometrics data detected by a detection device, the biometrics data is divided into a plurality of portions, and the portions are stored on different media. The biometrics information key is stored on one media, and at the time of authentication, the separated biometrics data portions are combined and a biometrics information key is created and is compared with the biometrics information key, to judge the linked relationship. Hence confidentiality of the association of the individual separated data portions can be improved even when the biometrics data is separated, distributed and stored, contributing to prevent illicit use resulting from leakage or theft of biometrics data.
    • 一种检测身体特征的生物体认证装置,对登记的生物特征数据执行验证,并且执行个体认证,即使生物特征数据被分离,分发和存储,机密性也得到改善。 生物特征信息密钥由检测装置检测的生物特征数据创建,生物统计数据被分成多个部分,并且部分存储在不同的媒体上。 将生物识别信息密钥存储在一个媒体上,并且在认证时将分离的生物统计数据部分组合起来,生成生物统计信息密钥并与生物特征信息密钥进行比较,以判断链接关系。 因此,即使分离,分发和存储生物特征数据,也可以提高各个分离的数据部分的关联的机密性,有助于防止由于生物特征数据的泄漏或盗窃而导致的非法使用。