Encryption apparatus, decryption apparatus, key generation apparatus, program, and method
    61.
    发明申请
    Encryption apparatus, decryption apparatus, key generation apparatus, program, and method 失效
    加密装置,解密装置,密钥生成装置,程序和方法

    公开(公告)号:US20050271203A1

    公开(公告)日:2005-12-08

    申请号:US11128283

    申请日:2005-05-13

    CPC classification number: H04L9/3093 H04L9/3026 H04L2209/08

    Abstract: According to each embodiment of this invention, an encryption apparatus, decryption apparatus, and key generation apparatus based on a public-key cryptographic scheme whose security is based on the divisor finding problem of obtaining a divisor on an algebraic surface which is a difficult problem that has not been solved by contemporary mathematics are realized by an arrangement using, as a private key, a section D of algebraic curves (divisors) on a fibration X(x, y, t) of an algebraic surface X. This makes it possible to create a public-key cryptographic scheme which can ensure security even in the advent of a quantum computer, can be securely realized by even current computers, and can be realized in a low-power environment.

    Abstract translation: 根据本发明的每个实施例,一种基于公钥密码方案的加密装置,解密装置和密钥生成装置,其安全性基于获得代数表面上的除数的除数查找问题,该问题是一个难题, 当代数学没有得到解决,是通过使用代数曲线(除数)D代表代数曲线X(x,y,t)作为私钥的方式来实现的。这使得可以 创建公钥加密方案,即使在量子计算机出现的情况下也能保证安全性,即使是目前的计算机也能安全地实现,并且可以在低功耗的环境中实现。

    Branched olefinic macromonomer, olefin graft copolymer, and olefin resin composition
    62.
    发明授权
    Branched olefinic macromonomer, olefin graft copolymer, and olefin resin composition 失效
    支链烯烃大分子单体,烯烃接枝共聚物和烯烃树脂组合物

    公开(公告)号:US06897261B1

    公开(公告)日:2005-05-24

    申请号:US10019293

    申请日:2000-07-18

    CPC classification number: C08F290/04 C08F290/042 C08F290/14 C08F290/141

    Abstract: The invention relates to olefin branched macromonomers, olefin graft copolymers and olefin resin compositions having the advantage of good compatibility with polyolefin resins and good moldability and workability. The olefin branched macromonomer satisfies the following (a) and (b): (a) its weight-average molecular weight (Mw) measured through gel permeation chromatography (GPC) falls between 400 and 200000; (b) its vinyl content is at least 70 mol % of all the unsaturated groups in the macromonomer.

    Abstract translation: 本发明涉及烯烃支链大分子单体,烯烃接枝共聚物和烯烃树脂组合物,其具有与聚烯烃树脂的良好相容性和良好的成型性和可加工性。 烯烃支化大分子单体满足以下(a)和(b):(a)通过凝胶渗透色谱法(GPC)测定的重均分子量(Mw)为400〜200000; (b)其乙烯基含量为大分子单体中所有不饱和基团的至少70摩尔%。

    Ceramic composite material and its manufacturing method, and heat resistant member using thereof
    63.
    发明授权
    Ceramic composite material and its manufacturing method, and heat resistant member using thereof 失效
    陶瓷复合材料及其制造方法,以及使用其的耐热构件

    公开(公告)号:US06194083B1

    公开(公告)日:2001-02-27

    申请号:US09122636

    申请日:1998-07-27

    Abstract: A ceramic composite material comprises a ceramic material constituting a matrix, and dispersion particles disposed in the matrix in a dispersing manner. A specific shape of a ceramic composite material is, for instance, a sinter or a thermally sprayed layer. The dispersion particles are consisting of a composite oxide including at least one kind of a first metallic element selected from alkaline earth metals such as Mg and Ca, and at least one kind of a second metallic element selected from W, Ti, Ta, Mo, Nb, V, B, Te, Ge and Si, for instance, are composite oxide particles precipitated by reacting a compound containing a first metallic element and a compound including a second metallic element through heat treatment. The precipitated particles consisting of such a composite oxide can be dispersed as planar particles or acicular particles in the ceramic layer to which, for instance, thermal spraying is applied. The dispersion particles suppress deterioration of strength or toughness of the oxide based ceramic material under high temperature atmosphere.

    Abstract translation: 陶瓷复合材料包括构成基体的陶瓷材料和以分散方式设置在基质中的分散粒子。 陶瓷复合材料的特定形状是例如烧结体或热喷涂层。 分散粒子由包含选自碱土类金属如Mg和Ca中的至少一种第一金属元素和选自W,Ti,Ta,Mo中的至少一种第二金属元素的复合氧化物组成, 例如,Nb,V,B,Te,Ge和Si是通过热处理使包含第一金属元素的化合物和包括第二金属元素的化合物反应而沉淀的复合氧化物颗粒。 由这种复合氧化物构成的沉淀粒子可以作为平面粒子或针状粒子分散在例如进行热喷涂的陶瓷层中。 分散颗粒抑制氧化物基陶瓷材料在高温气氛下的强度或韧性的劣化。

    Method and apparatus for evaluating quality of resistance welds
    64.
    发明授权
    Method and apparatus for evaluating quality of resistance welds 失效
    电阻焊质量的方法和装置

    公开(公告)号:US6140825A

    公开(公告)日:2000-10-31

    申请号:US75953

    申请日:1998-05-12

    CPC classification number: B23K11/256 B23K31/125

    Abstract: A method for evaluating quality of a resistance weld is provided, in which a nugget generation state during a welding process is evaluated by observable numerical values based on physical phenomena, and which can afford a wide application range in welding material as well as a capability of accurate knowledge as to the nugget generation state of the weld. Based on that a specific resistance value of a metal material to be welded has a temperature dependency in a conduction state of AC or current-pulsated welding current, a rate of change of inter-chip dynamic resistance instantaneous value during a current changing period is determined, a changing state of the dynamic resistance instantaneous value is further calculated, and a heat-generating state of a weld zone, i.e., a nugget formation state is estimated. Thus, a quality evaluation of a weld is performed accurately.

    Abstract translation: 提供一种用于评价电阻焊接质量的方法,其中通过基于物理现象的可观察数值评价焊接过程中的熔核发生状态,并且其可以在焊接材料中具有广泛的应用范围以及能力 准确的了解熔核生产状态的焊缝。 基于待焊接的金属材料的电阻值在AC或电流脉动焊接电流的导通状态下具有温度依赖性,确定电流变化时段期间的芯片间电阻瞬时值的变化率 进一步计算动态电阻瞬时值的变化状态,并且估计焊接区域的发热状态,即熔核形成状态。 因此,准确地进行焊接的质量评价。

    Method of manufacturing ceramic sintered bodies
    65.
    发明授权
    Method of manufacturing ceramic sintered bodies 失效
    制造陶瓷烧结体的方法

    公开(公告)号:US6093366A

    公开(公告)日:2000-07-25

    申请号:US186143

    申请日:1998-11-05

    CPC classification number: C04B35/16

    Abstract: The present invention provides a ceramic sintered body excellent in oxidation resistance under high temperatures and markedly superior to the conventional ceramic sintered body in the mechanical strength over a wide temperature range of between room temperature and 1,500.degree. C. The ceramic sintered body of the present invention comprises at least one ceramic crystal grain selected from the group consisting essentially of a monosilicate represented by the general formula RE.sub.2 SiO.sub.5, where RE denotes a IIIa group element including yttrium, and a disilicate represented by the general formula RE.sub.2 Si.sub.2 O.sub.7, where RE denotes a IIIa group element including yttrium, and at least one additional element selected from the group consisting of Al, Cr, Hf, Nb, Zr, Ti, V, Ta, Ca and Mg which is segregated in the boundaries of the ceramic crystal grains in an amount of 0.1 to 15% by weight of the sintered body in terms of the oxide thereof.

    Abstract translation: 本发明提供一种陶瓷烧结体,其在高温下的耐氧化性优异,并且在常温陶瓷烧结体的室温〜1500℃的宽温度范围内的机械强度显着优于常规陶瓷烧结体。本发明的陶瓷烧结体 包括至少一种选自基本上由通式RE 2 SiO 5表示的单硅酸盐的陶瓷晶粒,其中RE表示包括钇的IIIa族元素,和由通式RE 2 Si 2 O 7表示的二硅酸盐,其中RE表示IIIa族元素 包括钇,以及选自Al,Cr,Hf,Nb,Zr,Ti,V,Ta,Ca和Mg中的至少一种附加元素,其在陶瓷晶粒的边界中以0.1的量分离 至15重量%的烧结体。

    Skin movement detector
    66.
    发明授权
    Skin movement detector 失效
    皮肤运动检测器

    公开(公告)号:US5247944A

    公开(公告)日:1993-09-28

    申请号:US939047

    申请日:1992-09-03

    CPC classification number: A61B5/441 A61B5/103 A61B2562/0247

    Abstract: A skin movement detector is disclosed which comprises a case having an opening; a pressure-sensitive element having a diaphragm portion and disposed within the case; and a contact probe, made of a soft member, for contacting a skin surface, the contact probe being attached to the case so as to cover the opening and having a projecting portion contacting the diaphragm portion; the contact probe including a plate portion adapted to contact the skin, a base portion, and a leg portion connecting the plate portion and the base portion. The skin movement detector may also include regulating means positioned at an outer periphery of the projecting portion for contacting the diaphragm support portion peripherally when a force exceeding a predetermined value is applied to the contact probe. The skin movement detector thus provides high sensitivity in all directions across the skin and prevents excessive displacement of the diaphragm.

    Abstract translation: 公开了一种皮肤运动检测器,其包括具有开口的壳体; 具有隔膜部分并设置在壳体内的压敏元件; 以及由软构件制成的用于接触皮肤表面的接触探针,所述接触探针附接到所述壳体以覆盖所述开口并且具有接触所述隔膜部分的突出部分; 接触探针包括适于接触皮肤的板部分,基部部分和连接板部分和基部部分的腿部分。 皮肤运动检测器还可以包括定位在突出部分的外周边处的调节装置,用于当超过预定值的力被施加到接触探针时,在外围接触隔膜支撑部分。 因此,皮肤移动检测器在穿过皮肤的所有方向上提供高灵敏度并防止隔膜的过度位移。

    Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatus
    70.
    发明授权
    Digital signature generation apparatus, digital signature verification apparatus, and key generation apparatus 失效
    数字签名生成装置,数字签名验证装置以及密钥生成装置

    公开(公告)号:US08458471B2

    公开(公告)日:2013-06-04

    申请号:US13241374

    申请日:2011-09-23

    Abstract: A digital signature generation apparatus includes memory to store finite field Fq and section D(ux(s, t), uy(s, t), s, t) as secret key, section being one of surfaces of three-dimensional manifold A(x, y, s, t) which is expressed by x-coordinate, y-coordinate, parameter s, and parameter t and is defined on finite field Fq, x-coordinate and y-coordinate of section being expressed by functions of parameter s and parameter t, calculates hash value of message m, generates hash value polynomial by embedding hash value in 1-variable polynomial h(t) defined on finite field Fq, and generates digital signature Ds(Ux(t), Uy(t), t) which is curve on section, the x-coordinate and y-coordinate of curve being expressed by functions of parameter t, by substituting hash value polynomial in parameter s of section.

    Abstract translation: 数字签名生成装置包括存储器,用于存储有限域Fq和区段D(ux(s,t),uy(s,t),s,t)作为秘密密钥,区段是三维歧管A的表面之一 x,y,s,t),由x坐标,y坐标,参数s和参数t表示,并定义在有限域Fq,x坐标和y坐标的区间由参数s的函数表示 和参数t计算消息m的哈希值,通过在有限域Fq上定义的1变量多项式h(t)中嵌入哈希值来生成哈希值多项式,生成数字签名Ds(Ux(t),Uy(t) t),曲线的x坐标和y坐标由参数t的函数表示,通过在段的参数s中代入散列值多项式。

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