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    • 22. 发明授权
    • Process for producing (meth) acrylic acid
    • (甲基)丙烯酸的制造方法
    • US08664437B2
    • 2014-03-04
    • US13377657
    • 2010-06-24
    • Satoshi Nakagawa
    • Satoshi Nakagawa
    • C07C51/42
    • C07C51/43C07C57/04
    • A process for producing (meth)acrylic acid, comprising the step of repeating a crystallization operation “n” times (providing “n” is an integer 2 or more) to produce purified (meth)acrylic acid from crude (meth)acrylic acid, wherein a (meth)acrylic acid solution is crystallized and the crystallized (meth)acrylic acid is melted to obtain a (meth)acrylic acid melt in the crystallization operation; wherein a constant amount Ak of the (meth)acrylic acid solution is subjected to the kth crystallization operation (providing “k” is an integer 1 to n−1), and the (meth)acrylic acid melt obtained by the kth crystallization operation is utilized as the (meth)acrylic acid solution for the k+1th crystallization operation without being discharged from a crystallizer or is transferred from the crystallizer to a k+1th storage tank for storing the (meth)acrylic acid solution to be used in the k+1th crystallization operation depending on the stored amount of the k+1th storage tank.
    • 一种制备(甲基)丙烯酸的方法,包括重复结晶操作“n”次(提供“n”为2以上的整数)以从粗(甲基)丙烯酸制备纯化的(甲基)丙烯酸的步骤, 其中(甲基)丙烯酸溶液结晶化,结晶化(甲基)丙烯酸熔融,得到结晶操作中的(甲基)丙烯酸熔体; 对(甲基)丙烯酸溶液的常数Ak进行第k次结晶操作(提供“k”为1〜n-1的整数),通过第k次结晶操作获得的(甲基)丙烯酸熔体为 用作第k + 1次结晶操作的(甲基)丙烯酸溶液,而不从结晶器中排出,或者从结晶器转移到第k + 1个储罐中,用于储存用于k的(甲基)丙烯酸溶液 取决于第k + 1个储罐的储存量的第1次结晶操作。
    • 25. 发明申请
    • METHOD FOR CRYSTALLIZING (METH)ACRYLIC ACID AND METHOD FOR REGULATING CONTENT OF POLYMERIZATION INHIBITOR IN PRODUCT (METH)ACRYLIC ACID
    • 用于结晶(甲基)丙烯酸的方法和用于调节产物(甲基)丙烯酸中聚合抑制剂含量的方法
    • US20120071620A1
    • 2012-03-22
    • US13322633
    • 2010-05-27
    • Kazuhiko SakamotoKoji UenoYoshitake IshiiHarunori HiraoSatoshi Nakagawa
    • Kazuhiko SakamotoKoji UenoYoshitake IshiiHarunori HiraoSatoshi Nakagawa
    • C08F120/06C07C51/50
    • C07C51/43C07C57/04
    • PROBLEMThere is provided a melting method of (meth)acrylic acid crystal which is capable of providing a higher quality of (meth)acrylic acid without carrying out an additional purification treatment to (meth)acrylic acid obtained by a crystallization operation accompanied by melting of (meth)acrylic acid. In addition, there is provided a simple method for adjusting a content of polymerization inhibitor in a product (meth)acrylic acid.SOLUTIONIn the crystallization method melting (meth)acrylic acid crystal while wetting with the crystalline molten liquid, a polymerization inhibitor is added to a molten liquid melted after initiation of melting, and all of crystal is melted while circulating and feeding the molten liquid containing said polymerization inhibitor to the crystal. In addition, a content of polymerization inhibitor in product (meth)acrylic acid is adjusted by adding a predetermined amount of polymerization inhibitor corresponding to a product specification to the molten liquid melted after initiation of melting.
    • 问题提供了(甲基)丙烯酸晶体的熔融方法,其能够提供更高质量的(甲基)丙烯酸,而不对通过伴随熔化的结晶操作获得的(甲基)丙烯酸进行额外的纯化处理 (甲基)丙烯酸。 此外,提供了调节产品(甲基)丙烯酸中阻聚剂含量的简单方法。 解决方案在熔融(甲基)丙烯酸晶体的结晶方法中,与结晶熔融液体一起润湿的同时,在熔融开始后熔化的熔融液中加入聚合抑制剂,并且在循环并将含有 阻聚剂结晶。 此外,通过向熔融开始熔融的熔融液中加入与产品规格相对应的规定量的聚合抑制剂来调节产品(甲基)丙烯酸中的聚合抑制剂的含量。
    • 28. 发明申请
    • INFORMATION RELAY APPARATUS, CONTROL METHOD AND INFORMATION PROCESSING SYSTEM
    • 信息中继装置,控制方法和信息处理系统
    • US20080310412A1
    • 2008-12-18
    • US12197729
    • 2008-08-25
    • Hiroyuki WADASatoshi Nakagawa
    • Hiroyuki WADASatoshi Nakagawa
    • H04L12/56
    • G06F15/173H04L65/4076H04L65/605H04L65/80
    • In a multi-processor system, an exit control circuit unit 330 of a crossbar-network module 300 to which a plurality of nodes 200 are connected is provided with a staying-time monitoring circuit 410 for issuing a special BC packet 530 for all of the exit control circuits 330 when the staying-time of a PP packet 510 in a PP buffer 331 exceeds a predetermined value; a special BC packet detection circuit 420 for detecting the arrival of the special BC packet 530; and a mode switching unit 400 for performing switching, when the special BC packet 530 arrives, from a BC prioritized mode M1 for transmitting the BC packet 520 in a BC buffer 332 prior to the PP packet 510 in the PP buffer 331, to a PP prioritized mode M2 that gives priority to the PP packet 510 staying in the PP buffer 331 over the BC packet 520.
    • 在多处理器系统中,连接有多个节点200的交叉网络模块300的出口控制电路单元330设置有停留时间监视电路410,用于发出用于所有的节点200的专用BC分组530 当PP缓冲器331中的PP包510的停留时间超过预定值时,退出控制电路330; 用于检测特殊BC分组530的到达的专用BC分组检测电路420; 以及模式切换单元400,用于当专用BC分组530到达时,从用于在PP缓冲器331中的PP分组510之前的BC缓冲器332中发送BC分组520的BC优先模式M1到PP 优先级模式M2优先考虑通过BC分组520停留在PP缓冲器331中的PP分组510。
    • 29. 发明授权
    • Method of reconstructing a secret, shared secret reconstruction apparatus, and secret reconstruction system
    • 重建秘密,共享秘密重建装置和秘密重建系统的方法
    • US07421080B2
    • 2008-09-02
    • US10798578
    • 2004-03-12
    • Yasuko MatsumuraSatoshi NakagawaKohei Endo
    • Yasuko MatsumuraSatoshi NakagawaKohei Endo
    • H04L9/00
    • H04L9/085
    • Secret information is shared by a group of members by giving each member a first share of the information. To reconstruct the secret information, a subgroup consisting of some or all of the members generate second shares from their first shares, and distribute the second shares to the other members of the subgroup. Each member of the subgroup performs an operation on the second shares it receives and one second share it generated itself to obtain an intermediate result. The intermediate results are transmitted to one or more members of the subgroup, or to a central facility, where the original secret information is obtained from a further operation performed on the intermediate results. The original secret information can thereby be obtained without compromising the secrecy of the first shares, and without forcing the members to reveal their identities.
    • 秘密信息由一组成员共享,为每个成员提供第一份信息。 为了重建秘密信息,由一些或全部成员组成的子群体从其第一股份产生第二股份,并将第二股份分配给该子群体的其他成员。 子组的每个成员对其接收到的第二个共享进行一个操作,并且自己生成一个第二个共享以获得中间的结果。 中间结果被发送到子组的一个或多个成员,或传送到中央设备,其中从对中间结果执行的另一操作获得原始秘密信息。 从而可以获得原始的秘密信息而不损害第一股份的秘密,而不强迫成员揭示其身份。