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    • 1. 发明申请
    • X-ray high voltage device
    • X射线高压装置
    • US20060274887A1
    • 2006-12-07
    • US10557899
    • 2004-05-24
    • Kazuhiko SakamotoHiroshi Takano
    • Kazuhiko SakamotoHiroshi Takano
    • H05G1/12
    • H05G1/12
    • A semiconductor switch 12 connected in series with a smoothing capacitor 12 is constituted by connecting in parallel a diode 13D which permits to flow current regenerated from energy of electric charges stored in a high voltage capacitor 17 to a primary side of a high voltage transformer 15 for the smoothing capacitor 12 and switching means 13S which interrupts an output from the smoothing capacitor 12, and after turning off the switching means 13S, through alternative on and off control of switching means 161S˜164S the energy of electric charges stored in the high voltage capacitor 17 is regenerated to the smoothing capacitor 12 by making use of parasitic leakage inductance 15L. As a result, an X-ray high voltage device is provided which permits to drop a wave tail of a tube voltage in a high speed without complexing the structure of the high voltage part thereof.
    • 与平滑电容器12串联连接的半导体开关12通过并联连接二极管13构成,该二极管13D允许将存储在高压电容器17中的电荷的能量再生的电流流向高压变压器15的初级侧 对于平滑电容器12和中断来自平滑电容器12的输出的切换装置13S,以及在切换装置13S之后,通过开关装置161S〜164S的可选择的接通和关断控制,存储电荷的能量 通过利用寄生漏电感15L将高电压电容器17再生成平滑电容器12.结果,提供了一种X射线高压装置,其允许将管电压的波尾下降到高 速度,而不会使其高压部分的结构复杂化。
    • 2. 发明授权
    • X-ray high voltage device
    • X射线高压装置
    • US07327827B2
    • 2008-02-05
    • US10557899
    • 2004-05-24
    • Kazuhiko SakamotoHiroshi Takano
    • Kazuhiko SakamotoHiroshi Takano
    • H05G1/10
    • H05G1/12
    • A semiconductor switch 12 connected in series with a smoothing capacitor 12 is constituted by connecting in parallel a diode 13D which permits to flow current regenerated from energy of electric charges stored in a high voltage capacitor 17 to a primary side of a high voltage transformer 15 for the smoothing capacitor 12 and switching means 13S which interrupts an output from the smoothing capacitor 12, and after turning off the switching means 13S, through alternative on and off control of switching means 161S˜164S the energy of electric charges stored in the high voltage capacitor 17 is regenerated to the smoothing capacitor 12 by making use of parasitic leakage inductance 15L. As a result, an X-ray high voltage device is provided which permits to drop a wave tail of a tube voltage in a high speed without complexing the structure of the high voltage part thereof.
    • 与平滑电容器12串联连接的半导体开关12通过并联连接二极管13构成,该二极管13D允许将存储在高压电容器17中的电荷的能量再生的电流流向高压变压器15的初级侧 对于平滑电容器12和中断来自平滑电容器12的输出的切换装置13S,以及在切换装置13S之后,通过开关装置161S〜164S的可选择的接通和关断控制,存储电荷的能量 通过利用寄生漏电感15L将高电压电容器17再生成平滑电容器12.结果,提供了一种X射线高压装置,其允许将管电压的波尾下降到高 速度,而不会使其高压部分的结构复杂化。
    • 4. 发明授权
    • Method for producing (meth)acrylic acid
    • (甲基)丙烯酸的制造方法
    • US08278481B2
    • 2012-10-02
    • US12451701
    • 2008-05-15
    • Kazuhiko SakamotoNaoki SerataToyofumi Sakai
    • Kazuhiko SakamotoNaoki SerataToyofumi Sakai
    • C07C57/02
    • C07C51/252C07C51/412C07C51/50C07C57/04C07C53/10
    • The present invention provides a method for effectively preventing the precipitation related to manganese acetate in the pipe for sending a polymerization inhibitor and the like, and the polymerization of (meth)acrylic acid. A first method of the present invention for producing (meth)acrylic acid, characterized in comprising steps of: producing a (meth)acrylic acid-containing gas by catalytic vapor phase oxidation reaction; and obtaining a (meth)acrylic acid-containing fluid by providing the (meth)acrylic acid-containing gas into a condensation column or an absorption column; wherein manganese acetate is used as a polymerization inhibitor; manganese acetate is dissolved into a (meth)acrylic acid aqueous solution containing not more than 10% by mass of (meth)acrylic acid, and the like, to obtain a manganese acetate aqueous solution; and the manganese acetate aqueous solution is provided into the condensation column or the absorption column.
    • 本发明提供了一种用于有效地防止用于发送阻聚剂等的管中的醋酸锰沉淀和(甲基)丙烯酸聚合的方法。 本发明的制备(甲基)丙烯酸的第一种方法,其特征在于包括以下步骤:通过催化气相氧化反应制备(甲基)丙烯酸的气体; 并通过将(甲基)丙烯酸的气体提供到缩合塔或吸收塔中来获得含(甲基)丙烯酸的流体; 其中使用乙酸锰作为阻聚剂; 将乙酸锰溶解于含有不超过10质量%的(甲基)丙烯酸等的(甲基)丙烯酸水溶液中,得到乙酸锰水溶液; 并且将乙酸锰水溶液提供到缩合塔或吸收塔中。