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    • 8. 发明授权
    • Process for producing sulfur-containing amino acid or salt thereof
    • 含硫氨基酸或其盐的制造方法
    • US08779190B2
    • 2014-07-15
    • US13636238
    • 2011-03-24
    • Kazuyasu TaniTaro HiroseKoji Hagiya
    • Kazuyasu TaniTaro HiroseKoji Hagiya
    • C07C319/20
    • C07C319/20C07C323/58
    • According to the present invention, a new process for producing a sulfur-containing amino acid without using of hydrogen cyanide or sodium azide which requires careful handling as a raw material can be provided. The present invention relates to a process for producing a sulfur-containing amino acid represented by the following formula (1) or a salt thereof: wherein R1 is an alkyl group having 1 to 12 carbon atoms and optionally having substituents or a cycloalkyl group having 3 to 12 carbon atoms and optionally having substituents, and n is an integral number of from 1 to 4, comprising a step of reacting a sulfur-containing 2-ketocarboxylic acid represented by the formula (2) or a salt thereof: wherein R1 and n mean the same as defined above, with ammonia and hydrogen in the presence of a transition metal catalyst.
    • 根据本发明,可以提供一种不使用需要小心处理作为原料的氰化氢或叠氮化钠来生产含硫氨基酸的新方法。 本发明涉及一种由下式(1)表示的含硫氨基酸或其盐的制备方法:其中R1是具有1至12个碳原子并且任选具有取代基的烷基或具有3个 至12个碳原子,并且任选地具有取代基,n为1至4的整数,包括使式(2)表示的含硫的2-酮羧酸或其盐:其中R1和n 表示与上述相同,在过渡金属催化剂存在下用氨和氢气。
    • 9. 发明申请
    • WATERPROOF STRUCTURE, ELECTRONIC DEVICE, AND WATERPROOFING METHOD
    • 防水结构,电子设备和防水方法
    • US20140078655A1
    • 2014-03-20
    • US14114871
    • 2012-04-25
    • Taro Hirose
    • Taro Hirose
    • H05K5/06
    • H05K5/061H01M2/1066H01M2220/30H05K5/06
    • A waterproof structure includes a package having an opening; a lid part which is slidable between a first position that makes the opening be open and a second position that is located closer to the innermost of the opening than the first position and closes the opening; and an elastic member provided on a surface of the lid part, said surface facing an inner side of the opening, in a manner such that the elastic member is incapable of contacting the package when the lid part is positioned at the first position, and that the elastic member is pressed into the opening when the lid part is positioned at the second position. It is possible to prevent insufficient pressing of the elastic member into the opening, and thereby the relevant waterproof performance can be improved
    • 防水结构包括具有开口的包装; 盖部,其在使开口打开的第一位置与位于比第一位置更靠近开口最内侧的第二位置之间滑动并封闭开口; 以及弹性构件,其设置在所述盖部的表面上,所述表面面向所述开口的内侧,使得当所述盖部位于所述第一位置时所述弹性构件不能接触所述包装,并且所述弹性构件 当盖部分位于第二位置时,弹性构件被压入开口中。 可以防止弹性部件压入开口部的压力不足,能够提高防水性能