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    • 4. 发明申请
    • CENTRIFUGAL COMPRESSOR
    • 离心式压缩机
    • US20140161588A1
    • 2014-06-12
    • US14234447
    • 2012-01-30
    • Hiroyuki MiyataNaoto Yonemura
    • Hiroyuki MiyataNaoto Yonemura
    • F04D17/12F04D27/00F04D29/054
    • F04D17/12F04D25/163F04D27/002F04D27/0246F04D29/054F25J3/04018F25J3/04957F25J2230/20F25J2230/24F25J2230/40
    • A centrifugal compressor, the capacity of which can be increased with keeping the diameter of the impeller at minimum, is provided. The centrifugal compressor includes: a drive gear (11); a drive shaft (3) protruding from one side of the drive gear (11) in a central axis direction of the drive gear (11); a no. 1 driven pinion gear (12) configured for rotation of the drive gear (11) to be transmitted thereto; a no. 1 driven pinion shaft (5) protruding from both sides of the no. 1 driven pinion gear (12) in a central axis direction of the no. 1 driven pinion gear (12); and a couple of first stage compressor sections (7a, 7b), each of which is provided in each end of the no. 1 driven pinion shaft (5) and is configured to compress fluid by rotation of the no. 1 driven pinion shaft (5).
    • 提供了一种离心式压缩机,其能力可以通过将叶轮的直径保持在最小来提高。 离心压缩机包括:驱动齿轮(11); 驱动轴(3),其在所述驱动齿轮(11)的中心轴线方向从所述驱动齿轮(11)的一侧突出; 一个不 1驱动小齿轮(12)构造成用于驱动齿轮(11)的旋转以被传递到其上; 一个不 1个从动齿轮轴(5)从两侧突出。 1从动小齿轮(12)的中心轴方向。 1从动小齿轮(12); 以及一对第一级压缩机部分(7a,7b),每个第一级压缩机部分设置在第一级压缩机部分的每端。 1从动小齿轮轴(5),并且构造成通过旋转的第 1个从动小齿轮轴(5)。
    • 6. 发明授权
    • Process for preparing optically active (S or R)-α amino acid and (R or S)-α amino acid ester in one phase organic reaction medium
    • 在一相有机反应介质中制备光学活性(S或R)-α氨基酸和(R或S)-α氨基酸酯)的方法
    • US08143052B2
    • 2012-03-27
    • US12064589
    • 2006-08-25
    • Yasuhito YamamotoHiroyuki MiyataTadayoshi Konegawa
    • Yasuhito YamamotoHiroyuki MiyataTadayoshi Konegawa
    • C12P41/00
    • C12P13/04C12P41/005
    • The present invention discloses a process for preparing an optically active (S or R)-α-amino acid represented by the formula (II): wherein R represents an alkyl group, alkenyl group, alkynyl group, cycloalkyl group, aralkyl group, heteroarylalkyl group, aryl group or heteroaryl group, each of which may have a substituent(s), and * represents an asymmetric carbon atom, and an optically active (R or S)-α-amino acid ester represented by the formula (III): wherein R1 represents an alkyl group which may have a substituent(s), and * represents an asymmetric carbon atom, provided that it has an opposite absolute configuration to that of the compound of the formula (II), which comprises selectively reacting water with one of enantiomers of an α-amino acid ester which is a racemic mixture and represented by the formula (I): wherein R and R1 have the same meanings as defined above, in the presence of a lipase or a protease in an organic solvent.
    • 本发明公开了一种制备由式(II)表示的光学活性(S或R)-α-氨基酸的方法:其中R表示烷基,烯基,炔基,环烷基,芳烷基,杂芳基烷基 ,芳基或杂芳基,每个可以具有取代基,*表示不对称碳原子,和由式(III)表示的光学活性(R或S)-α-氨基酸酯:其中 R 1表示可以具有取代基的烷基,*表示不对称碳原子,条件是其具有与式(II)化合物相反的绝对构型,其包括选择性地使水与 由式(I)表示的α-氨基酸酯的对映异构体:其中R和R 1具有与上述相同的含义,在有机溶剂中存在脂肪酶或蛋白酶的情况下。