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    • 3. 发明授权
    • Device for observing waveform of microwave signal
    • 用于观察微波信号波形的装置
    • US3921028A
    • 1975-11-18
    • US45103174
    • 1974-03-14
    • UNIV OSAKA
    • FUJISAWA KAZUO
    • G01R13/34H01J25/78H01J29/98H01J23/16H01J29/70
    • G01R13/342H01J25/78
    • Apparatus for displaying the waveform of a microwave signal which embodies means for producing an electron beam, deflecting said beam in synchronism with the microwave signal and permitting transmission of the beam only when it is subjected to a predetermined deflection to form a pulsed beam. Deflecting the pulsed beam by a second deflecting signal synchronized with the microwave signal while varying the phase difference by a third signal and then displaying the effect of deflection by the second signal on one axis of the display means and controlling the sweep of the other axis of the display means by said third signal.
    • 用于显示微波信号的波形的装置,其包括用于产生电子束的装置,与所述微波信号同步地偏转所述光束,并且仅当所述光束经受预定偏转以形成脉冲光束时才能传输光束。 通过与微波信号同步的第二偏转信号偏转脉冲光束,同时将相位差改变第三信号,然后通过第二信号在显示装置的一个轴上显示偏转的影响,并且控制另一个轴的扫描 所述显示装置通过所述第三信号。
    • 6. 发明授权
    • Process for producing 6-amino-penicillanic acid
    • 生产6-氨基 - 丙酸的方法
    • US3809699A
    • 1974-05-07
    • US9890770
    • 1970-12-16
    • UNIV OSAKA
    • ISHIMARU T
    • C07D499/00C07D499/42C07D91/14C07D99/16
    • C07D499/00
    • 6-AMINOPENCILLANIC ACID IS PREPARED, WITH ADVANTAGE IN INDUSTRIAL VIEWPOINT, BY (A) REACTING 6-ACYLAMINOPENICILLANIC ACID OR A SALT THEREOF WITH A HALOGENATED COMPOUND SUCH AS TRIHALIDE OF PHOSPHORUS, TETRAHALIDE OF SILICON, PHOSPHOROUS PENTAHALIDE, PHOSGENE OR THIOPHOSGENE, IN THE PRESENCE OF AN ACID-BINDING REAGENT FOR THE PURPOSE OF TO PROTECT THE CARBOXYL GROUP OF THE 6-ACYLAMIDOPENICILLANIC ACID BY FORMING A MIXED ACID ANHYDRIDE, (B) CONVERTING THE RESULTANT MIXED ACID ANHYDRIDE INTO THE CORRESPONDING IMINO HALIDE BY REACTING IT WITH AN AMINO HALIDEFORMING REAGENT SUCH AS PHOSPHOROUS OXYCHLORIDE, PHOSPHORUS PENTACHLORIDE, PHOSPHORUS TRIBROMIDE, PHOSGENE, OXALYL CHLORIDE OR PROTOCATECHYL PHOSPHOROUS TRICHLORIDE TO FORM THE CORRESPONDING IMINO HALIDE, (C) CONVERTING THE RESULTANT IMINO HALIDE INTO THE CORRESPONDING IMINOETHER BY REACTING IT WITH AN ALCOHOL AND FINALLY (D) HYDROLYZING THE IMINO ETHER AND REMOVING THE PROTECTED GROUP OF THE CARBOXYL GROUP TO FORM 6-AMINOPENCILLANIC ACID.