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  • [发明专利]WO1999US13449 _ PRIMEX AEROSPACE COMPANY 1999年06月15日
    A single power control circuit (400) selectively distributes power from a power supply (710) to cathode heater (190), cathode keeper (186) and thruster magnets (174) of a thruster (200). The power control circuit (400) utilizes a plurality of switchin...
  • 2.
    [发明专利]JP20000555473 _ 1999年06月15日
  • [发明专利]JP19990072990 _ SANYO DENSHI SYST KK 1999年03月18日
    PROBLEM TO BE SOLVED: To provide a controller which causes an AC motor which uses a solar cell as a power supply for rotation to rotate with maximum energy efficiency, without using a battery which is normally used for the stabilization of power. SOLU...
  • [发明专利]EP19990301225 _ NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCEAND TECHNOLOGY EAMEX CORPORATION 1999年02月19日
  • [发明专利]EP19990115769 _ MITSUBISHI DENKI KABUSHIKI KAISHA 1999年08月10日
    An ion source device capable of reducing deterioration of an source due to virulent gas, such as moisture or oxygen, which may adversely affect an ion source, while maintaining the ion source in an ion source driving installation state. An ion source ...
  • [发明专利]JP19990014268 _ HITACHI LTD HITACHI ENGINEERING & SERVICES CO LTD 1999年01月22日
    PROBLEM TO BE SOLVED: To restrain the fluctuating portion of effective power to be outputted to a system and to perform the stable charging and discharging operations of a power storing system, by letting the power storing system have the functions of...
  • [发明专利]JP19990318685 _ TSUNODA YONEO 1999年10月04日
    PROBLEM TO BE SOLVED: To obtain a hybrid system vertically providing a tower unit in an arbitrary place on a road, equipping the tower unit with a wind mill device utilizing an automobile wind and a solar device, charging a storage battery with energy...
  • [发明专利]DE1999637129T _ EAMEX CORP. NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCEAND TECHNOLOGY 1999年02月19日
  • [发明专利]DE1999513851 _ THALES ELECTRON DEVICES GMBH 1999年06月11日
  • [发明专利]US19990101922 _ PLASMA TECH CO., LTD. 1999年06月07日
    PCT No. PCT/KR97/00225 Sec. 371 Date Jun. 7, 1999 Sec. 102(e) Date Jun. 7, 1999 PCT Filed Nov. 18, 1997 PCT Pub. No. WO98/22969 PCT Pub. Date May 28, 1998The invention relates to a plasma technique, and can be used for generation of beams of charged p...
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