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经营范围
发明名称
DIELECTRIC RESONATOR
摘要
PURPOSE:Protection of the dielectric resonator from moisture and stain of the atmospheric air without changing the quality factor and resonance frequency.
申请公布号
JPS526445(A)
申请公布日期
1977.01.18
申请号
JP19750082744
申请日期
1975.07.07
申请人
HITACHI LTD
发明人
KIMURA KATSUHIRO;KANEKO YOUICHI
分类号
H01P1/30;H01P7/10
主分类号
H01P1/30
代理机构
代理人
主权项
地址
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