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专利名称：High frequency wave absorbing ceramics发明人：Toshiki Saburi,Nobuyuki Ohya,Toru
Yamazaki,Taisei Katoh
申请号：US07/125713申请日：19871125公开号：US04824812A公开日：190425
摘要：A high frequency wave absorbing ceramics can be used, for example, as an EMIpreventive filter for interrupting high frequency wave intruding into electronic circuits.The high frequency wave absorbing ceramics are composed of a ternary compositioncomprising from 50 to 82.5 mol % of lead iron niobate Pb(Fe1/2Nb1/2)O.sub.3, from 17.5to 40 mol % of lead iron tungstate Pb(Fe2/3W1/3)O.sub.3 and not more than 25 mole %of lead cobalt niobate Pb(Co1/3Nb2/3)O.sub.3 based on the total 100 mol % of acomposition composed of lead iron niobate Pb(Fe1/2Nb1/2)O.sub.3, lead iron tungstatePb(Fe2/3W1/3)O.sub.3 and lead cobalt niobate Pb(Co1/3Nb2/3) O.sub.3.
申请人：NIPPONDENSO CO., LTD.
代理机构：Cushman, Darby & Cushman
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