;  EP1071150-A2 -- EP921586-A2   MITSUBISHI HEAVY IND CO LTD (MITO)   TSUKUDA H,  NISHI T,  HISATOME N,  HOUJYOU T;  JP04338180-A   ;  JP08222246-A   ;  JP08250138-A   ;  US4598028-A   WESTINGHOUSE ELECTRIC CORP (WESE)   ROSSING B R,  ZYMBOLY G E;  US6312847-B1 -- US4598028-A   WESTINGHOUSE ELECTRIC CORP (WESE)   ROSSING B R,  ZYMBOLY G E;  US5073405-A   WESTINGHOUSE ELECTRIC CORP (WESE)   VASILOW T R,  ZYMBOLY G E;  US5108850-A   WESTINGHOUSE ELECTRIC CORP (WESE)   CARLSON W G,  RUKA R J;  US5244742-A   MITSUBISHI MATERIALS CORP (MITV)   OGI K,  SOYAMA N;  US5426003-A   WESTINGHOUSE ELECTRIC CORP (WESE)   RICHARDS V L,  KUO L,  SPENGLER C J,  FOLSER G R,  VORA S D;  US5543239-A   ELECTRIC POWER RES INST INC (ELPO)   VIRKAR A V,  FUNG K,  TANNER C W;  US5591537-A   RISOE FORSKNINGSCENTER (RISO-Non-standard)   BAGGER C,  KINDL B,  MOGENSEN M;  US5686198-A   WESTINGHOUSE ELECTRIC CORP (WESE)   KUO L J H,  SINGH P,  RUKA R J,  VASILOW T R,  BRATTON R J;  US6379832-B1 -- EP1071150-A2   MITSUBISHI HEAVY IND CO LTD (MITO)   TSUKUDA H,  YAMASHITA A,  KOSAKA K,  HISATOME N,  HOUJYOU T;  JP2000106192-A   MITSUBISHI HEAVY IND CO LTD (MITO)   TSUKUDA H,  YAMASHITA A,  KOSAKA K,  HISATOME N,  HOUJYOU T;  US4598028-A   WESTINGHOUSE ELECTRIC CORP (WESE)   ROSSING B R,  ZYMBOLY G E;  US5122425-A   FUJI ELECTRIC MFG CO LTD (FJIE)   YOSHIDA S,  SHIMIZU H,  MARUYAMA S;  US5217822-A   FUJI ELECTRIC MFG CO LTD (FJIE)   YOSHIDA S,  SHIMIZU H;  US5426003-A   WESTINGHOUSE ELECTRIC CORP (WESE)   RICHARDS V L,  KUO L,  SPENGLER C J,  FOLSER G R,  VORA S D;  US5543239-A   ELECTRIC POWER RES INST INC (ELPO)   VIRKAR A V,  FUNG K,  TANNER C W;  US5591537-A   RISOE FORSKNINGSCENTER (RISO-Non-standard)   BAGGER C,  KINDL B,  MOGENSEN M;  US5686198-A   WESTINGHOUSE ELECTRIC CORP (WESE)   KUO L J H,  SINGH P,  RUKA R J,  VASILOW T R,  BRATTON R J;  US6207314-B1   MITSUBISHI HEAVY IND CO LTD (MITO)   TSUKUDA H,  NISHI T,  HISATOME N,  HOUJYOU T;  US6312847-B1   MITSUBISHI HEAVY IND CO LTD (MITO)   TSUKUDA H,  YAMASHITA A,  KOSAKA K,  HISATOME N,  HOUJYOU T;  EP1071150-B1 -- EP921586-A2   MITSUBISHI HEAVY IND CO LTD (MITO)   TSUKUDA H,  NISHI T,  HISATOME N,  HOUJYOU T;  JP04338180-A   ;  JP08222246-A   ;  JP08250138-A   ;  US4598028-A   WESTINGHOUSE ELECTRIC CORP (WESE)   ROSSING B R,  ZYMBOLY G E;  DE19908213-B4 -- DE3907485-A   ASEA BROWN BOVERI AG (ALLM)   ROHRFR J;  DE4116732-A   ;  DE4129553-C2   FUJI ELECTRIC MFG CO LTD (FJIE)   YOSHIDA S,  SHIMIZU H;  DE19609418-C2   FORSCHUNGSZENTRUM JUELICH GMBH (KERJ)   BLASS G,  MANS D,  BOLLIG G,  FOERTHMANN R,  BUCHKREMER H;  DE69220400-E   NGK INSULATORS LTD (NIGA)   MISAWA H,  SEIKE S;  DE69227419-E   OSAKA GAS CO LTD (OSAG)   IPPONMATSU M,  SUZUKI M,  SASAKI H,  OTOSHI S;  DE69319493-E   WESTINGHOUSE ELECTRIC CORP (WESE)   VASILOW T R,  RUKA R J,  KUO L J;  JP3631923-B2 -- JP02072558-A   ;  JP07240214-A   ;  JP08250138-A