US2001016188-A1 -- US4257920-A   SOC FR PROD CATALYSE (SFPC);  US4913842-A   MITSUBISHI GAS CHEM CO INC (MITN)   YONEOKA M,  FURUTA T,  YAMAMOTO Y,  NOZAKI S,  TAKADA K,  WATABE K,  IKARASHI T N;  US6849573-B2 -- DE3405217-A   MITSUBISHI GAS CHEM CO INC (MITN)   YONEOKA M,  FURUTA T,  YAMAMOTO Y,  NOZAKI S,  TAKADA K,  WATABE K,  IKARASHI T N;  JP05261288-A   ;  JP50049204-A   METALLGESELLSCHAFT AG (METG);  JP51068488-A   NIPPON SOKEN KK (NSOK);  NIPPON JIDOSHA BUHIN SOGO (NIJI);  JP58174237-A   NISSAN MOTOR CO LTD (NSMO)   ETO Y;  JP58177153-A   NISSAN MOTOR CO LTD (NSMO)   MASUDA G;  JP2000281303-A   ;  US3898057-A   METALLGESELLSCHAFT AG (METG);  US3970739-A   ;  US3997477-A   NIPPON SOKEN KK (NSOK);  NIPPON JIDOSHA BUHIN SOGO (NIJI);  US4105590-A   DEUT GOLD & SILBER AG (DEGS);  US4237032-A   JOHNSON MATTHEY CO LTD (JOHO)   EVANS W D J,  LARBEY R J,  STEWART T I;  US4492769-A   PRO-CATALYSE (SFPC)   BLANCHARD G,  BRUNELLE J P,  PRIGENT M;  US4581343-A   PRO-CATALYSE (SFPC)   BLANCHARD G,  BRUNELLE J P,  DOZIERES R,  GOLDENBERG E,  PRIGENT M;  US4711870-A   BRIDGESTONE TIRE KK (BRID)   YAMADA T,  WATABE H,  MURAKAMI Y;  US4927857-A   ENGELHARD MINERALS CORP (ENGH);  US4939292-A   PHILLIPS PETROLEUM CO (PHIP)   ELLIOTT D J,  PENNELLA F;  US4950385-A   ;  US4963521-A   DEGUSSA AG (DEGS)   ENGLER B,  KOBERSTEIN E,  LOX E;  US4985211-A   ;  US5039647-A   MAZDA MOTOR CORP (MAZD);  TOYO KOGYO CO (TOYO)   IHARA K,  MURAKAMI H;  US5212142-A   ENGELHARD CORP (ENGH)   DETTLING J C;  US5266730-A   KAO CORP (KAOS)   ABE H,  AIKAWA J,  OKABE K,  SOTOYA K;  US5376610-A   NGK INSULATORS LTD (NIGA)   TAKAHATA T,  EHARA H,  YAMANASHI F,  SHIBATA K,  ABE F,  KONDO T,  SUZUKI J,  NODA N;  US5635439-A   MASUMOTO T (MASU-Individual);  INOUE A (INOU-Individual);  HONDA GIKEN KOGYO KK (HOND);  YKK CORP (YOSI)   FUKUI H,  MASUMOTO T,  INOUE A,  KIMURA H,  NOSAKI K;  US5814227-A   ;  US5849254-A   TOYOTA JIDOSHA KK (TOYT)   SUZUKI H,  MIYOSHI N;  US5894068-A   KHARAS K C C (KHAR-Individual);  HENK M G (HENK-Individual);  ROBOTA H J (ROBO-Individual)   KHARAS K C C,  HENK M G,  ROBOTA H J;  US5935529-A   RIKEN CORP (RIKE)   SAITO M,  YOSHIDA K;  US5945369-A   TOYOTA CHUO KENKYUSHO KK (TOYW)   KIMURA M,  MATSUOKA Y,  SOBUKAWA H,  FUKUI M,  SUDA A,  KANDORI T,  UKYO Y;  US6087295-A   ASEC MFG (ASEC-Non-standard)   KHARAS K C C,  ROBOTA H J,  HENK M G;  US6123913-A   LITTLE INC ARTHUR D (LITT)   CLAWSON L G;  US6217831-B1   TOYOTA JIDOSHA KK (TOYT)   SUZUKI H,  MIYOSHI N;  US6221804-B1   MAZDA MOTOR CORP (MAZD)   YAMADA H,  TAKAMI A,  IWAKUNI H,  KYOGOKU M,  OKAMOTO K;  US6245303-B1   LITTLE INC ARTHUR D (LITT)   BENTLEY J M,  MITCHELL W L,  CLAWSON L G,  CROSS J C;  JP3743995-B2 -- JP04313339-A   ;  JP05261288-A   ;  JP63129002-A   ;  JP2001089102-A