;  EP1328052-A2 -- EP798839-A2   GENERAL MOTORS CORP (GENK)   LOFTY N M,  EIREF B M,  DIEFENBACH R C;  EP1308739-A2   PANASONIC EV ENERGY CO LTD (MATU)   MINAMIURA K;  EP1317045-A2   PANASONIC EV ENERGY KK (MATU)   YUDAHIRA H;  GB2341258-A   MITSUBISHI DENKI KK (MITQ)   KIZAWA S,  KOMATSU M;  JP2000133318-A   SONY CORP (SONY)   SATO B;  JP2001309563-A   SEKISUI CHEM IND CO LTD (SEKI)   SEZUKURI K;  US5422558-A   ;  US5914585-A   NORAND CORP (NORA-Non-standard)   GRABON R J;  US6252376-B1   JAPAN STORAGE BATTERY CO LTD (NIST)   NAKAMURA H,  UEDA K;  US6274950-B1   AMERICAN POWER CONVERSION (SCHN)   GOTTLIEB P A,  DOWDELL R B;  US6919707-B2 -- EP1380739-A1   NISSAN MOTOR CO LTD (NSMO)   AOYAMA S,  TAKEMURA S,  SUGIYAMA T,  HIYOSHI R,  NODA T;  EP798839-A2   GENERAL MOTORS CORP (GENK)   LOFTY N M,  EIREF B M,  DIEFENBACH R C;  EP1317045-A2   PANASONIC EV ENERGY KK (MATU)   YUDAHIRA H;  GB2341258-A   MITSUBISHI DENKI KK (MITQ)   KIZAWA S,  KOMATSU M;  JP06175888-A   ;  JP2000133318-A   SONY CORP (SONY)   SATO B;  JP2001309563-A   SEKISUI CHEM IND CO LTD (SEKI)   SEZUKURI K;  US5422558-A   ;  US5914585-A   NORAND CORP (NORA-Non-standard)   GRABON R J;  US5923148-A   AIMS SYSTEMS INC (AIMS-Non-standard)   WILEY P H,  SIDERIS A G;  US6072300-A   NISSAN MOTOR CO LTD (NSMO)   TSUJI T;  US6252376-B1   JAPAN STORAGE BATTERY CO LTD (NIST)   NAKAMURA H,  UEDA K;  US6274950-B1   AMERICAN POWER CONVERSION (SCHN)   GOTTLIEB P A,  DOWDELL R B;  US6417647-B2   ;  WO1998010478-A1   ;  JP3893291-B2 -- JP2000078759-A   MITSUBISHI DENKI KK (MITQ)   KIZAWA S,  KOMATSU M;  JP2000294298-A   NIPPON MORI ENERGY KK (NIMO-Non-standard)   SONOBE S;  JP2001352688-A   ;  JP90108156-U   ;  JP92028349-U   ;  US5422558-A   ;  EP1328052-B1 -- EP798839-A2   GENERAL MOTORS CORP (GENK)   LOFTY N M,  EIREF B M,  DIEFENBACH R C;  EP1308739-A2   PANASONIC EV ENERGY CO LTD (MATU)   MINAMIURA K;  EP1317045-A2   PANASONIC EV ENERGY KK (MATU)   YUDAHIRA H;  GB2341258-A   MITSUBISHI DENKI KK (MITQ)   KIZAWA S,  KOMATSU M;  JP2000133318-A   SONY CORP (SONY)   SATO B;  JP2001309563-A   SEKISUI CHEM IND CO LTD (SEKI)   SEZUKURI K;  US5422558-A   ;  US5914585-A   NORAND CORP (NORA-Non-standard)   GRABON R J;  US6252376-B1   JAPAN STORAGE BATTERY CO LTD (NIST)   NAKAMURA H,  UEDA K;  US6274950-B1   AMERICAN POWER CONVERSION (SCHN)   GOTTLIEB P A,  DOWDELL R B