WO2008153111-A1 -- JP06196187-A   ;  JP2006040598-A   MATSUSHITA ELECTRIC IND CO LTD (MATU)   AKIYAMA T,  OKADA Y,  SHIBUTANI S,  UEDA H,  TAKADA M;  JP2008059960-A   TOYOTA JIDOSHA KK (TOYT)   KURUNGOT S,  ISHIMARU H;  US6730424-B1   H-POWER CORP (HPOW-Non-standard)   HE C,  QI Z,  KAUFMAN A;  EP2168194-A1 -- US20020127466-A1   ;  US20040191584-A1   ;  US20050233186-A1   ;  US2010119887-A1 -- US4756718-A   TOSHIBA KK (TOKE)   UENO S,  SEGAWA N,  KOGAMI T;  US5601936-A   BRITISH GAS PLC (GASC)   DUDFIELD C D,  DICKS A L;  US20060019131-A1   ;  US20070009773-A1   ;  US6268077-B1   MOTOROLA INC (MOTI)   KELLEY R J,  PRATT S D,  LANDRETH B D,  PENNISI R W,  MUTHUSWAMY S,  URBISH G F;  US6730424-B1   H-POWER CORP (HPOW-Non-standard)   HE C,  QI Z,  KAUFMAN A;  US6881510-B1   MATSUSHITA ELECTRIC IND CO LTD (MATU)   GYOTEN H,  KANBARA T,  UCHIDA M,  HATOH K,  SAKAI O;  US7695836-B2   HYUNDAI MOTOR CO LTD (HYMR)   LEE J H;  US7955745-B2 -- JP06196187-A   ;  JP2005093143-A   NEC CORP (NIDE)   WATANABE Y,  MASAKO T,  KIMURA H,  KAJITANI K,  KUBO Y;  JP2006040598-A   MATSUSHITA ELECTRIC IND CO LTD (MATU)   AKIYAMA T,  OKADA Y,  SHIBUTANI S,  UEDA H,  TAKADA M;  JP2008059960-A   TOYOTA JIDOSHA KK (TOYT)   KURUNGOT S,  ISHIMARU H;  US4756718-A   TOSHIBA KK (TOKE)   UENO S,  SEGAWA N,  KOGAMI T;  US5601936-A   BRITISH GAS PLC (GASC)   DUDFIELD C D,  DICKS A L;  US20060019131-A1   ;  US20070009773-A1   ;  US6268077-B1   MOTOROLA INC (MOTI)   KELLEY R J,  PRATT S D,  LANDRETH B D,  PENNISI R W,  MUTHUSWAMY S,  URBISH G F;  US6730424-B1   H-POWER CORP (HPOW-Non-standard)   HE C,  QI Z,  KAUFMAN A;  US6881510-B1   MATSUSHITA ELECTRIC IND CO LTD (MATU)   GYOTEN H,  KANBARA T,  UCHIDA M,  HATOH K,  SAKAI O;  US7695836-B2   HYUNDAI MOTOR CO LTD (HYMR)   LEE J H;  WO2008026054-A1   TOYOTA JIDOSHA KK (TOYT)   KURUNGOT S,  ISHIMARU H;  KR1148402-B1 -- JP06196187-A   ;  JP2006040598-A   MATSUSHITA ELECTRIC IND CO LTD (MATU)   AKIYAMA T,  OKADA Y,  SHIBUTANI S,  UEDA H,  TAKADA M;  US6730424-B1   H-POWER CORP (HPOW-Non-standard)   HE C,  QI Z,  KAUFMAN A;  CN101682062-B -- JP2006040598-A   MATSUSHITA ELECTRIC IND CO LTD (MATU)   AKIYAMA T,  OKADA Y,  SHIBUTANI S,  UEDA H,  TAKADA M;  US6730424-B1   H-POWER CORP (HPOW-Non-standard)   HE C,  QI Z,  KAUFMAN A