WO2003107462-A2 -- JP02226669-A   ;  US5484666-A   BALLARD POWER SYSTEMS INC (BLRD)   POW E G,  SCHLOSSER W,  GIBB P,  VOSS H H;  US5543240-A   SAMSUNG ELECTRONICS CO LTD (SMSU)   LEE J,  LEE S,  KIM I;  US2005147858-A1 -- US5484666-A   BALLARD POWER SYSTEMS INC (BLRD)   POW E G,  SCHLOSSER W,  GIBB P,  VOSS H H;  US5543240-A   SAMSUNG ELECTRONICS CO LTD (SMSU)   LEE J,  LEE S,  KIM I;  US5997594-A   NORTHWEST POWER SYSTEMS LLC (BLRD)   EDLUND D J,  PLEDGER W A;  US6110612-A   PLUG POWER INC (PLUG-Non-standard)   WALSH M M;  US6319306-B1   IDATECH LLC (BLRD)   EDLUND D J,  PLEDGER W A,  STUDEBAKER T;  US6444346-B1   MATSUSHITA ELECTRIC IND CO LTD (MATU)   OHARA H,  UCHIDA M,  SUGAWARA Y;  US6566001-B2   HONDA GIKEN KOGYO KK (HOND)   YOSIDA T,  MORIYA T,  KATO H;  US6660069-B2   TOYOTA JIDOSHA KK (TOYT)   SATO H,  IGUCHI S,  AOYAMA S,  ITO N,  NAKATA T;  US6815115-B2   HONDA GIKEN KOGYO KK (HOND)   SUGITA N,  NAKANISHI Y,  KIKUCHI H;  US6858338-B2   HONDA GIKEN KOGYO KK (HOND)   SUGIURA S,  WARIISHI Y,  ENJOJI N,  SUGITA N;  DE10226609-B4 -- US4943495-A   MITSUBISHI DENKI KK (MITQ)   OKADA T,  MIYAZAKI M,  TANAKA T,  HATOU C,  MUKAI M;  US5300370-A   BALLARD POWER SYSTEMS INC (BLRD)   VOSS H H,  WILKINSON D P,  WASHINGTON K B;  US5326650-A   NGK INSULATORS LTD (NIGA)   ISHIDA Y;  US5342706-A   INST GAS TECHNOLOGY (IGTE)   PETRI R J,  MARIANOWSKI L G;  US5484666-A   BALLARD POWER SYSTEMS INC (BLRD)   POW E G,  SCHLOSSER W,  GIBB P,  VOSS H H;  US5543240-A   SAMSUNG ELECTRONICS CO LTD (SMSU)   LEE J,  LEE S,  KIM I;  US7393389-B2 -- US5484666-A   BALLARD POWER SYSTEMS INC (BLRD)   POW E G,  SCHLOSSER W,  GIBB P,  VOSS H H;  US5543240-A   SAMSUNG ELECTRONICS CO LTD (SMSU)   LEE J,  LEE S,  KIM I;  US5997594-A   NORTHWEST POWER SYSTEMS LLC (BLRD)   EDLUND D J,  PLEDGER W A;  US6110612-A   PLUG POWER INC (PLUG-Non-standard)   WALSH M M;  US6319306-B1   IDATECH LLC (BLRD)   EDLUND D J,  PLEDGER W A,  STUDEBAKER T;  US6444346-B1   MATSUSHITA ELECTRIC IND CO LTD (MATU)   OHARA H,  UCHIDA M,  SUGAWARA Y;  US6566001-B2   HONDA GIKEN KOGYO KK (HOND)   YOSIDA T,  MORIYA T,  KATO H;  US6660069-B2   TOYOTA JIDOSHA KK (TOYT)   SATO H,  IGUCHI S,  AOYAMA S,  ITO N,  NAKATA T;  US6815115-B2   HONDA GIKEN KOGYO KK (HOND)   SUGITA N,  NAKANISHI Y,  KIKUCHI H;  US6858338-B2   HONDA GIKEN KOGYO KK (HOND)   SUGIURA S,  WARIISHI Y,  ENJOJI N,  SUGITA N