;  US7040596-B2 -- US3424429-A   ;  US5546987-A   ;  US20050118475-A1   ;  JP2002093438-A   HONDA MOTOR CO LTD (HOND)   HAYASHI M,  KASHIWABARA S;  JP2002347156-A   ;  JP4147132-B2 -- JP02266179-A   ;  JP04160279-A   ;  JP05248551-A   ;  JP2001227671-A   WATANABE K (WATA-Individual);  KATO Y (KATO-Individual);  YOSHIOKA M (YOSH-Individual)   WATANABE K,  KATO Y,  YOSHIOKA M;  JP2002246052-A   ;  US7441560-B2 -- JP2003151588-A   HONDA MOTOR CO LTD (HOND)   SUGAWARA T,  MIYANO K;  US2924233-A   ;  US4550591-A   CENT ELEC GENERATING BOARD (CENE)   GLANVILLE R,  LLOYD O,  ROBBINS K V;  US4697608-A   ;  US5020771-A   RANCO JAPAN LTD (RANC)   NAKATSUKAS K,  KUNEGUCHI K;  US5145148-A   ;  US5441821-A   BALLARD POWER SYSTEMS INC (BLRD)   GORBELL B N,  MERRITT R D;  US5522708-A   ;  US5573867-A   WESTINGHOUSE ELECTRIC CORP (WESE)   BASEL R A,  ANTENUCCI A B,  ZAFRED P R,  GILLETT J E,  DEDERER J T;  US5582205-A   EATON CORP (EAYT)   MCCARTY W R,  DONNER R A,  COOPER R J;  US5626326-A   ;  US5941502-A   EATON CORP (EAYT)   COOPER R J;  US6013385-A   EMPRISE CORP (EMPR-Non-standard)   DUBOSE R A;  US6019203-A   ;  US6065734-A   KELSEY-HAYES CO (KELS)   LINKNER H L,  TACKETT W D;  US6152162-A   MOTT METALLURGICAL CORP (MOTM)   BALAZY R D,  COWAN C L,  EISENMANN M R,  FRINK K E,  KULHA E;  US20020136942-A1   ;  US20030148167-A1   ;  US20030170518-A1   ;  US20040101734-A1   ;  US6290205-B1   ;  US6451467-B1   PLUG POWER INC (PLUG-Non-standard)   PESCHKE N,  RICHARDSON C;  US6508268-B1   CKD KK (CKDC)   KOKETSU M;  JP02021082-A   ;  JP03098382-A   ;  JP07224966-A   ;  JP07272738-A   ;  JP50100134-A   ;  JP58082569-A   ;  JP2000179722-A   ;  JP2001227671-A   WATANABE K (WATA-Individual);  KATO Y (KATO-Individual);  YOSHIOKA M (YOSH-Individual)   WATANABE K,  KATO Y,  YOSHIOKA M;  JP2002093438-A   HONDA MOTOR CO LTD (HOND)   HAYASHI M,  KASHIWABARA S;  JP2002313389-A   HONDA GIKEN KOGYO KK (HOND)   ABE H,  ASANO Y,  KAI M;  JP2002347156-A   ;  JP2002373682-A   HONDA MOTOR CO LTD (HOND)   SUGAWARA T,  MIYANO K;  JP08503055-W   ;  US3424429-A   ;  US5368274-A   GREATBATCH LTD WILSON (GREW)   FALK T J;  US5546987-A   ;  US20050118475-A1   ;  US6815103-B2   HONDA GIKEN KOGYO KK (HOND)   ABE H,  ASANO Y,  KAI M