;  US7161258-B2 -- JP2002013446-A   ;  US4993386-A   TOYOTA CHUO KENKYUSHO KK (TOYW)   OZASA T,  SUZUKI S,  SAJI K,  KONDO H,  TAKAHASHI H;  US5143040-A   ;  US5150686-A   ;  US5203870-A   ;  US5216995-A   HONDA GIKEN KOGYO KK (HOND)   HOSODA F,  FUJIMOTO S,  UCHIYAMA M,  OKETANI T,  ABE Y,  YAMAZAKI K,  WAKASHIRO T,  MORIWAKI H;  US5216997-A   ;  US5216998-A   ;  US5245975-A   ;  US5315980-A   ;  US5368002-A   ;  US5438967-A   TOYOTA JIDOSHA KK (TOYT)   ITO Y;  US5598828-A   ;  US5606955-A   ;  US5613481-A   ;  US5632261-A   HONDA GIKEN KOGYO KK (HOND)   MAKI H,  AKAZAKI S;  US5647332-A   ;  US5655507-A   NISSAN MOTOR CO LTD (NSMO)   KAWASAKI T;  US5669360-A   ;  US5685285-A   ;  US5694904-A   ;  US5699778-A   MITSUBISHI JIDOSHA KOGYO KK (MITM)   MURAGUCHI T,  MATSUMOTO T;  US5754971-A   MITSUBISHI MOTOR CORP (MITM)   MATSUMOTO T,  MIYAKE M,  HASHIMOTO T,  NOMURA T,  KANAO H;  US5765372-A   MAZDA MOTOR CORP (MAZD)   MITOBE N,  SHIMIZU I,  MINAMITANI K,  HORI Y,  NISHIOKA F,  HOSOKAI T,  OKA K,  TERAO H,  FUJIMOTO M,  HARADA M;  US5778867-A   ;  US5782218-A   ;  US5850820-A   ;  US5862795-A   TOYOTA JIDOSHA KK (TOYT)   OSANAI A;  US5909727-A   ;  US5944003-A   ;  US5988150-A   TOYOTA JIDOSHA KK (TOYT)   OSANAI A;  US6044831-A   ;  US6079397-A   ;  US6095121-A   ;  US6102003-A   TOYOTA JIDOSHA KK (TOYT)   HYODO Y,  TAKAGI N,  MURAI T;  US6116221-A   ;  US20020046739-A1   ;  US20020069011-A1   ;  US20030154963-A1   ;  US20040261765-A1   ;  US20050056262-A1   ;  US20050211228-A1   ;  US20050240336-A1   ;  US20060042605-A1   ;  US6182641-B1   ;  US6196203-B1   DELPHI TECHNOLOGIES INC (DELP)   GRIEVE M J,  HIMES E G,  QIAO N;  US6234156-B1   TOYOTA JIDOSHA KK (TOYT)   MUTO H;  US6257218-B1   ;  US6283088-B1   TOYOTA JIDOSHA KK (TOYT)   TAKAGI N,  HYODO Y;  US6286316-B1   ;  US6305362-B1   HONDA MOTOR CO LTD (HOND)   KITAMURA T,  SUZUKI N,  KUROKAWA N,  ISHIGURO T;  US6308692-B1   ;  US6325052-B1   ;  US6330879-B1   HONDA MOTOR CO LTD (HOND)   KITAMURA T,  SUZUKI N,  KUROKAWA N,  ISHIGURO T;  US6347617-B1   HONDA MOTOR CO LTD (HOND)   KITAMURA T,  SUZUKI N,  KUROKAWA N,  ISHIGURO T,  SUZUKI T,  ICHITANI T;  US6394074-B1   DENSO CORP (NPDE);  TOYOTA JIDOSHA KK (TOYT)   OKADA K,  KOYAMA N,  MURAMATSU T,  KOJIMA S;  US6948475-B1   CLEAN AIR POWER INC (CLEA-Non-standard)   WONG H C,  PAYNE J,  BECK N J;  US6332456-B2   ;  US6529815-B2   DETROIT DIESEL CORP (DTDI)   HAWKINS J S,  MCKENZIE I D;  US6729312-B2   ;  US6786207-B2   TOYOTA JIDOSHA KK (TOYT)   KOJIMA S,  AIKAWA H;  US6880534-B2   HONDA MOTOR CO LTD (HOND)   YOSHIKI K,  IMAMURA K,  KOHNO R,  SHIKAMA M,  TERAKADO T,  MAEDA K,  WAKUI M;  US6971375-B2   DENSO CORP (NPDE);  NIPPON SOKEN INC (NSOK)   AMANO N,  KAWANO T,  INAGAKI K,  KOYAMA N,  KANO M,  TAKAKURA S,  YAMADA Y;  US7007684-B2   NIPPON SOKEN INC (NSOK);  TOYOTA JIDOSHA KK (TOYT)   ITAKURA H,  KAWANO T,  KATO N,  KASASHIMA K,  KANEKO R;  US7017558-B2   OSANAI A (OSAN-Individual)   OSANAI A;  US7069916-B2