Inventor
NAKAGAWA MASAYUKI
JP76 patents
⚠️ This page may combine multiple inventors who share the name “NAKAGAWA MASAYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOYODA GOSEI KK
38 patentsUS6983773B1Jan 10, 2006
Oil feeder of fuel tank
TOYODA GOSEI KK55 citations96
US6745914B2Jun 8, 2004
Cap device
TOYODA GOSEI KK62 citations96
US6408867B2Jun 25, 2002
Fuel cutoff valve and fuel tank
TOYODA GOSEI KK61 citations95
US5829483ANov 3, 1998
Hose
TOYODA GOSEI KK79 citations95
US7281640B2Oct 16, 2007
Cap device
TOYODA GOSEI KK22 citations93
US7025222B2Apr 11, 2006
Cap device
TOYODA GOSEI KK30 citations93
US6681817B2Jan 27, 2004
Fueling device
TOYODA GOSEI KK21 citations93
US6568553B2May 27, 2003
Tank cap and tank cap apparatus
TOYODA GOSEI KK32 citations93
US6474376B2Nov 5, 2002
Fueling device
TOYODA GOSEI KK26 citations93
US6308852B1Oct 30, 2001
Tank cap and fuel tank with the same
TOYODA GOSEI KK38 citations93
US6003709ADec 21, 1999
Fuel cap
TOYODA GOSEI KK22 citations93
US5996829ADec 7, 1999
Fuel tank cap
TOYODA GOSEI KK20 citations93
US5992669ANov 30, 1999
Fuel tank cap and method of manufacturing the same
TOYODA GOSEI KK25 citations93
US5975328ANov 2, 1999
Fuel tank cap
TOYODA GOSEI KK24 citations93
US6978802B2Dec 27, 2005
Fuel tank and manufacturing method thereof
TOYODA GOSEI KK32 citations92
US6895998B2May 24, 2005
Valve attached to fuel tank
TOYODA GOSEI KK23 citations92
US6679282B2Jan 20, 2004
Valve attached to fuel tank
TOYODA GOSEI KK32 citations92
US5983950ANov 16, 1999
Hose structure and method of manufacturing the same
TOYODA GOSEI KK33 citations92
US5850851ADec 22, 1998
Check valve and fuel tank utilizing the same
TOYODA GOSEI KK22 citations92
US5803131ASep 8, 1998
Fuel filler pipe
TOYODA GOSEI KK39 citations92
US6286539B1Sep 11, 2001
Fuel cutoff valve and fuel tank with fuel cutoff valve mounted thereon
TOYODA GOSEI KK54 citations91
US7320769B2Jan 22, 2008
Manufacturing method of fuel tank welding joint
TOYODA GOSEI KK14 citations84
US7278547B2Oct 9, 2007
Cap device
TOYODA GOSEI KK13 citations84
US7048138B2May 23, 2006
Cap device
TOYODA GOSEI KK15 citations84
US6913162B2Jul 5, 2005
Tank cap and tank cap apparatus
TOYODA GOSEI KK13 citations84
US6793091B2Sep 21, 2004
Tank cap
TOYODA GOSEI KK17 citations84
US6543833B2Apr 8, 2003
Cap device
TOYODA GOSEI KK14 citations84
US6012599AJan 11, 2000
Fuel tank
TOYODA GOSEI KK16 citations84
US5996830ADec 7, 1999
Fuel tank cap
TOYODA GOSEI KK18 citations84
US5269837ADec 14, 1993
Evaporation loss control device
TOYODA GOSEI KK20 citations80
US6705483B2Mar 16, 2004
Fuel tank fueling device having cam mechanism
TOYODA GOSEI KK11 citations74
US6470911B2Oct 29, 2002
Check valve and fuel tank with check valve attached thereto
TOYODA GOSEI KK12 citations74
US6321801B1Nov 27, 2001
Fuel supply apparatus for fuel tank
TOYODA GOSEI KK11 citations74
US6296014B1Oct 2, 2001
Check valve and fuel tank with check valve attached thereto
TOYODA GOSEI KK14 citations74
US6202882B1Mar 20, 2001
Structure of fuel pouring inlet
TOYODA GOSEI KK7 citations74
US6138852AOct 31, 2000
Fuel tank
TOYODA GOSEI KK8 citations74
US5992670ANov 30, 1999
Fuel tank cap and method of manufacturing the same
TOYODA GOSEI KK14 citations74
US5992672ANov 30, 1999
Fuel tank cap
TOYODA GOSEI KK14 citations74
TOA MEDICAL ELECTRONICS
3 patentsKONISHIROKU PHOTO IND
2 patentsYOKOGAWA ELECTRIC CORP
2 patentsTOYODA GOESI CO LTD
1 patentHITACHI LTD
1 patentNAKAGAWA MASAYUKI
1 patentKONICA CORP
1 patent(unassigned)
1 patentShowing the top 50 of 76 patents by PatentIndex Score.