Inventor
NANAMI MASAYOSHI
JP59 patents
⚠️ This page may combine multiple inventors who share the name “NANAMI MASAYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA MOTOR CO LTD
29 patentsUS6015320AJan 18, 2000
Oil cooler for watercraft
YAMAHA MOTOR CO LTD51 citations96
US5951343ASep 14, 1999
Engine lubricating system for watercraft
YAMAHA MOTOR CO LTD57 citations96
US5902158AMay 11, 1999
Small watercraft
YAMAHA MOTOR CO LTD40 citations96
US5839930ANov 24, 1998
Engine lubricating system for watercraft
YAMAHA MOTOR CO LTD54 citations96
US6578508B2Jun 17, 2003
Small watercraft hull and engine arrangement
YAMAHA MOTOR CO LTD21 citations93
US6544084B1Apr 8, 2003
Induction system for small watercraft
YAMAHA MOTOR CO LTD18 citations93
US6447351B1Sep 10, 2002
Vapor system arrangement for marine engine
YAMAHA MOTOR CO LTD23 citations93
US6322409B1Nov 27, 2001
Injection system for personal watercraft
YAMAHA MOTOR CO LTD23 citations93
US6213827B1Apr 10, 2001
Watercraft engine exhaust system
YAMAHA MOTOR CO LTD37 citations93
US6089932AJul 18, 2000
Small watercraft
YAMAHA MOTOR CO LTD19 citations93
US6062922AMay 16, 2000
Watercraft propulsion system
YAMAHA MOTOR CO LTD22 citations93
US5885121AMar 23, 1999
Cooling system for watercraft engine
YAMAHA MOTOR CO LTD23 citations93
US7182656B2Feb 27, 2007
Control system for small watercraft
YAMAHA MOTOR CO LTD11 citations92
US6419531B1Jul 16, 2002
Control system for small watercraft
YAMAHA MOTOR CO LTD14 citations92
US6554664B1Apr 29, 2003
Cooling system for watercraft
YAMAHA MOTOR CO LTD14 citations84
US6497596B1Dec 24, 2002
Oil cooler for watercraft
YAMAHA MOTOR CO LTD14 citations84
US6648702B2Nov 18, 2003
Control system for small watercraft
YAMAHA MOTOR CO LTD12 citations82
US6394860B1May 28, 2002
Lubrication system for small watercraft
YAMAHA MOTOR CO LTD11 citations82
US6461207B1Oct 8, 2002
Lubrication system for small watercraft
YAMAHA MOTOR CO LTD8 citations74
US6425789B2Jul 30, 2002
Small watercraft
YAMAHA MOTOR CO LTD6 citations74
US6386931B1May 14, 2002
Engine mount for watercraft
YAMAHA MOTOR CO LTD10 citations74
US6346019B1Feb 12, 2002
Exhaust system for engine powering a watercraft
YAMAHA MOTOR CO LTD10 citations74
US6279546B1Aug 28, 2001
Watercraft fuel supply system
YAMAHA MOTOR CO LTD11 citations74
US6200178B1Mar 13, 2001
Small watercraft
YAMAHA MOTOR CO LTD7 citations74
US6190221B1Feb 20, 2001
Crankcase ventilating system for personal watercraft
YAMAHA MOTOR CO LTD14 citations74
US6183324B1Feb 6, 2001
Exhaust system for engine powering a watercraft
YAMAHA MOTOR CO LTD9 citations74
US6158368ADec 12, 2000
Fuel delivery for small planing watercraft
YAMAHA MOTOR CO LTD11 citations74
US6558214B2May 6, 2003
Engine arrangement for small planing watercraft
YAMAHA MOTOR CO LTD5 citations63
US6533624B1Mar 18, 2003
Four cycle lubricating system for watercraft
YAMAHA MOTOR CO LTD4 citations63
SANSHIN KOGYO KK
20 patentsUS5558549ASep 24, 1996
Four cycle engine for watercraft
SANSHIN KOGYO KK66 citations96
US5031562AJul 16, 1991
Marine steering apparatus
SANSHIN KOGYO KK55 citations96
US5782214AJul 21, 1998
Exhaust timing control for a planing-type boat
SANSHIN KOGYO KK31 citations93
US5683275ANov 4, 1997
Automatic trim control for jet boat
SANSHIN KOGYO KK37 citations93
US5647779AJul 15, 1997
Manifold and water trap system for marine engine
SANSHIN KOGYO KK39 citations93
US5634832AJun 3, 1997
Induction system for four-cycle watercraft engine
SANSHIN KOGYO KK25 citations93
US5618213AApr 8, 1997
Twin impeller drive for jet pump
SANSHIN KOGYO KK20 citations93
US5536187AJul 16, 1996
Outboard jet drive for watercraft
SANSHIN KOGYO KK23 citations93
US5366401ANov 22, 1994
Exhaust cleaning system for marine propulsion engine
SANSHIN KOGYO KK54 citations93
US5350325ASep 27, 1994
Water injection propulsion device
SANSHIN KOGYO KK40 citations93
US5334063AAug 2, 1994
Cooling system for marine propulsion engine
SANSHIN KOGYO KK23 citations93
US4813898AMar 21, 1989
Water jet propulsion
SANSHIN KOGYO KK20 citations82
US4811560AMar 14, 1989
Exhaust system for marine propulsion
SANSHIN KOGYO KK23 citations82
US4773883ASep 27, 1988
Motor for watercrafts
SANSHIN KOGYO KK22 citations82
US6062179AMay 16, 2000
Fuel-increasing system for an engine
SANSHIN KOGYO KK9 citations74
US5853308ADec 29, 1998
Engine and exhaust system for watercraft
SANSHIN KOGYO KK7 citations74
US5800222ASep 1, 1998
Twin jet drive for watercraft
SANSHIN KOGYO KK10 citations74
US5749338AMay 12, 1998
Fuel-increasing system for an engine
SANSHIN KOGYO KK6 citations74
US5338234AAug 16, 1994
Water injection propulsion device
SANSHIN KOGYO KK14 citations74
US4765075AAug 23, 1988
Water propulsion unit of water jet propulsion craft
SANSHIN KOGYO KK19 citations74
YAMAHA MARINE KK
1 patentShowing the top 50 of 59 patents by PatentIndex Score.