Inventor
KOYANAGI TOMOYOSHI
JP23 patents
⚠️ This page may combine multiple inventors who share the name “KOYANAGI TOMOYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA MOTOR CO LTD
19 patentsUS6058873AMay 9, 2000
Hull construction for small watercraft
YAMAHA MOTOR CO LTD21 citations92
US5752867AMay 19, 1998
Small watercraft seat
YAMAHA MOTOR CO LTD22 citations92
US5607332AMar 4, 1997
Control for jet powered watercraft
YAMAHA MOTOR CO LTD36 citations92
US5586922ADec 24, 1996
Watercraft
YAMAHA MOTOR CO LTD31 citations92
US5494464AFeb 27, 1996
Control for jet powered watercraft
YAMAHA MOTOR CO LTD42 citations92
US5449305ASep 12, 1995
Watercraft
YAMAHA MOTOR CO LTD20 citations92
US5429533AJul 4, 1995
Control for watercraft
YAMAHA MOTOR CO LTD28 citations92
US5123372AJun 23, 1992
Ladder arrangement for a watercraft
YAMAHA MOTOR CO LTD50 citations92
US6471558B1Oct 29, 2002
Ventilation system for watercraft
YAMAHA MOTOR CO LTD19 citations90
US7320251B2Jan 22, 2008
Load detector and transport equipment including the same
YAMAHA MOTOR CO LTD9 citations84
US6116182ASep 12, 2000
Hull for personal watercraft
YAMAHA MOTOR CO LTD16 citations84
US5879211AMar 9, 1999
Watercraft component layout
YAMAHA MOTOR CO LTD17 citations84
USD392936SMar 31, 1998
Ride plate
YAMAHA MOTOR CO LTD8 citations74
US5376028ADec 27, 1994
Jet propelled watercraft
YAMAHA MOTOR CO LTD9 citations74
US11755035B2Sep 12, 2023
Unmanned aerial vehicle control system and unmanned aerial vehicle control method
YAMAHA MOTOR CO LTD2 citations73
US5586921ADec 24, 1996
Watercraft
YAMAHA MOTOR CO LTD8 citations73
US11987340B2May 21, 2024
Hull behavior control system and marine vessel
YAMAHA MOTOR CO LTD6 citations68
US11964742B2Apr 23, 2024
Hull behavior control system and marine vessel
YAMAHA MOTOR CO LTD5 citations68
US5873322AFeb 23, 1999
Engine start system for a small boat
YAMAHA MOTOR CO LTD6 citations63
YAMAHA MARINE KK
3 patentsUS7430466B2Sep 30, 2008
Steering force detection device for steering handle of vehicle
YAMAHA MARINE KK5 citations63
US7337739B2Mar 4, 2008
Steering-force detection device for steering handle of vehicle
YAMAHA MARINE KK4 citations63
US7053782B2May 30, 2006
Fuel overflow alarm system
YAMAHA MARINE KK5 citations62