Inventor
ONOUE AKIHIRO
JP61 patents
⚠️ This page may combine multiple inventors who share the name “ONOUE AKIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANSHIN KOGYO KK
35 patentsUS6123591ASep 26, 2000
Shifting mechanism for marine transmission
SANSHIN KOGYO KK27 citations93
US5224888AJul 6, 1993
Boat propulsion assembly
SANSHIN KOGYO KK37 citations93
US5088945AFeb 18, 1992
Marine propulsion unit
SANSHIN KOGYO KK24 citations93
US5051102ASep 24, 1991
Astern-ahead switching device for marine propulsion unit
SANSHIN KOGYO KK28 citations93
US5839928ANov 24, 1998
Shifting mechanism for outboard drive
SANSHIN KOGYO KK18 citations92
US5449306ASep 12, 1995
Shifting mechanism for outboard drive
SANSHIN KOGYO KK26 citations92
US5050461ASep 24, 1991
Assist device for shift operation of marine propulsion system
SANSHIN KOGYO KK32 citations92
US4637802AJan 20, 1987
Twin outboard drive for watercraft
SANSHIN KOGYO KK42 citations92
US6547613B1Apr 15, 2003
Marine drive transmission
SANSHIN KOGYO KK22 citations89
US5403218AApr 4, 1995
Shifting mechanism for outboard drive
SANSHIN KOGYO KK28 citations86
US6322407B1Nov 27, 2001
Marine drive transmission
SANSHIN KOGYO KK16 citations84
US6298815B1Oct 9, 2001
Induction system for engine of outboard motor
SANSHIN KOGYO KK18 citations84
US4917639AApr 17, 1990
Device for supporting drive shaft of marine propulsion unit
SANSHIN KOGYO KK22 citations82
US4689027AAug 25, 1987
Transmission mechanism for a marine outboard drive
SANSHIN KOGYO KK20 citations81
US6287160B1Sep 11, 2001
Tilt and trim arrangement for marine propulsion
SANSHIN KOGYO KK13 citations74
US5520559AMay 28, 1996
Shifting mechanism for outboard drive
SANSHIN KOGYO KK13 citations74
US5514014AMay 7, 1996
Outboard drive transmission
SANSHIN KOGYO KK14 citations74
US5505641AApr 9, 1996
Power tilt, power steering device
SANSHIN KOGYO KK16 citations74
US5472361ADec 5, 1995
Marine propulsion unit
SANSHIN KOGYO KK18 citations74
US5310370AMay 10, 1994
Thrust supporting structure for a marine propulsion unit
SANSHIN KOGYO KK8 citations74
US5266060ANov 30, 1993
Steering device for marine propulsion device
SANSHIN KOGYO KK7 citations74
US5184967AFeb 9, 1993
Thrust flange lubricating structure of marine propulsion unit
SANSHIN KOGYO KK8 citations74
US5059144AOct 22, 1991
Ahead/astern shifting device for marine propulsion unit
SANSHIN KOGYO KK11 citations74
US4820211AApr 11, 1989
Driveshaft supporting device for marine propulsion engine
SANSHIN KOGYO KK11 citations74
US5330375AJul 19, 1994
Steering system for marine propulsion unit
SANSHIN KOGYO KK7 citations73
US4957460ASep 18, 1990
Thrust bearing arrangement for marine outboard drives
SANSHIN KOGYO KK10 citations73
US4990111AFeb 5, 1991
Tilt device for marine propulsion unit
SANSHIN KOGYO KK13 citations72
US6071157AJun 6, 2000
Trimming device for marine propulsion unit
SANSHIN KOGYO KK15 citations70
US6446594B2Sep 10, 2002
Component mounting arrangement for engine
SANSHIN KOGYO KK3 citations63
US5328394AJul 12, 1994
Steering system for marine propulsion unit
SANSHIN KOGYO KK6 citations63
US5026309AJun 25, 1991
Casing arrangement for marine propulsion unit
SANSHIN KOGYO KK3 citations63
US5004439AApr 2, 1991
Speed detecting device for marine propulsion unit
SANSHIN KOGYO KK5 citations63
US4923417AMay 8, 1990
Propeller housing retainer for marine propulsion device
SANSHIN KOGYO KK2 citations63
US6620006B2Sep 16, 2003
Tilt and trim control and cowling arrangement for marine drive
SANSHIN KOGYO KK4 citations62
US6283807B1Sep 4, 2001
Anti-splash device for marine outboard drive
SANSHIN KOGYO KK3 citations61
YAMAHA MOTOR CO LTD
13 patentsUS10435127B2Oct 8, 2019
Vessel propulsion system and vessel including the same
YAMAHA MOTOR CO LTD16 citations94
US9440724B2Sep 13, 2016
Boat maneuvering system
YAMAHA MOTOR CO LTD21 citations92
US5554057ASep 10, 1996
Exhaust treatment for outboard motor
YAMAHA MOTOR CO LTD42 citations89
US12252225B2Mar 18, 2025
Apparatus for judging abnormality of marine vessel, method for judging abnormality of marine vessel, and marine vessel
YAMAHA MOTOR CO LTD2 citations73
US10202181B2Feb 12, 2019
Electric propulsion device
YAMAHA MOTOR CO LTD3 citations72
US9896176B2Feb 20, 2018
Marine propulsion device
YAMAHA MOTOR CO LTD5 citations72
US9688374B2Jun 27, 2017
Boat maneuvering system
YAMAHA MOTOR CO LTD2 citations72
US9663211B2May 30, 2017
Boat maneuvering system
YAMAHA MOTOR CO LTD6 citations72
US11208189B2Dec 28, 2021
Outboard motor and marine vessel
YAMAHA MOTOR CO LTD2 citations71
US11420716B2Aug 23, 2022
Vessel propulsion system and vessel including the same
YAMAHA MOTOR CO LTD0 citations63
US11161584B2Nov 2, 2021
Outboard motor
YAMAHA MOTOR CO LTD1 citations62
US12509196B2Dec 30, 2025
Marine vessel maneuvering system and marine vessel
YAMAHA MOTOR CO LTD0 citations61
US12436539B2Oct 7, 2025
Boat and lateral movement control method for boat
YAMAHA MOTOR CO LTD0 citations61
YAMAHA MARINE KK
1 patentKAO CORP
1 patentShowing the top 50 of 61 patents by PatentIndex Score.