Inventor

OZAWA SHIGEYUKI

JP58 patents

⚠️ This page may combine multiple inventors who share the name “OZAWA SHIGEYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

YAMAHA MOTOR CO LTD

30 patents

US6733350B2May 11, 2004

Engine output control for watercraft

YAMAHA MOTOR CO LTD65 citations96

US5902158AMay 11, 1999

Small watercraft

YAMAHA MOTOR CO LTD40 citations96

US6250976B1Jun 26, 2001

Exhaust emission control for watercraft

YAMAHA MOTOR CO LTD17 citations93

US6120335ASep 19, 2000

Catalytic exhaust system for watercraft

YAMAHA MOTOR CO LTD29 citations93

US6019090AFeb 1, 2000

Engine control for engine powering a watercraft

YAMAHA MOTOR CO LTD29 citations93

US5788547AAug 4, 1998

Exhaust pipe cooling system for watercraft

YAMAHA MOTOR CO LTD34 citations93

US6024068AFeb 15, 2000

Watercraft engine control

YAMAHA MOTOR CO LTD27 citations92

US5797775AAug 25, 1998

Engine control system for a watercraft

YAMAHA MOTOR CO LTD26 citations92

US7798872B2Sep 21, 2010

Water jet propulsion boat

YAMAHA MOTOR CO LTD8 citations84

US6244915B1Jun 12, 2001

Fuel system and arrangement for small watercraft

YAMAHA MOTOR CO LTD18 citations84

US6022253AFeb 8, 2000

Injection system for small watercraft

YAMAHA MOTOR CO LTD17 citations84

US6022252AFeb 8, 2000

Breather arrangement for watercraft engine

YAMAHA MOTOR CO LTD18 citations84

US6524150B2Feb 25, 2003

Exhaust emission control for watercraft

YAMAHA MOTOR CO LTD12 citations74

US6478644B1Nov 12, 2002

Exhaust pipe cooling system for watercraft

YAMAHA MOTOR CO LTD11 citations74

US6425789B2Jul 30, 2002

Small watercraft

YAMAHA MOTOR CO LTD6 citations74

US6279546B1Aug 28, 2001

Watercraft fuel supply system

YAMAHA MOTOR CO LTD11 citations74

US6250980B1Jun 26, 2001

Injection system for watercraft engine

YAMAHA MOTOR CO LTD7 citations74

US6200178B1Mar 13, 2001

Small watercraft

YAMAHA MOTOR CO LTD7 citations74

US6095876AAug 1, 2000

Engine component layout

YAMAHA MOTOR CO LTD14 citations74

US6068530AMay 30, 2000

Oxygen sensor arrangement for watercraft

YAMAHA MOTOR CO LTD13 citations74

US5954553ASep 21, 1999

Watercraft with catalytic exhaust system

YAMAHA MOTOR CO LTD11 citations74

US5882236AMar 16, 1999

Exhaust system for small watercraft

YAMAHA MOTOR CO LTD10 citations74

US5830022ANov 3, 1998

Catalytic exhaust system for watercraft

YAMAHA MOTOR CO LTD7 citations73

US5787847AAug 4, 1998

Oil supply system for a planing type boat

YAMAHA MOTOR CO LTD15 citations73

US7886586B2Feb 15, 2011

Abnormality detection device of fuel pump

YAMAHA MOTOR CO LTD5 citations63

US6238258B1May 29, 2001

Direct air fuel injected watercraft engine

YAMAHA MOTOR CO LTD5 citations63

US6213825B1Apr 10, 2001

Fuel injection system for small watercraft

YAMAHA MOTOR CO LTD4 citations63

US6123592ASep 26, 2000

Fuel injection system for watercraft engine

YAMAHA MOTOR CO LTD3 citations63

US11498647B2Nov 15, 2022

Control system for small marine vessel

YAMAHA MOTOR CO LTD0 citations58

US8016989B2Sep 13, 2011

Exhaust gas sensor

YAMAHA MOTOR CO LTD2 citations54

SANSHIN KOGYO KK

11 patents

US6010378AJan 4, 2000

Watercraft catalytic exhaust system

SANSHIN KOGYO KK21 citations93

US5562509AOct 8, 1996

Watercraft catalytic exhaust system

SANSHIN KOGYO KK24 citations93

US5531620AJul 2, 1996

Water-cooled exhaust system for watercraft

SANSHIN KOGYO KK27 citations93

US5911609AJun 15, 1999

Watercraft exhaust system

SANSHIN KOGYO KK31 citations92

US5676575AOct 14, 1997

Exhaust system for watercraft

SANSHIN KOGYO KK18 citations91

US5702276ADec 30, 1997

Watercraft catalytic exhaust system

SANSHIN KOGYO KK19 citations84

US6565399B2May 20, 2003

Watercraft catalytic exhaust system

SANSHIN KOGYO KK5 citations74

US5632660AMay 27, 1997

Watercraft catalytic exhaust system

SANSHIN KOGYO KK9 citations74

US5372526ADec 13, 1994

Drive bearing lubricating device for water injection propulsion vessel

SANSHIN KOGYO KK18 citations74

US5366397ANov 22, 1994

Water jet propulsion unit

SANSHIN KOGYO KK17 citations74

US6517394B2Feb 11, 2003

Engine control system for watercraft

SANSHIN KOGYO KK5 citations63

YAMAHA MARINE KK

4 patents

US6848956B2Feb 1, 2005

Engine control system for watercraft

YAMAHA MARINE KK30 citations93

US7458369B2Dec 2, 2008

Supercharger lubrication structure

YAMAHA MARINE KK10 citations84

US7404293B2Jul 29, 2008

Intake system for supercharged engine

YAMAHA MARINE KK13 citations84

US7343906B2Mar 18, 2008

Water jet propulsion boat

YAMAHA MARINE KK12 citations84

SANSHIN KOGYO KABUSHUKI KAISHA

1 patent

US5556314ASep 17, 1996

Exhaust system for watercraft

SANSHIN KOGYO KABUSHUKI KAISHA26 citations90

NEC CORP

1 patent

US5251309AOct 5, 1993

System for measuring the efficiency of accessing vector elements using interelement distance of vector data or bank conflicts

NEC CORP25 citations88

SANSHIN KOGYO KABUSHISKI KAISH

1 patent

US5531619AJul 2, 1996

Control device for marine propulsion unit engine

SANSHIN KOGYO KABUSHISKI KAISH9 citations69

FUJINO KENICHI

1 patent

US8133083B2Mar 13, 2012

Water jet propulsion boat

FUJINO KENICHI4 citations61

MOROTA KOICHIRO

1 patent

US8845371B2Sep 30, 2014

Water jet propulsion watercraft

MOROTA KOICHIRO2 citations57

Showing the top 50 of 58 patents by PatentIndex Score.