Inventor
Eifu Watanabe
Inventor
Hamamatsu, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F02Bprimary
F02BInternal-combustion piston engines32%
B63HMarine propulsion or steering25%
Y10TTechnical subjects covered by former us classification11%
F01PCooling of machines or engines in general7%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof7%
F01MLubricating of machines or engines in general4%
F02FCylinders, pistons or casings, for combustion engines4%
F16FSprings4%
G05GControl devices or systems insofar as characterised by mechanical features only4%
Y02TClimate change mitigation technologies related to transportation4%
PatentTitleYear
8,077,056'Immobilizer receiver for outboard motor'20117,665,381'Control device for marine propulsion system'20107,507,130'Remote control device for a boat'20097,452,254'Remote control unit for a boat'20085,074,812'Torsional damper for marine propulsion engine'19915,025,763'Latching mechanism for outboard motor cowling'19915,020,483'Intake system for two cycle internal combustion engine'19914,952,180'Cowling for outboard motor'19904,828,519'Outboard motors'19894,764,134'Trimming device for marine propulsion unit'19884,698,037'Protective cowling arrangement for outboard motor'19874,521,201'Steering device for an outboard motor'19854,498,875'Outboard motor'19854,452,194'Outboard motor'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–1991Patents assigned to SANSHIN KOGYO KK (10)· patent assignee history
1984–2011Patents assigned to YAMAHA MOTOR CO LTD (5)· patent assignee history
1984–2010Based in Hamamatsu, JP· patent location history
2008–2009Patents assigned to YAMAHA MARINE KK (2)· patent assignee history
2011Patents assigned to WATANABE EIFU (1)· patent assignee history
2011Based in Shizuoka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SANSHIN KOGYO KK | 10 | 1984–1991 |
| YAMAHA MOTOR CO LTD | 5 | 1984–2011 |
| YAMAHA MARINE KK | 2 | 2008–2009 |
| WATANABE EIFUself | 1 | 2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hamamatsu, JP | 13 | 1984–2010 |
| Shizuoka, JP | 1 | 2011 |