Inventor · disambiguated record
Ryoji Nakahama
Also filed as: NAKAHAMA RYOJI
29 granted patents·602 citations·filing 1982–1999
97Inventor score
Files withSANSHIN KOGYO KK21YAMAHA MOTOR CO LTD5MITSUBISHI MOTORS CORP2SANSHIN KOBYO KABUSHIKI KAISHA1
Top patents by PatentIndex Score
29 records- 0195US5352137AAutomatic position controller for marine propulsionsSANSHIN KOGYO KK·Filed 1991·Granted Oct 4, 1994·48 cites·23 claims
- 0292US4559018AOutboard motorYAMAHA MOTOR CO LTD·Filed 1983·Granted Dec 17, 1985·62 cites·26 claims
- 0390US4570776ADetent mechanism for clutchesSANSHIN KOGYO KK·Filed 1983·Granted Feb 18, 1986·42 cites·32 claims
- 0486US4527441AShifting apparatus for a propelling unit for a vesselYAMAHA MOTOR CO LTD·Filed 1983·Granted Jul 9, 1985·27 cites·10 claims
- 0583US4734065ASystem for stable running of marine propulsionsSANSHIN KOGYO KK·Filed 1986·Granted Mar 29, 1988·27 cites·16 claims
- 0682US4850911APower transmission device for inboard/outboard systemSANSHIN KOGYO KK·Filed 1988·Granted Jul 25, 1989·24 cites·10 claims
- 0779US4682961ATilt device for boat propulsion machineSANSHIN KOGYO KK·Filed 1985·Granted Jul 28, 1987·23 cites·25 claims
- 0878US4811717ADevice driving injection pump for fuel-injection engineSANSHIN KOGYO KK·Filed 1987·Granted Mar 14, 1989·24 cites·22 claims
- 0978US4673358AMounting arrangement for outboard driveSANSHIN KOGYO KK·Filed 1985·Granted Jun 16, 1987·22 cites·46 claims
- 1077US6050631AImpact energy absorbing structure for vehicle cabinMITSUBISHI MOTORS CORP·Filed 1995·Granted Apr 18, 2000·42 cites·17 claims
- 1176US4557696ATilt mechanism for marine propulsion deviceSANSHIN KOGYO KK·Filed 1983·Granted Dec 10, 1985·20 cites·18 claims
- 1274US6126231AImpact energy absorbing structure for vehicle cabinMITSUBISHI MOTORS CORP·Filed 1999·Granted Oct 3, 2000·38 cites·12 claims
- 1371US4784625ATilt lock mechanism for marine propulsion deviceSANSHIN KOBYO KABUSHIKI KAISHA·Filed 1987·Granted Nov 15, 1988·19 cites·16 claims
- 1466US4781631ASupporting device for marine propulsion apparatusSANSHIN KOGYO KK·Filed 1987·Granted Nov 1, 1988·14 cites·9 claims
- 1566US4421490AExhaust silencer structure for outboard enginesYAMAHA MOTOR CO LTD·Filed 1982·Granted Dec 20, 1983·30 cites·7 claims
- 1665US4726799AOutboard motorSANSHIN KOGYO KK·Filed 1986·Granted Feb 23, 1988·17 cites·7 claims
- 1762US4551104ATilt lock mechanism for marine propulsion deviceSANSHIN KOGYO KK·Filed 1984·Granted Nov 5, 1985·14 cites·8 claims
- 1861US5759073ADual propeller system for marine driveSANSHIN KOGYO KK·Filed 1996·Granted Jun 2, 1998·13 cites·32 claims
- 1961US4631035AHydraulic tilt device for marine propulsion unitSANSHIN KOGYO KK·Filed 1985·Granted Dec 23, 1986·13 cites·17 claims
- 2060US4545769ATilt locking system for boat propellersYAMAHA MOTOR CO LTD·Filed 1983·Granted Oct 8, 1985·13 cites·16 claims
- 2155US4615683AOutboard motorSANSHIN KOGYO KK·Filed 1984·Granted Oct 7, 1986·11 cites·17 claims
- 2254US4575342ATilt lock mechanism for marine propulsion deviceSANSHIN KOGYO KK·Filed 1983·Granted Mar 11, 1986·11 cites·30 claims
- 2354US4521202ATilt locking system for ship propellersYAMAHA MOTOR CO LTD·Filed 1983·Granted Jun 4, 1985·11 cites·14 claims
- 2450US4931027ATilting device for outboard engineSANSHIN KOGYO KK·Filed 1984·Granted Jun 5, 1990·9 cites·36 claims
- 2544US4767365AShifting device for inboard-outboard driveSANSHIN KOGYO KK·Filed 1987·Granted Aug 30, 1988·6 cites·21 claims
- 2642US4909226ADevice driving injection pump for fuel-injection engineSANSHIN KOGYO KK·Filed 1988·Granted Mar 20, 1990·6 cites·11 claims
- 2741US5184967AThrust flange lubricating structure of marine propulsion unitSANSHIN KOGYO KK·Filed 1991·Granted Feb 9, 1993·8 cites·20 claims
- 2835US5207170AMarine propulsion unit control systemSANSHIN KOGYO KK·Filed 1991·Granted May 4, 1993·5 cites·18 claims
- 2933US4795001ATwo-cycle fuel-injection engineSANSHIN KOGYO KK·Filed 1988·Granted Jan 3, 1989·3 cites·14 claims
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