Inventor · disambiguated record
Eiki Watanabe
Also filed as: ANZAI NOBUO · TANAHASHI TOORU · WATANABE EIKI
35 granted patents·813 citations·filing 1975–2020
98Inventor score
Top patents by PatentIndex Score
35 records- 0198US4979593AElevator controllerMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Dec 25, 1990·111 cites·17 claims
- 0294US4666020AControl apparatus for elevatorMITSUBISHI ELECTRIC CORP·Filed 1986·Granted May 19, 1987·67 cites·6 claims
- 0394US4506766AMethod and apparatus for fault time operating of an elevator _MITSUBISHI ELECTRIC CORP·Filed 1984·Granted Mar 26, 1985·50 cites·9 claims
- 0484US4935684AControl system for induction motorMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Jun 19, 1990·41 cites·2 claims
- 0584US4503940AVariable-voltage variable-frequency elevator control apparatusMITSUBISHI ELECTRIC CORP·Filed 1984·Granted Mar 12, 1985·36 cites·10 claims
- 0682US4748394AControl apparatus for escalatorMITSUBISHI ELECTRIC CORP·Filed 1986·Granted May 31, 1988·34 cites·7 claims
- 0782US4678063AApparatus for controlling an elevatorMITSUBISHI ELECTRIC CORP·Filed 1985·Granted Jul 7, 1987·40 cites·5 claims
- 0880US4567419AControl apparatus for elevatorMITSUBISHI ELECTRIC CORP·Filed 1984·Granted Jan 28, 1986·26 cites·15 claims
- 0979US4756398APassenger conveyor apparatusMITSUBISHI ELECTRIC CORP·Filed 1986·Granted Jul 12, 1988·33 cites·4 claims
- 1079US4271931AElevator control deviceMITSUBISHI ELECTRIC CORP·Filed 1979·Granted Jun 9, 1981·26 cites·10 claims
- 1177US5038894ADrive control apparatusMITSUBISHI ELECTRIC CORP·Filed 1989·Granted Aug 13, 1991·22 cites·11 claims
- 1275US4434873AElectric elevator car driving deviceMITSUBISHI ELECTRIC CORP·Filed 1982·Granted Mar 6, 1984·24 cites·10 claims
- 1374US5547059ALinear motor elevator systemMITSUBISHI ELECTRIC CORP·Filed 1994·Granted Aug 20, 1996·27 cites·8 claims
- 1474US4269286ASpeed control apparatus for elevator systemMITSUBISHI ELECTRIC CORP·Filed 1979·Granted May 26, 1981·22 cites·5 claims
- 1573US4738346ADriving unit for passenger conveyor systemMITSUBISHI ELECTRIC CORP·Filed 1986·Granted Apr 19, 1988·31 cites·6 claims
- 1667US4133413AElevator safety deviceMITSUBISHI ELECTRIC CORP·Filed 1977·Granted Jan 9, 1979·16 cites·5 claims
- 1766US4337846AElevator relevelling control apparatusMITSUBISHI ELECTRIC CORP·Filed 1980·Granted Jul 6, 1982·18 cites·15 claims
- 1863US4520906AControl apparatus for elevatorMITSUBISHI ELECTRIC CORP·Filed 1984·Granted Jun 4, 1985·14 cites·15 claims
- 1963US4287551AElevator traction machineMITSUBISHI ELECTRIC CORP·Filed 1979·Granted Sep 1, 1981·17 cites·13 claims
- 2063US4284175AEmergency stop apparatus for electric elevatorsMITSUBISHI ELECTRIC CORP·Filed 1979·Granted Aug 18, 1981·14 cites·2 claims
- 2159US5131507AHydraulic elevator control apparatus using VVVF to determine the electric drive motor rotational speedMITSUBISHI ELECTRIC CORP·Filed 1990·Granted Jul 21, 1992·17 cites·7 claims
- 2258US4789049ASignal transmitting equipment for elevatorMITSUBISHI ELECTRIC CORP·Filed 1988·Granted Dec 6, 1988·18 cites·14 claims
- 2357US4516665AElevator control systemMITSUBISHI ELECTRIC CORP·Filed 1984·Granted May 14, 1985·22 cites·12 claims
- 2455US4399892AThyristor Leonard type elevator control systemMITSUBISHI ELECTRIC CORP·Filed 1981·Granted Aug 23, 1983·13 cites·5 claims
- 2554US4086983AElevator control systemMITSUBISHI ELECTRIC CORP·Filed 1975·Granted May 2, 1978·11 cites·2 claims
- 2650US4194594AElevator landing control apparatusMITSUBISHI ELECTRIC CORP·Filed 1978·Granted Mar 25, 1980·9 cites·2 claims
- 2749US4209082AElevator control apparatusMITSUBISHI ELECTRIC CORP·Filed 1977·Granted Jun 24, 1980·9 cites·1 claims
- 2849US4165801AStatic Leonard systemMITSUBISHI ELECTRIC CORP·Filed 1977·Granted Aug 28, 1979·9 cites·13 claims
- 2948US4642474AElevator rescue apparatus during stoppage of power supplyMITSUBISHI ELECTRIC CORP·Filed 1986·Granted Feb 10, 1987·11 cites·6 claims
- 3047US4027745AElevator speed control systemMITSUBISHI ELECTRIC CORP·Filed 1975·Granted Jun 7, 1977·8 cites·8 claims
- 3139US12073515B2Information processing apparatus, display system, display method, and non-transitory computer readable medium storing programNEC CORP·Filed 2020·Granted Aug 27, 2024·0 cites·5 claims
- 3239US4711335ADisplay device for an escalatorMITSUBISHI ELECTRIC CORP·Filed 1986·Granted Dec 8, 1987·7 cites·5 claims
- 3338US4288729AControl system for D.C. electric motorMITSUBISHI ELECTRIC CORP·Filed 1980·Granted Sep 8, 1981·5 cites·5 claims
- 3437US4238005ADeceleration controlling apparatus for elevatorMITSUBISHI ELECTRIC CORP·Filed 1978·Granted Dec 9, 1980·4 cites·5 claims
- 3531US4293889ADevice for grounding an elevator winderMITSUBISHI ELECTRIC CORP·Filed 1979·Granted Oct 6, 1981·1 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →