Inventor · disambiguated record
Shigeki Kawada
Also filed as: FUJIOKA YOSHIKI · KAWADA SHIGEKI · KOHZAI YOSHINORI
39 granted patents·1,011 citations·filing 1976–1990
98Inventor score
Top patents by PatentIndex Score
39 records- 0193US4406959ARotary electric motorFUJITSU FANUC LTD·Filed 1981·Granted Sep 27, 1983·77 cites·6 claims
- 0290US4543506APermanant magnet field type rotor structure for an electric machineFANUC LTD·Filed 1985·Granted Sep 24, 1985·72 cites·9 claims
- 0389US4631807AMethod of manufacturing a permanent-magnet field rotorFANUC LTD·Filed 1985·Granted Dec 30, 1986·59 cites·7 claims
- 0487US4700097ASynchronous machineFANUC LTD·Filed 1983·Granted Oct 13, 1987·47 cites·7 claims
- 0587US4370614ASpeed and direction detectorFUJITSU FANUC LTD·Filed 1980·Granted Jan 25, 1983·37 cites·4 claims
- 0687US4322671AInduction motor drive apparatusFUJITSU FANUC LTD·Filed 1979·Granted Mar 30, 1982·36 cites·14 claims
- 0786US4456868AMethod and apparatus for controlling AC motorsFANUC LTD·Filed 1982·Granted Jun 26, 1984·49 cites·8 claims
- 0884US4319177AOperation control apparatus for AC motorsFUJITSU FANUC LTD·Filed 1980·Granted Mar 9, 1982·36 cites·9 claims
- 0984US4291265AProtective system for inverter circuit used in driving AC motorsFUJITSU FANUC LTD·Filed 1979·Granted Sep 22, 1981·33 cites·6 claims
- 1083US4485320AWelded stator using non-magnetic bars in specially shaped lamination slotsFANUC LTD·Filed 1982·Granted Nov 27, 1984·42 cites·2 claims
- 1182US4333042ASystem for driving a motor by a pulse width modulation inverterFUJITSU FANUC LTD·Filed 1979·Granted Jun 1, 1982·26 cites·2 claims
- 1279US4426610AInduction motor control systemFUJITSU FANUC LTD·Filed 1982·Granted Jan 17, 1984·31 cites·8 claims
- 1377US4330832ACutter feed rate control systemFUJITSU FANUC LTD·Filed 1980·Granted May 18, 1982·25 cites·6 claims
- 1476US4661736ARotor for a synchronous motorFANUC LTD·Filed 1984·Granted Apr 28, 1987·29 cites·4 claims
- 1576US4361794AInduction motor drive apparatusFUJITSU FANUC LTD·Filed 1980·Granted Nov 30, 1982·27 cites·11 claims
- 1675US4626725ASynchronous rotary machineFANUC LTD·Filed 1985·Granted Dec 2, 1986·36 cites·5 claims
- 1775US4327315AInduction motor drive apparatusFUJITSU FANUC LTD·Filed 1979·Granted Apr 27, 1982·21 cites·2 claims
- 1874US4714852APermanent-magnet field synchronous motorFANUC LTD·Filed 1985·Granted Dec 22, 1987·38 cites·2 claims
- 1973US4353023AOperation control apparatus for AC motorsFUJITSU FANUC LTD·Filed 1980·Granted Oct 5, 1982·24 cites·11 claims
- 2072US4268781ADC Motor drive systemFUJITSU FANUC LTD·Filed 1977·Granted May 19, 1981·19 cites·7 claims
- 2169US4284932ASystem for driving DC motorFUJITSU FANUC LTD·Filed 1979·Granted Aug 18, 1981·16 cites·4 claims
- 2267US4538084AStator of motorFANUC LTD·Filed 1983·Granted Aug 27, 1985·22 cites·4 claims
- 2367US4314191AProtective system for inverter circuit used in driving AC motorsKAWADA SHIGEKI·Filed 1979·Granted Feb 2, 1982·19 cites·5 claims
- 2466US4275342AAbnormality detecting system for DC motor control apparatusFUJITSU FANUC LTD·Filed 1979·Granted Jun 23, 1981·20 cites·4 claims
- 2565US4482854AInverter circuitFANUC LTD·Filed 1982·Granted Nov 13, 1984·16 cites·5 claims
- 2660US4300079ADC Motor control systemFUJITSU FANUC LTD·Filed 1979·Granted Nov 10, 1981·18 cites·8 claims
- 2758US4663550AShaft for an electric motor with DC brakeFANUC LTD·Filed 1983·Granted May 5, 1987·18 cites·4 claims
- 2858US4207504ASpindle control systemFUJITSU FANUC LTD·Filed 1978·Granted Jun 10, 1980·14 cites·1 claims
- 2957US4268782AControl system for a DC motorFUJITSU FANUC LTD·Filed 1978·Granted May 19, 1981·14 cites·5 claims
- 3055US4748360ARotor for a synchronous motorFANUC LTD·Filed 1987·Granted May 31, 1988·19 cites·4 claims
- 3151US4796352AAC servomotor and a method of manufacturing the sameFANUC LTD·Filed 1987·Granted Jan 10, 1989·15 cites·3 claims
- 3249US4614020AMechanism and method for automatically changing toolsFANUC LTD·Filed 1982·Granted Sep 30, 1986·10 cites·10 claims
- 3349US4181875ADrive circuit for a DC motorFUJITSU FANUC LTD·Filed 1977·Granted Jan 1, 1980·10 cites·6 claims
- 3448US5334924AInduction motor control systemFANUC LTD·Filed 1981·Granted Aug 2, 1994·10 cites·6 claims
- 3545US4088933ADC Motor phase control systemFUJITSU FANUC LTD·Filed 1976·Granted May 9, 1978·7 cites·4 claims
- 3642US5281903AMethod for drivingly controlling a variable reluctance type motorFANUC LTD·Filed 1990·Granted Jan 25, 1994·10 cites·6 claims
- 3740US4284939ADevice for detecting opposite phase and open phaseFUJITSU FANUC LTD·Filed 1979·Granted Aug 18, 1981·5 cites·4 claims
- 3831US4518916ASystem for detecting rotational speedFUJITSU FANUC LTD·Filed 1981·Granted May 21, 1985·2 cites·1 claims
- 3931US4471285ASystem for variable speed operation of induction motorsFUJITSU FANUC LTD·Filed 1982·Granted Sep 11, 1984·2 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →