Inventor · disambiguated record
Mitsuhiko Hirota
Also filed as: HIROTA MITSUHIKO · KAWADA SHIGEKI
12 granted patents·205 citations·filing 1977–1991
92Inventor score
Top patents by PatentIndex Score
12 records- 0183US4641069APlural motor changeover control systemFANUC LTD·Filed 1983·Granted Feb 3, 1987·39 cites·9 claims
- 0277US4581569AAC motor control apparatusFANUC LTD·Filed 1983·Granted Apr 8, 1986·27 cites·6 claims
- 0373US4928052APower supply regenerating circuitFANUC LTD·Filed 1988·Granted May 22, 1990·28 cites·5 claims
- 0472US4268781ADC Motor drive systemFUJITSU FANUC LTD·Filed 1977·Granted May 19, 1981·19 cites·7 claims
- 0562US4499414AAC Motor control methodFANUC LTD·Filed 1982·Granted Feb 12, 1985·13 cites·5 claims
- 0658US4207504ASpindle control systemFUJITSU FANUC LTD·Filed 1978·Granted Jun 10, 1980·14 cites·1 claims
- 0757US4268782AControl system for a DC motorFUJITSU FANUC LTD·Filed 1978·Granted May 19, 1981·14 cites·5 claims
- 0852US4362976ADriving circuit for DC motorFUJITSU FANUC LTD·Filed 1980·Granted Dec 7, 1982·12 cites·13 claims
- 0951US4837491AMotor velocity control apparatusFANUC LTD·Filed 1986·Granted Jun 6, 1989·11 cites·4 claims
- 1047US5270632ADriving system for an induction motor having a circuit for generating a slip pulse and a phase shifting pulseFANUC LTD·Filed 1991·Granted Dec 14, 1993·15 cites·4 claims
- 1147US4588937APosition control apparatusFANUC LTD·Filed 1984·Granted May 13, 1986·11 cites·6 claims
- 1232US4626762AAC motor control systemFANUC LTD·Filed 1984·Granted Dec 2, 1986·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →