Inventor · disambiguated record
Ryoichi Kurosawa
Also filed as: KUROSAWA RYOICHI
30 granted patents·616 citations·filing 1975–2013
97Inventor score
Top patents by PatentIndex Score
30 records- 0197US6342745B1Reluctance type rotating machine with permanent magnetsTOSHIBA KK·Filed 2000·Granted Jan 29, 2002·88 cites·8 claims
- 0293US6274960B1Reluctance type rotating machine with permanent magnetsTOSHIBA KK·Filed 1999·Granted Aug 14, 2001·76 cites·16 claims
- 0392US6552462B2Reluctance type rotating machine with permanent magnetsTOSHIBA KK·Filed 2001·Granted Apr 22, 2003·43 cites·14 claims
- 0488US4555755AAC Current control systemTOKYO SHIBAURA ELECTRIC CO·Filed 1984·Granted Nov 26, 1985·47 cites·3 claims
- 0583US5288956ASelf running type elevator system using linear motorsTOSHIBA KK·Filed 1992·Granted Feb 22, 1994·40 cites·20 claims
- 0676US8941947B2Spindle motor and hard disk drive therewithMINEBEA CO LTD·Filed 2013·Granted Jan 27, 2015·5 cites·18 claims
- 0775US4475105ASystem for detecting mechanical movementTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Oct 2, 1984·23 cites·15 claims
- 0873US4527120ASystem for converting mechanical movement to a digital signalTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted Jul 2, 1985·21 cites·4 claims
- 0971US4267499AMethod and system for controlling induction motorsTOKYO SHIBAURA ELECTRIC CO·Filed 1978·Granted May 12, 1981·16 cites·10 claims
- 1069US4556885ASystem for detecting position or speedTOKYO SHIBAURA ELECTRIC CO·Filed 1982·Granted Dec 3, 1985·18 cites·17 claims
- 1168US4914365AControl device for servo motorTOSHIBA KK·Filed 1988·Granted Apr 3, 1990·25 cites·7 claims
- 1266US4307346APhase detecting circuitTOKYO SHIBAURA ELECTRIC CO·Filed 1979·Granted Dec 22, 1981·16 cites·8 claims
- 1361US4517636AInverter apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1983·Granted May 14, 1985·13 cites·3 claims
- 1459US5111124AContinuous deadbeat control system with feedback controlTOSHIBA KK·Filed 1990·Granted May 5, 1992·20 cites·16 claims
- 1556US5502633AMethod and apparatus for controlling an inverterTOSHIBA KK·Filed 1994·Granted Mar 26, 1996·21 cites·6 claims
- 1655US7262982B2Power conversion apparatusTOSHIBA MITSUBISHI ELEC INC·Filed 2006·Granted Aug 28, 2007·2 cites·9 claims
- 1754US4755738AReactive power compensation apparatusTOSHIBA KK·Filed 1987·Granted Jul 5, 1988·23 cites·10 claims
- 1854US4555752AAC Power converter with commutation circuit for reducing reactive powerTOSHIBA KK·Filed 1984·Granted Nov 26, 1985·10 cites·20 claims
- 1953US4698581AReactive power compensation apparatusTOSHIBA KK·Filed 1986·Granted Oct 6, 1987·23 cites·10 claims
- 2051US4652989AFrequency converter apparatusTOSHIBA KK·Filed 1985·Granted Mar 24, 1987·14 cites·14 claims
- 2149US4837492AApparatus for detecting revolution using a synchroTOSHIBA KK·Filed 1988·Granted Jun 6, 1989·10 cites·8 claims
- 2248US5250887AFeedback controllerTOSHIBA KK·Filed 1992·Granted Oct 5, 1993·13 cites·8 claims
- 2348US5057685AOptical rotation detector including a disk having slits with concave and convex parts and method of manufacturingTOSHIBA KK·Filed 1989·Granted Oct 15, 1991·9 cites·12 claims
- 2448US4032831AInverter apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1975·Granted Jun 28, 1977·9 cites·10 claims
- 2544US4675584AControl systemTOSHIBA KK·Filed 1985·Granted Jun 23, 1987·9 cites·6 claims
- 2639US4259629AControl devices of induction motorsTOKYO SHIBAURA ELECTRIC CO·Filed 1978·Granted Mar 31, 1981·4 cites·6 claims
- 2738US5446363AMethod of controlling induction motorTOSHIBA KK·Filed 1993·Granted Aug 29, 1995·6 cites·16 claims
- 2835US4282570AMethod and apparatus for controlling an output current of a controlled rectifierTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Aug 4, 1981·5 cites·11 claims
- 2934US4264952AInverter apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1979·Granted Apr 28, 1981·2 cites·11 claims
- 3032US5361197AMethod and apparatus for controlling an inverter generating a plurality of phase voltagesTOSHIBA KK·Filed 1993·Granted Nov 1, 1994·5 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →