Inventor · disambiguated record
Yukio Toyozawa
Also filed as: TOYOZAWA YUKIO
38 granted patents·1 pending application·480 citations·filing 1983–2019
98Inventor score
Top patents by PatentIndex Score
39 records- 0193US7656106B2Servo controllerFANUC LTD·Filed 2006·Granted Feb 2, 2010·32 cites·10 claims
- 0293US7498761B2Motor control method and motor control apparatusFANUC LTD·Filed 2007·Granted Mar 3, 2009·26 cites·16 claims
- 0389US7205743B2Controller for machine effecting endFANUC LTD·Filed 2005·Granted Apr 17, 2007·23 cites·4 claims
- 0488US9331618B2Magnetic pole position detector for synchronous motorFANUC CORP·Filed 2013·Granted May 3, 2016·7 cites·3 claims
- 0586US6445154B1Method for detecting synchronous motor rotor magnetic pole positionFANUC LTD·Filed 2000·Granted Sep 3, 2002·35 cites·7 claims
- 0684US8872463B2Electric motor controller comprising function for simultaneously estimating inertia, friction, and springSONODA NAOTO·Filed 2012·Granted Oct 28, 2014·6 cites·6 claims
- 0784US8232758B2Controller of electric motor having function of estimating inertia and friction simultaneouslyOKITA TADASHI·Filed 2010·Granted Jul 31, 2012·7 cites·10 claims
- 0884US7902780B2Inertia estimating controller and control systemFANUC LTD·Filed 2009·Granted Mar 8, 2011·13 cites·7 claims
- 0984US7187148B2ControllerFANUC LTD·Filed 2005·Granted Mar 6, 2007·14 cites·21 claims
- 1083US8098038B2Servomotor control system enabling high-speed oscillating motion to be highly preciseOKITA TADASHI·Filed 2010·Granted Jan 17, 2012·6 cites·6 claims
- 1181US7915848B2Servo control apparatus that performs dual-position feedback controlFANUC LTD·Filed 2010·Granted Mar 29, 2011·5 cites·3 claims
- 1280US8305016B2Control device with learning function for electric motorsOKITA TADASHI·Filed 2008·Granted Nov 6, 2012·10 cites·9 claims
- 1380US7808199B2Control apparatusFANUC LTD·Filed 2008·Granted Oct 5, 2010·10 cites·10 claims
- 1480US6534944B2Servo controllerFANUC LTD·Filed 2001·Granted Mar 18, 2003·28 cites·16 claims
- 1577US7293447B2Control device for die cushion mechanismFANUC LTD·Filed 2005·Granted Nov 13, 2007·8 cites·3 claims
- 1677US7071651B2Position-of-magnetic-pole detecting device and methodFANUC LTD·Filed 2004·Granted Jul 4, 2006·22 cites·34 claims
- 1777US6823235B2Controller for machining gearsFANUC LTD·Filed 2002·Granted Nov 23, 2004·22 cites·14 claims
- 1876US6859007B2Servo motor drive control deviceFANUC LTD·Filed 2004·Granted Feb 22, 2005·20 cites·9 claims
- 1976US5963007ACurrent control method for an AC servomotorFANUC LTD·Filed 1997·Granted Oct 5, 1999·37 cites·4 claims
- 2076US5646495ATandem control method based on a digital servomechanismFANUC LTD·Filed 1995·Granted Jul 8, 1997·55 cites·9 claims
- 2175US9008821B2Servo control system capable of improving processing accuracyOKITA TADASHI·Filed 2011·Granted Apr 14, 2015·3 cites·6 claims
- 2275US7215089B2Threading/tapping control apparatusFANUC LTD·Filed 2005·Granted May 8, 2007·7 cites·11 claims
- 2374US6903527B2Servo controllerFANUC LTD·Filed 2004·Granted Jun 7, 2005·18 cites·16 claims
- 2473US8067918B2Servomotor controller for controlling periodic reciprocationOKITA TADASHI·Filed 2010·Granted Nov 29, 2011·3 cites·6 claims
- 2572US7479750B2Controller for electric motorFANUC LTD·Filed 2007·Granted Jan 20, 2009·6 cites·10 claims
- 2669US8903518B2Motor control apparatus equipped with dead-zone processing unitSONODA NAOTO·Filed 2012·Granted Dec 2, 2014·2 cites·3 claims
- 2767US7170283B2Device for detecting a position of a magnetic poleFANUC LTD·Filed 2004·Granted Jan 30, 2007·14 cites·6 claims
- 2865US8436565B2Motor controller for tandem controlMAEDA KAZUOMI·Filed 2009·Granted May 7, 2013·5 cites·2 claims
- 2964US4623831ARotor position sensing apparatus for motorsFANUC LTD·Filed 1983·Granted Nov 18, 1986·15 cites·9 claims
- 3061US11003168B2Controller for gear cutting machineFANUC CORP·Filed 2019·Granted May 11, 2021·0 cites·7 claims
- 3155US4521724AApparatus for processing energy regenerated by an AC motorFANUC LTD·Filed 1983·Granted Jun 4, 1985·12 cites·6 claims
- 3246US2008218116A1Servo controllerFANUC LTD·Filed 2008·Application pending·0 cites
- 3345US10166642B2Drive apparatus comprising mechanical vibration suppression function, and system comprising mechanical vibration suppression functionFANUC CORP·Filed 2017·Granted Jan 1, 2019·0 cites·6 claims
- 3444US9720225B2Processing system with galvano scanner capable of high speed laser scanningFANUC CORP·Filed 2015·Granted Aug 1, 2017·0 cites·5 claims
- 3540US9709975B2Control system of servo motors improving processing precision of plurality of axesFANUC CORP·Filed 2015·Granted Jul 18, 2017·0 cites·4 claims
- 3640US8669727B2Detection device for detecting magnetic pole position of synchronous motor, and control apparatus equipped therewithOKITA TADASHI·Filed 2012·Granted Mar 11, 2014·0 cites·2 claims
- 3740US7932689B2Motor drive system for driving motor provided with a plurality of windingsFANUC LTD·Filed 2009·Granted Apr 26, 2011·0 cites·1 claims
- 3839US4794628ACounter circuit with mislatching preventionFANUC LTD·Filed 1987·Granted Dec 27, 1988·4 cites·4 claims
- 3937US5572018AMethod and apparatus to detect absolute position using encoder having a counter clear signalFANUC LTD·Filed 1994·Granted Nov 5, 1996·5 cites·8 claims
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