Inventor · disambiguated record
Yasuo Notohara
Also filed as: NOTOHARA YASUO
23 granted patents·5 pending applications·671 citations·filing 1989–2021
97Inventor score
Files withHITACHI LTD18HITACHI APPLIANCES INC2HITACHI JOHNSON CONTROLS AIR CONDITIONING INC2RENESAS ELECTRONICS CORP2HITACHI IND EQUIPMENT SYS1
Top patents by PatentIndex Score
28 records- 0196US6191545B1Control apparatus of brushless motor and machine and apparatus using brushless motorHITACHI LTD·Filed 1999·Granted Feb 20, 2001·94 cites·17 claims
- 0292US7471525B2Converter and power converter that becomes it with the converterHITACHI APPLIANCES INC·Filed 2005·Granted Dec 30, 2008·38 cites·3 claims
- 0392US5463299ACurrent controller for controlling a current flowing in a load using a PWM inverter and method used therebyHITACHI LTD·Filed 1993·Granted Oct 31, 1995·81 cites·25 claims
- 0490US6198240B1Motor controllerHITACHI LTD·Filed 1995·Granted Mar 6, 2001·67 cites·15 claims
- 0588US6337548B2Control apparatus of brushless motor and machine and apparatus using brushless motorHITACHI LTD·Filed 2001·Granted Jan 8, 2002·37 cites·14 claims
- 0684US5359278AZero current switching circuit and converting apparatus using the sameHITACHI LTD·Filed 1992·Granted Oct 25, 1994·41 cites·7 claims
- 0783US9748887B2Permanent magnet synchronous motor and winding-switching motor driving device, and refrigeration air conditioner and electric vehicle using sameHITACHI LTD·Filed 2015·Granted Aug 29, 2017·7 cites·12 claims
- 0883US6479956B1Brushless motor control device and equipment using the control deviceHITACHI LTD·Filed 1999·Granted Nov 12, 2002·50 cites·27 claims
- 0981US8305020B2Electric power conversion device, compressor motor with the device, and air conditioner with the motorSUZUKI TAKAHIRO·Filed 2009·Granted Nov 6, 2012·16 cites·13 claims
- 1079US7839663B2Converter and power converter that becomes it with the converterHITACHI APPLIANCES INC·Filed 2008·Granted Nov 23, 2010·13 cites·12 claims
- 1175US6075328APWM/PAM control mode switching type motor control apparatus, and motor drive and air-conditioner using the sameHITACHI LTD·Filed 1997·Granted Jun 13, 2000·50 cites·32 claims
- 1274US8531148B2Control apparatus and control method for AC electric motorSUMITA SATOSHI·Filed 2011·Granted Sep 10, 2013·4 cites·11 claims
- 1374US6603280B2Motor controllerHITACHI LTD·Filed 2001·Granted Aug 5, 2003·29 cites·9 claims
- 1473US10651774B2Inverter and motor drive device, freezing deviceHITACHI JOHNSON CONTROLS AIR CONDITIONING INC·Filed 2016·Granted May 12, 2020·1 cites·8 claims
- 1573US6626002B1Controller for PWM/PAM motor, air conditioner, and method of motor controlHITACHI LTD·Filed 1999·Granted Sep 30, 2003·33 cites·7 claims
- 1672US7944720B2Semiconductor integrated circuit, PWM signal output device, and power conversion control apparatusRENESAS ELECTRONICS CORP·Filed 2008·Granted May 17, 2011·5 cites·14 claims
- 1771US6397611B1Air conditioner and brushless motor control unitHITACHI LTD·Filed 2000·Granted Jun 4, 2002·22 cites·7 claims
- 1869US7075266B2Apparatus for controlling an a. c. motorHITACHI LTD·Filed 2004·Granted Jul 11, 2006·16 cites·18 claims
- 1966US6519959B2Air conditionerHITACHI LTD·Filed 2001·Granted Feb 18, 2003·17 cites·14 claims
- 2064US8847534B2Converter, motor driving module, and refrigerating apparatusLI DONGSHENG·Filed 2010·Granted Sep 30, 2014·2 cites·13 claims
- 2158US5050057APower source apparatusHITACHI LTD·Filed 1989·Granted Sep 17, 1991·19 cites·16 claims
- 2255US5929591AAir conditionerHITACHI LTD·Filed 1997·Granted Jul 27, 1999·26 cites·25 claims
- 2352US8344671B2Speed controller of magnetic motorHITACHI IND EQUIPMENT SYS·Filed 2009·Granted Jan 1, 2013·3 cites·13 claims
- 2450US2013287602A1Motor Control Device And RefrigeratorHITACHI LTD·Filed 2013·Application pending·0 cites
- 2548US2025030371A1Motor Control Apparatus, Motor Drive Apparatus, and Device Using SameHITACHI LTD·Filed 2021·Application pending·0 cites
- 2648US2011182096A1Semiconductor integrated circuit, pwm signal output device, and power conversion control apparatusRENESAS ELECTRONICS CORP·Filed 2011·Application pending·0 cites
- 2743US2002116961A1Washing machineHITACHI LTD·Filed 2002·Application pending·0 cites
- 2837US2019097559A1Power conversion device, motor drive device, and refrigerator using sameHITACHI JOHNSON CONTROLS AIR CONDITIONING INC·Filed 2016·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Yasuo Notohara files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →