Iwaji; Yoshitaka
Patent Applications and Registrations
Patent applications and USPTO patent grants for Iwaji; Yoshitaka.The latest application filed is for "power conversion device, rotating machine system, and diagnosis method".
Company Profile
15.78.80
- Iwaji; Yoshitaka - Tokyo JP
- Iwaji; Yoshitaka - Hitachinaka JP
- Iwaji; Yoshitaka - Hitachi JP
- IWAJI; Yoshitaka - Hitachi-shi JP
- Iwaji; Yoshitaka - Hitachinaka-shi JP
Patent Activity
| Patent | Date |
|---|---|
| Power conversion device Grant 11,437,944 - Tobari , et al. September 6, 2 | 2022-09-06 |
| Power conversion apparatus Grant 11,424,707 - Tobari , et al. August 23, 2 | 2022-08-23 |
| Power Conversion Device, Rotating Machine System, and Diagnosis Method App 20220229113 - MAKI; Kohji ; et al. | 2022-07-21 |
| Control device for electric power steering apparatus and electric power steering apparatus Grant 11,325,641 - Hara , et al. May 10, 2 | 2022-05-10 |
| Induction motor overheat monitoring method, induction motor monitoring device, and induction motor control system Grant 11,303,236 - Zhou , et al. April 12, 2 | 2022-04-12 |
| AC electric motor control device Grant 11,273,712 - Iwaji , et al. March 15, 2 | 2022-03-15 |
| Rotating machine drive system Grant 11,233,474 - Takahashi , et al. January 25, 2 | 2022-01-25 |
| Monitoring System and Monitoring Method App 20210405118 - NAKAMURA; Akihiro ; et al. | 2021-12-30 |
| Power conversion device, rotating machine system using same, and diagnosis method for same Grant 11,193,978 - Maki , et al. December 7, 2 | 2021-12-07 |
| Motor drive system Grant 11,196,377 - Takaoka , et al. December 7, 2 | 2021-12-07 |
| AC Electric Motor Control Device App 20210328537 - IWAJI; Yoshitaka ; et al. | 2021-10-21 |
| Control device and control method for AC motor and AC motor drive system Grant 11,139,771 - Iwaji , et al. October 5, 2 | 2021-10-05 |
| Power Conversion Device App 20210273591 - TOBARI; Kazuaki ; et al. | 2021-09-02 |
| Induction Motor Overheat Monitoring Method, Induction Motor Monitoring Device, And Induction Motor Control System App 20210152111 - ZHOU; Guangbin ; et al. | 2021-05-20 |
| Power Conversion Apparatus App 20210152113 - TOBARI; Kazuaki ; et al. | 2021-05-20 |
| Power Conversion Device, Rotating Machine System Using Same, And Diagnosis Method For Same App 20210072319 - MAKI; Kohji ; et al. | 2021-03-11 |
| Rotating Machine Drive System App 20210044238 - TAKAHASHI; Akeshi ; et al. | 2021-02-11 |
| Synchronous motor control apparatus Grant 10,903,767 - Hadinata , et al. January 26, 2 | 2021-01-26 |
| Motor Drive System App 20200389117 - TAKAOKA; Midori ; et al. | 2020-12-10 |
| Electromechanical integral motor Grant 10,804,765 - Tanie , et al. October 13, 2 | 2020-10-13 |
| Motor control system and motor control method Grant 10,658,960 - Sumita , et al. | 2020-05-19 |
| Control device of synchronous electric motor, integrated motor system, pump system, and positioning system Grant 10,644,627 - Iwaji , et al. | 2020-05-05 |
| Control device of AC motor Grant 10,608,561 - Sumita , et al. | 2020-03-31 |
| Synchronous Motor Control Apparatus App 20200052620 - HADINATA; Agnes ; et al. | 2020-02-13 |
| Motor control system Grant 10,505,490 - Sumita , et al. Dec | 2019-12-10 |
| Control Device And Control Method For Ac Motor And Ac Motor Drive System App 20190253014 - IWAJI; Yoshitaka ; et al. | 2019-08-15 |
| Motor Control System and Motor Control Method App 20190207544 - SUMITA; Satoshi ; et al. | 2019-07-04 |
| Power Conversion Device, Motor Drive Device, And Refrigerator Using Same App 20190097559 - LI; Dongsheng ; et al. | 2019-03-28 |
| Linear motor and positioning apparatus Grant 10,218,252 - Aoyama , et al. Feb | 2019-02-26 |
| Motor Control System App 20190052214 - SUMITA; Satoshi ; et al. | 2019-02-14 |
| Electromechanical Integral Motor App 20180358863 - TANIE; Hisashi ; et al. | 2018-12-13 |
| Control Device Of Synchronous Electric Motor, Integrated Motor System, Pump System, And Positioning System App 20180287526 - IWAJI; Yoshitaka ; et al. | 2018-10-04 |
| Control Device for Electric Power Steering Apparatus and Electric Power Steering Apparatus App 20180201303 - HARA; Takafumi ; et al. | 2018-07-19 |
| Control Device of AC Motor App 20180198386 - SUMITA; Satoshi ; et al. | 2018-07-12 |
| Synchronous motor control apparatus and drive system using the same Grant 9,923,502 - Iwaji , et al. March 20, 2 | 2018-03-20 |
| Sensorless driving apparatus and sensorless driving method for brushless motor Grant 9,729,091 - Hano , et al. August 8, 2 | 2017-08-08 |
| Linear motor and linear motor drive system Grant 9,712,032 - Aoyama , et al. July 18, 2 | 2017-07-18 |
| Synchronous Motor Control Apparatus And Drive System Using The Same App 20170194889 - IWAJI; Yoshitaka ; et al. | 2017-07-06 |
| Power conversion device Grant 9,350,284 - Sakai , et al. May 24, 2 | 2016-05-24 |
| Electric motor drive device Grant 9,325,264 - Iwaji , et al. April 26, 2 | 2016-04-26 |
| Linear Motor and Linear Motor Drive System App 20150222167 - Aoyama; Yasuaki ; et al. | 2015-08-06 |
| Electric Motor Drive Device App 20150155805 - Iwaji; Yoshitaka ; et al. | 2015-06-04 |
| Thrust generation mechanism, drive device, XY stage and XYZ stage Grant 9,000,626 - Aoyama , et al. April 7, 2 | 2015-04-07 |
| Three-Phase Synchronous Motor Drive Device App 20150069941 - Iwaji; Yoshitaka ; et al. | 2015-03-12 |
| Power Conversion Device App 20140340005 - Sakai; Toshifumi ; et al. | 2014-11-20 |
| Drive system for synchronous electrical motor Grant 8,884,575 - Takahata , et al. November 11, 2 | 2014-11-11 |
| Synchronous motor drive system and synchronous motor Grant 8,878,480 - Iwaji , et al. November 4, 2 | 2014-11-04 |
| Linear motor Grant 8,810,082 - Aoyama , et al. August 19, 2 | 2014-08-19 |
| Synchronous electric motor drive system Grant 8,766,575 - Iwaji , et al. July 1, 2 | 2014-07-01 |
| Rotator control device, rotator system, vehicle, electric car and electric generation system Grant 8,760,095 - Iwaji , et al. June 24, 2 | 2014-06-24 |
| AC motor control device and AC motor driving system Grant 8,742,704 - Nakatsugawa , et al. June 3, 2 | 2014-06-03 |
| Brushless motor drive apparatus and drive method Grant 8,710,788 - Hano , et al. April 29, 2 | 2014-04-29 |
| Sensorless Driving Apparatus and Sensorless Driving Method for Brushless Motor App 20140084824 - HANO; Masaki ; et al. | 2014-03-27 |
| Driving System For Synchronous Motor App 20140077738 - Iwaji; Yoshitaka ; et al. | 2014-03-20 |
| Drive device for alternating current motor and electric motor vehicle Grant 8,674,647 - Iwaji , et al. March 18, 2 | 2014-03-18 |
| Polyphase AC motor, driving device and driving method therefor Grant 8,664,902 - Iwasaki , et al. March 4, 2 | 2014-03-04 |
| Drive System For Synchronous Electrical Motor App 20130272899 - TAKAHATA; Ryoichi ; et al. | 2013-10-17 |
| Driving system of permanent magnet synchronous motor Grant 8,541,971 - Sakai , et al. September 24, 2 | 2013-09-24 |
| Synchronous Electric Motor Drive System App 20130243625 - Iwaji; Yoshitaka ; et al. | 2013-09-19 |
| Linear Motor and Positioning Apparatus App 20130093264 - Aoyama; Yasuaki ; et al. | 2013-04-18 |
| Generator and Electricity-Generating System App 20130088099 - Aoyama; Yasuaki ; et al. | 2013-04-11 |
| Torque ripple suppression control device for permanent magnet motor and electric power steering system Grant 8,410,735 - Tobari , et al. April 2, 2 | 2013-04-02 |
| Synchronous Motor Drive System and Synchronous Motor App 20130057193 - Iwaji; Yoshitaka ; et al. | 2013-03-07 |
| Control device for synchronous motor Grant 8,362,727 - Iwaji , et al. January 29, 2 | 2013-01-29 |
| Drive system of synchronous motor Grant 8,258,732 - Iwaji , et al. September 4, 2 | 2012-09-04 |
| Drive system of synchronous motor Grant 8,232,751 - Iwaji , et al. July 31, 2 | 2012-07-31 |
| Rotator Control Device, Rotator System, Vehicle, Electric Car and Electric Generation System App 20120146567 - IWAJI; Yoshitaka ; et al. | 2012-06-14 |
| Polyphase AC Motor, Driving Device and Driving Method Therefor App 20120038301 - Iwasaki; Norihisa ; et al. | 2012-02-16 |
| Ac Motor Control Device And Ac Motor Driving System App 20120007528 - Nakatsugawa; Junnosuke ; et al. | 2012-01-12 |
| Linear Moto App 20110298308 - Aoyama; Yasuaki ; et al. | 2011-12-08 |
| Control apparatus for AC motor Grant 8,044,618 - Nakatsugawa , et al. October 25, 2 | 2011-10-25 |
| Thrust Generation Mechanism, Drive Device, Xy Stage And Xyz Stage App 20110241449 - Aoyama; Yasuaki ; et al. | 2011-10-06 |
| Brushless Motor Drive Apparatus And Drive Method App 20110234133 - Hano; Masaki ; et al. | 2011-09-29 |
| Drive Device For Alternating Current Motor And Electric Motor Vehicle App 20110204831 - Iwaji; Yoshitaka ; et al. | 2011-08-25 |
| Torque Ripple Suppression Control Device For Permanent Magnet Motor And Electric Power Steering System App 20110175556 - TOBARI; Kazuaki ; et al. | 2011-07-21 |
| Semiconductor power converter Grant 7,919,941 - Aoyagi , et al. April 5, 2 | 2011-04-05 |
| Control Device for Synchronous Motor App 20110074324 - Iwaji; Yoshitaka ; et al. | 2011-03-31 |
| Driving system of permanent magnet synchronous motor App 20110050140 - Sakai; Toshifumi ; et al. | 2011-03-03 |
| Control device for synchronous motor Grant 7,859,209 - Iwaji , et al. December 28, 2 | 2010-12-28 |
| Synchronous motor control device Grant 7,847,500 - Iwaji , et al. December 7, 2 | 2010-12-07 |
| Converter and power converter that becomes it with the converter Grant 7,839,663 - Suzuki , et al. November 23, 2 | 2010-11-23 |
| Controller and constant measuring apparatus for AC motor Grant 7,825,620 - Nakatsugawa , et al. November 2, 2 | 2010-11-02 |
| Beat-less controller for permanent magnet motor Grant 7,808,202 - Tobari , et al. October 5, 2 | 2010-10-05 |
| Field weakening control apparatus for permanent magnet motor and electric power steering using same Grant 7,791,295 - Oi , et al. September 7, 2 | 2010-09-07 |
| Stepping motor controlling device Grant 7,728,543 - Takemori , et al. June 1, 2 | 2010-06-01 |
| Highly responsive permanent magnet motor controller Grant 7,719,226 - Tobari , et al. May 18, 2 | 2010-05-18 |
| Drive System Of Synchronous Motor App 20100066284 - IWAJI; Yoshitaka ; et al. | 2010-03-18 |
| Induction motor controller Grant 7,671,558 - Yamamoto , et al. March 2, 2 | 2010-03-02 |
| Drive System Of Synchronous Motor App 20090200971 - IWAJI; Yoshitaka ; et al. | 2009-08-13 |
| Vector control apparatus for permanent magnet motor Grant 7,560,896 - Tobari , et al. July 14, 2 | 2009-07-14 |
| Control Apparatus For Ac Motor App 20090140674 - NAKATSUGAWA; Junnosuke ; et al. | 2009-06-04 |
| Converter And Power Converter That Becomes It With The Converter App 20090135630 - Suzuki; Takahiro ; et al. | 2009-05-28 |
| Semiconductor Power Converter App 20090058331 - Aoyagi; Shigehisa ; et al. | 2009-03-05 |
| Converter and power converter that becomes it with the converter Grant 7,471,525 - Suzuki , et al. December 30, 2 | 2008-12-30 |
| Field weakening control apparatus for permanent magnet motor and electric power steering using same App 20080265809 - Ol; Kentaro ; et al. | 2008-10-30 |
| Induction Motor Controller App 20080169783 - YAMAMOTO; KOUKI ; et al. | 2008-07-17 |
| Highly Responsive Permanent Magent Motor Controller App 20080157709 - Tobari; Kazuaki ; et al. | 2008-07-03 |
| Beat-less Controller For Permanent Magnet Motor App 20080157710 - Tobari; Kazuaki ; et al. | 2008-07-03 |
| Synchronous motor control device App 20080143288 - Iwaji; Yoshitaka ; et al. | 2008-06-19 |
| Control system for permanent magnet synchronous motor and module Grant 7,388,341 - Tobari , et al. June 17, 2 | 2008-06-17 |
| Controller And Constant Measuring Apparatus For Ac Motor App 20080079378 - NAKATSUGAWA; JUNNOSUKE ; et al. | 2008-04-03 |
| Control device for synchronous motor App 20080061726 - Iwaji; Yoshitaka ; et al. | 2008-03-13 |
| Synchronous motor driving apparatus Grant 7,276,876 - Kaneko , et al. October 2, 2 | 2007-10-02 |
| Vector Control Apparatus for Permanent Magnet Motor App 20070216342 - Tobari; Kazuaki ; et al. | 2007-09-20 |
| Stepping motor controlling device App 20070216335 - Takemori; Akio ; et al. | 2007-09-20 |
| AC motor driving apparatus and method of controlling the same Grant 7,271,557 - Ajima , et al. September 18, 2 | 2007-09-18 |
| AC motor driving apparatus and method of controlling the same App 20070013333 - Ajima; Toshiyuki ; et al. | 2007-01-18 |
| Apparatus for controlling an a. c. motor Grant 7,075,266 - Tobari , et al. July 11, 2 | 2006-07-11 |
| Motor drive system for AC motors Grant 7,064,514 - Iwaji , et al. June 20, 2 | 2006-06-20 |
| Synchronous moter driving apparatus App 20060113948 - Kaneko; Daigo ; et al. | 2006-06-01 |
| Driving systems of AC motor Grant 7,030,589 - Kaneko , et al. April 18, 2 | 2006-04-18 |
| Control system for permanent magnet synchronous motor and module App 20060055362 - Tobari; Kazuaki ; et al. | 2006-03-16 |
| Converter and power converter that becomes it with the converter App 20060044848 - Suzuki; Takahiro ; et al. | 2006-03-02 |
| Rotary electric machine and automobile provided with the same Grant 7,002,274 - Kim , et al. February 21, 2 | 2006-02-21 |
| Driving systems of AC motor App 20040263114 - Kaneko, Daigo ; et al. | 2004-12-30 |
| Apparatus for controlling an a. c. motor App 20040189243 - Tobari, Kazuaki ; et al. | 2004-09-30 |
| Motor drive system for AC motors App 20040183498 - Iwaji, Yoshitaka ; et al. | 2004-09-23 |
| Motor control apparatus and method Grant 6,771,039 - Sakurai , et al. August 3, 2 | 2004-08-03 |
| Control apparatus for controlling inverter for driving permanent magnet types synchronous motor App 20040113572 - Iwaji, Yoshitaka ; et al. | 2004-06-17 |
| Sensorless control system for synchronous motor Grant 6,690,137 - Iwaji , et al. February 10, 2 | 2004-02-10 |
| Rotary electric machine and automobile provided with the same App 20040021390 - Kim, Houng Joong ; et al. | 2004-02-05 |
| Synchronous motor driving system Grant 6,650,081 - Iwaji , et al. November 18, 2 | 2003-11-18 |
| Driving device for synchronous motor Grant 6,639,377 - Iwaji , et al. October 28, 2 | 2003-10-28 |
| Synchronous motor driving system and sensorless control method for a synchronous motor Grant 6,628,099 - Iwaji , et al. September 30, 2 | 2003-09-30 |
| Linear motor, driving and control system thereof and manufacturing method thereof Grant 6,614,137 - Joong , et al. September 2, 2 | 2003-09-02 |
| Motor control apparatus and method App 20030128009 - Sakurai, Yoshimi ; et al. | 2003-07-10 |
| System for driving electric motor App 20030071588 - Iwaji, Yoshitaka ; et al. | 2003-04-17 |
| Synchronous motor driving system and sensorless control method for a synchronous motor App 20030057912 - Iwaji, Yoshitaka ; et al. | 2003-03-27 |
| Synchronous motor driving system App 20030052640 - Iwaji, Yoshitaka ; et al. | 2003-03-20 |
| Driving system of AC motor Grant 6,531,843 - Iwaji , et al. March 11, 2 | 2003-03-11 |
| Sensorless control system for synchronous motor App 20030030404 - Iwaji, Yoshitaka ; et al. | 2003-02-13 |
| Control apparatus for alternating-current motor App 20020167289 - Nakatsugawa, Junnosuke ; et al. | 2002-11-14 |
| Driving device for synchronous motor App 20020153857 - Iwaji, Yoshitaka ; et al. | 2002-10-24 |
| Washing machine App 20020116961 - Kim, Houng Joong ; et al. | 2002-08-29 |
| Driving system of AC motor App 20020060548 - Iwaji, Yoshitaka ; et al. | 2002-05-23 |
| Linear motor, driving and control system thereof and manufacturing method thereof App 20020043879 - Joong, Kim Houng ; et al. | 2002-04-18 |
| Motor control method and motor control system Grant 6,225,774 - Masaki , et al. May 1, 2 | 2001-05-01 |
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