Inventor
Mitsujiro Sawamura
Inventor
Kitakyushu, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Pprimary
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters45%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems15%
G05BControl or regulating systems in general10%
B25JManipulators5%
F16DCouplings for transmitting rotation5%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure5%
G01MTesting static or dynamic balance of machines or structures5%
G01RMeasuring electric variables5%
H03KPulse technique5%
PatentTitleYear
10,158,316Motor control apparatus, power conversion device, auxiliary power source device, and method for controlling auxiliary power source device201810,110,155Motor control apparatus, power conversion device, auxiliary power source device, and method for controlling auxiliary power source device201810,050,578Motor control system, initial charger, and method for detecting failure20189,537,431'Brake diagnosis device and brake diagnosis method'20178,541,962'Motor driving apparatus'20138,189,356'PWM inverter'20128,120,302'Servo control apparatus'20127,800,338'Method of decelerating alternating current motor and inverter apparatus'20107,423,395'Sensorless vector control method for alternating-current motor and control apparatus therefor'20087,348,749'Control device for synchronous motor'20087,157,876'Motor magnetic pole position estimation device and control device'20074,916,376'Inverter driving method for induction motors'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–2013Patents assigned to YASKAWA DENKI SEISAKUSHO KK (8)· patent assignee history
1990–2018Based in Kitakyushu, JP· patent location history
2007–2010Based in Fukuoka, JP· patent location history
2012–2013Patents assigned to SAWAMURA MITSUJIRO (3)· patent assignee history
2012Patents assigned to TAKAHASHI HAJIME (1)· patent assignee history
2013Patents assigned to SATO KAZUO (1)· patent assignee history
2017–2018Patents assigned to YASKAWA ELECTRIC CORP (3)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| YASKAWA DENKI SEISAKUSHO KK | 8 | 1990–2013 |
| SAWAMURA MITSUJIROself | 3 | 2012–2013 |
| YASKAWA ELECTRIC CORP | 3 | 2017–2018 |
| SATO KAZUO | 1 | 2013 |
| TAKAHASHI HAJIME | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kitakyushu, JP | 8 | 1990–2018 |
| Fukuoka, JP | 4 | 2007–2010 |