Issued Patents All Time
Showing 51–75 of 118 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9356550 | Motor controller having abnormality detection function of power transmission unit between motor and main shaft | Daisuke Tajima | 2016-05-31 |
| 9136781 | Synchronous control unit for synchronizing two shafts with each other | — | 2015-09-15 |
| 9092027 | Control apparatus of machine tool including feed shaft motor and main spindle motor | Daisuke Tajima | 2015-07-28 |
| 9008821 | Servo control system capable of improving processing accuracy | Yukio Toyozawa, Kazuomi Maeda, Naoto Sonoda | 2015-04-14 |
| 8884571 | Motor control apparatus which limits torque command according to input current or power | Daisuke Tajima | 2014-11-11 |
| 8698442 | Motor drive control device for limiting output of motor | Daisuke Tajima | 2014-04-15 |
| 8669727 | Detection device for detecting magnetic pole position of synchronous motor, and control apparatus equipped therewith | Yukio Toyozawa, Kenji Takahashi | 2014-03-11 |
| 8664897 | Motor drive apparatus having power failure detection unit for determining presence or absence of power failure | Yasusuke Iwashita, Masakazu Niwa | 2014-03-04 |
| 8662799 | Tapping machine | Kenichi Takayama | 2014-03-04 |
| 8483865 | Numerical controller with tool trajectory display function | Yasusuke Iwashita, Junichi Tezuka | 2013-07-09 |
| 8432120 | Tool path display apparatus with deceleration factor identification means for machine tool | Yasusuke Iwashita, Junichi Tezuka | 2013-04-30 |
| 8305016 | Control device with learning function for electric motors | Yukio Toyozawa, Naoto Sonoda | 2012-11-06 |
| 8294411 | Sensorless induction motor control device having function of correcting slip frequency of motor | Takahiro Akiyama, Tomohisa Tsutsumi | 2012-10-23 |
| 8278849 | Controller for calculating electric power consumption of industrial machine | Yasusuke Iwashita, Hiroyuki Kawamura, Junichi Tezuka, Kenta Yamamoto | 2012-10-02 |
| 8242734 | Controller of spindle provided with encoder | Yasusuke Iwashita, Takahiro Akiyama, Geng Li | 2012-08-14 |
| 8232758 | Controller of electric motor having function of estimating inertia and friction simultaneously | Yukio Toyozawa, Naoto Sonoda | 2012-07-31 |
| 8190287 | Tool vector display apparatus for a machine tool with rotational axes | Yasusuke Iwashita, Junichi Tezuka, Kazuyuki Sugiyama | 2012-05-29 |
| 8098038 | Servomotor control system enabling high-speed oscillating motion to be highly precise | Yukio Toyozawa, Naoto Sonoda | 2012-01-17 |
| 8067918 | Servomotor controller for controlling periodic reciprocation | Yukio Toyozawa, Naoto Sonoda | 2011-11-29 |
| 8058827 | Motor control apparatus having a function to calculate amount of cogging torque compensation | Yasusuke Iwashita, Junichi Tezuka, Kazuyuki Sugiyama | 2011-11-15 |
| 8054015 | Motor drive apparatus equipped with dynamic braking circuit fault detection capability | Yasusuke Iwashita, Hiroyuki Kawamura, Kenichi Takayama | 2011-11-08 |
| 8049457 | Press machine controller | Hiroyuki Kawamura, Kouki Kameta | 2011-11-01 |
| 8040097 | Servo motor drive control device for calculating consumed electric energy and regenerated electric energy | Yasusuke Iwashita, Hiroyuki Kawamura, Yuuya Ueno | 2011-10-18 |
| 8030878 | Motor driving device having power failure detection function | Yasusuke Iwashita, Masakazu Niwa | 2011-10-04 |
| 8026689 | Control device for machine tool | Yasusuke Iwashita, Junichi Tezuka | 2011-09-27 |