Issued Patents All Time
Showing 1–25 of 123 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10247301 | Servo control system with position compensation function for driven member | Kenichi Takayama, Satoshi Ikai | 2019-04-02 |
| 9709975 | Control system of servo motors improving processing precision of plurality of axes | Naoto Sonoda, Yukio Toyozawa | 2017-07-18 |
| 9557731 | Control device of gear processing machine | Tadashi Okita | 2017-01-31 |
| 9448545 | Servo control device for performing correction based on amount of stretch or contraction of ball screw | Kenichi Takayama, Satoshi Ikai | 2016-09-20 |
| 9048733 | Motor driving device having reactive current instruction generating unit | Hajime Ogawa | 2015-06-02 |
| 9018886 | Motor control system which corrects backlash | Kenichi Takayama, Satoshi Ikai | 2015-04-28 |
| 8988032 | Numerical controller having display function for trajectory of tool | Hajime Ogawa | 2015-03-24 |
| 8924004 | Numerical controller for making positioning completion check | Junichi Tezuka | 2014-12-30 |
| 8901866 | Motor drive apparatus equipped with energy storage unit | Koujirou Sakai | 2014-12-02 |
| 8903518 | Motor control apparatus equipped with dead-zone processing unit | Naoto Sonoda, Yukio Toyozawa | 2014-12-02 |
| 8896255 | Servo controller having function for correcting amount of expansion/contraction of ball screw | Kenichi Takayama, Satoshi Ikai | 2014-11-25 |
| 8786239 | Motor drive PWM rectifier having modulation scheme selector | Masakazu Niwa, Kenta Yamamoto | 2014-07-22 |
| 8779704 | Motor control apparatus equipped with delta-sigma modulation AD converter | Taku Sasaki | 2014-07-15 |
| 8754599 | Motor control apparatus equipped with delta-sigma modulation AD converter | Taku Sasaki | 2014-06-17 |
| 8754601 | Controller and control method of synchronous motor with amplifier protection function | Naoto Sonoda | 2014-06-17 |
| 8736217 | Servo motor control device for controlling servo motor configured to drive feed axis of machine tool | Satoshi Ikai | 2014-05-27 |
| 8716965 | Synchronous motor control device for controlling synchronous motor to carry out power regenerative operation and stop synchronous motor at the time of power failure | Hajime Ogawa | 2014-05-06 |
| 8680805 | Control device that drives one driven object by two motors | Naoto Sonoda | 2014-03-25 |
| 8664897 | Motor drive apparatus having power failure detection unit for determining presence or absence of power failure | Tadashi Okita, Masakazu Niwa | 2014-03-04 |
| 8649130 | Motor driving apparatus having fault diagnostic function | Shinichi Horikoshi, Takashi Harada, Masatomo Shirouzu | 2014-02-11 |
| 8633663 | Control device that detects whether or not irreversible demagnetization has occurred in permanent magnet of permanent magnet synchronous motor | Naoto Sonoda | 2014-01-21 |
| 8624538 | Motor driving apparatus having function of dynamically switching converter operation mode of AC/DC converter | Tomokazu Yoshida, Takashi Harada, Shinichi Horikoshi | 2014-01-07 |
| 8483865 | Numerical controller with tool trajectory display function | Tadashi Okita, Junichi Tezuka | 2013-07-09 |
| 8436565 | Motor controller for tandem control | Kazuomi Maeda, Yukio Toyozawa | 2013-05-07 |
| 8432120 | Tool path display apparatus with deceleration factor identification means for machine tool | Tadashi Okita, Junichi Tezuka | 2013-04-30 |