Issued Patents All Time
Showing 51–69 of 69 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8232758 | Controller of electric motor having function of estimating inertia and friction simultaneously | Tadashi Okita, Yukio Toyozawa | 2012-07-31 |
| 8098038 | Servomotor control system enabling high-speed oscillating motion to be highly precise | Tadashi Okita, Yukio Toyozawa | 2012-01-17 |
| 8067918 | Servomotor controller for controlling periodic reciprocation | Tadashi Okita, Yukio Toyozawa | 2011-11-29 |
| 7902780 | Inertia estimating controller and control system | Tadashi Okita, Yukio Toyozawa | 2011-03-08 |
| 7808199 | Control apparatus | Tadashi Okita, Yukio Toyozawa | 2010-10-05 |
| 7293447 | Control device for die cushion mechanism | Yasusuke Iwashita, Tadashi Okita, Yukio Toyozawa | 2007-11-13 |
| 7215089 | Threading/tapping control apparatus | Yukio Toyozawa | 2007-05-08 |
| 7205743 | Controller for machine effecting end | Yasusuke Iwashita, Yukio Toyozawa | 2007-04-17 |
| 7170283 | Device for detecting a position of a magnetic pole | Yukio Toyozawa | 2007-01-30 |
| 7071651 | Position-of-magnetic-pole detecting device and method | Yukio Toyozawa | 2006-07-04 |
| 6876170 | Controller | Tadashi Okita | 2005-04-05 |
| 6859007 | Servo motor drive control device | Yukio Toyozawa | 2005-02-22 |
| 6823235 | Controller for machining gears | Yukio Toyozawa | 2004-11-23 |
| 6534944 | Servo controller | Yukio Toyozawa | 2003-03-18 |
| 6445154 | Method for detecting synchronous motor rotor magnetic pole position | Yukio Toyozawa | 2002-09-03 |
| 6046566 | Method of and apparatus for controlling a plurality of servomotors | Yukio Toyosawa, Kazuomi Maeda | 2000-04-04 |
| 5963007 | Current control method for an AC servomotor | Yukio Toyozawa | 1999-10-05 |
| 5646495 | Tandem control method based on a digital servomechanism | Yukio Toyozawa, Kazuomi Maeda | 1997-07-08 |
| 5371451 | Predictive repetition control method for a servo motor and an apparatus therefor | Yukio Toyosawa | 1994-12-06 |