Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8710781 | Power conversion device and method for controlling thereof | Koichiro Nagata, Yuusuke Arao, Shigehisa Aoyagi | 2014-04-29 |
| 7902790 | Induction motor drive unit, motor drive system, and elevating system | Koichiro Nagata, Hiroyuki Tomita | 2011-03-08 |