Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9374030 | Generator excitation apparatus and power conversion system | Kentaro Suzuki, Ryuta Hasegawa, Teruyuki Ishizuki, Kiyoshi Kusunoki | 2016-06-21 |
| 9287797 | Electric power converting device and electric power converting method | Ryuta Hasegawa, Yosuke Nakazawa, Kentaro Suzuki, Teruyuki Ishizuki | 2016-03-15 |
| 8836161 | Rolling stock system and control method thereof | Masayuki Nogi, Kazuaki Yuuki, Yosuke Nakazawa, Satoshi Koizumi | 2014-09-16 |