Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9531296 | Neutral-point-clamped multilevel power conversion device | Shota Urushibata, Hui Zhang | 2016-12-27 |
| 8659918 | Method of controlling power conversion device | Yasuhiro Yamamoto, Yu Sasaki, Takuya Sugai, Akira Shigaki | 2014-02-25 |
| 8560136 | System stabilizing device | Kazunobu Oi, Issei Hirayama | 2013-10-15 |
| 8527106 | System stabilization device | Kazunobu Oi, Issei Hirayama | 2013-09-03 |
| 8483885 | System stabilizing device | Kazunobu Oi, Akihiro Kimura | 2013-07-09 |
| 8457804 | System stabilizing device | Kazunobu Oi, Takahiro Murai | 2013-06-04 |
| 8452462 | System stabilizing device | Kazunobu Oi, Tatsuya Kohara | 2013-05-28 |