Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9712075 | Method of controlling single-phase voltage source AC/DC converter and interconnection system | Masaaki Ohshima, Shuichi Ushiki | 2017-07-18 |
| 8553436 | Synchronization detecting circuit and automatic synchronous parallelization apparatus | Masaaki Ohshima, Shuichi Ushiki | 2013-10-08 |
| 8542511 | Single-phase voltage source AC/DC converter and interconnection system | Masaaki Ohshima, Shuichi Ushiki | 2013-09-24 |
| 8503206 | Single-phase voltage source DC-AC power converter and three-phase voltage source DC-AC power converter | Masaaki Ohshima, Shuichi Ushiki, Hirokazu Shimizu | 2013-08-06 |