Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7061141 | Parallel operation method for an uninterruptible power supply apparatus | — | 2006-06-13 |
| 6960843 | Parallel operating system for uninterruptible power units | — | 2005-11-01 |
| 6560130 | Control circuit for multiphase inverter apparatus | Norio OBA | 2003-05-06 |
| 5796601 | Rectifier control system | — | 1998-08-18 |
| 5680040 | System for detecting incorrect phase rotation | Jyoji Kawai | 1997-10-21 |
| 5182463 | 3-Phase converter apparatus | Nobuo Sashida, Yuuko Yamasaki, Takao Kawabata | 1993-01-26 |