Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4890213 | Power converter device having starting circuits and a method for starting the power converter device | — | 1989-12-26 |
| 4878208 | Voltage-phase responsive, inverter disable circuit for system interconnection | Kiyoshi Ogawa, Kihei Nakajima | 1989-10-31 |