Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5796301 | Offset cancellation circuit | Ken Tanabe | 1998-08-18 |
| 5545979 | Power source device for watthour meter | Ken Tanabe | 1996-08-13 |
| 5497077 | Power calculating device | — | 1996-03-05 |
| 5495193 | Voltage to frequency converter | — | 1996-02-27 |