Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7242110 | Control system for canceling load unbalance of three-phase circuit | Tadashi Matsumoto, Seiji Tange | 2007-07-10 |
| 6988023 | Monitoring and control system | Tadashi Matsumoto, Tomoo Ashizawa | 2006-01-17 |
| 6922318 | Ground relay system in a multiplex direct grounding system | Tadashi Matsumoto, Toshio Nomura | 2005-07-26 |
| 6160690 | Distribution control system and distribution control method capable of isolating fault section without fail | Tadashi Matsumoto | 2000-12-12 |