Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8918668 | Interface circuit, inverter device, inverter system, and transmitting and receiving method | Koji Iwahashi, Satoshi Sueshima | 2014-12-23 |
| 6599095 | Pump-off control method of pump jack | Noriyuki Takada, Takayuki Yamakawa, Tetsuo Kawano, Koji Kawamoto, Toshio Miyano +2 more | 2003-07-29 |