Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9698586 | Pole-attached cable relay carriage and power supply system to electric work machine | Masanori Tojima, Koji Takeda, Takao Nagai | 2017-07-04 |
| 9507360 | Mine power management system | Masanori Tojima, Kouichi Yamashita, Tsugio Sudou, Koji Takeda, Takao Nagai +2 more | 2016-11-29 |
| 5355734 | Life predicting gauge for structure and life predicting method employing the same | — | 1994-10-18 |