Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10424452 | Operation coil drive device for magnetic contactor | Naoyuki Matsuo, Masahiro Motonobu, Takashi Tsutsumi | 2019-09-24 |
| 10262824 | Operation coil drive device of electromagnetic contactor | Naoyuki Matsuo, Akira Morita, Kosuke Ishibashi | 2019-04-16 |