Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7936549 | State grasp device, and switching control device of power switching apparatus employing the state grasp device | Toshie Takeuchi, Akihiko Maruyama, Mitsuru Tsukima, Toshihiro Matsunaga | 2011-05-03 |