Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9153403 | Electromagnet device | Toshifumi Sumino, Masaaki Yamamoto, Mitsuhiro Kawai, Shinichi Furusho | 2015-10-06 |
| 9136080 | Electromagnet device and electromagnetic relay using the same | Toshifumi Sumino, Masaaki Yamamoto, Tatsuro Kato, Kazuya Murakami | 2015-09-15 |