Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D474751 | Electric transfer switch | Katsuhiro Yoshida | 2003-05-20 |
| 6538223 | Electric transfer switch unit | Katsuhiro Yoshida | 2003-03-25 |
| 5621254 | Uninterruptible power switching method and apparatus | Kaizo Takeda, Kano Otani | 1997-04-15 |
| 4937403 | Power source switching device | Junichi Minoura | 1990-06-26 |