Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5486709 | Surge protection device | Yutaka Hayashi, Masaaki Sato | 1996-01-23 |
| 5376809 | Surge protection device | Yutaka Hayashi, Masaaki Sato | 1994-12-27 |
| 5371385 | Surge protection device | Yutaka Hayashi, Masaaki Sato | 1994-12-06 |