Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7619161 | Grounding device and method of constructing the same | Makoto Ishizaki, Minoru Yoneda | 2009-11-17 |
| 6791813 | Communication line surge protecting system | Takashi Shikano, Kiyotaka Ando | 2004-09-14 |