Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741438 | Lightning-arresting system with underground network | — | 2004-05-25 |
| 5549005 | Vibration testing apparatus with increased rigidity in static pressure bearing | Hidenao Aoki, Shigehisa Tsutsumi, Takehiro Fukushima | 1996-08-27 |