Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5145280 | Water disaster prevention water curtain forming apparatus | Toshimitsu Araki, Hitoshi Miyagawa, Masahito Yoshida, Naotaka Masuda | 1992-09-08 |
| 5081582 | Method of controlling position of on-water water curtain device | Toshimitsu Araki, Hitoshi Miyagawa, Masahito Yoshida, Naotaka Masuda | 1992-01-14 |
| 5067653 | Screen forming apparatus and method | Toshimitsu Araki, Masayuki Ogino, Hitoshi Miyagawa, Toshio Kamata, Mitsuo Watanabe +1 more | 1991-11-26 |
| 4974779 | Screen forming apparatus and method | Toshimitsu Araki, Masayuki Ogino, Hitoshi Miyagawa, Toshio Kamata, Mitsuo Watanabe +1 more | 1990-12-04 |