Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5846337 | Aerial washing method and apparatus | Tadao Nishikawa | 1998-12-08 |
| 5522941 | Underwater washing method and device | Tadao Nishikawa | 1996-06-04 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5846337 | Aerial washing method and apparatus | Tadao Nishikawa | 1998-12-08 |
| 5522941 | Underwater washing method and device | Tadao Nishikawa | 1996-06-04 |