Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6052227 | Screen assembly with pivoting leg members | Masatoshi Niwa, Hajime Maruta | 2000-04-18 |
| 6046845 | Screen assembly and reflex type screen assembly | Masatoshi Niwa, Hajime Maruta | 2000-04-04 |