Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE31955 | Flashing construction for a curtain wall | Ryusuke Kage, Masakatsu Iwata | 1985-07-30 |
| 4276729 | Flashing construction for a curtain wall | Ryusuke Kage, Masakatsu Iwata | 1981-07-07 |