Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5353565 | Louvered window assembly | — | 1994-10-11 |
| D347071 | Mullion part | — | 1994-05-17 |
| 5307597 | Water deflector | Masayoshi Ishikawa | 1994-05-03 |
| 5235790 | Arrangement for attaching window board to transom | Masayoshi Ishikawa | 1993-08-17 |
| D331809 | Mullion | — | 1992-12-15 |
| D331810 | Mullion | — | 1992-12-15 |
| D331811 | Mullion | — | 1992-12-15 |
| D331632 | Mullion | — | 1992-12-08 |
| D328381 | Mullion part | — | 1992-07-28 |
| 5095672 | Windowsill | — | 1992-03-17 |
| 4715152 | Watertight windowsill construction | — | 1987-12-29 |
| 4662135 | Device for mounting a prefabricating curtain wall unit to a floor structure | Koichiro Nawa | 1987-05-05 |
| 4662136 | Prefabricated curtain wall assembly having both window and spandrel units | Koichiro Nawa | 1987-05-05 |
| 4662145 | Prefabricated curtain wall assembly having both window and spandrel units, and method of installation | Koichiro Nawa | 1987-05-05 |
| 4614069 | Prefabricated curtain wall assembly | Koichiro Nawa | 1986-09-30 |