Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825617 | Fire-resistant open joint structure and its method | Keizou Misawa, Hideaki Watanabe, Hidehiko Aoki, Toshio Kurokawa, Hidefumi Ono | 1989-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825617 | Fire-resistant open joint structure and its method | Keizou Misawa, Hideaki Watanabe, Hidehiko Aoki, Toshio Kurokawa, Hidefumi Ono | 1989-05-02 |