Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5622013 | Structure of multipurpose suspended roof arena capable of changing space volume and construction method thereof | Masaru Ozaki, Arata Yoshida, Masahiro Hanyu, Takeshi Miyazaki, Seiichi Muramatsu +2 more | 1997-04-22 |