Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5012622 | Structural filler filled steel tube column | Takanori Sato, Yasushi Watanabe, Seiho Kitagawa, Hideyo Shiokawa, Tomoo Shokawa +7 more | 1991-05-07 |
| 4783940 | Concrete filled steel tube column and method of constructing same | Takanori Sato, Yasukazu Nakamura, Hideo Nakajima, Yasushi Watanabe, Toru Ito +1 more | 1988-11-15 |