Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4964246 | Rigidity control system for variable rigidity structure | Takuji Kobori, Shuichi Kamagata | 1990-10-23 |
| 4799339 | Method of controlling building against earthquake | Takuji Kobori, Mitsuo Sakamoto, Shunichi Yamada, Shuichi Kamagata | 1989-01-24 |