Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5353559 | Anti-earthquake bearing apparatus | Nobuo Murota, Keizo Tatsunami, Koji Ishii, Atsuhiko Yasaka, Masao Iizuka | 1994-10-11 |
| 5347771 | High damping device for seismic response controlled structure | Takuji Kobori, Koji Ishii, Motoichi Takahashi, Yoshinori Matsunaga, Naoki Niwa +2 more | 1994-09-20 |