Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5353559 | Anti-earthquake bearing apparatus | Nobuo Murota, Keizo Tatsunami, Koji Ishii, Masao Iizuka, Jun Tagami | 1994-10-11 |
| 4950528 | Anti-seismic rubber | Masao Iizuka, Yoshide Fukahori, Toshikazu Yoshizawa | 1990-08-21 |