Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5185976 | Floor vibration-damping apparatus | Mitsuo Ishiguro, Shigetaka Abe, Nobuo Yamaguchi, Yutaka Hayamizu, Satoru Aizawa | 1993-02-16 |
| 5115615 | Floor vibration-damping apparatus | Mitsuo Ishiguro, Shigetaka Abe, Nobuo Yamaguchi, Yutaka Hayamizu, Satoru Aizawa | 1992-05-26 |
| 4921202 | Vertical vibration-damping apparatus | Mitsuo Ishiguro, Yutaka Hayamizu, Satoru Aizawa | 1990-05-01 |
| 4805359 | Method of applying floor vibration-damping work and vibration-damping floor device | Tadahiro Yano, Yoshio Tanno, Yutaka Hayamizu, Satoru Aizawa, Masahiko Higashino +1 more | 1989-02-21 |