Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6235400 | Vibration-isolating laminar rubber structure having rubber layers whose composition includes at least one of asphalt, tar and pitch materials | Kenji Yamamoto, Kyoichi Yamamoto | 2001-05-22 |