Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6672426 | Sound-insulating floor structures, sound-insulating floor members and method for constructing said sound-insulating floor structures | Hirofumi Kakimoto | 2004-01-06 |
| 4803112 | Impact-cushioning sheets and direct-applying restraint type floor damping structures using the same | Hirofumi Kakimoto, Shinya Shimada | 1989-02-07 |