Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5817408 | Sound insulation structure | Motohiro Orimo, Kyoichi Watanabe, Kouichi Nemoto, Hiroshi Sugawara | 1998-10-06 |
| 5677027 | Sound insulating structure | Yuugorou Masuda, Masashi Ito, Tomohiro Ito, Hiroshi Sugawara | 1997-10-14 |