Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5884902 | Double-mass type dynamic damper having two damper systems | Masaaki Hamada, Takahiro Aoi, Tetsuya Kohgo | 1999-03-23 |
| 5375822 | Fluid-filled cylindrical elastic mount having two orifices and valve assembly for opening and closing one of the orifices | Nobuhiro Hirasawa | 1994-12-27 |
| 5056763 | Dynamic damper | Masaaki Hamada | 1991-10-15 |