Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5553405 | Power-assisted shovel truck equipped with a water-feeding device and a water-draining device | Hiroshi Hayashi | 1996-09-10 |
| 5473970 | Interlocking change-over valve system | Hiroshi Hayashi | 1995-12-12 |