Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D477206 | Portable electric hammer | Masato Sakai, Atsuyuki Kikuchi | 2003-07-15 |
| 6497418 | Tool-bit holding device in percussion tool | — | 2002-12-24 |
| 6155356 | Percussion tool | Atsuyuki Kikuchi, Sinki Ohtsu, Mutsuo Harada | 2000-12-05 |
| 5971403 | Holding device for percussion tool | Mutsuo Harada | 1999-10-26 |
| 5522466 | Vibration-damping structure for electric hammer | Mutsuo Harada | 1996-06-04 |