Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8197310 | Dust box and electric tool with the dust box | Hirokazu Hagiwara, Yoshifumi Morita, Takashi Kumagai | 2012-06-12 |
| 8066554 | Dust box and electric tool with the dust box | Hirokazu Hagiwara, Yoshifumi Morita, Takashi Kumagai | 2011-11-29 |