Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7882771 | Dust-collecting devices and cutting devices with the dust-collecting devices | Katsuhiko Sasaki, Masahiko Ono, Manabu Tokunaga, Shinji Hirabayashi, Toshiyuki Kani +1 more | 2011-02-08 |
| 7559268 | Dust-collecting devices and cutting devices with the dust-collecting devices | Katsuhiko Sasaki, Masahiko Ono, Manabu Tokunaga, Shinji Hirabayashi, Toshiyuki Kani +1 more | 2009-07-14 |
| D559644 | Portable electric circular saw | Takao Kuroyanagi, Naohiro Hayakawa | 2008-01-15 |
| D527592 | Power wrench | Naohiro Hayakawa, Manabu Sugimoto, Yuji Sakakibara | 2006-09-05 |