Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8579571 | Connecting fastener | Hiroki Yamamoto, Takamichi Hoshino | 2013-11-12 |
| 8393511 | Pneumatic tool | Tatsushi Ogawa, Kouji Kubo, Norimitsu Sekiguchi, Yoshihiko Kondo, Tomokazu Nagata +4 more | 2013-03-12 |
| 6578750 | Nail hammering guide mechanism in nailing machine | Kouji Kubo, Takayuki Masuno | 2003-06-17 |
| 6318239 | Nailer and bumper provided therein for braking impact piston | — | 2001-11-20 |