Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12426535 | Working machine and blade unit | Kohei Oishi, Tomoyuki KUTSUNA, Satoshi Takahashi | 2025-09-30 |
| 12364191 | Reciprocating blades with sealing member for motion conversion mechanism | Kohei Oishi, Tomoyuki KUTSUNA | 2025-07-22 |
| 9044848 | Impact tool having a vibration reducing member | — | 2015-06-02 |
| D563749 | Portable electric chisel | Shinsuke Okuda | 2008-03-11 |