Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D875143 | Excavator | Shigehisa Hagura, Atsushi Ninomiya, Hayato Kubota, Hiroki Sugawara | 2020-02-11 |
| 10487476 | Construction machine | Hiroshi Kumagai, Kazuhiko Mizoguchi | 2019-11-26 |
| 10450721 | Construction machine | Takuya Inukai, Yasuhiko Yoshino, Kazuhiko Mizoguchi | 2019-10-22 |
| 6691510 | Pipe breakage control valve device | Genroku Sugiyama, Tsukasa Toyooka | 2004-02-17 |
| 6409142 | Pipe breakage control valve device | Genroku Sugiyama | 2002-06-25 |