Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12325151 | Method and device for producing concrete pile | Akio Kitamura, Shinya Nakazawa, Masaaki Ono | 2025-06-10 |
| 11530520 | Pile press-in machine and pile press-in method | Akio Kitamura, Masaaki Ono, Toshio Ikeda | 2022-12-20 |