Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11168642 | Cylinder liner for cast-covering, and method for manufacturing cylinder block | Koichi Hatakeyama, Yoshihiko Aoki, Yuusuke Okuyama, Mako Abe | 2021-11-09 |
| 10596624 | Cast-iron cylindrical member and composite structure | Akira Sayama, Koichi Hatakeyama, Akira Sato, Kazuki Seino, Katsuya OKUDA | 2020-03-24 |