Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12264760 | Expansion joint and incineration ash treatment equipment | Kazuya Tamaki | 2025-04-01 |
| 11639763 | Expansion pipe joint and incineration ash treatment facility | Keita Tsunemori, Kazuya Tamaki | 2023-05-02 |