Issued Patents 2025
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12392428 | Pipe joint and pipe joining method | Ryunosuke TANAKA, Keita ODA | 2025-08-19 |
| 12359755 | Pipe joint, spacer provided in pipe joint, and dividing piece constituting spacer | Ryunosuke TANAKA, Keita ODA | 2025-07-15 |
| 12281727 | Pipe transport device and pipe joining method inside pipeline construction shaft | Shozo Kishi, Kazuya Ito, Ko Ishimura, Masataka Shimomura, Yutaka Fujimoto +1 more | 2025-04-22 |
| 12281962 | Watertightness testing device and watertightness testing method | Masataka Shimomura, Daichi Higasa, Kohei IKEDA | 2025-04-22 |
| 12196644 | Watertightness testing method and assembling device | Shozo Kishi, Masataka Shimomura, Daichi Higasa, Kohei IKEDA | 2025-01-14 |