Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12422081 | Branch pipe forming apparatus, lid doubling as valve element, branch pipe forming apparatus with lid doubling as valve element, and branch pipe formation method | Gou Horikawa | 2025-09-23 |
| 11892111 | Housing device and method for mounting housing device | — | 2024-02-06 |
| 10612688 | Corrosion prevention apparatus and corrosion prevention method for cut faces of pipes | — | 2020-04-07 |