Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12214395 | Extrusion molding method for differential thickness pipe and extrusion molding apparatus for differential thickness pipe | Michiharu Nakagaki | 2025-02-04 |
| 10675667 | Pipe bend die unit | — | 2020-06-09 |
| 9901968 | Pipe bend die unit, and pipe bending apparatus having the unit | — | 2018-02-27 |
| 9707610 | Pipe bend die unit, and pipe bending apparatus having the unit | — | 2017-07-18 |
| 9610626 | Pipe bend die unit, and pipe bending apparatus having the unit | Koji Suzuki, Masashi Ota | 2017-04-04 |