Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9518692 | Pipe rehabilitation method | Makoto Ishida, Takeshi Hasegawa | 2016-12-13 |
| 9291295 | Segment for a rehabilitation pipe, and pipe rehabilitation method | Koji Kaneta, Kenji Fujii, Makoto Ishida | 2016-03-22 |