Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671778 | Repairing tube, method for repairing pipe lines therewith and method for removing the repairing tube | Hiroyuki Sakuragi, Masahiro Seshimo, Futoshi Makimoto, Takuji Sokawa, Hitoshi Saito | 1997-09-30 |
| 5423630 | Method and apparatus for repairing a pipeline | Takayoshi Imoto | 1995-06-13 |