Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5503695 | Lining material for pipe lines and a process for providing pipe lines therewith | Toshio Okahashi | 1996-04-02 |
| 5423630 | Method and apparatus for repairing a pipeline | Shinichi Takebe | 1995-06-13 |
| 5334429 | Lining material for pipe lines and a process for providing pipe lines therewith | Toshio Okahashi | 1994-08-02 |
| 5186987 | Lining material for pipe lines and a process for providing pipe lines therewith | Masahiro Seshimo, Futoshi Makimoto, Eiji Kitagawa | 1993-02-16 |