Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5520484 | Eversion nozzle, and a method for repairing an underground tubular conduit | Takao Kamiyama, Yasuhiro Yokoshima | 1996-05-28 |
| 5501115 | Method of inspecting a pipe liner bag | Takao Kamiyama, Yasuhiro Yokoshima | 1996-03-26 |
| 5498389 | Method and apparatus for lining a branch pipe | Takao Kamiyama, Yasuhiro Yokoshima | 1996-03-12 |
| 5490964 | Method and device for repairing a tubular conduit | Takao Kamiyama, Yasuhiro Yokoshima | 1996-02-13 |
| 5454401 | Method of lining a branch pipe | Takao Kamiyama, Yasuhiro Yokoshima | 1995-10-03 |
| 5439033 | Method of lining a branch pipe | Takao Kamiyama, Yasuhiro Yokoshima | 1995-08-08 |
| 5329063 | Liner assembly for lining branch pipes and a method for manufacturing the liner assembly | — | 1994-07-12 |
| 5242517 | Pipe liner and a method for manufacturing same | — | 1993-09-07 |
| 5223204 | Method and apparatus for reversing a tubular bag | — | 1993-06-29 |