Issued Patents All Time
Showing 76–89 of 89 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5698056 | Method for manufacturing a tubular liner bag | Yasuhiro Yokoshima | 1997-12-16 |
| 5598873 | Branch pipe lining method and liner | Yasuhiro Yokoshima, Shigeru Endoh | 1997-02-04 |
| 5566719 | Method for lining a branch pipe of an underground pipe | Yasuhiro Yokoshima | 1996-10-22 |
| 5540613 | Cutter apparatus | Yasuhiro Yokoshima, Shigeru Endoh | 1996-07-30 |
| 5520484 | Eversion nozzle, and a method for repairing an underground tubular conduit | Yasuhiro Yokoshima, Shigeru Endoh | 1996-05-28 |
| 5503190 | Method for repairing a tubular conduit | Yasuhiro Yokoshima | 1996-04-02 |
| 5501115 | Method of inspecting a pipe liner bag | Yasuhiro Yokoshima, Shigeru Endoh | 1996-03-26 |
| 5498389 | Method and apparatus for lining a branch pipe | Yasuhiro Yokoshima, Shigeru Endoh | 1996-03-12 |
| 5490964 | Method and device for repairing a tubular conduit | Yasuhiro Yokoshima, Shigeru Endoh | 1996-02-13 |
| 5486332 | Method for everting a tubular liner bag | Yasuhiro Yokoshima | 1996-01-23 |
| 5474823 | Pipe liner bag, manufacturing method therefor and pipe repair method | Yasuhiro Yokoshima | 1995-12-12 |
| 5454401 | Method of lining a branch pipe | Yasuhiro Yokoshima, Shigeru Endoh | 1995-10-03 |
| 5439033 | Method of lining a branch pipe | Yasuhiro Yokoshima, Shigeru Endoh | 1995-08-08 |
| 5356502 | Method for lining a branch pipe | Yasuhiro Yokoshima | 1994-10-18 |