Issued Patents All Time
Showing 1–25 of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7056064 | Block unit for repairing flow passage facilities and method of repairing flow passage facilities | Takao Kamiyama | 2006-06-06 |
| 7051766 | Pipe liner bag everting nozzle and pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2006-05-30 |
| 6631739 | Pipe liner bag everting nozzle and pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2003-10-14 |
| 6562426 | Pipe liner bag | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2003-05-13 |
| 6401759 | Liner bag for manhole and method of lining a manhole | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2002-06-11 |
| 6296729 | Method of manufacturing pipe liner bag | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2001-10-02 |
| 6254709 | Method of manufacturing a pipe liner bag | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2001-07-03 |
| 6158473 | Branch pipe liner bag and pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2000-12-12 |
| 6152184 | Branch pipe liner bag and branch pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2000-11-28 |
| 6136135 | Method of manufacturing a pipe liner bag | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2000-10-24 |
| 6126030 | Liner for a manhole and a method for lining a manhole | Takao Kamiyama | 2000-10-03 |
| 6123109 | Branch pipe lining bag and pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2000-09-26 |
| 6103052 | Pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2000-08-15 |
| 6085794 | Pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2000-07-11 |
| 6056017 | Pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2000-05-02 |
| 6054180 | Method for impregnating a tubular resin-absorbable liner with resin | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2000-04-25 |
| 6042668 | Pipe liner bag and manufacturing methods therefor | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2000-03-28 |
| 6024910 | Method for lining a tubular conduit | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 2000-02-15 |
| 6018914 | Liner for manhole and a method for lining a manhole | Takao Kamiyama | 2000-02-01 |
| 6006787 | Branch pipe liner bag and branch pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 1999-12-28 |
| 5971031 | Branch pipe liner bag and pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 1999-10-26 |
| 5944058 | Branch pipe liner assembly and a pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 1999-08-31 |
| 5916406 | Branch pipe liner bag and pipe lining method | Takao Kamiyama, Shigeru Endoh, Hiroyuki Aoki | 1999-06-29 |
| 5906789 | Method of everting a pipe liner bag into a pipeline | Takao Kamiyama | 1999-05-25 |
| 5899796 | Rotary grinder assembly and a cutter robot | Takao Kamiyama, Shigeru Endoh | 1999-05-04 |