Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7322382 | Segment for a rehabilitating pipe | Takao Kamiyama, Kenji Fujii, Makoto Ishida | 2008-01-29 |
| 7311121 | Lateral pipe lining material and lateral pipe lining method | Takao Kamiyama, Kenji Fuji | 2007-12-25 |
| 7311122 | Lining material for rehabilitating an existing pipe and a manhole, and barrier liner and method for rehabilitating a pipe and a manhole | Takao Kamiyama, Kenji Fujii | 2007-12-25 |
| 7165578 | Method for laying a rehabilitating pipe | Takao Kamiyama, Kenji Fujii, Takeshi Hasegawa | 2007-01-23 |
| 7156124 | Segment for rehabilitating an existing pipe and a rehabilitating pipe assembled using segments | Takao Kamiyama, Kenji Fujii | 2007-01-02 |
| 7121305 | Method for lining an existing pipe and collar for protecting a lining material | Takao Kamiyama, Kenji Fujii, Takeshi Hasegawa | 2006-10-17 |
| 7083360 | Method for rehabilitating an existing pipe | Takao Kamiyama, Kenji Fujii | 2006-08-01 |
| 7028716 | Method for rehabilitating an existing pipe | Takao Kamiyama, Kenji Fujii, Takeshi Hasegawa | 2006-04-18 |
| 7017613 | Segment for rehabilitating pipe assembly | Katsuyori Miura, Makoto Ishida, Kenji Fujii, Takao Kamiyama | 2006-03-28 |