Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5293932 | Apparatus for cutting off projections inside pipes | Yasuo Miyazaki, Akira Kamide | 1994-03-15 |
| 5108228 | Method of lining branch pipe portion of underground main pipe with rigid plastics tube | Yasuo Miyazaki, Akira Kamide | 1992-04-28 |
| 4956041 | Method of lining branch pipe portion of underground main pipe with rigid plastics tube | Yasuo Miyazaki, Akira Kamide | 1990-09-11 |