Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6241925 | Method of lining channels | Mitsutoshi Hayashi, Mitsunori Komori, Masato Koseki, Yuichi Banrai, Tomoyuki Minami +4 more | 2001-06-05 |
| 6089276 | Method for repairing buried pipe using a metal pipe and method for manufacturing metal pipes that are used in the repairing method | Yasuo Miyazaki | 2000-07-18 |
| 5293932 | Apparatus for cutting off projections inside pipes | Yasuo Miyazaki, Shigeki Watari | 1994-03-15 |
| 5108228 | Method of lining branch pipe portion of underground main pipe with rigid plastics tube | Yasuo Miyazaki, Shigeki Watari | 1992-04-28 |
| 5071616 | Method of inserting rigid plastic lining tube through pipe | Yasuo Miyazaki, Yoshiaki Saito | 1991-12-10 |
| 4990027 | Shield tunneling method and shield machine therefor | Masato Hattori, Rihei Nukushina | 1991-02-05 |
| 4965036 | Method of lining a pipe with a tube including passing heated fluid through the bores of the tube | Yasuo Miyazaki | 1990-10-23 |
| 4956041 | Method of lining branch pipe portion of underground main pipe with rigid plastics tube | Yasuo Miyazaki, Shigeki Watari | 1990-09-11 |