Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5732934 | Apparatus for inserting a communication wire through a pipeline by air flow | Hiroaki Sano, Akiyoshi Noguchi, Shigeru Tanaka | 1998-03-31 |
| 5664763 | Apparatus for blowing cable and method therefor | Hiroaki Sano, Satoshi Tanaka | 1997-09-09 |
| 5528938 | Method and apparatus for measuring length of conduit and for diagnosing inside of conduit | Hiroaki Sano, Shigeru Tanaka, Tetsuro Yabuta, Takeshi Tsujimura | 1996-06-25 |
| 5505086 | Method and apparatus for measuring length of conduit and for diagnosing inside of conduit | Hiroaki Sano, Shigeru Tanaka, Tetsuro Yabuta, Takeshi Tsujimura | 1996-04-09 |
| 5499797 | Method for inserting a communication wire through a pipeline by air flow | Hiroaki Sano, Akiyoshi Noguchi, Shigeru Tanaka | 1996-03-19 |