Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9476293 | Transducer assembly for a downhole tools | Hiroshi Nakajima, Toshihiro Kinoshita, Takeo Fujihara | 2016-10-25 |
| 8286475 | Transducer assemblies for downhole tools | Hiroshi Nakajima, Toshihiro Kinoshita, Takeo Fujihara | 2012-10-16 |
| 7813220 | Method and apparatus for long term seismic monitoring | Emmanuel Coste, Colin Wilson, Rachel Lavaure | 2010-10-12 |