Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5508616 | Apparatus and method for determining parameters of formations surrounding a borehole in a preselected direction | Motoyuki Sato, Hiroaki Niitsuma, Jun Fuziwara | 1996-04-16 |
| 4754642 | High temperature fluid flow speed detection apparatus | Toshinobu Itoh | 1988-07-05 |
| 4725783 | Cable connection head for a well logging cable useful at high temperatures | Toshinobu Itoh | 1988-02-16 |