Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5767400 | Hydraulic test system mounted with borehole television set for simultaneous observation in front and lateral directions | Katsushi Nakano, Koichi Yanagisawa, Yoichi Hirata, Kazuyuki Goto, Masahiko Tamura | 1998-06-16 |
| 5717455 | System and method for three dimensional image acquisition and processing of a borehole wall | — | 1998-02-10 |
| 5543972 | Mirror for producing a development picture of the wall of a borehole in the ground and device therefor | — | 1996-08-06 |