Title:
Groundwater detection method, boring device and core sampling device
Document Type and Number:
Japanese Patent JP6309695
Kind Code:
B2
Inventors:
Komiya Kunimori
Atsushi Marui
Atsushi Marui
Application Number:
JP2017522440A
Publication Date:
April 11, 2018
Filing Date:
November 30, 2016
Export Citation:
Assignee:
Hi-Tech Co., Ltd.
International Classes:
E21B43/00; E21B25/00
Domestic Patent References:
| JP2017066646A | ||||
| JP2012154039A | ||||
| JP2006291571A | ||||
| JP64071992A | ||||
| JP2004285668A | ||||
| JP2006124936A | ||||
| JP2005030803A | ||||
| JP2002227580A | ||||
| JP2011074600A | ||||
| JP2014077231A | ||||
| JP2012112668A | ||||
| JP2016505097A |
Foreign References:
| US20130199847 | ||||
| US4598777 |
Attorney, Agent or Firm:
Hiroaki Kakita