Title:
At least Sadakata is core sample sampling, at least Sadakata is a core sample marking method, and at least Sadakata is a core recessed-parts-forming device.
Document Type and Number:
Japanese Patent JP6176847
Kind Code:
B2
Inventors:
Hiroyuki Kono
Takashi Tsuzaki
Masao Saito
Takashi Tsuzaki
Masao Saito
Application Number:
JP2013208452A
Publication Date:
August 09, 2017
Filing Date:
October 03, 2013
Export Citation:
Assignee:
Power Development Co., Ltd.
Development Design Consultant Co., Ltd.
Central Development Co., Ltd.
Development Design Consultant Co., Ltd.
Central Development Co., Ltd.
International Classes:
E21B25/16; E02D1/04; G01N1/08
Domestic Patent References:
| JP57040087A | ||||
| JP58168791A | ||||
| JP9242458A |
Foreign References:
| US3964555 |
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Yasuhiko Murayama
Tadashi Takahashi
Takashi Watanabe
Yasuhiko Murayama