Title:
岩石コア採取装置
Document Type and Number:
Japanese Patent JP5510958
Kind Code:
B2
Inventors:
Wada Nobuyoshi
Kawakami Kiyokazu
Kawakami Kiyokazu
Application Number:
JP2010035025A
Publication Date:
June 04, 2014
Filing Date:
February 19, 2010
Export Citation:
Assignee:
West Japan Expressway Co., Ltd.
Goyo Construction Co., Ltd.
Goyo Construction Co., Ltd.
International Classes:
E21B25/00; E21B7/02; E21B15/00
Domestic Patent References:
| JP2007070870A | ||||
| JP60003385A | ||||
| JP2002038868A |
Attorney, Agent or Firm:
Masao Tanaka