Title:
孔壁崩落抑制方法、及び試験方法
Document Type and Number:
Japanese Patent JP4968135
Kind Code:
B2
Inventors:
Kenichi Ando
Application Number:
JP2008084456A
Publication Date:
July 04, 2012
Filing Date:
March 27, 2008
Export Citation:
Assignee:
Obayashi Corporation
International Classes:
E02D1/06; E21B23/00
Domestic Patent References:
JP4179792A | ||||
JP2000160978A | ||||
JP2001132375A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation