Title:
A manufacturing method of a welding defect detection method, a system, and a ERW steel pipe, and a manufacturing method of welding products
Document Type and Number:
Japanese Patent JP5909872
Kind Code:
B2
Inventors:
Okabe Nochi
Toshifumi Kodama
Kozo Iizuka
Hiromichi Hori
Kenichi Iwasaki
Tatsuo Koide
Yokoyama
Masatoshi Aratani
Shunsuke Toyota
Toshifumi Kodama
Kozo Iizuka
Hiromichi Hori
Kenichi Iwasaki
Tatsuo Koide
Yokoyama
Masatoshi Aratani
Shunsuke Toyota
Application Number:
JP2011106934A
Publication Date:
April 27, 2016
Filing Date:
May 12, 2011
Export Citation:
Assignee:
jfe Steel Corporation
International Classes:
B23K13/08; B21C37/08; B23K13/00
Domestic Patent References:
| JP2009072788A | ||||
| JP4319079A |
Attorney, Agent or Firm:
Kenichiro Ochiai
Eiichi Kobayashi
Eiichi Kobayashi
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