Title:
二重管の製作方法及び二重管の溶接装置
Document Type and Number:
Japanese Patent JP4354160
Kind Code:
B2
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| JPH06585 | [Name of invention] Pipe welding deformation prevention device |
| WO/2012/108442 | WELDING METHOD |
Inventors:
Mitsuru Kurosawa
Koji Nagasawa
Riki Toyohara
Koji Nagasawa
Riki Toyohara
Application Number:
JP2002249070A
Publication Date:
October 28, 2009
Filing Date:
August 28, 2002
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES,LTD.
International Classes:
B23K37/053
Domestic Patent References:
| JP5169136A | ||||
| JP2001287091A | ||||
| JP60222686A |
Attorney, Agent or Firm:
Hiroaki Sakai
Shin Ishikawa
Shigemitsu Tanaka
Shin Ishikawa
Shigemitsu Tanaka