Title:
継目無管の製造方法
Document Type and Number:
Japanese Patent JP4603707
Kind Code:
B2
Inventors:
Takashi Arizumi
Azuma Shozo
Tatsuro Katsumura
Ryuharu Oda
Yamazaki Motoharu
Azuma Shozo
Tatsuro Katsumura
Ryuharu Oda
Yamazaki Motoharu
Application Number:
JP2001045277A
Publication Date:
December 22, 2010
Filing Date:
February 21, 2001
Export Citation:
Assignee:
NKK Seamless Steel Pipe Co., Ltd.
International Classes:
B21B19/08
Domestic Patent References:
| JP2000140910A | ||||
| JP5277516A | ||||
| JP64027707A | ||||
| JP4187310A |
Attorney, Agent or Firm:
Hajime Tsukuni
Koshiro Tsukuda
Yasuo Yanagibashi
Satoko Ito
Koshiro Tsukuda
Yasuo Yanagibashi
Satoko Ito