Title:
矩形断面管の曲げ加工装置および方法
Document Type and Number:
Japanese Patent JP4920510
Kind Code:
B2
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Inventors:
Yuji Hashimoto
Koji Suzuki
Sonobe Osamu
Koji Saito
Masao Okada
Hirohide Yoshida
Koji Suzuki
Sonobe Osamu
Koji Saito
Masao Okada
Hirohide Yoshida
Application Number:
JP2007174760A
Publication Date:
April 18, 2012
Filing Date:
July 03, 2007
Export Citation:
Assignee:
jfe Steel Corporation
Taiyo Co., Ltd.
Taiyo Co., Ltd.
International Classes:
B21D7/025
Domestic Patent References:
| JP51153740U | ||||
| JP2003181543A | ||||
| JP63101027A | ||||
| JP58212813A | ||||
| JP2005161324A |
Attorney, Agent or Firm:
Eiichi Kobayashi