专利检索 ap:("Nippon Steel & Sumitomo Metal Corporation") AND inv:"NOSE, Tetsuro, C/O NIPPON STEEL CORPORATION" 第 1 页

1.

发明授权
METHOD OF INCREASING TOUGHNESS OF HEAT-AFFECTED PART OF STEEL PRODUCT WELDED JOINT 有权
标题翻译：方法提高焊接钢管产品的一部分热的影响的韧性

公开(公告)号：EP1559796B1

公开(公告)日：2017-04-19

申请号：EP03769982.4

申请日：2003-10-29

申请人： Nippon Steel & Sumitomo Metal Corporation

发明人： ISHIKAWA, Tadashi, C/O NIPPON STEEL CORPORATION , NAKASHIMA, Kiyotaka, C/O NIPPON STEEL CORPORATION , NOSE, Tetsuro, C/O NIPPON STEEL CORPORATION

IPC分类号： B23K20/10 , B23K33/00 , C21D7/04 , C21D9/50 , C21D10/00 , B23K103/04 , C21D7/06

CPC分类号： C21D7/06 , B23K20/10 , B23K33/004 , B23K2203/04 , C21D7/04 , C21D9/50 , C21D10/00 , Y10T29/4578 , Y10T29/4583