发明授权
EP1559796B1 METHOD OF INCREASING TOUGHNESS OF HEAT-AFFECTED PART OF STEEL PRODUCT WELDED JOINT
有权
方法提高焊接钢管产品的一部分热的影响的韧性
- 专利标题: METHOD OF INCREASING TOUGHNESS OF HEAT-AFFECTED PART OF STEEL PRODUCT WELDED JOINT
- 专利标题(中): 方法提高焊接钢管产品的一部分热的影响的韧性
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申请号: EP03769982.4申请日: 2003-10-29
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公开(公告)号: EP1559796B1公开(公告)日: 2017-04-19
- 发明人: ISHIKAWA, Tadashi, C/O NIPPON STEEL CORPORATION , NAKASHIMA, Kiyotaka, C/O NIPPON STEEL CORPORATION , NOSE, Tetsuro, C/O NIPPON STEEL CORPORATION
- 申请人: Nippon Steel & Sumitomo Metal Corporation
- 申请人地址: 6-1, Marunouchi 2-chome Chiyoda-ku Tokyo 100-8071 JP
- 专利权人: Nippon Steel & Sumitomo Metal Corporation
- 当前专利权人: Nippon Steel & Sumitomo Metal Corporation
- 当前专利权人地址: 6-1, Marunouchi 2-chome Chiyoda-ku Tokyo 100-8071 JP
- 代理机构: Vossius & Partner Patentanwälte Rechtsanwälte mbB
- 优先权: JP2002315396 20021030
- 国际公布: WO2004040023 20040513
- 主分类号: B23K20/10
- IPC分类号: B23K20/10 ; B23K33/00 ; C21D7/04 ; C21D9/50 ; C21D10/00 ; B23K103/04 ; C21D7/06
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