- 专利标题: HIGH-STRENGTH SEAMLESS STEEL PIPE FOR OIL WELLS, AND PRODUCTION METHOD FOR HIGH-STRENGTH SEAMLESS STEEL PIPE FOR OIL WELLS
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申请号: EP15872120.9申请日: 2015-09-10
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公开(公告)号: EP3202942B1公开(公告)日: 2019-05-01
- 发明人: YUGA, Masao , ISHIGURO, Yasuhide , NABESHIMA, Seiji , OKATSU, Mitsuhiro , OTA, Hiroki
- 申请人: JFE Steel Corporation
- 申请人地址: 2-3, Uchisaiwai-cho 2-chome Chiyoda-ku Tokyo, 100-0011 JP
- 专利权人: JFE Steel Corporation
- 当前专利权人: JFE Steel Corporation
- 当前专利权人地址: 2-3, Uchisaiwai-cho 2-chome Chiyoda-ku Tokyo, 100-0011 JP
- 代理机构: Hoffmann Eitle
- 优先权: JP2014260217 20141224
- 国际公布: WO2016103537 20160630
- 主分类号: C21D6/00
- IPC分类号: C21D6/00 ; C21D1/18 ; C22C38/42 ; C22C38/44 ; C22C38/46 ; C22C38/48 ; C22C38/50
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