发明授权
- 专利标题： Production method of ultra fine grain steel
- 专利标题（中）： 超细晶粒钢的生产方法
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申请号： EP00301483.4申请日： 2000-02-24
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公开(公告)号： EP1031632B9公开(公告)日： 2005-09-07
- 发明人: Torizuka, Shiro , Umezawa, Osamu , Tsuzaki, Kaneaki , Nagai, Kotobu
- 申请人： Japan as represented by Director General of National Research Institute for Metals
- 申请人地址： 1-2-1 Sengen Tsukuba-shi, Ibaraki JP
- 专利权人： Japan as represented by Director General of National Research Institute for Metals
- 当前专利权人： Japan as represented by Director General of National Research Institute for Metals
- 当前专利权人地址： 1-2-1 Sengen Tsukuba-shi, Ibaraki JP
- 代理机构： Calamita, Roberto
- 优先权： JP5179999 19990226; JP24669899 19990831
- 主分类号： C21D8/00
- IPC分类号： C21D8/00 ; C21D7/13
公开/授权文献
- EP1031632B1 Production method of ultra fine grain steel 公开/授权日：2005-06-01
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