Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nichimen Co Ltd
JFE Engineering Corp
Original Assignee
Nichimen Co Ltd
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nichimen Co Ltd, Nippon Kokan LtdfiledCriticalNichimen Co Ltd
Priority to JP2936982ApriorityCriticalpatent/JPS5932557A/ja
Publication of JPS5932557ApublicationCriticalpatent/JPS5932557A/ja
Publication of JPS6226942B2publicationCriticalpatent/JPS6226942B2/ja