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.)
Mitsubishi Electric Corp
JFE Engineering Corp
Original Assignee
Mitsubishi Electric Corp
NKK Corp
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 Mitsubishi Electric Corp, NKK Corp, Nippon Kokan LtdfiledCriticalMitsubishi Electric Corp
Priority to JP14896476ApriorityCriticalpatent/JPS5372291A/ja
Publication of JPS5372291ApublicationCriticalpatent/JPS5372291A/ja
Publication of JPS5757213B2publicationCriticalpatent/JPS5757213B2/ja