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.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Filing date
Publication date
Priority claimed from JP62333976Aexternal-prioritypatent/JPH01175671A/ja
Application filed by Nippon Steel CorpfiledCriticalNippon Steel Corp
Priority to JP1-500813ApriorityCriticalpatent/JPH0616288B2/ja
Publication of JPWO1989006400A1publicationCriticalpatent/JPWO1989006400A1/ja
Publication of JPH0616288B1publicationCriticalpatent/JPH0616288B1/ja
Publication of JPH0616288B2publicationCriticalpatent/JPH0616288B2/ja