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.)
Shinagawa Shiro Renga KK
Nippon Steel Corp
Original Assignee
Shinagawa Shiro Renga KK
Sumitomo Metal Industries 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 Shinagawa Shiro Renga KK, Sumitomo Metal Industries LtdfiledCriticalShinagawa Shiro Renga KK
Priority to JP24307486ApriorityCriticalpatent/JPS6397353A/ja
Publication of JPS6397353ApublicationCriticalpatent/JPS6397353A/ja
Publication of JPH0262352B2publicationCriticalpatent/JPH0262352B2/ja