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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric 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 Sumitomo Electric Industries LtdfiledCriticalSumitomo Electric Industries Ltd
Priority to JP7941680ApriorityCriticalpatent/JPS574340A/ja
Priority to CA000377679Aprioritypatent/CA1181501A/en
Priority to BR8103089Aprioritypatent/BR8103089A/pt
Priority to US06/263,919prioritypatent/US4463219A/en
Priority to IT48493/81Aprioritypatent/IT1170982B/it
Publication of JPS574340ApublicationCriticalpatent/JPS574340A/ja
Publication of JPS6148201B2publicationCriticalpatent/JPS6148201B2/ja
Priority to US07/225,661prioritypatent/US4966635A/en