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.)
NGK Insulators Ltd
Tohoku Electric Power Co Inc
Chugoku Electric Power Co Inc
Chubu Electric Power Co Inc
Hokuriku Electric Power Co
Tokyo Electric Power Co Holdings Inc
Original Assignee
NGK Insulators Ltd
Tohoku Electric Power Co Inc
Tokyo Electric Power Co Inc
Chugoku Electric Power Co Inc
Chubu Electric Power Co Inc
Hokuriku Electric Power Co
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 NGK Insulators Ltd, Tohoku Electric Power Co Inc, Tokyo Electric Power Co Inc, Chugoku Electric Power Co Inc, Chubu Electric Power Co Inc, Hokuriku Electric Power CofiledCriticalNGK Insulators Ltd
Priority to JP22040683ApriorityCriticalpatent/JPS60111195A/ja
Publication of JPS60111195ApublicationCriticalpatent/JPS60111195A/ja
Publication of JPH0254919B2publicationCriticalpatent/JPH0254919B2/ja