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
Tokyo Electric Power Co Holdings Inc
Original Assignee
NGK Insulators Ltd
Tokyo Electric Power Co Inc
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, Tokyo Electric Power Co IncfiledCriticalNGK Insulators Ltd
Priority to JP1989129260UpriorityCriticalpatent/JPH0729527Y2/ja
Publication of JPH0368319UpublicationCriticalpatent/JPH0368319U/ja
Application grantedgrantedCritical
Publication of JPH0729527Y2publicationCriticalpatent/JPH0729527Y2/ja