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.)
Toshiba Corp
Fuji Electric Co Ltd
Mitsubishi Electric Corp
Panasonic Holdings Corp
Tokyo Electric Power Co Holdings Inc
Original Assignee
Toshiba Corp
Tokyo Electric Power Co Inc
Fuji Electric Co Ltd
Mitsubishi Electric Corp
Matsushita Electric Industrial Co 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 Toshiba Corp, Tokyo Electric Power Co Inc, Fuji Electric Co Ltd, Mitsubishi Electric Corp, Matsushita Electric Industrial Co LtdfiledCriticalToshiba Corp
Priority to JP12508878ApriorityCriticalpatent/JPS5552121A/ja
Publication of JPS5552121ApublicationCriticalpatent/JPS5552121A/ja
Publication of JPS6118770B2publicationCriticalpatent/JPS6118770B2/ja