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.)
NIHON DENKOU KK
Nippon Denko Co Ltd
Original Assignee
NIHON DENKOU KK
Nippon Denko 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 NIHON DENKOU KK, Nippon Denko Co LtdfiledCriticalNIHON DENKOU KK
Priority to JP8098881ApriorityCriticalpatent/JPS57197029A/ja
Publication of JPS57197029ApublicationCriticalpatent/JPS57197029A/ja