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.)
Sony Corp
Resonac Holdings Corp
Original Assignee
Showa Denko KK
Sony Corp
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 Showa Denko KK, Sony CorpfiledCriticalShowa Denko KK
Priority to JP24286285ApriorityCriticalpatent/JPS62103333A/ja
Publication of JPS62103333ApublicationCriticalpatent/JPS62103333A/ja
Publication of JPH0118140B2publicationCriticalpatent/JPH0118140B2/ja