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.)
Resonac Holdings Corp
Original Assignee
Showa Denko KK
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 KKfiledCriticalShowa Denko KK
Priority claimed from EP91303533Aexternal-prioritypatent/EP0509169B1/de
Publication of DE69116132D1publicationCriticalpatent/DE69116132D1/de
Application grantedgrantedCritical
Publication of DE69116132T2publicationCriticalpatent/DE69116132T2/de