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
Priority claimed from JP2412661Aexternal-prioritypatent/JPH0678312B2/ja
Priority claimed from JP2412660Aexternal-prioritypatent/JPH0653651B2/ja
Application filed by Kao CorpfiledCriticalKao Corp
Priority claimed from EP91101374Aexternal-prioritypatent/EP0441263B2/de
Application grantedgrantedCritical
Publication of ATE94378T1publicationCriticalpatent/ATE94378T1/de