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 JP59111703Aexternal-prioritypatent/JPS60254366A/ja
Priority claimed from JP59118650Aexternal-prioritypatent/JPS60262264A/ja
Application filed by Sony CorpfiledCriticalSony Corp
Priority claimed from EP85303696Aexternal-prioritypatent/EP0163503B1/de
Application grantedgrantedCritical
Publication of ATE73559T1publicationCriticalpatent/ATE73559T1/de