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Priority claimed from JP12530388Aexternal-prioritypatent/JPH089543B2/en
Priority claimed from JP18228188Aexternal-prioritypatent/JP2760514B2/en
Application filed by Ueno Seiyaku Oyo Kenkyujo KkfiledCriticalUeno Seiyaku Oyo Kenkyujo Kk
Priority claimed from EP89305163Aexternal-prioritypatent/EP0343904B1/en
Application grantedgrantedCritical
Publication of ATE88637T1publicationCriticalpatent/ATE88637T1/en