Changes to Commission Regulation (EEC) No 165/90 of 23 January 1990 imposing a provisional anti-dumping duty on imports of certain types of electronic microcircuits known as drams (dynamic random access memories) originating in Japan, accepting undertakings offered by certain exporters in connection with the anti-dumping proceeding concerning imports of these products and terminating the investigation in their respect: Council Regulation (EEC) No 1361/90 of 21 May 1990 extending the provisional anti-dumping duty on imports of certain types of electronic microcircuits known as drams (dynamic random access memories) originating in Japan