(19)

(11)

EP 0 211 897 A1

(12)

(43) Date of publication: 04.03.1987 Bulletin 1987/10 (21) Application number: 86901258.0 (22) Date of filing: 04.02.1986

(51) International Patent Classification (IPC):  C09D 5/ 23( . ) C09D 133/ 08( . ) C09D 175/ 08( . ) G11B 5/ 702( . ) C09D 133/ 04( . ) C09D 175/ 06( . ) G11B 5/ 70( . ) G11B 5/ 708( . ) (86) International application number: PCT/US1986/000239 (87) International publication number: WO 1986/004719 (14.08.1986 Gazette 1986/18)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 06.02.1985 US 19850698959 (71) Applicant: MEMOREX CORPORATION Santa Clara California 95052 (US)	(72) Inventors: JACKSON, Robert, A. San Jose, CA 95130 (US) JOESTEN, Stephen, A. Santa Clara, CA 95050 (US) IQBAL, Sikandar San Jose, CA 95138 (US) (74) Representative: Gordon, Martin, et al  G.F. REDFERN & CO., Redfern House, 149/151 Tarring Road Worthing, West Sussex BN11 4HE Worthing, West Sussex BN11 4HE (GB)