(19)
(11) EP 0 404 575 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
17.04.1991 Bulletin 1991/16

(43) Date of publication A2:
27.12.1990 Bulletin 1990/52

(21) Application number: 90306805.4

(22) Date of filing: 21.06.1990
(51) International Patent Classification (IPC)5: G03G 5/02, G03G 5/024
(84) Designated Contracting States:
DE FR GB

(30) Priority: 22.06.1989 JP 160058/89
25.08.1989 JP 219444/89
30.01.1990 JP 19476/90
31.01.1990 JP 22834/90

(71) Applicant: VICTOR COMPANY OF JAPAN, LTD.
Yokohama-Shi, Kanagawa-Ken (JP)

(72) Inventors:
  • Konno, Toshio, 502, Taguchi Biruto
    Yokohama-Shi, Kanagawa-Ken (JP)
  • Shimada, Tadayuki
    Yokosuka-Shi, Kanagawa-Ken (JP)
  • Nakano, Atsushi
    Yokohama-Shi, Kanagawa-Ken (JP)

(74) Representative: Crawford, Andrew Birkby et al
A.A. THORNTON & CO. Northumberland House 303-306 High Holborn
London WC1V 7LE
London WC1V 7LE (GB)


(56) References cited: : 
   
       


    (54) Recording medium


    (57) There is provided an information memory medium comprising a memory layer composed of liquid crystal having molecules and a polymer member having minute pores in which the liquid crystal is contained causing the liquid crystal having a threshold potential thereby the molecules of the liquid crystal respond to be oriented only when an applied electric field is over the threshold potential, and the molecules thus oriented are maintained after the applied electric field is removed.







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