METHOD AND DEVICE FOR MANUFACTURING OPTICAL MEMORY ELEMENT

Title:

METHOD AND DEVICE FOR MANUFACTURING OPTICAL MEMORY ELEMENT

Document Type and Number:

Japanese Patent JPH06318344

Kind Code:

A

Abstract:

PURPOSE: To efficiently manufacture a magneto-optical disk where a pregroove is formed directly on a recording medium layer and the recording medium layer possesses large perpendicular magnetic anisotropy.

CONSTITUTION: A mixture 4a dispersing magnetic material particles into resin is applied to a film base 1. Then, the pregroove is formed on the applied mixture 4a by pressing with a stamper 10 with a recessed shape while bending the film base 1 applied with the mixture 4a with the cylindrical surface of a pressurizing-contact roller 11. Then, the film base 1 is returned to a flat state by curing the mixture 4a, and the magnetic material particles dispersed into the mixture 4a are compressed in a direction along the film base 1.

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Inventors:

ISONO HITOSHI
INUI TETSUYA
OTA KENJI

Application Number:

JP10683793A

Publication Date:

November 15, 1994

Filing Date:

May 07, 1993

Export Citation:

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Assignee:

SHARP KK

International Classes:

G11B11/10; G11B7/26; G11B11/105; (IPC1-7): G11B11/10

Attorney, Agent or Firm:

Kenzo Hara

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