OPTICAL DISK AND ITS PRODUCTION

Title:

OPTICAL DISK AND ITS PRODUCTION

Document Type and Number:

Japanese Patent JPH08306069

Kind Code:

A

Abstract:

PURPOSE: To satisfactorily mass-produce optical disks each having large capacity and excellent in signal quality.

CONSTITUTION: Pits or grooves in an optical disk are formed with a photosetting resin 202 on a substrate 203 consisting mainly of a cycloolefin polymer. At this time, a master 201 having a pattern formed with a silicon wafer is used and the surface of the substrate 203 is activated so as to enhance the adhesive strength of the photosetting resin 202 to the substrate 203.

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Inventors:

NEHASHI SATOSHI
NISHIKAWA HISAO
TAKAKUWA ATSUSHI

Application Number:

JP11297795A

Publication Date:

November 22, 1996

Filing Date:

May 11, 1995

Export Citation:

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Assignee:

SEIKO EPSON CORP

International Classes:

B29D17/00; G11B7/24; G11B7/2405; G11B7/24073; G11B7/24079; G11B7/2433; G11B7/2533; G11B7/2538; G11B7/2542; G11B7/26; (IPC1-7): G11B7/24; G11B7/24; G11B7/26

Attorney, Agent or Firm:

Kisaburo Suzuki (1 outside)

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