Title:
INFORMATION MEDIUM, PRODUCTION METHOD THEREFOR, REPRODUCTION CONTROL METHOD AND DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2002/082434
Kind Code:
A1
Abstract:
An information medium comprising a reproduction-only area having unevenness formed by an injection molding method, for recording information to be reproduced, and a reproduction control layer laminated on the reproduction-only area and having the status thereof changed by light irradiation, wherein a reproduction control method comprises the step of determining a reproduction-inhibited element of information in the above information, and the step of irradiating, with light, the position in the reproduction-only area that corresponds to the reproduction-inhibited element of information to change the reproduction control layer from a reproduction allowable status that enables the reproduction of the above information to a reproduction inhibited status that disables the reproduction of the information. The information medium, a production method therefor and a drive method are also provided.
More Like This:
Inventors:
NAGANO HIDEKI (JP)
SHIMAZAKI KATSUSUKE (JP)
IIDA TAMOTSU (JP)
INABA AKIRA (JP)
SHIMAZAKI KATSUSUKE (JP)
IIDA TAMOTSU (JP)
INABA AKIRA (JP)
Application Number:
PCT/JP2002/003340
Publication Date:
October 17, 2002
Filing Date:
April 03, 2002
Export Citation:
Assignee:
HITACHI MAXELL (JP)
NAGANO HIDEKI (JP)
SHIMAZAKI KATSUSUKE (JP)
IIDA TAMOTSU (JP)
INABA AKIRA (JP)
NAGANO HIDEKI (JP)
SHIMAZAKI KATSUSUKE (JP)
IIDA TAMOTSU (JP)
INABA AKIRA (JP)
International Classes:
G11B7/005; G11B7/007; G11B7/2403; G11B7/26; (IPC1-7): G11B7/007
Foreign References:
| JPH09231612A | 1997-09-05 | |||
| JPH0520706A | 1993-01-29 | |||
| JPH11312363A | 1999-11-09 | |||
| JP2000207830A | 2000-07-28 | |||
| JP2000347696A | 2000-12-15 | |||
| JP2001067733A | 2001-03-16 | |||
| JPS6228944A | 1987-02-06 |
Attorney, Agent or Firm:
Fujimoto, Ryosuke (9th Floor 9-4, Hatchobori 4-chom, Chuo-ku Tokyo, JP)
Download PDF: