Title:
OPTICAL DISK CARTRIDGE
Document Type and Number:
WIPO Patent Application WO/2004/109695
Kind Code:
A1
Abstract:
An optical disk cartridge capable of receiving an optical disk having a substrate and a light transmitting layer thinner than the substrate and of controlling its warping to within predetermined limits. An optical disk cartridge (32) has an opening (20) on one thickness-wise side and an opening (34) on the other side, the area of each of these openings being not less than 1/4 of the area of an optical disk (16). Further, the ratio of the area of the opening (20) to the area of the opening (34) is from 1/4 to 4.
Inventors:
YAMADA TAKASHI (JP)
KOMAKI TSUYOSHI (JP)
YAMAGA KENJI (JP)
KOMAKI TSUYOSHI (JP)
YAMAGA KENJI (JP)
Application Number:
PCT/JP2004/007622
Publication Date:
December 16, 2004
Filing Date:
June 02, 2004
Export Citation:
Assignee:
TDK CORP (JP)
YAMADA TAKASHI (JP)
KOMAKI TSUYOSHI (JP)
YAMAGA KENJI (JP)
YAMADA TAKASHI (JP)
KOMAKI TSUYOSHI (JP)
YAMAGA KENJI (JP)
International Classes:
G11B23/03; (IPC1-7): G11B23/03
Domestic Patent References:
| WO2002056313A1 | 2002-07-18 |
Foreign References:
| JP2003109349A | 2003-04-11 | |||
| JPH0467486A | 1992-03-03 | |||
| JPH0887858A | 1996-04-02 | |||
| JP2000339900A | 2000-12-08 | |||
| JP2003137574A | 2003-05-14 | |||
| JPH032483U | 1991-01-11 |
Attorney, Agent or Firm:
Matsuyama, Keisuke (10-12 Yoyogi 2-chom, Shibuya-ku Tokyo 53, JP)
Download PDF: