Title:
DATA STORAGE MEDIUM, METHOD FOR MANUFACTURING SAME, MEDIUM FOR DATA STORAGE, DATA READING DEVICE, AND DATA READING METHOD
Document Type and Number:
WIPO Patent Application WO/2017/047737
Kind Code:
A1
Abstract:
In the present invention, a data storage medium is provided with a structure that has protrusions and recesses, said structure being in a storage region established on a first surface of a quartz glass substrate. The storage region includes a plurality of unitary storage regions aligned side-by-side in at least one direction, and data non-storage regions positioned between adjacent unitary storage regions. The structure that has protrusions and recesses includes unit data patterns, address patterns, and boundary patterns. The unit data patterns are formed in the plurality of unitary storage regions in the order in which said regions are lined up, and the address patterns are formed in the data non-storage regions correspondingly with respect to the unitary storage regions in which the unit data patterns are formed.
Inventors:
NAKATA NAOKO (JP)
ODA HIROKAZU (JP)
ARITSUKA YUKI (JP)
ODA HIROKAZU (JP)
ARITSUKA YUKI (JP)
Application Number:
PCT/JP2016/077407
Publication Date:
March 23, 2017
Filing Date:
September 16, 2016
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
G11B7/2531; G06K7/14; G06K19/06; G11B7/005; G11B7/007; G11B7/24091; G11B7/24097; G11B7/26
Foreign References:
| US20140341009A1 | 2014-11-20 | |||
| JP2003296972A | 2003-10-17 | |||
| JPH11175991A | 1999-07-02 | |||
| JP2003006944A | 2003-01-10 | |||
| JP2010055663A | 2010-03-11 | |||
| JP2004185779A | 2004-07-02 | |||
| JP2009289386A | 2009-12-10 |
Other References:
See also references of EP 3352171A4
Attorney, Agent or Firm:
OTA Masataka et al. (JP)
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