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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10380470 B1

PDFFull Text
Date of Patent:
Aug. 13, 2019

Filed:

Sep. 16, 2016

Data storage medium and manufacturing method thereof, data storage medium, data read out apparatus and data read out method

Applicant:

Dai Nippon Printing Co., Ltd., Tokyo, JP;

Inventors:

Naoko Nakata, Tokyo, JP;

Hirokazu Oda, Tokyo, JP;

Yuki Aritsuka, Tokyo, JP;

Assignee:

DAI NIPPON PRINTING CO., LTD., Tokyo, JP;

Attorney:

Oliff PLC

Primary Examiner:

Kristy A Haupt

Int. Cl.
CPC ...
G03F 7/00 (2006.01); G03F 7/30 (2006.01); G06K 7/10 (2006.01); G06K 7/14 (2006.01); G06K 19/02 (2006.01); G06K 19/06 (2006.01); G11B 7/005 (2006.01); G11B 7/2531 (2013.01); G11B 7/24097 (2013.01); G11B 7/007 (2006.01); G11B 7/24091 (2013.01); G11B 7/26 (2006.01); G03F 7/36 (2006.01); G06K 19/04 (2006.01);
U.S. Cl.
CPC ...
G06K 19/06159 (2013.01); G03F 7/0002 (2013.01); G03F 7/30 (2013.01); G03F 7/36 (2013.01); G06K 7/10712 (2013.01); G06K 7/14 (2013.01); G06K 19/02 (2013.01); G06K 19/041 (2013.01); G06K 19/06 (2013.01); G06K 19/06131 (2013.01); G11B 7/005 (2013.01); G11B 7/007 (2013.01); G11B 7/24091 (2013.01); G11B 7/24097 (2013.01); G11B 7/2531 (2013.01); G11B 7/26 (2013.01);
Abstract

A data storage medium includes a convexoconcave structure formed in a storage area which is set on a first surface of a quartz glass substrate. The storage area includes a plurality of unit storage areas which are arrayed at least in one direction, and non-data storage areas which are disposed between the unit storage areas, which are adjacent to each other. The convexoconcave structure includes unit data patterns, address patterns and boundary patterns. The unit data patterns are formed in the plurality of unit storage areas respectively in the array sequence of the unit storage areas, and the address patterns are formed in the non-data storage areas so as to correspond to each of the unit storage areas in which the unit data patterns are formed respectively.

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