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 8320068 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 27, 2012

Filed:

Jan. 23, 2012
Applicant:

Kiyotada Ito, Hiratsuka, JP;

Inventor:

Kiyotada Ito, Hiratsuka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/09 (2006.01); G11B 21/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

In some implementations, a recording medium includes a plurality of data areas, a plurality of data area separating sections, and one or more blank zones. Each data area is configured to store data. Each data area separating section is disposed between the data areas and extends in parallel with respect to the data areas. Each data area separating section is configured to prevent data from being written into the data area separating section. Each blank zone extends in a direction perpendicular to the data areas and is configured to record written data.


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