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.

Date of Patent:
Dec. 20, 2005

Filed:

Apr. 04, 2001
Applicants:

Hiroshi Ueda, Osaka, JP;

Kenji Takauchi, Osaka, JP;

Yoshitaka Mitsui, Osaka, JP;

Motoshi Ito, Osaka, JP;

Inventors:

Hiroshi Ueda, Osaka, JP;

Kenji Takauchi, Osaka, JP;

Yoshitaka Mitsui, Osaka, JP;

Motoshi Ito, Osaka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03M013/00 ; G11B005/09 ;
U.S. Cl.
CPC ...
Abstract

An information recording apparatusincludes a defect list update sectionfor updating a defect list having a defect address registered therein which represents a position of a defect area existing in a user area, and a recording sectionfor recording information on the information recording mediumbased on the updated defect list. The defect list update sectiondetermines whether or not an area designated by the defect address registered in the defect list is a defect area; and when the area designated by the defect address is determined not to be a defect area, the defect list update sectiondeletes the defect address, registered in the defect list, from the defect list.


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