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.:
Date of Patent:
Apr. 13, 2010
Filed:
Jan. 13, 2006
Tohru Kanegae, Saitama, JP;
Masahiro Kato, Saitama, JP;
Eisaku Kawano, Saitama, JP;
Masahiro Miura, Saitama, JP;
Shoji Taniguchi, Saitama, JP;
Tohru Kanegae, Saitama, JP;
Masahiro Kato, Saitama, JP;
Eisaku Kawano, Saitama, JP;
Masahiro Miura, Saitama, JP;
Shoji Taniguchi, Saitama, JP;
Pioneer Corporation, Tokyo, JP;
Abstract
An information recording medium () includes (i) a first recording layer (L0 layer) having a first track and (ii) a second recording layer (L1 layer) having a spiral or coaxial second track sharing the rotation center with the first track. (iii) The first recording layer has a first point (point Bx) indicated by a first address. (iv) The second recording layer has a second point (point Dx) which can be defined according to a predetermined positional relationship (allowable area:) with respect to the first point (point Bx).