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:
Jul. 18, 2006
Filed:
Oct. 01, 2001
Applicants:
Mitsuro Moriya, Nara, JP;
Hiromichi Ishibashi, Osaka, JP;
Inventors:
Mitsuro Moriya, Nara, JP;
Hiromichi Ishibashi, Osaka, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A recordable optical information medium includes a recording area including a guide groove on which a recording material layer is provided for forming at least one recording mark which represents first information modulated by a first modulation system; and a pit area including at least one concave and convex type pit which represents second information modulated by a second modulation system. The guide groove and the at least one pit have substantially the same depth. The first modulation system and the second modulation system are different from each other.