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:
Jan. 10, 2006
Filed:
Mar. 04, 2004
Isao Satoh, Neyagawa, JP;
Yoshihisa Fukushima, Osaka, JP;
Yuji Takagi, Kadoma, JP;
Yasushi Azumatani, Neyagawa, JP;
Hiroshi Hamasaka, Nishinomiya, JP;
Isao Satoh, Neyagawa, JP;
Yoshihisa Fukushima, Osaka, JP;
Yuji Takagi, Kadoma, JP;
Yasushi Azumatani, Neyagawa, JP;
Hiroshi Hamasaka, Nishinomiya, JP;
Matsushita Electric Industrial Co., Ltd., Osaka-fu, JP;
Abstract
A multi-layered optical disk comprising a plurality of recording layers accumulated in the thickness direction wherein a light beam is focused on one of tracks of one of the layers thereby to record and reproduce data, the optical disk being characterized in that recording layers each have an identification section storing an address of the recording layer which the identification section belongs to.