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:
Nov. 13, 2007
Filed:
Jun. 27, 2003
Takao Sawabe, Tokyo-to, JP;
Ryuichiro Yoshimura, Tokorozawa, JP;
Junichi Yoshio, Tokorozawa, JP;
Akihiro Tozaki, Tsurugashima, JP;
Yoshiaki Moriyama, Tsurugashima, JP;
Kaoru Yamamoto, Tsurugashima, JP;
Takao Sawabe, Tokyo-to, JP;
Ryuichiro Yoshimura, Tokorozawa, JP;
Junichi Yoshio, Tokorozawa, JP;
Akihiro Tozaki, Tsurugashima, JP;
Yoshiaki Moriyama, Tsurugashima, JP;
Kaoru Yamamoto, Tsurugashima, JP;
Pioneer Electric Corporation, Tokyo-to, JP;
Abstract
An information record medium is provided with a first recording layer on which a data group is recorded, and a second recording layer on which a data group is recorded. On the first recording layer, a lead-in area, management information for the whole of recording information, and the data group are recorded. On the second recording layer, a lead-out area and a data group are recorded. The lead-in area is recorded at the inner radius side of the information record medium. The lead-out area is recorded at the inner radius side of the information record medium. The medium is further provided with a mid area at the outer radius side of the first recording layer, and the other mid area at the outer radius side of the second recording layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile