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, 2012
Filed:
Sep. 25, 2008
Kazuyo Umezawa, Yokohama, JP;
Seiji Morita, Yokohama, JP;
Koji Takazawa, Tokyo, JP;
Naomasa Nakamura, Yokohama, JP;
Naoki Morishita, Yokohama, JP;
Kazuyo Umezawa, Yokohama, JP;
Seiji Morita, Yokohama, JP;
Koji Takazawa, Tokyo, JP;
Naomasa Nakamura, Yokohama, JP;
Naoki Morishita, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
An information recording medium having a disc shape and a recording layer configured to store information by light, the information being configured to be recorded on the recording layer with a mark and a space, wherein a channel clock period, represented by T, is provided for recording the mark on the recording layer. A mark corresponding to 2T or more can be recorded, and write parameter information is recorded on a particular area of the information recording medium. The parameter information includes a first peak power value used for a standard recording speed, and a second peak power value used for an increased recording speed which is a quadruple of the standard recording speed, the second peak power value being greater than the first peak power value.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile