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:
Aug. 13, 2013
Filed:
May. 31, 2007
Koji Takazawa, Tokyo, JP;
Seiji Morita, Yokohama, JP;
Kazuyo Umezawa, Yokohama, JP;
Naoki Morishita, Yokohama, JP;
Yasuaki Ootera, Yokohama, JP;
Hideo Ando, Hino, JP;
Naomasa Nakamura, Yokohama, JP;
Koji Takazawa, Tokyo, JP;
Seiji Morita, Yokohama, JP;
Kazuyo Umezawa, Yokohama, JP;
Naoki Morishita, Yokohama, JP;
Yasuaki Ootera, Yokohama, JP;
Hideo Ando, Hino, JP;
Naomasa Nakamura, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
According to one embodiment, an optical recording medium is provided in which interlayer crosstalk is low and in which stable and high-quality recording characteristics can be obtained. To this end, in this optical recording medium, an intermediate layer whose thickness variation is managed to be equal to or less than a predetermined value is provided between a first recording part and a second recording part.