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:
Sep. 10, 2013
Filed:
Jan. 28, 2009
Hideo Kusada, Osaka, JP;
Rie Kojima, Osaka, JP;
Takashi Nishihara, Osaka, JP;
Noboru Yamada, Osaka, JP;
Hideo Kusada, Osaka, JP;
Rie Kojima, Osaka, JP;
Takashi Nishihara, Osaka, JP;
Noboru Yamada, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
An optical information recording medium of the present invention includes at least a recording layer () that allows information to be recorded thereon and/or reproduced therefrom by being irradiated with a laser beam, and a transmittance adjusting layer () in this order from an incident side of the laser beam (). In the optical information recording medium of the present invention, the transmittance adjusting layer () contains Bi, Ti, and O and with a composition of Bi, Ti, and O contained in the transmittance adjusting layer () being denoted as BiTiO, in atomic number ratio, x, y, and z satisfy 0.07≦x≦0.35, 0.07≦y≦0.28, 0.56≦z≦0.70, and x+y+z=1. Or the transmittance adjusting layer () contains BiOand TiO, and with a composition of BiOand TiOcontained in the transmittance adjusting layer () being denoted as (BiO)(TiO), in molar ratio, α and β satisfy 0.2≦α≦0.7, 0.3≦β≦0.8, and α+β=1.