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. 06, 2012
Filed:
Jun. 30, 2009
Applicants:
Yusuke Suzuki, Miyagi, JP;
Takao Kudo, Miyagi, JP;
Kazuya Hayashibe, Saitama, JP;
Hiroshi Uchiyama, Miyagi, JP;
Inventors:
Yusuke Suzuki, Miyagi, JP;
Takao Kudo, Miyagi, JP;
Kazuya Hayashibe, Saitama, JP;
Hiroshi Uchiyama, Miyagi, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 7/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
An optical information recording medium includes a recording layer that absorbs recording light in accordance with its wavelength, the recording light being condensed for information recording, and increases the temperature in the vicinity of a focus so as to form a recording mark and that has properties of increasing a light absorption amount with respect to the wavelength of the recording light by heating performed at a temperature of 120° C. or more.