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:
Oct. 04, 2011
Filed:
Oct. 24, 2005
Yutaka Wada, Miyagi, JP;
Masatsugu Suwabe, Miyagi, JP;
Junko Shimada, Miyagi, JP;
Toru Yano, Chiba, JP;
Keiji Oya, Saitama, JP;
Koichi Shigeno, Tokyo, JP;
Yutaka Wada, Miyagi, JP;
Masatsugu Suwabe, Miyagi, JP;
Junko Shimada, Miyagi, JP;
Toru Yano, Chiba, JP;
Keiji Oya, Saitama, JP;
Koichi Shigeno, Tokyo, JP;
Sony Corporation, Tokyo, JP;
Adeka Corporation, Tokyo, JP;
Abstract
Disclosed is to provide with an optical recording medium of a write-once type in which an excellent recording characteristic can be obtained over low speed recording to high speed recording. In an optical recording medium having a recording layer that contains an organic dye, the recording layer is configured to have at least an organic dye expressed by a general formula shown in the following chemical formula 1 (in this formula, R1 represents an alkyl group of carbon number 1 through 4, R2 and R3 represent respectively an alkyl group of carbon number 1 through 4 and a benzyl group or group forming three to six-member ring by coupling, each of Y1 and Y2 represents independently an organic group, and X represents ClO, FB, PF, and SbF) and an organic dye expressed by a general formula shown in the following chemical formula 2 (in this formula, R1 and R4 represent an alkyl group of carbon number 1 through 4, R2 and R3 represent respectively an alkyl group of carbon number 1 through 4 and a benzyl group or group forming three to six-member ring by coupling, each of Y1 and Y2 represents independently an organic group, and X represents ClO, FB, PF, and SbF).