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:
Apr. 30, 2013
Filed:
Jan. 10, 2008
Tohru Yashiro, Yokosuka, JP;
Fumiya Ohmi, Kawasaki, JP;
Satoshi Mizukami, Sagamihara, JP;
Yuki Nakamura, Machida, JP;
Masahiro Hayashi, Atsugi, JP;
Ippei Matsumoto, Yokohama, JP;
Tohru Yashiro, Yokosuka, JP;
Fumiya Ohmi, Kawasaki, JP;
Satoshi Mizukami, Sagamihara, JP;
Yuki Nakamura, Machida, JP;
Masahiro Hayashi, Atsugi, JP;
Ippei Matsumoto, Yokohama, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
The present invention provides an optical recording material allows for obtaining excellent recording signal properties even at high-speed recording and is excellent in durability in both a single-sided single layer optical recording medium and a single-sided two-layer optical recording medium having a first recording layer and a second recording layer. The optical recording material contains a cyanine compound having a specific structure and a squarylium compound as dyes for optical recording layers.