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. 03, 2010
Filed:
Apr. 25, 2005
Michiaki Shinotsuka, Hiratsuka, JP;
Masaru Shinkai, Yokohama, JP;
Hiroyuki Iwasa, Yokohama, JP;
Tatsuo Mikami, Kanagawa, JP;
Yuki Nakamura, Machida, JP;
Tohru Yashiro, Ebina, JP;
Michiaki Shinotsuka, Hiratsuka, JP;
Masaru Shinkai, Yokohama, JP;
Hiroyuki Iwasa, Yokohama, JP;
Tatsuo Mikami, Kanagawa, JP;
Yuki Nakamura, Machida, JP;
Tohru Yashiro, Ebina, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
The object of the present invention is to provide an optical recording medium which comprises a substrate, and a first information layer and a second information layer disposed on the substrate, and an intermediate layer disposed between the first information layer and the second information layer, wherein any one of recording and reproducing is performed in the first information layer and the second information layer by irradiating a laser beam from the first information layer side, the second information layer comprises a protective layer, a second dye layer which comprises an organic dye, an oxidized layer, and a reflective layer in this order from the laser beam irradiation side, and the oxidized layer comprises an oxide which is a material constituting the reflective layer.