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. 17, 2010
Filed:
Mar. 06, 2006
Michikazu Horie, Minato-ku, JP;
Yutaka Kurose, Minato-ku, JP;
Hideyuki Kubo, Minato-ku, JP;
Kenjirou Kiyono, Minato-ku, JP;
Michikazu Horie, Minato-ku, JP;
Yutaka Kurose, Minato-ku, JP;
Hideyuki Kubo, Minato-ku, JP;
Kenjirou Kiyono, Minato-ku, JP;
Mitsubishi Kagaku Media Co., Ltd., Tokyo, JP;
Abstract
By use of a substrate which can be stably formed and has a relatively small groove depth, a very high density optical recording medium having good recording/reading characteristics is provided. In an optical recording medium of a surface incidence type, in which a reflective layer, a recording layer containing a dye as a main component and a cover layer are sequentially formed on a substrate having guide grooves formed therein, a guide groove part on a far side from a plane of incidence of a recording/reading light beam on the cover layer is set as a recording groove part, and reflected light intensity in a recorded pit portion formed in the recording groove part is increased by a phase shift and is set higher than reflected light intensity in unrecorded.