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:
Mar. 16, 2010
Filed:
Sep. 29, 2004
Takuya Tsukagoshi, Sagamihara, JP;
Jiro Yoshinari, Tokyo, JP;
Hideaki Miura, Tokyo, JP;
Tetsuro Mizushima, Moriguchi, JP;
Takuya Tsukagoshi, Sagamihara, JP;
Jiro Yoshinari, Tokyo, JP;
Hideaki Miura, Tokyo, JP;
Tetsuro Mizushima, Moriguchi, JP;
TDK Corporation, Tokyo, JP;
Abstract
A holographic recording medium in which a thick holographic recording layer is formed without the use of multilayering and without accompanying thickness unevenness, scattering, and nonuniformity of dynamic range, and a method for manufacturing the same. The holographic recording mediumis configured by sandwiching a hybrid material layerand a photopolymer layerbetween first and second substratesand. The hybrid material layercontains an inorganic glass and a photopolymer as main ingredients. The photopolymer layersubjected to heat or ultraviolet curing is provided on the dried hybrid material layersuch that the combined thickness of this hybrid material layerand the photopolymer layeris uniform. The second substrateis bonded and fixed to this photopolymer layerserving as a bonding layer.