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. 24, 1993
Filed:
Apr. 02, 1992
Atsushi Yoshizawa, Saitama, JP;
Takashi Chuman, Saitama, JP;
Yasushi Araki, Saitama, JP;
Shuichi Yanagisawa, Saitama, JP;
Fumio Matsui, Saitama, JP;
Pioneer Electronic Corporation, Tokyo, JP;
Abstract
An optical recording medium, comprising: a light transparent substrate, a light absorbing layer disposed on the light transparent substrate, a light reflection layer disposed on the light absorbing layer, and a protection layer disposed on the light reflection layer, wherein the protection layer has been formed by curing a photo-setting resin which is capable of providing a glass transition point of not lower than 110.degree. C., a shrinkage factor of not larger than 8%, and a water vapor permeability of not higher than 110 g/m.sup.2 .multidot.24 H after being cured. The optical recording medium having the above structure is capable of showing stable performances, even in an environment of high humidity.