Stock material or miscellaneous articles – Circular sheet or circular blank
Reexamination Certificate
2011-05-31
2011-05-31
Mulvaney, Elizabeth (Department: 1785)
Stock material or miscellaneous articles
Circular sheet or circular blank
C428S064400, C430S270100
Reexamination Certificate
active
07951442
ABSTRACT:
A thin film for a reflection film or for a semi-transparent reflection film, having a compound phase formed of at least one chemical compound selected from the group consisting of a nitride, an oxide, a composite oxide, a nitroxide, a carbide, a sulfide, a chloride, a silicide (excluding silicon), a fluoride, a boride, a hydride, a phosphide, a selenide and a telluride of aluminum, magnesium, tin, zinc, indium, titanium, zirconium, manganese and silicon, dispersed in a matrix formed of silver or a silver alloy. The thin film may disperse at least one compound selected from the group consisting of a nitride, an oxide, a composite oxide, a nitroxide, a carbide, a sulfide, a chloride, a silicide, a fluoride, a boride, a hydride, a phosphide, a selenide and a telluride of silver, gallium, palladium or copper, in addition to aluminum or the like, therein. The thin film of the present invention keeps its reflectance without significant loss even after a long period of use, and can prolong the life of various devices which comprise the thin film as a reflection film, such as an optical recording medium and a display. The thin film can be also applied to semi-reflective/semi-transparent film used in the optical recording medium.
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Obata Tomokazu
Yanagihara Hiroshi
Mulvaney Elizabeth
Roberts & Roberts, LLP
Tanaka Kikinzoku Kogyo K.K.
LandOfFree
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