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US 2003/0165404 A1Published application
Ozone indicator and method of measuring ozone concentration
OwnerTakeshi Omatsu, Satoshi Maruyamainventors
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Abstract
There is provided an ozone indicator capable of measuring ozone concentration even in an ozone atmosphere of high ozone concentration. The invention relates to an ozone indicator comprising at least (1) a color-change layer comprised of an ozone sensitive ink and (2) an overcoat layer formed on part or the whole of the surface of the above color-change layer and to a method of measuring ozone concentration by using the same.
Claims12
An ozone indicator comprising at least (1) a color-change layer comprised of an ozone sensitive ink and (2) an overcoat layer formed on part or the whole of the surface of said color-change layer.
Dependencies are inferred from the claim text.