Optical: systems and elements – Protection from moisture or foreign particle
Reexamination Certificate
2006-02-28
2006-02-28
Juba, Jr., John (Department: 2872)
Optical: systems and elements
Protection from moisture or foreign particle
C359S884000, C427S162000, C427S163100, C427S372200, C428S432000, C428S699000
Reexamination Certificate
active
07004591
ABSTRACT:
A coating agent including photocatalyst particles dispersed in a titanium peroxide solution obtainable by causing titanium hydroxide (orthotitanic acid) gel to act with hydrogen peroxide being used as a material for the photocatalyzer film is used to a photocatalyzer film having photocatalyst particles supported therein. By forming a porous hydrophilic substance film on the photocatalyzer film, the defects of the film caused by the wiping can be prevented. Also, a film formed by using the coating agent including photocatalyst particles dispersed in a titanium peroxide solution at a temperature of from normal room temperature to 200° C. is of high porosity in comparison with a film formed at a higher temperature and with a film not having a photocatalyst particles dispersed therein. Consequently, the photocatalyzer film and the hydrophilic substance film have good adhesion property when use with each other.
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Japanese Patent Application Publication No. JP 2000-01668, filed Jul. 1, 1998, with English Abstract. with machine-assisted translation.
Kobayashi Masaki
Kuzuya Norihiko
Jr. John Juba
Murakami Corporation
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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