Compositions – Light transmission modifying compositions – Displaying color change
Reexamination Certificate
2007-04-04
2011-11-08
Choi, Ling (Department: 1761)
Compositions
Light transmission modifying compositions
Displaying color change
C204S298020, C423S606000, C428S220000, C451S041000
Reexamination Certificate
active
08052898
ABSTRACT:
A hydrogen gas detecting material, which changes in light absorption characteristics when exposed to an atmosphere containing hydrogen, and the coating method are characterized in that (1) the principal component of the hydrogen gas detecting material is tungsten oxide, (2) palladium is deposited on the surface of the tungsten oxide, (3) the tungsten oxide is coated on a substrate by a sputtering method involving a controlled oxygen pressure, and (4) the temperature of the substrate during coating with the tungsten oxide is room temperature (20° C.).
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International Search Report mailed on Jun. 12, 2007 in connection with International Application No. PCT/JP2007/057600.
Yonsu O et al., “Hikari Kenchisiki Suiso Gas Sensor no Sakusei to Hyoka I. Pd/W03Soshi no Kurikaeshi Kenchi Tokusei”, 1992, The Ceramic Society of Japan, Nenkai Koen Yokoshu, p. 240.
International Search Report mailed Jun. 12, 2007 in corresponding International Patent Application PCT/JP2007/057600.
Inouye Aichi
Sugimoto Masaki
Takano Katsuyoshi
Yamamoto Shunya
Yoshikawa Masahito
Ahvazi Bijan
Choi Ling
Japan Atomic Energy Agency
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