Compositions: ceramic – Ceramic compositions – Devitrified glass-ceramics
Reexamination Certificate
2006-03-21
2006-03-21
Group, Karl (Department: 1755)
Compositions: ceramic
Ceramic compositions
Devitrified glass-ceramics
C501S010000
Reexamination Certificate
active
07015160
ABSTRACT:
Glass powder for a dielectric material has a nature that, when fired, diopside (CaMgSi2O6) and at least one of titanite (CaTi(SiO4)O) and titania (TiO2) are precipitated. Preferably, the glass powder has a composition including SiO2, CaO, MgO, and TiO2and the total content of these components is 80 mass % or more. Preferably, the glass powder comprises, by mass percent, 35–65% SiO2, 10–30% CaO, 10–20% MgO, and 12–30% TiO2.
REFERENCES:
patent: 3279932 (1966-10-01), Earl
patent: 3758705 (1973-09-01), Schmid
patent: 6232251 (2001-05-01), Terashi et al.
patent: 10-120436 (1998-05-01), None
Nishikawa Yoshikatsu
Umayahara Yoshio
Collard & Roe P.C.
Group Karl
Nippon Electric Glass Co. Ltd.
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