Compositions: ceramic – Ceramic compositions – Devitrified glass-ceramics
Reexamination Certificate
2005-08-02
2005-08-02
Group, Karl (Department: 1755)
Compositions: ceramic
Ceramic compositions
Devitrified glass-ceramics
C501S010000, C501S032000, C501S134000, C501S136000, C428S426000, C428S434000
Reexamination Certificate
active
06924245
ABSTRACT:
A glass ceramic composition which can be fired at a low temperature and which has a high dielectric constant, a relatively small thermal expansion coefficient and a small temperature coefficient of dielectric constant is provided. The glass ceramic composition contains about 5% to 75% by weight of TiO2powder, about 5% to 75% by weight of CaTiSiO5powder and about 15% to 50% by weight of glass powder.
REFERENCES:
patent: 3676351 (1972-07-01), Taki et al.
patent: 3785837 (1974-01-01), Amin
patent: 3787219 (1974-01-01), Amin
patent: 3848079 (1974-11-01), Amin
patent: 5801108 (1998-09-01), Huang et al.
patent: 6447888 (2002-09-01), Suzuki et al.
patent: 1177681 (1970-01-01), None
patent: 2000-264724 (2000-09-01), None
Abstract of Swedish Application No. SU 427406, Dec. 1974.
Abstract of Japanese Application No. 2000-264724, Jan. 2001.
Dickstein Shapiro Morin & Oshinsky LLP.
Group Karl
Murata Manufacturing Co. Ltd.
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