Dielectric ceramic composition

Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C501S138000, C501S139000, C361S321400, C361S321500, C428S471000, C428S697000, C343S7000MS, C343S785000

Reexamination Certificate

active

06949487

ABSTRACT:
It is an object of the invention to provide a dielectric ceramic composition which enables its firing temperature to be lowered and which has an excellent electrical properties, particularly temperature dependence of resonance frequencies. A dielectric ceramic composition according to the invention comprises an oxide of a barium titanate family having a composition formula represented as BaTixO2x+1(3.5≦x≦5.0); a first chemical element group consisting of at least one kind of alkaline-earth metals, silicon, zinc, aluminium, titanium, copper, bismuth and molybdenum; and a second chemical element group consisting of at least one kind of alkali metals and boron. A weight ratio of a total of each chemical element in the first and second chemical element groups to the oxide (the total of each chemical element/the oxide) is between 45/55 and 65/35 inclusive when the ratio is determined by converting said each chemical element to its oxide. A weight ratio of the second chemical element group to the first chemical element group (the second chemical element group/the first chemical element group) is between 0.01 and 0.10 inclusive when the ratio is determined by converting said each chemical element to its oxide.

REFERENCES:
patent: 5378663 (1995-01-01), Abe et al.
patent: 5635433 (1997-06-01), Sengupta
patent: 6613705 (2003-09-01), Feltz et al.
patent: 6642167 (2003-11-01), Sugimoto et al.
patent: 6797661 (2004-09-01), Mikkenie et al.
patent: 6828266 (2004-12-01), Park et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Dielectric ceramic composition does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dielectric ceramic composition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dielectric ceramic composition will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3418866

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.