Dielectric ceramic composition for high frequency and dielectric resonator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 11, 2003
Grant Date -
Aug 22, 2002
app pub date -
Nov 23, 2001
filing date -
Dec 20, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dielectric ceramic composition for high frequency is obtained by using La and/or Nd in the main composition and iron as the additive. The main composition is expressed by the general formula x(Ca.sub.y TiO.sub.2+y).multidot.(1-x)(Ln.sub.z Al.sub.2-z O.sub.3) where Ln is at least one rare earth element containing La and/or Nd, and 0.600.ltoreq.x.ltoreq.0.730, 0.950.ltoreq.y.ltoreq.1.050, 0.980.ltoreq.z.ltoreq.1.030, and 0.01 to 0.5 parts by weight of iron as Fe.sub.2 O.sub.3 is added to 100 parts by weight of the main composition. NiO may be comprised together with the Fe.sub.2 O.sub.3.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully