Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
77 words
A dielectric porcelain material having a composition falling in the quadrilateral area defined by connecting points A, B, C and D in the ternary diagram of components Al 2 O 3 , CaTiO 3 and SrTiO 3 in the drawing wherein the points A, B, C and D are represented in mol% as follows: ______________________________________
Al.sub.2 O.sub.3 CaTiO.sub.3
SrTiO.sub.3
______________________________________
A 0.99 0.01 0
B 0.96 0.035 0.005
C 0.91 0.04 0.05
D 0.91 0.01 0.08.
______________________________________
Claim 2
Dependent Claim
77 words
A dielectric porcelain material having a composition falling in the quadrilateral area defined by connecting points A, B, C and D in the ternary diagram of components Al 2 O 3 , CaTiO 3 and SrTiO 3 in the drawing wherein the points A, B, C and D are represented in mol% as follows: ______________________________________
Al.sub.2 O.sub.3 CaTiO.sub.3
SrTiO.sub.3
______________________________________
A 0.99 0.01 0
B 0.96 0.035 0.005
C 0.91 0.04 0.05
D 0.91 0.01 0.08.
______________________________________
Claim 3
Dependent Claim
35 words
The dielectric porcelain material of claim 1 containing minerals selected from Al 2 O 3 , CaTiO 3 , 6Al 2 O 3 .CaO, 16Al 2 O 3 .SrO and 6Al 2 O 3 .SrO.
Claim 4
Dependent Claim
16 words
The dielectric porcelain material of claim 1 having a thermal coefficient τf between -15 and +15.
Claim 5
Dependent Claim
53 words
The dielectric porcelain material of claim 2 wherein the thermal coefficient τf is measured in the temperature range of from 25° to 85° C. and calculated using the equation: τf=-1/2τε-α wherein τε represents the temperature difference of the dielectric constant and α represents the coefficient of linear thermal expansion of the porcelain material.
Claim 6
Dependent Claim
15 words
The dielectric porcelain material of claim 1 having a no-load Q not less than 4000.
Claim 7
Dependent Claim
35 words
The dielectric porcelain material of claim 1 containing minerals selected from Al 2 O 3 , CaTiO 3 , 6Al 2 O 3 .CaO, 16Al 2 O 3 .SrO and 6Al 2 O 3 .SrO.
Claim 8
Dependent Claim
16 words
The dielectric porcelain material of claim 1 having a thermal coefficient τf between -15 and +15.
Claim 9
Dependent Claim
50 words
The dielectric porcelain material of claim 6 wherein the thermal coefficient τf is measured in the temperature range of from 25° to 85° C. and calculated using the equation: τf=-1/2τε-α wherein τε represents the temperature difference of the dielectric constant and α represents the linear expansion of the porcelain material.
Claim 10
Dependent Claim
15 words
The dielectric porcelain material of claim 1 having a no-load Q not less than 4000.