The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 07, 1999
Filed:
May. 05, 1997
Applicant:
Inventors:
Yasuyoshi Suzuki, Chiba, JP;
Hiroshi Tsuyuki, Chiba, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428426 ; 428432 ; 428469 ; 428472 ; 428701 ; 428702 ; 501 73 ; 501 74 ;
Abstract
A glass composition for a substrate with a built-in lead-dielectric material, containing up to 35 mol % calculated as Al.sub.2 O.sub.3 of aluminum oxide, 20 to 60 mol % calculated as CaO of calcium oxide, and 8 to 40 mol % calculated as SiO.sub.2 of silicon oxide.