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:
Mar. 14, 1995
Filed:
Jan. 24, 1994
Applicant:
Inventors:
Aziz S Shaikh, Ventura, CA (US);
Gordon J Roberts, Parma, OH (US);
Gautam Sarkar, Santa Barbara, CA (US);
Assignee:
Ferro Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C03C / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
524494 ; 524430 ; 501-4 ; 501 11 ; 501 68 ; 501 69 ; 501 74 ;
Abstract
The present invention provides new and improved dielectric materials. In one preferred embodiment such novel dielectric material is formed by firing a composition including a glass composition comprising in weight percent from about 22% to about 45% ZnO, from about 4% to about 22% MgO, from about 1% to about 16% Al.sub.2 O.sub.3, from about 20% to about 49% SiO.sub.2, from about 2% to about 11% BaO, up to about 10% ZrO.sub.2, from about 0.05% to about 1.1% Fe.sub.2 O.sub.3 and from about 0.05% to about 0.95% PbO.