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:
Jan. 20, 2004
Filed:
Aug. 12, 2002
Applicant:
Inventors:
Neil M. Alford, London, GB;
Stuart J. Penn, Wickford, GB;
Assignee:
South Bank University Enterprises Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 3/510 ;
U.S. Cl.
CPC ...
C04B 3/510 ;
Abstract
Sintered alumina of Q value of greater than 25,000 and up to and greater than 45,000 at 10 GHz and at 25° C., useful in useful in dielectric resonators can be obtained by sintering alumina powders with low level of impurities at between 1500° C. and 1600° C. until a density of at least 98% of its theoretical value is obtained.