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. 30, 2003
Filed:
Nov. 27, 2000
Applicant:
Inventors:
Assignee:
Shin & Kim, Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 3/5491 ;
U.S. Cl.
CPC ...
C04B 3/5491 ;
Abstract
There is disclosed a method of fabricating a piezoelectric ceramics. It can obtain a small grain size and a fine grain phase by forming a combined powder being major components, stirring the combined powder with (COOH) water solution, dropping a Pb(NO ) water solution into the stirred powder, and forming a PZT powder by calcinations and sintering processes.