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:
Jun. 25, 2002
Filed:
Feb. 22, 2000
Applicant:
Inventors:
Kun-ichi Miyazawa, Tokyo, JP;
Kunio Ito, Tokyo, JP;
Toru Kuzumaki, Kawasaki, JP;
Fumie Seki, Kunitachi, JP;
Assignee:
Tokyo, The University of, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 3/548 ; C04B 3/500 ; C04B 3/5491 ;
U.S. Cl.
CPC ...
C04B 3/548 ; C04B 3/500 ; C04B 3/5491 ;
Abstract
The invention is a novel fullerene-added lead zirconate titanate and a method of producing the same, wherein zirconium alkoxide, titanium alkoxide and lead acetate are dissolved in an organic solvent with a stabilizer to form a colloidal solution or sol. The colloidal solution is added with fullerene, gelatinized, dried and fired at a relatively low temperature, for example, 400 to 500° C., whereby a perovskite phase can effectively be formed at a temperature lower than in conventional methods.