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:
Dec. 07, 2000
Applicant:
Inventors:
Masahito Furukawa, Tokyo, JP;
Kenji Horino, Tokyo, JP;
Makoto Morita, Tokyo, JP;
Syuuzi Itoh, Tokyo, JP;
Minami Kudoh, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01L 4/108 ;
U.S. Cl.
CPC ...
H01L 4/108 ;
Abstract
An electronic part comprises a main part, a terminal electrode, and a film. The main part includes a sintered piezoelectric ceramic element, wherein a plurality of internal electrode layers and piezoelectric layers are alternately stacked. The terminal electrode is provided at an edge of the sintered piezoelectric ceramic element and electrically conducting to the internal electrodes. The film is provided on a surface of the sintered piezoelectric ceramic element and the exposed internal electrodes, and is made of a glass insulating material.