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:
Nov. 27, 2012
Filed:
Dec. 09, 2009
Masahiko Kimura, Kusatsu, JP;
Kosuke Shiratsuyu, Omihachiman, JP;
Toshikazu Takeda, Omihachiman, JP;
Nobuyuki Wada, Yasu, JP;
Masahiko Kimura, Kusatsu, JP;
Kosuke Shiratsuyu, Omihachiman, JP;
Toshikazu Takeda, Omihachiman, JP;
Nobuyuki Wada, Yasu, JP;
Murata Manufacturing Co., Ltd., Nagaokakyo-Shi, JP;
Abstract
A method for manufacturing a piezoelectric element that includes a piezoelectric ceramic body containing an internal electrode. The piezoelectric ceramic body is mainly made of a perovskite complex oxide containing an alkali metal niobate-based compound containing at least one element selected from among K, Li, and Na. The internal electrode is made of a base metal material, such as Ni or Cu. The piezoelectric element is produced by co-sintering the internal electrode and the piezoelectric ceramic body in a reducing atmosphere.