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:
Feb. 08, 2011
Filed:
Sep. 25, 2008
Hiroaki Wakayama, Ama-gun, JP;
Kazuo Kobayashi, Kakamigahara, JP;
Hiroaki Wakayama, Ama-gun, JP;
Kazuo Kobayashi, Kakamigahara, JP;
Brother Kogyo Kabushiki Kaisha, Nagoya, JP;
Abstract
A method for producing an ink-jet head includes forming a buffer layer on an upper surface of a vibration plate, and forming a piezoelectric precursor layer on an entire upper surface of a surface layer, the piezoelectric precursor layer being converted into a piezoelectric sheet. The buffer layer is formed of a material with which mutual diffusion between the piezoelectric precursor layer and the buffer layer is hardly caused as compared with mutual diffusion between the piezoelectric precursor layer and the vibration plate with which no buffer layer is provided. A stack, in which the buffer layer and the piezoelectric precursor layer are formed, is heated at a predetermined temperature, and the piezoelectric precursor layer is calcinated to form the piezoelectric sheet. It is possible to suppress the deterioration of the performance of the piezoelectric member.