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:
Apr. 03, 2018
Filed:
Dec. 15, 2015
Ngk Insulators, Ltd., Nagoya, JP;
Masayuki Uetani, Kasugai, JP;
Takaaki Koizumi, Tajimi, JP;
Izumi Masuda, Kitanagoya, JP;
Takeshi Kaku, Komaki, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A piezoelectric device is a fired body including a body partand external electrodesandA surface of the side electrodeis comprised only of a material for the side electrodeOn a surface of the surface electrodeor a surface of a connection portion where the surface electrodeand the side electrodeare connected to each other, a protrusion h extending along a direction along which the connection portion extends and sticking out in a thickness direction of the surface electrodeis provided. A region, on the surface of the surface electrodefarther from the connection portion than the protrusion h is interspersed with a plurality of exposed portions in each of which a surface of a ceramic material having lower solder wettability than a material for the surface electrodeis exposed.