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:
Mar. 22, 2016
Filed:
Feb. 01, 2012
Masami Hasegawa, Konan, JP;
Satoshi Hirayama, Ichinomiya, JP;
Naoki Kito, Nagoya, JP;
NGK SPARK PLUG CO., LTD., Nagoya, JP;
Abstract
A wiring substrate includes a substrate main body which is formed of a ceramic laminate and has a rectangular shape in plan view, and which has a front surface and a back surface and has four side surfaces, each being located between the front surface and the back surface, and having a groove surface located on a side toward the front surface and a fracture surface located on a side toward the back surface; and a metalized layer which is formed on the front surface of the substrate main body so as to extend along the four side surfaces, and which has a rectangular frame shape in plan view, wherein a horizontal surface of the ceramic laminate of the substrate main body is exposed between the metalized layer and the groove surface of each side surface of the substrate main body.