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:
Aug. 09, 2016
Filed:
Dec. 20, 2012
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi-ken, JP;
Hiroaki Yamamoto, Kitanagoya, JP;
Yoshitaka Yoshida, Kounan, JP;
Takatoshi Tojo, Nishikasugai-gun, JP;
Naoki Kito, Nagoya, JP;
Kazushige Akita, Nagoya, JP;
Jun Suzuki, Nagoya, JP;
NGK SPARK PLUG CO., LTD., Nagoya, JP;
Abstract
A ceramic package includes a package main body which is formed of a ceramic material, which has a front surface and a back surface having a rectangular shape in plan view, and which has a cavity opening toward the front surface; a first metalized layer which has a frame shape in plan view and is formed on the front surface; and a second metalized layer which is formed on the front surface of the first metalized layer so as to assume a frame shape, and which has a width smaller than the width of the first metalized layer, wherein the width of the second metalized layer at each corner portion of the front surface in plan view is smaller than the width of the second metalized layer in a region other than the corner portion in plan view.