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. 19, 2014
Filed:
Aug. 18, 2011
Yuji Kasuya, Tokyo, JP;
Masahiro Inoue, Gifu, JP;
Yuji Kasuya, Tokyo, JP;
Masahiro Inoue, Gifu, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A buried portion (B) buried from a junction target surface of a ground electrode () is provided in a noble metal tip (). In a section, perpendicular to a central axis CLof the ground electrode (), a large width portion (W) is formed in the buried portion (B), and a region between the junction target surface and a largest width region of the large width portion (W) is formed into a shape which gradually increases in width, or into a shape having a region of the relevant shape and a constant width region. A region from the large width portion (W) to a point of intersection P, Pis covered with a base material of the ground electrode () and a melt portion (), and a thickness t(mm) of the noble metal tip () and a buried amount t(mm) satisfy 0.25≦t/t
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile