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:
Oct. 02, 2018
Filed:
Jun. 02, 2015
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Katsuya Takaoka, Ichinomiya, JP;
Kazuhiro Kurosawa, Komaki, JP;
Kuniharu Tanaka, Komaki, JP;
Hisashi Kozuka, Ichinomiya, JP;
Toshitaka Honda, Nagoya, JP;
Hirokazu Kurono, Nagoya, JP;
Haruki Yoshida, Tajimi, JP;
Hironori Uegaki, Nagoya, JP;
NGK SPARK PLUG CO., LTD., Nagoya-shi, Aichi, JP;
Abstract
Disclosed is a spark plug capable of suppressing high-frequency noise by improving the material of an electrical connection part between a center electrode and a metal terminal within an axial hole of an insulator. A spark plug has an electrical connection part arranged in an axial hole of an insulator to establish electrical connection between a center electrode and a metal terminal. The electrical connection part includes a conductor having a first crystal phase formed of a Fe-containing oxide and a second crystal phase formed of a conductive metal oxide of perovskite crystal structure.