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. 10, 2017
Filed:
Jan. 08, 2014
Ngk Spark Plug Co., Ltd., Nagoya-shi, Aichi, JP;
Hitachi Metals, Ltd., Minatu-ku, Tokyo, JP;
Osamu Yoshimoto, Inazawa, JP;
Tomonori Kanemaru, Nagoya, JP;
Takehito Kuno, Nagoya, JP;
Tomo-o Tanaka, Kitanagoya, JP;
Toshihiro Uehara, Yasugi, JP;
NGK SPARK PLUG CO., LTD., Aichi, JP;
HITACHI METALS, LTD., Tokyo, JP;
Abstract
An electrode material for at least one of a center electrode () and a ground electrode () provided with a chip () for use in a spark plug (). The electrode material contains Ni as a principal component, and has a Si content of from 0.50% to 1.0% by mass, an Al content of from 0.2% to 2.0% by mass, a Cr content of from 12% to 34% by mass, a rare-earth element or the like content of from 0.03% to 0.2% by mass, a Fe content of more than 0% but not more than 20% by mass, a C content of not more than 0.10% by mass, and a Mn content of not more than 1.0% by mass. The total content of Si and Al is not less than 0.80% by mass, and less than one tenth of the Cr content.