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:
Sep. 02, 2025
Filed:
Jul. 12, 2022
Applicant:
Niterra Co., Ltd., Nagoya, JP;
Inventors:
Kaito Nakamura, Nagoya, JP;
Daisuke Sumoyama, Nagoya, JP;
Takaaki Kikai, Nagoya, JP;
Kengo Hattori, Nagoya, JP;
Assignee:
NITERRA CO, LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T 13/39 (2006.01);
U.S. Cl.
CPC ...
H01T 13/39 (2013.01);
Abstract
A spark plug which is reduced in consumption of a discharge member, thereby having a longer service life. This spark plug is provided with: a first electrode that comprises a discharge member; and a second electrode that faces the discharge member, with a spark gap lying therebetween. The discharge member is mainly composed of Ru, while containing 0.5% by mass to 30% by mass of Ni or Co.