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:
Jul. 06, 2021
Filed:
Jul. 17, 2020
Applicant:
Denso Corporation, Kariya, JP;
Inventors:
Yoshihiro Izumi, Nisshin, JP;
Masamichi Shibata, Kariya, JP;
Kanechiyo Terada, Kariya, JP;
Tetsuya Miwa, Kariya, JP;
Assignee:
DENSO CORPORATION, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T 13/32 (2006.01); F02P 15/00 (2006.01); F02P 3/02 (2006.01);
U.S. Cl.
CPC ...
H01T 13/32 (2013.01); F02P 15/00 (2013.01); F02P 3/02 (2013.01);
Abstract
A spark plug has a housing of a cylindrical shape and an insulator supported to an inside of the housing. A channel part is formed at a distal end side of the housing. The channel part is open so that the inside of the housing communicates with an outside of the housing through the channel part. The channel part has a channel bottom having a tapered shape oblique relative to a plug central axis. An overall channel bottom is arranged in the housing closer to a proximal end side than to the distal end side of the housing.