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:
Apr. 12, 2011
Filed:
Jun. 03, 2008
Hiroshi Isomura, Aichi, JP;
Takaya Yoshikawa, Aichi, JP;
Junji Kawai, Aichi, JP;
Hisaharu Nishio, Aichi, JP;
Hiroshi Isomura, Aichi, JP;
Takaya Yoshikawa, Aichi, JP;
Junji Kawai, Aichi, JP;
Hisaharu Nishio, Aichi, JP;
NGK Spark Plug Co., Ltd., Nagoya, Aichi, JP;
Abstract
A sensor of the present invention includes a sensor element; a metallic shell; an outer tube member fixed to a rear end portion of the metallic shell; and a protective outer tube member covering an outer surface of the outer tube member. The outer tube member has a seal portion being circumferentially in contact with the protective outer tube member directly or via another member, and a front-side separation portion located frontward of the seal portion and spaced apart from and facing the protective outer tube member. A metal coating layer (plating layer) is formed on the outer surface of at least the front-side separation portion of the outer tube member.