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. 25, 2006
Filed:
Apr. 07, 2004
Takaya Yoshikawa, Kasugai, JP;
Hiroyuki Suzuki, Kasugai, JP;
Shinsuke Ito, Konan, JP;
Shinya Murakoshi, Nagoya, JP;
Takaya Yoshikawa, Kasugai, JP;
Hiroyuki Suzuki, Kasugai, JP;
Shinsuke Ito, Konan, JP;
Shinya Murakoshi, Nagoya, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A heater including: a rod-shaped ceramic heater including: a ceramic heater body extending in an axial direction and having a heating-element at its leading end portion for generating heat when energized; and first and second energizing lead terminals extending from the heating element and exposed to an outer circumference of a trailing end side of the ceramic heater body; a cylindrical outer cylinder for holding the ceramic heater while protruding a leading end portion and a trailing end portion of the ceramic heater; and a core rod arranged on said trailing end side of the ceramic heater in an axial direction and connected electrically with the first lead terminal, wherein the heater further includes: a ring member including: a ring leading end portion fixed by a tight fitting on an outer circumference of a trailing end side of the ceramic heater and connected electrically with the first lead terminal; and a ring trailing end portion protruding backward from a trailing end of the ceramic heater; and a metallic lead for connecting the ring trailing end portion and the core rod electrically.