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:
May. 29, 2007
Filed:
Jun. 29, 2005
Masahiro Konishi, Kariya, JP;
Haruhiko Sato, Aichi, JP;
Tetsuya Suzuki, Komaki, JP;
Takahiro Matsui, Komaki, JP;
Masahiro Konishi, Kariya, JP;
Haruhiko Sato, Aichi, JP;
Tetsuya Suzuki, Komaki, JP;
Takahiro Matsui, Komaki, JP;
NGK Spark Plug Co., Ltd., Aichi, JP;
Abstract
A ceramic heater which includes: a cylindrical substrate including an insulator; a resistor provided in one end side of the substrate; a pair of lead parts provided in the substrate, connected to the resistor and extending to an opposite end side of the substrate; and a pair of electrode parts exposed to a surface at an opposite end side of the substrate and connected respectively to the lead parts. Both lead parts are made of the same material as both electrode parts. An axial cross-sectional area of the electrode part is equal to or larger than a cross-sectional area of the lead part in a direction perpendicular to an axis of the ceramic heater.