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:
Jun. 25, 2013
Filed:
Sep. 17, 2009
Hiroshi Takenouchi, Kirishima, JP;
Hiroshi Takenouchi, Kirishima, JP;
Kyocera Corporation, Kyoto, JP;
Abstract
Provided is a ceramic heater having enhanced joining strength between a heater section and a cylindrical metal member and having enhanced durability. A ceramic heater includes a heater section including a ceramic body and a heat-generating resistor configured to be buried in the ceramic body, a metal layer which is on part of a surface of the ceramic body and is configured to apply electric current to the heater section, and a cylindrical metal member, and inner surface of one end thereof being joined to the metal layer with a brazing material interposed therebetween, wherein the cylindrical metal member includes a brazing material restraining portion in an end face of the one end thereof, the brazing material restraining portion having lower wettability to the brazing material than that of other portions of the end face of the one end.