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. 15, 1984
Filed:
Sep. 07, 1982
Applicant:
Inventors:
Assignee:
Nippondenso Co., Ltd., Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B / ;
U.S. Cl.
CPC ...
219553 ; 219270 ; 219541 ; 252507 ; 252513 ; 252516 ; 252520 ; 338330 ; 361266 ;
Abstract
A ceramic heater having a heating element of a sintered mixture comprising alumina and titanium nitride and/or titanium carbide. The heating element has a specific resistance in a range from 10.sup.-4 to several .OMEGA.cm. The ceramic heater may have supporting substrates of insulating materials with which the heating element is covered. The ceramic heater can be used at a temperature above 1000.degree. C.