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. 20, 1997
Filed:
May. 03, 1995
Applicant:
Inventors:
Takeo Shimada, Atsugi, JP;
Masatoshi Yanase, Atsugi, JP;
Assignee:
Unisia Jecs Corporation, Atsugi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
264642 ; 264663 ; 264676 ;
Abstract
A ceramic heater and a method for producing the ceramic heater. The ceramic heater includes a ceramic heater core formed in a rod shape having a bore extending axially through the heater core. The heater core has a pair of flattened portion near the rear end of the heater core. A conductive heater pattern is formed on the outer peripheral surface of the heater core. The heater pattern includes end portions formed on the respective flattened portions. The ceramic heater also includes a protective layer formed to cover the heater pattern except for the end portions, and flattened conductive terminals formed on the respective end patterns.