Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hisakazu Hujimoto0
Douglas Campbell Hamilton0
Jerry Wayne Smith0
Kiyoshi Mizushima0
Larry Earl Stahlman0
Makoto Aoki0
Date of Patent
November 1, 2005
0Patent Application Number
102293690
Date Filed
August 26, 2002
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A large area heater used, for example, in a laser printer belt fuser or as cooking surface, has an alumina substrate in which two bowed parts of alumina ceramic having opposed concave regions are formed together as a laminate. Electrical resistors are deposited on the laminate. The alumina laminate provides excellent resistance to uneven heating or other thermal stress. Alumina ceramic is readily shaped during manufacture and manufacturing costs and yield are good. A wide variety of large area heaters can usefully employ the laminate.
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