Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masao Nishioka0
Date of Patent
September 21, 2010
0Patent Application Number
116879000
Date Filed
March 19, 2007
0Patent Primary Examiner
Patent abstract
A heating device includes a high-frequency electrode embedded substantially in parallel with a heating surface of a ceramics base in the vicinity of the heating surface. A conducting hole toward this high-frequency electrode is formed in a back face of the ceramics base. This high-frequency electrode has a trapezoidal cone-like concave section toward the conducting hole at a region opposed to the conducting hole.
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