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Title:
METHOD OF MANUFACTURING CERAMIC HEATING ELEMENT AND SNOW-MELTING ROOFING TILE
Document Type and Number:
Japanese Patent JP2007123048
Kind Code:
A
Abstract:

To provide an inexpensive and safe ceramic heating element facilitating adjustment of an electric resistance value without causing disconnection, and having a heat accumulation effect; and to provide a snow-melting roofing tile using it.

A clay body is kneaded, deaerated, and thereafter baked to produce an unglazed substrate having a predetermined shape; a masking agent is applied to the unglazed substrate to draw a predetermined circulating pattern; thereafter a carbonaceous film is formed on its whole surface; thereafter the carbonaceous film in a part with the masking agent applied thereto is etched together with the masking agent to form one or more isolated carbonaceous film segments on the unglazed substrate; and finally a structure composed by connecting the carbonaceous segments with current-carrying paths is formed.


Inventors:
ADACHI MICHIE
Application Number:
JP2005313482A
Publication Date:
May 17, 2007
Filing Date:
October 27, 2005
Export Citation:
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Assignee:
ADACHI MICHIE
International Classes:
H05B3/14; C04B33/13; C04B41/85; E04D1/30; H05B3/20
Attorney, Agent or Firm:
Hiroyuki Nakai