Electric heating – Heating devices – With heating unit structure
Patent
1998-07-31
2000-03-28
Walberg, Teresa
Electric heating
Heating devices
With heating unit structure
219548, 219549, H05B 344
Patent
active
060434686
ABSTRACT:
A carbon heater comprising heater members (11, 111, 121 . . . 161, 212, 222, 315, 325 . . . 345, 411, 515, 612) in which a plurality of carbon fiber bundles having a plurality of carbon fibers whose diameter is 5 to 15 .mu.m bundled are woven into a longitudinally elongated shape such as a wire shape or a tape shape and the impurity content is less than 10 ppm in ashes.
REFERENCES:
patent: 3774299 (1973-11-01), Sato et al.
patent: 4091355 (1978-05-01), Beck
patent: 4471212 (1984-09-01), Hager, Jr.
patent: 4783586 (1988-11-01), Takeda
Honma Hiroyuki
Ichishima Masahiko
Inaba Takeshi
Konn Tomio
Makiya Toshiyuki
Fuqua Sharontina T.
Tokyo Electron Limited
Toshiba Ceramics Co. Ltd.
Walberg Teresa
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