Rare earth element contained substrate for heat generating...

Details Rare earth element contained substrate for heat generating... Rare earth element contained substrate for heat generating...

2005-07-14

2009-02-03

Fuqua, Shawntina (Department: 3742)

Electric heating

Heating devices

With heating unit structure

C219S546000, C219S222000, C219S201000, C219S200000, C219S552000, C219S553000

Reexamination Certificate

active

07485833

ABSTRACT:
A rare earth element contained substrate for heat generating device contains the rare earth elements, compounds of the rare earth elements, or rare earth minerals so as to heighten its withstanding temperature and improve its heat dissipation. The substrate is also able to radiate a far infrared ray and yield negative ions for purifying the air.

REFERENCES:
patent: 3610888 (1971-10-01), Button

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