Electric heating – Heating devices – With power supply and voltage or current regulation or...
Reexamination Certificate
2011-02-01
2011-02-01
Paschall, Mark H (Department: 3742)
Electric heating
Heating devices
With power supply and voltage or current regulation or...
C219S504000, C219S121440, C711S100000, C438S128000
Reexamination Certificate
active
07880123
ABSTRACT:
A dual resistance heater for a phase change material region is formed by depositing a resistive material. The heater material is then exposed to an implantation or plasma which increases the resistance of the surface of the heater material relative to the remainder of the heater material. As a result, the portion of the heater material approximate to the phase change material region is a highly effective heater because of its high resistance, but the bulk of the heater material is not as resistive and, thus, does not increase the voltage drop and the current usage of the device.
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patent: 7642622 (2010-01-01), Yi et al.
patent: 2004/0067608 (2004-04-01), Dennison
patent: 2008/0210923 (2008-09-01), Sato
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Derwent WPI Database, KR2002054844 abstract, Jul. 8, 2002.
Derwent WPI Database, KR2003058044 abstract, Jul. 7, 2003.
Atwood Greg
Karpov Ilya V.
Kim Yudong
Kuo Charles C.
Lowrey Tyler
Blakely , Sokoloff, Taylor & Zafman LLP
Paschall Mark H
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