Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Reexamination Certificate
2007-01-25
2009-12-15
Lee, Kyung (Department: 2833)
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
C252S518100, C252S520500
Reexamination Certificate
active
07633371
ABSTRACT:
A thermistor element includes a thermistor body and a reduction-resistant coating covering the thermistor body. The thermistor body contains a perovskite phase of perovskite-type crystal structure represented by the composition formula: ABO3where A is at least one A-site element and B is at least one B-site element. The reduction-resistant coating is formed of a complex oxide containing one or more of the at least one A-site element and one or more of the at least one B-site element.
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Mitsuoka Takeshi
Mizoguchi Yoshihito
Ohbayashi Kazushige
Okimura Yasuyuki
Lee Kyung
NGK Spark Plug Co. Ltd.
Sughrue & Mion, PLLC
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