Compositions – Electrically conductive or emissive compositions – Carbide containing
Reexamination Certificate
2005-04-05
2005-04-05
Kopec, Marc (Department: 1751)
Compositions
Electrically conductive or emissive compositions
Carbide containing
C252S06230C
Reexamination Certificate
active
06875376
ABSTRACT:
A voltage non-linear resistor which makes a SiC-based varistor exhibiting low apparent relative dielectric constant and the voltage nonlinearity coefficient α at the same level as ZnO-based varistors is provided. The voltage non-linear resistor includes semiconductive SiC particles doped with an impurity, each of the semiconductive SiC particles having an oxide layer formed on the surface thereof. The oxide layer has a thickness in the range of about 5 to 100 nm and has aluminum diffused therein. A method for making the voltage non-linear resistor and a varistor using the same are also provided.
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Copy of Japanese Examination Report dated May 11, 2004 (and English translation of same).
Kamoshida Yukihiro
Nakamura Kazutaka
Dickstein Shapiro Morin & Oshinsky LLP.
Kopec Marc
Murata Manufacturing Co. Ltd.
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