Compositions – Electrically conductive or emissive compositions – Elemental carbon containing
Reexamination Certificate
2008-05-06
2008-05-06
Kopec, Mark (Department: 1796)
Compositions
Electrically conductive or emissive compositions
Elemental carbon containing
C252S512000, C252S513000, C252S518100, C252S521200, C338S0220SD
Reexamination Certificate
active
07368069
ABSTRACT:
In a PTC thermistor comprising at least a pair of electrodes disposed so as to face each other and a thermistor element disposed between the electrodes and having a positive resistance-temperature characteristic, the thermistor element is a molded body constituted by a high molecular matrix, a low molecular organic compound, and conductive particles having electric conductivity, the molecular weight of the high molecular matrix is between 10,000 and 400,000, the molecular weight of the low molecular organic compound is between 100 and 3,000, and the high molecular matrix is an olefin-type high molecular compound having a melting start temperature of between 85 and 95° C.
REFERENCES:
patent: 5582770 (1996-12-01), Chu et al.
patent: 5747147 (1998-05-01), Wartenberg et al.
patent: 5945034 (1999-08-01), Handa et al.
patent: 6299801 (2001-10-01), Handa et al.
patent: 6348852 (2002-02-01), Kojima et al.
patent: 2002/0145130 (2002-10-01), Handa et al.
patent: A 63-184303 (1988-07-01), None
patent: A 4-28743 (1992-05-01), None
patent: A 6-89802 (1994-03-01), None
patent: A 09-153402 (1997-06-01), None
patent: A 10-214705 (1998-08-01), None
patent: A 11-168005 (1999-06-01), None
patent: A 2000-82602 (2000-03-01), None
patent: A 2000-124003 (2000-04-01), None
patent: A 2000-133502 (2000-05-01), None
patent: A 2000-133503 (2000-05-01), None
patent: A 2001-52901 (2001-02-01), None
patent: A 2001-102203 (2001-04-01), None
Tosaka Hisanao
Yamashita Yasuhide
Kopec Mark
Nguyen Tri V.
Oliff & Berridg,e PLC
TDK Corporation
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