Resistor and method of manufacturing the same

Electrical resistors – Mechanically variable – Resistance value varied by removing or adding material

Reexamination Certificate

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Details

C338S307000, C338S283000, C029S620000

Reexamination Certificate

active

07049928

ABSTRACT:
The resistor of the present invention comprises a substrate, a pair of electrodes, and a resistor element comprising rectangular sections connected to the pair of electrodes and a S-shaped section disposed between the rectangular sections and is free of trimming portion. At least one of the rectangular sections is trimmed to adjust the resistance. According to the construction of the present invention, a compact resistor of superior surge property can be obtained.

REFERENCES:
patent: 2438205 (1948-03-01), Coates
patent: 3282730 (1966-11-01), Johnston et al.
patent: 3359467 (1967-12-01), Cook
patent: 3512254 (1970-05-01), Jenkins
patent: 3669733 (1972-06-01), Allington
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patent: 4238205 (1980-12-01), Geiger et al.
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patent: 4429298 (1984-01-01), Oberholzer
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patent: 5321382 (1994-06-01), Mizukoshi et al.
patent: 5548268 (1996-08-01), Collins
patent: 5929746 (1999-07-01), Edwards, Jr. et al.
patent: 6189767 (2001-02-01), Haspeslagh
patent: 6292091 (2001-09-01), Kambara et al.
patent: 6322711 (2001-11-01), Chen
patent: 64-42102 (1989-02-01), None
patent: 01-137601 (1989-05-01), None
patent: 09-205004 (1997-08-01), None
Handbook of ThickFilm Technology, Holmes Loasby, Ch. 1, pp. 1-5 (1976).
Japanese patent to Kiyobumi, JP09-205004 machine translation (Aug. 1997).
64-42102 patent abstracts Feb. 1989.

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