Nonreciprocal circuit device, communication device, and...

Details Nonreciprocal circuit device, communication device, and... Nonreciprocal circuit device, communication device, and...

2005-11-29

2005-11-29

Jones, Stephen E. (Department: 2817)

Metal working

Method of mechanical manufacture

Electrical device making

C333S001100, C333S024200

Reexamination Certificate

active

06968609

ABSTRACT:
A nonreciprocal circuit device, in which metal members which form a metal case can be resistance-welded stably and reliably, having high reliability and satisfactory characteristics, a communication device using the nonreciprocal circuit device, and a method of manufacturing the nonreciprocal circuit device. Protruding portions are formed at two places on each side wall of an upper metal case. The upper metal case and a lower metal case are bonded together by resistance welding the two side walls of the lower metal case to the two side walls of the upper metal case at the protruding portions.

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Resistance Spot Welding, Feb. 1999, Safety and Health Fact Sheet No. 21, American Welding Society, pp. 1-2.
JP10276011A, machine translation.

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