Tdk Corporation

Ryo Kudo

Hisashi Tanaka

Isao Fujiwara

Tsukasa Sato

The present invention is directed to a high-voltage capacitor, high-voltage capacitor device and magnetron in which, undesirable radiation waves generated in the frequency range of 450 MHz to 1000 MHz in a magnetron are suppressed to such a level that there is no adverse effect on the peripheral devices. The dielectric porcelain comprises a bodyand through holesThe bodyincludes a portion () that is narrowed on both sides in the middle of the body in the plan view. The through holesare formed in the body, arranged at a distance from each other over the narrowed portion (). One individual electrodeis provided on the surface of the bodyat which the through holeopens. The other individual electrodeis provided on the surface of the bodyat which the through holeopens. The common electrodeis provided on another surface of the bodyat which the through holesopen.

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Tokyo, Japan

Ryo Kudo