Lamination type inductor

Details Lamination type inductor Lamination type inductor

1989-08-23

1991-09-03

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428209, 428457, 428901, B32B 900

Patent

active

050453807

ABSTRACT:
A lamination type inductor having a ferrite layer having opposite main surfaces each with a periphery including opposite ends having end edges thereat, the ferrite layer further having end edges at the opposite ends of the main surfaces and a through hole therein along the periphery, the ferrite layer having a conductor pattern on each main surafce thereof, the conductor pattern on one main surface having a first end portion along one end of the one main surface and extending 0.75 turn from about the middle of the first end portion along the periphery of the one main surface of the ferrite layer to the through hole, and the conductor pattern on the other main surface having a second end portion along the other end of the other main surface and extending 0.75 turn from about the middle of the second end portion along the periphery of the other main surface of the ferrite layer to the through hole, the conductor patterns being electrically connected through the through hole for forming a substantially 1.5-turn coil; outside ferrite layers laminated onto the opposite main surfaces of ferrite layer and having outside end portions corresponding to the opposite ends of said ferrite layer; and outside electrodes on the outside of the laminated body at the respective outside end portions of the outside ferrite layers and the end edges of the ferrite layer and electrically connected with the first and second end portions.

REFERENCES:
patent: 3732514 (1973-05-01), Sato
patent: 3765082 (1973-10-01), Zyeta
patent: 3812442 (1974-05-01), Muckelroy
patent: 4542553 (1985-09-01), Mandai et al.
patent: 4543553 (1985-09-01), Mandai et al.
patent: 4689594 (1987-08-01), Kawabata et al.
patent: 4904967 (1990-02-01), Morii et al.

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