Matsushita Electric Industrial Co., Ltd.

Yutaka Tsutsumi

Shinji Nakamura

Tatsuya Mori

Toshinori Oda

Haruhiko Kuwata

Shunya Inoue

Hisayo Miyoshi

Hiroshi Momoi

Makoto Shinada

Masahiro Kawashima

Isago Konno

Takanobu Ito

In an inductor including a magnetic core on a top surface of a terminal table, a plurality of L-shaped conductors are inserted into the terminal table so that two ends of each of the L-shaped conductors are projecting from a side surface of the terminal table. The plurality of L-shaped conductors each have at least one stepped portion. One of the two ends which is on a higher level than the stepped portion acts as a winding terminal around which the wire is wound, and the other end which is on a lower level than the stepped portion acts as a mounting terminal used for mounting of the inductor. The winding terminal is projecting from a higher level of the side surface of the terminal table than the mounting terminal.

Method of producing an inductor

Inductor with terminal table

A line filter includes a magnetic core having a leg. A bobbin is placed around the leg of the magnetic core. The bobbin has end collars provided with projections respectively. A pair of windings are provided on the bobbin. A molded casing made of resin houses the magnetic core, the bobbin, and the windings. The casing has movable tongues which engage the projections on the bobbin collars to fix the bobbin to the casing. The casing has inner surfaces formed with ribs which engage the magnetic core to fix the magnetic core to the casing. The casing has an L-shaped movable member extending from a ceiling thereof and engaging the magnetic core to fix the magnetic core to the casing.

Line filter

A horizontal linearity correction coil is used for a television receiver having a cathode ray tube of a wide deflection angle and has excellent productivity, quality and loading respectively. The ferrite magnetic core has the flanges at both ends and the middle and has a hollow shape at one winding core portion of the ferrite magnetic core. The windings are wound around the winding core portions and the permanent magnets are combined to both end flanges.

Horizontal linearity correction coil

In a focus circuit for cathode-ray tube (40) of electromagnetic focusing type, a DC voltage (B4) which is made by dividing CRT anode voltage (B3) by a voltage dividing circuit (27) is compared with a reference voltage (B6) by an anode voltage variation component detection circuit (29), thereby to output therefrom a signal (Ve) of anode voltage variation component. This signal (Ve) and static focus adjusting DC voltage (B7) are summed and amplified by an output amplifier 30, which issues a current for correcting focus to electromagnetic focusing coil (31).

Focus circuit

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Neyagawa, Japan

Yutaka Tsutsumi