Matsushita Electric Industrial Co., Ltd.

Mitsuaki Uenishi

Norio Miyatake

Yoshihisa Takase

Takashi Fujii

Keizo Ishiwatari

Nobuo Kashimura

In an IC card of the invention, an IC module (3) is adhered to a first concave (9) of a card base (1) by means of an adhesive (7) and a gap (8) is formed between the outside surface of the IC module (3) and the inside surface of the first concave (9), the gap being wider in the inside upper part and narrower in the inside lower part of the first concave (9), so that the IC chip in the IC module (3) and the card base (1) can be protected from damages caused by bending of the the card base (1).

IC card and a method for the manufacture of the same

A magnetic erasing head for erasing a magnetic recording media such as magnetic tape. The device has a head surface defined to make sliding contact with the tape surface. The head surface includes a permanent magnet material and a high permeability material. The permanent magnet material defines the portion of the head surface extending from the inlet side toward the exit side thereof for the sliding tape and is magnetized to include portions which have alternate polarities and which have a field strength which gradually decrease from the inlet side to the exit side of the head surface. The high permeability material defines a portion of the head surface with a predetermined length from the exit side toward the inlet side and with a width of about one-half of the recording track of the tape. The high permeability material is positioned substantially in alignment with the center of the recording track. Thus, the magnetic tape erased by the erasing head does not induce secondary harmonic distortion due to mutual cancellation of residual magnetism.

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Takatsuki, Japan

Mitsuaki Uenishi