Fuji Photo Film Company, Limited

Fujifilm Corporation

Takashi Suda

Michihiro Shibata

Toshihiko Miura

Disclosed is an MR head in which the MR element resists damage due to ESD. A magneto resistive head to be in contact with a running magnetic tape includes a substrate, an insulating layer, a magneto resistive element located in the insulating layer, at least one shield layer for shielding the magneto resistive element from magnetic fields, and a conductive layer that has a conductive surface being in contact with the magnetic tape and that is electrically connected to the substrate. In this head, static electricity accumulated on the magnetic tap is discharged through the conductive layer and the substrate.

Magneto resistive (MR) head

A composite magnetic head comprising a DC-erasing head, which is slidably contact with a driving magnetic tape, and which DC-erases a servo band of the magnetic tape in such a manner that the direction of the magnetization of the servo band the servo band is directed towards one direction of the lengthwise direction of the magnetic tape; a servo writing head, which is slidably contact with the magnetic tape, and which writes a servo signal thereon so that the direction of the magnetization of the servo band is directed toward the reverse direction to the direction directed by the DC erasing head; and an AC-erasing head, which is contact with the magnetic tape, and which AC-erases the magnetization of the data band of the magnetic tape is disclosed. The servo writing head and the AC-erasing head are provided at downstream of the driving magnetic tape relative to the DC-erasing head, and the DC-erasing head, the servo writing head and the AC-erasing head are unified with each other.

Composite magnetic head and process for producing the same

An optical information recording disc is composed a transparent substrate, an information recording layer, a metallic light-reflecting layer, a light-shielding layer, and an ink-printable layer, in order. The light-shielding layer is prepared essentially from a binder polymer and zinc sulfide particles, so that an ink, particularly an aqueous ink solution, applied onto the ink-printable layer gives a clear ink image with almost no blur.

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Odawara, Japan

Takashi Suda