Sony Corporation

Toshimitsu Takano

Tetsuo Endo

Wataru Ishikawa

Masahiko Yamazaki

Masayoshi Fujita

Yoshitomo Ito

Masamori Yagino

Sadatoshi Kikuchi

Masato Taniguchi

A magnetic head having a recording and/or reproducing magnetic gap and an erasing magnetic gap for writing and/or reading informational signals on and/or from a flexible disk is disclosed. A magnetic circuit comprises a front core having center cores and side cores and a rear core. The front core is sandwiched between a pair of sliders for assuring contact with the flexible disk. At least one of the sliders is provided with core reinforcing portions in positions corresponding to the cores and the side cores of the front core. The core reinforcing portions are in contact with the center cores and the side cores for reinforcing these cores.

Magnetic head

A thermal head which is reduced in restriction in dimension of a substrate to allow reduction in size thereof and wherein the contacting characteristic of the substrate with a platen is improved to assure a high quality of printing. The thermal head has a heat generating resistor element and a driving circuit therefor both formed on a substrate, and a suppporting heat radiating member joined to one face of the substrate on which the resistor element is located. The substrate is ground at least at a portion of the opposite face thereof corresponding to a heat generating portion of the resistor element to make the thickness smaller than the other portion of the substrate. Thermal recording is effected by the ground portion of the substrate. The substrate may be made of a transparent or translucent inexpensive material such as quartz or glass. Various forms of supporting heat radiating plate to be incorporated in the thermal printers are also disclosed.

Thermal head

Growing community of inventors

Miyagi, Japan

Toshimitsu Takano