Fujitsu Corporation

Fujitsu Limtied

Keita Ohtsuka

Keiji Watanabe

Ei Yano

Koji Nozaki

Takahisa Namiki

Yuji Uehara

Miwa Igarashi

Yoko Kuramitsu

Michiaki Kanamine

Hiroshi Shirataki

Hiroo Ueda

Takamitsu Orimoto

Hiroshi Sasao

Mithumasa Okada

A method for manufacturing a magnetoresistance head of the present invention comprises the steps of forming an organic film on a multilayered film constituting a magnetoresistance device, forming an upper film formed of resist or inorganic film on the organic film, patterning the organic film and the upper film, cutting into edges of the organic film patterns from edges of the upper film patterns inwardly to such an extent that particles of the thin film being formed on the upper film and the multilayered film do not contact to side portions of the organic film patterns.

Method for manufacturing magnetoresistance head

According to a method of manufacturing a thin film magnetic head, a magnetoresistive device and an alumina layer are formed on a substrate, then the alumina layer is covered with a covering layer made of metal such as Ti having a thickness of more than 10 nm, then a photoresist film is formed on the covering layer, and then an opening is formed by exposing and developing the photoresist film. In turn, a magnetic metal film is formed on an allover surface, then the photoresist film and the magnetic metal film thereon are removed. The thin film magnetic head structured as above may provide a good magnetic characteristic since it has the covering layer on the alumina layer to prevent the alumina layer from being corroded by liquid developer. In addition, a magnetic recording unit employing the thin film magnetic head may reproduce data recorded with high density.

Thin film magnetic head and method of manufacturing the same and

An ink sheet including an ink layer composed of 10 weight part of urethane wax, 1 weight part of ester wax, 5 weight part of paraffin wax, 5 weight part of dyestuff and 2 weight part of carbon black, on a polyester resin film substrate through an adhesive layer composed of 15 weight part of a (vinyl chloride)-(vinyl acetate) copolymerized resin, 15 weight part of carbon black and 48 weight part of polyester mixture composed of two kinds of polyester resin one of which has a glass transition temperature of 67.degree. C. and the other of which has a glass transition temperature of -20.degree. C., mixed in a weight ratio of 75/25.

Thermal imprint ink sheet

Growing community of inventors

Kanagawa, Japan

Keita Ohtsuka