Sony Corporation

Kazunori Onuma

Takashi Tamura

Eiji Nakashio

Noboru Koyama

Teruo Inaguma

Toru Morikawa

Mitsuo Yanase

Akira Murakami

Hiroshi Onuma

A thermal head which forms an image on a recording medium by pressing a protruding portion on which heating elements are arranged on the recording medium while driving the heating elements to be heated includes a support substrate in which a concave gap portion facing the protruding portion is formed and a glaze layer provided on the support substrate and in which the protruding portion is formed, in which the glaze layer has a base layer stacked on the support substrate as well as forming a ceiling surface of the gap portion and a heat resistant layer stacked on the base layer and on which the heating elements are arranged.

Thermal head, thermal printer and manufacturing method of thermal head

It is assumed that W is the width for an end face of the lower magnetic shield thin film which is exposed outward from the tape sliding surface . It is also assumed that W corresponds to the sum of the width for an end face of the MR element which is exposed outward from the tape sliding surface and widths for end faces of a pair of ferromagnetic films and which are exposed outward therefrom. The width W is determined to be smaller than W . When the MR head is mounted on the head support plate or the rotary drum , it is possible to use as a marker the lower magnetic shield thin film 's end face exposed from the tape sliding surface.

Magnetoresistive effect magnetic head, rotary magnetic head apparatus, and manufacturing method thereof

The width W of the lower shield thin film and the width W of the upper shield thin film are specified so that each of these widths is larger than the width W of the MR element and is smaller than the contact width W

Magnetoresistive effect magnetic head and rotary magnetic head apparatus

A magnetoresistance effect magnetic head which is capable of shortening shield gap distance and which can be manufactured by a small number of manufacturing steps, and a manufacturing method therefor are provided. The magnetoresistance effect magnetic head having a magnetoresistance effect magnetic device held between a pair of soft magnetic members through insulating layers and conductors connected to the magnetoresistance effect magnetic device is structured such that the conductors are embedded in grooves formed in the insulating layer. Since the magnetoresistance effect magnetic device has the structure such that the conductors connected to the magnetoresistance effect magnetic device are embedded in the grooves formed in the insulating layer, the shield gap distance can be shortened.

Magnetoresistance effect magnetic head and manufacturing method therefor

The present invention intends to solve the above described problems and provides a high reliability complex type thin film magnetic head in which high recording magnetic field density is achieved without deteriorating an MR element by heat, and in the case when the complex type thin film magnetic head is of sliding type, eccentric friction likely to occur in a lower magnetic core and a upper magnetic core is relaxed and production method thereof. The complex type thin film magnetic head is structured by forming an MR head portion on an inductive head portion produced on a base substrate. Conductive coils are formed on the recess portions formed on the lower magnetic core because the groove portions exist through a first flattening layer.

Growing community of inventors

Miyagi, Japan

Kazunori Onuma