Mitsubishi Denki Kabushiki Kaisha

Shigehisa Suzuki

Yuji Kawano

Tatsuya Fukami

Yoshio Fujii

Yoshinobu Maeda

Jun Fujita

Hiroshi Yamamoto

Munehito Kumagai

Mitsuo Inumochi

Tsukasa Matsuura

Manabu Uchizawa

Osamu Tabata

A method for magnetically recording/reproducing comprising recording an information signal by forming a pattern of a soft magnetic material in a magnetic recording medium; providing a magnetoeletric converting element in a place neighboring a face of forming the pattern of the magnetic recording medium on which the pattern is formed, applying a magnetic field to the pattern; and reproducing the information by detecting a variation of the magnetic field caused by the pattern of the soft magnetic material of the magnetic recording medium while relatively moving the magnetoelectric converting element and the magnetic recording medium.

Magnetic recording medium

A method for magnetically recording/reproducing comprising recording an information signal by forming a pattern of a soft magnetic material in a magnetic recording medium; providing a magnetoeletric converting element a place neighboring a face of forming the pattern of the magnetic recording medium on which the pattern formed; applying a magnetic field to the pattern; and reproducing the information by detecting a variation of the magnetic field caused by the pattern of the soft magnetic material of the magnetic recording medium while relatively moving the magnetoelectric converting element and the magnetic recording medium.

Magetic recording/reproducing method, magnetic reproducing apparatus

A small light-weight thin film magnetic head apparatus for a rigid disk or a floppy disc. The apparatus includes a magnetic head formed directly on a distal end of a suspension as a thin layer, one end of the suspension being supported by an arm. This magnetic head is very small-sized and light-weight and has a head gap in direct contact with a recording medium, increasing the recording density and the read/write speed. Because of its reduced weight of the thin film magnetic head, a remarkably improved degree of followability with respect to the recording medium can be achieved. A method of manufacturing this magnetic head apparatus is also disclosed.

Thin film magnetic head apparatus and method of manufacturing the same

A magnetic disk recorder which applies an azimuth recording system and which can use all of the tracks of a magnetic disk. In particular, a plurality of magnetic head chips, each of which is formed with a head gap having a predetermined azimuth angle, are respectively assembled into separate head sliders along with dummy heads, and the head sliders are driven by separate actuators.

Magnetic disk recorder

A fixed type multi-channel head device with a plurality of floating head sliders held thereby, is provided with a sheet of positioning spring member having a number of individual gimbal spring portions each integrally holding at the central part one floating head slider, a sheet of load spring member including a number of gimbal spring portions or cantilever type spring portions applying load from the rear sides of a plurality of sliders to said floating head sliders, respectively, and a plurality of pivots disposed between the pairs of spring portions of the positioning and load spring member, each separating one spring portion of the paired ones from the other spring. The positioning and the load spring members are superposed such that the tip of each pivot comes in contact with the central part of the rear surface of each floating head slider.

Multi-channel head device and its manufacturing method

A floating head device has a floating surface for imparting a floating force for floating from a recording surface by air flow formed between the floating surface and the recording surface and a suction surface for imparting a sucking force in a relative movement of a head slider to the recording surface of a recording medium. The air inlet end of the suction surface has grooves and is disposed in down-stream of the air flow from the air inlet end of the floating surface.

Floating head device

First and second gimbal springs are used for following precisely a magnetic head slider held by a head holder on a recording surface of a rotating magnetic disc. The head slider is held on a front surface of the first gimbal spring at the center and a pivot is fitted on the center of the second gimbal spring and the end of the pivot is contacted with the rear surface of the first gimbal spring at the center and the first and second gimbal springs are in flat in a free condition. During the working time when contacting the head slider with the recording surface in a floating condition, the gimbal spring in the side of the recording surface is in substantially flat whereas during the non-working time, both gimbal springs are formed to expand to both sides.

Growing community of inventors

Amagasaki, Japan

Shigehisa Suzuki