Hitachi, Ltd.

Youichi Inoue

Yutaka Ito

Yasuhiro Yoshimura

Yoshishige Endo

Hiromitsu Tokisue

Yukiko Ikeda

Nobuyuki Ishii

Sunao Yonekawa

Osamu Narisawa

Hiroshi Yuyama

Yasuyuki Horiguchi

Kenchi Ito

Takeshi Harada

Masaki Ohura

Hiroshi Tani

Katsuo Abe

Katsuyuki Tanaka

Mieko Ishii

Muneo Mizumoto

Shinichi Hirose

Yoshihiro Sato

For providing a recording/reproducing apparatus, for recording/reproducing information through conduction of electricity upon contact of a probe, having large recording density and a large transfer speed, but less in deterioration of a probe chips thereof, and being long in the lifetime thereof, within the recording/reproducing apparatus, a multi-chip is formed, disposing probe chips in large numbers thereof at a tip of a cantilever, while the cantilever is of a double-sided beam type, and the multi-chip is disposed at a center of the beam, wherein recording/reproducing portions of the multi-chip are disposed to correspond to recording dots one by one, and the multi-chip forming surface is moved up and down in parallel with the surface of a recording medium, due to suction force, so as to bring it to be in contact with the recording dots, and electricity is conducted after the contact thereof, thereby conducting the recording, in the structure; wherein, since a large amount of data can be read/written at one time, therefore it is possible to improve data transfer speed. Also, with conducting the R/W by means of the multi-chip, comparing to the single chip, it is possible to reduce the traveling distance of the multi-chip, thereby to reduce the abrasion. Also, since the tip portion of the said chip has the curvature radius, being large, such as, equal to 50 nm or greater than that, and since it moves in parallel with the surface of the recording medium, it can be in contact with the surface under the condition of, not the point contact, but near to the plane contact, therefore, the abrasion can be further reduced, effectively.

Recording/reproducing apparatus with double-sided beam type probe

A magnetic hard disk drive comprising a magnetic disk and a magnetic head slider, characterized in that said magnetic head slider is coated with a layer having a contact angle of 50&deg; or more when measured by using a lubricant coated on the magnetic disk, is free from start failure due to stiction caused by adhesion of the lubricant to the slider surface.

Process for producing a magnetic head slider

Magnetic hard disk drive and process for producing the same

The present invention provides a magnetic recording medium wherein the surface layer of the protective film of the medium is irradiated by ions to give a protective film having high reliability in resistance to sliding with the magnetic head, a process for producing the medium, an apparatus for producing the medium, and a magnetic recording apparatus having the medium mounted therein. The essentials of the present invention lie in introducing a minute surface roughness of atomic order in the surface of the protective film 5 constituting the outermost layer of a magnetic recording medium by irradiating atoms accelerated by high voltage (that is, by implanting ions) to the surface.

Magnetic recording medium, process for producing magnetic recording

Growing community of inventors

Ryugasaki, Japan

Youichi Inoue