Sony Corporation

Hidetoshi Honda

Shinichi Fukuda

Toshiyuki Nakagawa

Masaaki Hara

Hiroyuki Ino

Norihito Mihota

Ryoichi Hiratsuka

Tomohiro Ikegami

Yoshihiko Deoka

Tomoyuki Hiura

Hiroto Kawaguchi

Masato Ishigaki

Hiroki Kanehira

Jota Ito

Taketoshi Sato

Hitoshi Wako

Satoshi Sekino

Yasumi Sato

Takashi Kanou

Kenichi Sato

Shuichi Kikuchi

Kazuhiko Suzuki

Takanori Sato

Yasuaki Kano

Kazunari Motohashi

Katsumi Maekawa

Kazutomo Miyata

Takaaki Sanpei

Seiichi Onodera

Fumiharu Sudo

Ichiro Kanagawa

Toshiharu Uchimi

Naoki Ikeda

Hiroshi Akama

Yukihiro Koshika

Yoshihito Ebine

Daizo Shiga

Toshikazu Sasaki

Takashi Chiba

A sensor apparatus and an information processing apparatus having excellent operability are provided. A sensor apparatus includes a touch panel, a casing, and a pressure-sensitive sensor. The touch panel includes an input operation surface and detects a position at which an operator comes into contact with the input operation surface directly or indirectly. The casing accommodates the touch panel. The pressure-sensitive sensor includes a first electrode fixed to the touch panel, a second electrode fixed to the casing, and an elastic body arranged between the touch panel and the casing and elastically supporting the touch panel with respect to the casing. The pressure-sensitive sensor detects a pressing force input to the input operation surface, as a change of a capacitance between the first and second electrodes.

Sensor apparatus and information processing apparatus

A sensor apparatus includes: a display cover including an operation area that is pressed by an operator and a circumferential area located on the circumference of the operation area; a frame including an opening covered by the operation area and a fixing portion that fixes the circumferential area; a touch panel that is supported by the display cover to be positioned at the opening and detects a position at which the operator comes into contact with the operation area; and a pressure-sensitive sensor that is provided between the display cover and the frame, includes a first electrode and a second electrode opposed to the first electrode, and detects a pressing force with respect to the operation area based on a change of a capacitance between the first electrode and the second electrode that corresponds to a deflection amount of the display cover.

Sensor apparatus and electronic apparatus

A magnetic tape cartridge includes a cartridge case, a pair of cylindrical hubs rotatably provided in the cartridge case, and a magnetic tape laid between the hubs and wound around outer peripheries of the hubs. Each of the hubs has an inner diameter portion provided with a height-position determining member. The height-position determining member determines a height position of the hub in the magnetic tape cartridge by contacting a driving shaft inserted in the hub when the magnetic tape cartridge is mounted in a magnetic recording and reproducing apparatus.

Position determining member to align a magnetic tape cartridge in a magnetic recording and reproducing apparatus

A magnetic recording medium includes a tape-shaped nonmagnetic support, and a vertical magnetic layer formed on a main surface of the nonmagnetic support by a vacuum thin-film forming technique, signals being recorded on and reproduced from the vertical magnetic layer in a linear system. In the magnetic recording medium, the dipulse ratio of the vertical recording layer is 0.36 or more.

Magnetic recording medium and magnetic recording/reproducing system

A magnetic head device performs a recording operation and a reproducing operation in a linear magnetic tape recording system having a plurality of tracks that are formed parallel to each other in a longitudinal direction of a tape. The magnetic head device includes a recording head block including a plurality of recording heads that are disposed in correspondence with respective tracks in a first area including the tracks that are adjacent to each other. The magnetic head device performs the recording operation on the tracks that are adjacent to each other at the same time with the recording head block.

Magnetic head device and magnetic recording/reproducing apparatus

A magnetic recording and reproduction method includes the steps of recording a plurality of tracks which make a unit for a signal process for data detection by means of a recording head on a magnetic recording medium, and reproducing signals of the plural tracks by a plural number of times in different positional relationships to the tracks by means of a reproduction head which can reproduce a signal across the plural tracks of the magnetic recording medium, collecting the reproduction signals in the unit and performing a signal process for the unit to produce reproduction signals for the individual tracks.

Magnetic recording and reproduction method, recording apparatus, reproduction apparatus and magnetic recording medium

A magnetic recording and reproducing apparatus is disclosed which includes: a recording device configured to record with a write head a plurality of tracks constituting a unit of signal processing for data detection, to magnetic recording media; a reproduction device configured to reproduce with a read head a plurality of reproduction signals concurrently from the plurality of tracks on the magnetic recording media in different positional relations to the tracks, the reproduction signals being arranged into that one unit for signal processing thereby generating the track-specific reproduction signals; and a phase alignment device configured to align phases of record signals between adjacent tracks among the plurality of tracks recorded by the recording device to the magnetic recording media.

Magnetic recording and reproducing apparatus and magnetic recording and reproducing method

A magnetic recording/reproducing apparatus is disclosed wherein reproduced signals read out from a plurality of recording tracks using a reproducing head can be separated into original recording signals of the recording tracks. Upon recording, an identification signal which has a recording wavelength equal to or greater than a minimum recording wavelength and causes no interference of any of the recording tracks with any adjacent one of the recording tracks is appended to and recorded together with a recording signal in order to allow, upon reproduction, acquisition of the position information of the reproducing head with respect to the plural recording tracks of the magnetic recording medium. Upon reproduction, a reproduced signal for each of the recording tracks of the magnetic recording medium is generated on the basis of the positional information read from the recording tracks.

Magnetic recording/reproducing apparatus and magnetic recording/reproducing method

A magnetic recording medium includes a nonmagnetic support having a thickness less than 7 &#x3bc;m and a width of 8 mm; a ferromagnetic metal layer disposed on a surface of the nonmagnetic support; and a reinforcing layer disposed on the other surface of the nonmagnetic support. The magnetic recording medium has a flexural rigidity EI of 5.9&#xd7;10to 1.3&#xd7;10N&#xb7;m (6.0&#xd7;10to 1.3&#xd7;10g&#xb7;cm). The flexural rigidity EI is determined by the following equation:(&#x3c0;/4&#x2212;2/&#x3c0;)&#xb7;/d&#xb7;b&#xd7;9.8&#xd7;10(wherein W is a load that causes an annular test piece having a radius of a cm and a width of b cm which is prepared by cutting a magnetic sheet formed of the magnetic recording medium to undergo a radial displacement d of 0.2&#x3c0;a).

Magnetic recording medium

In a magnetic recording system applied to a magnetic recording medium having a magnetic layer composed of a metal magnetic thin film, the error rate of the magnetic recording medium can be reduced by selecting an isolated reproducing waveform half-width less than the shortest recording wavelength to be used.

Method of reducing error rate of magnetic recording medium

There is provided a cleaning tape capable of attaining sufficient cleaning effects while preventing electrostatic discharge damage to magnetoresistive heads or changes in reproduced output due to excessive head wear. The cleaning tape includes a non-magnetic substrate, surface protrusionsformed on the non-magnetic substratewith particleshaving a particle diameter of 10 to 40 nm at a density of 300&#xd7;10to 5000&#xd7;10mm, a metal evaporated film(preferably an electrically conductive layer such as an alloy layer containing Co as a primary component, an Al layer or the like) having a thickness of 10 to 200 nm and an inorganic protection filmhaving a thickness of 3 to 50 nm formed on the metal evaporated film

Cleaning tape with surface protrusions formed by particles of predetermined size/density and non-magnetic metal evaporated film of predetermined thickness

A cleaning tape comprising a nonmagnetic base film, an evaporated metal layer, specifically a magnetic layer or electroconductive layer, formed on the nonmagnetic base film, an inorganic protective film formed on the evaporated metal layer, and surface projections formed on the nonmagnetic base film by particles having a predetermined diameter and density. The tape has a low electric resistivity, a low head abrasion, and a sufficient cleaning effect suitable for cleaning a magnetoresistive type head.

Cleaning tape

A magnetic recording medium having a thin magnetic metal film formed by vapor deposition under an atmosphere of an introduced oxygen gas. The thickness of the surface oxide film having the degree of oxidation of 50% or higher is maintained so as to be not higher than 5% of the total film thickness of the thin magnetic metal film. The magnetic recording medium is affected to a lesser extent by the surface oxide layer such that it is superior in magnetic properties, such as coercivity, and in electromagnetic properties.

A magnetic recording medium has a magnetic layer formed by a thin magnetic metal layer and a carbon protective layer on a non-magnetic substrate; the surface of the carbon protective layer has first protrusions formed by first particles and second protrusions formed by second particles; the carbon protective film has a thickness in the range of 3 nm to 30 nm, while the first protrusions have the heights of 65 nm.+-.15 nm to 95 nm.+-.15 nm and the second protrusions have the heights of 18 nm.+-.5 nm to 28 nm.+-.5 nm; since the surface properties of the carbon protective film are controlled, the electro-magnetic conversion characteristics may be prevented from being lowered due to the spacing losses for improving the running durability of the recording medium.

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Miyagi, Japan

Hidetoshi Honda