Kabushiki Kaisha Toshiba

Kuniyoshi Tanaka

Hiroyuki Hieda

Katsuyuki Naito

Nobuhiro Gemma

Shunji Shirouzu

Hideo Miyagawa

Minoru Ohta

Akira Kikitsu

Tsutomu Tanaka

Junichi Akiyama

Katsutaro Ichihara

Syun Egusa

Takashi Ishino

Miyoko Watanabe

Electrons are directed from an electron emitter towards a magnetic recording medium to heat a recording portion of the magnetic recording medium and magnetic information is written by a magnetic recording head to the temperature-elevated recording portion. Otherwise, a magnetic head having a magnetic pole is used and the magnetic pole serves as an electron emitter as well. Alternatively, a space between the electron emitter and recording medium is made shorter smaller the mean free path of electrons in the atmosphere to considerably improve the recording density.

Thermally-assisted magnetic recording and reproducing device having an electron beam thermal source

The present invention provides a pattern forming method including the steps of forming a first thin film on an object to be etched, forming a first surface region and a second surface region on a surface of the object by modifying or removing a portion of the first thin film, the first and second surface regions differing from each other in the surface state, forming a second thin film on the first surface region by utilizing the difference in the surface state between the first and second surface regions, the second thin film being amorphous and thicker than the first thin film, and etching the object using the second thin film as an etching mask.

Pattern forming method and method of manufacturing device having fine pattern

This invention is characterized in that information is recorded by injecting electric charge into a charge holding region made from a donor or acceptor, and the recorded information is reproduced by using changes in luminescence characteristics of the luminescent material contained in the charge holding region or a light emitting region formed near the charge holding region, that occur in accordance with the charge condition of the charge holding region.

Luminescent recording layer holding a plurality of positive or negative

A recording medium includes an underlying conductor layer, an insulating layer formed on the underlying conductor layer, and a recording layer formed with a domain structure on the insulating layer, wherein the recording layer contains a domain constituent material and an impurity whose molar ratio to the domain constituent material is 10% or lower, and the highest occupied molecular orbital of the impurity is higher in energy than the highest occupied molecular orbital of the domain constituent element, or the lowest unoccupied molecular orbital of the impurity is lower in energy than the lowest unoccupied molecular orbital of the domain constituent material.

Recording medium and recording/reproduction method

In a system for measuring a surface potential of a sample, a probe is located above. A surface of the sample with a small gap and is vibrated by a piezoelectronic element which is energized by a oscillator. A potential of the distal end of the probe is changed and is converted into an electrical signal. The surface potential is obtained from the electrical signal.

Surface potential measuring system

A probe arranged to oppose a sample is coupled to a driving portion constituted by an actuator capable of obtaining a large expansion/contraction amount and an actuator capable of obtaining a small expansion/contraction amount. In order to keep the gap length between the sample and the probe constant, a first gap length control system drives the actuator and a second gap length control system having a driving time constant smaller than that of the first gap length control system drives the actuator in response to changes in gap length between the sample and the probe.

Scanning probe microscopy

A precision moving mechanism can rotate a table continuously and precisely. A first drive disk is made of first and second movable sections and a resilient hinge connecting these sections. A first piezoelectric element has ends coupled to these sections, which can be attached to a first base by first and second members. A second drive disk is made of third and fourth movable sections and a resilient hinge connecting these sections. A second piezoelectric element has ends coupled to these sections, which can be attached to the second base by third and fourth members. The second and third sections are coupled to the second base and table, respectively. During the first period, the first member attaches the first section to the first base, the fourth member attaches the fourth section to the second base, and the first element expands, and the second element contracts, whereby the second section slightly rotates to rotate the table. During the second period, the second member 46 attaches the second section to the first base, the third member attaches the third section to the second base, the first element contracts and the second element expands, whereby the fourth section slightly rotates to rotate the table.

Growing community of inventors

Yokohama, Japan

Kuniyoshi Tanaka