EP0334677A1
Expired / Lapsed
EP
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Information recording device and information recording and reproducing process
Assignee: Canon Inc
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Filing: 1989-03-23
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Granted: —
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Expires: 2009-03-23
Abstract
Abstract The present invention relates to an information recording device, comprising: a) a recording medium (1); b) a probe electrode (2) capable of recording on the recording medium by applying a voltage between the electrode and the recording medium; and c) a displacement detecting means (4, 9) for detecting the force acting between the recording medium and the probe electrode as the displacement amount of the probe electrode when they are approximated to each other, and an information recording process comprising: the step of approximating a probe electrode to a recording medium (1) comprising an electroconductive substrate (103) and an organic thin film (102) having electric memory effect formed thereon; the step of detecting the interatomic force acting between the atom of the organic thin film surface and the atom at the tip end of the probe electrode and maintaining the distance between the organic thin film surface and the probe electrode on the basis of such detection; and the step of applying a voltage not lower than the threshold value voltage which causes an electric memory effect between the electroconductive substrate and the probe electrode.
Inventors
- 👤 Hiroyasu Nose
- 👤 Toshimitsu Kawase
- 👤 Akihiko Yamano
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 20:21
CPC Classifications
G; G11; G11B; G11B9/00; G11B9/12; G11B9/14; G11B9/1418; G11B9/1427; G11B9/1436; G11B9/1445; B; B82; B82Y; B82Y10/00; Y; Y10; Y10S; Y10S977/00; Y10S977/84; Y10S977/849; Y10S977/85; Y10S977/851
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
65 words
An information recording device, comprising: a) a recording medium; b) a probe electrode capable of recording on the recording medium by applying a voltage between the electrode and the recording medium; and c) a displacement detecting means for detecting the force acting between the recording medium and the probe electrode as the displacement amount of the probe electrode when they are approximated to each other.
Claim 2
Dependent Claim
65 words
An information recording device, comprising: a) a recording medium; b) a probe electrode capable of recording on the recording medium by applying a voltage between the electrode and the recording medium; and c) a displacement detecting means for detecting the force acting between the recording medium and the probe electrode as the displacement amount of the probe electrode when they are approximated to each other.
Claim 3
Dependent Claim
17 words
The information recording device according to Claim 1, wherein said recording medium has an electric memory effect.
Claim 4
Dependent Claim
22 words
The information recording device according to Claim 1, wherein said recording medium comprises an organic thin film provided on an electroconductive substrate.
Claim 5
Dependent Claim
26 words
The information recording device according to Claim 3, wherein said organic thin film is a monomolecular film of an organic compound or a built-up film thereof.
Claim 6
Dependent Claim
25 words
The information recording device according to Claim 1, wherein said organic thin film has a thickness in the range from several Å to 5000 Å.
Claim 7
Dependent Claim
25 words
The information recording device according to Claim 1, wherein said organic thin film has a thickness in the range from several Å to 500 Å.
Claim 8
Dependent Claim
25 words
The information recording device according to Claim 1, wherein said organic thin film has a thickness in the range from 10 Å to 200 Å.
Claim 9
Dependent Claim
27 words
The information recording device according to Claim 4, wherein said oragnic compound has a group having π-electron level and a group having σ-electron level in the molecule.
Claim 10
Dependent Claim
17 words
The information recording device according to Claim 4, wherein said oragnic compound is an organic dye compound.
Claim 11
Dependent Claim
17 words
The information recording device according to Claim 1, wherein said displacement amount is detected optically or electrically.
Claim 12
Dependent Claim
70 words
An information recording device comprising: a) a recording medium; b) a probe electrode fixed on an elastic member capable of recording on the recording medium by applying a voltage between the electrode and the recording medium; and c) a displacement detecting means for detecting the force acting between the recording medium and the probe electrode as the displacement amount of the elastic member when they are approximated to each other.
Claim 13
Dependent Claim
70 words
An information recording device comprising: a) a recording medium; b) a probe electrode fixed on an elastic member capable of recording on the recording medium by applying a voltage between the electrode and the recording medium; and c) a displacement detecting means for detecting the force acting between the recording medium and the probe electrode as the displacement amount of the elastic member when they are approximated to each other.
Claim 14
Dependent Claim
18 words
The information recording device according to Claim 11 having the features of any of Claims 2 to 10.
Claim 15
Dependent Claim
94 words
The information recording device comprising: a) a recording medium; b) a probe electrode fixed on an elastic member capable of recording on the recording medium by applying a voltage between the electrode and the recording medium; and c) a displacement detecting means for detecting the force acting between the recording medium and the probe electrode as the displacement amount of the elastic member when they are approximated to each other; and d) a position adjusting means for adjusting the distance between the recording medium and the probe electrode based on the above displacement amount.
Claim 16
Dependent Claim
94 words
The information recording device comprising: a) a recording medium; b) a probe electrode fixed on an elastic member capable of recording on the recording medium by applying a voltage between the electrode and the recording medium; and c) a displacement detecting means for detecting the force acting between the recording medium and the probe electrode as the displacement amount of the elastic member when they are approximated to each other; and d) a position adjusting means for adjusting the distance between the recording medium and the probe electrode based on the above displacement amount.
Claim 17
Dependent Claim
18 words
The information recording device according to Claim 13, having the features of any of Claims 2 to 10.
Claim 18
Dependent Claim
125 words
An information recording device comprising: a) a recording medium; b) a first electrode fixed on one surfce of an elastic member capable of performing recording on the recording medium by application of a voltage between the electrode and the recording medium; c) a third electrode, for detecting tunnel current flowing between the second electrode and the third electrode, provided approximated to a second electrode provided on the other surface of the elastic member; and d) an adjusting means for adjusting the distance between the recording medium and the first electrode by detecting the force acting between the recording medium and the first electrode as the change in tunnel current flowing between the second electrode and the third electrode when they are approximated to each other.
Claim 19
Dependent Claim
125 words
An information recording device comprising: a) a recording medium; b) a first electrode fixed on one surfce of an elastic member capable of performing recording on the recording medium by application of a voltage between the electrode and the recording medium; c) a third electrode, for detecting tunnel current flowing between the second electrode and the third electrode, provided approximated to a second electrode provided on the other surface of the elastic member; and d) an adjusting means for adjusting the distance between the recording medium and the first electrode by detecting the force acting between the recording medium and the first electrode as the change in tunnel current flowing between the second electrode and the third electrode when they are approximated to each other.
Claim 20
Dependent Claim
18 words
The information recording device according to Claim 15, having the features of any of Claims 2 to 10.
Claim 21
Dependent Claim
107 words
An information recording process comprising: the step of approximating a probe electrode to a recording medium comprising an electroconductive substrate and an organic thin film having electric memory effect formed thereon; the step of detecting the interatomic force acting between the atom of the organic thin film surface and the atom at the tip end of the probe electrode and maintaining the distance between the organic thin film surface and the probe electrode on the basis of such detection; and the step of applying a voltage not lower than the threshold value voltage which causes an electric memory effect between the electroconductive substrate and the probe electrode.
Claim 22
Dependent Claim
107 words
An information recording process comprising: the step of approximating a probe electrode to a recording medium comprising an electroconductive substrate and an organic thin film having electric memory effect formed thereon; the step of detecting the interatomic force acting between the atom of the organic thin film surface and the atom at the tip end of the probe electrode and maintaining the distance between the organic thin film surface and the probe electrode on the basis of such detection; and the step of applying a voltage not lower than the threshold value voltage which causes an electric memory effect between the electroconductive substrate and the probe electrode.
Claim 23
Dependent Claim
139 words
An information recording process comprising: the step of approximating a probe electrode to a recording medium comprising an electroconductive substrate and an organic thin film having electric memory effect formed thereon; the step of detecting the interatomic force acting between the atom of the organic thin film surface and the atom at the tip end of the probe electrode and maintaining the distance between the organic thin film surface and the probe electrode on the basis of such detection; and the step of applying a voltage not lower than the threshold value voltage which causes an electric memory effect between the electroconductive substrate and the probe electrode; and the step of measuring the current value by applying a voltage not higher than threshold value voltage which causes an electric memory effect between the electroconductive substrate and the probe electrode.
Claim 24
Dependent Claim
139 words
An information recording process comprising: the step of approximating a probe electrode to a recording medium comprising an electroconductive substrate and an organic thin film having electric memory effect formed thereon; the step of detecting the interatomic force acting between the atom of the organic thin film surface and the atom at the tip end of the probe electrode and maintaining the distance between the organic thin film surface and the probe electrode on the basis of such detection; and the step of applying a voltage not lower than the threshold value voltage which causes an electric memory effect between the electroconductive substrate and the probe electrode; and the step of measuring the current value by applying a voltage not higher than threshold value voltage which causes an electric memory effect between the electroconductive substrate and the probe electrode.
Claim 25
Dependent Claim
29 words
An information recording device comprising a recording medium, and a probe electrode for recording on the recording medium by applying a voltage between the electrode and the recording medium.
Claim 26
Dependent Claim
29 words
An information recording device comprising a recording medium, and a probe electrode for recording on the recording medium by applying a voltage between the electrode and the recording medium.
Claim 27
Dependent Claim
31 words
An information recording device comprising a recording medium for storing information as applied voltage, a probe electrode and means for detecting force acting between the recording medium and the probe electrode.
Claim 28
Dependent Claim
31 words
An information recording device comprising a recording medium for storing information as applied voltage, a probe electrode and means for detecting force acting between the recording medium and the probe electrode.
Claim 29
Dependent Claim
27 words
An information recording device comprising a recording medium for storing information as applied voltage and a tunnel current detecting electrode for recording stored information from the medium.
Claim 30
Dependent Claim
27 words
An information recording device comprising a recording medium for storing information as applied voltage and a tunnel current detecting electrode for recording stored information from the medium.
References Cited (Backward Citations)
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