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US5206665A
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Recording medium, method for preparing the same, recording and reproducing device, and recording, reproducing and erasing method by use of such recording medium
Assignee: Canon Inc
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Filing: 1990-08-08
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Granted: 1993-04-27
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Expires: 2010-08-08
Abstract
Abstract The present invention provides a recording medium comprising a recording layer on an electrode substrate and one or a plural number of fine lone electrode made of an electroconductive material provided on said recording layer.
Inventors
- 👤 Hisaaki Kawade
- 👤 Hiroshi Matsuda
- 👤 Yuko Morikawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:57
CPC Classifications
G; G11; G11B; G11B9/00; G11B9/12; G11B9/14; G11B9/1463; G11B9/1472; G11B9/04
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
54 words
A recording medium comprising a recording layer on an electrode substrate, said recording layer comprising an organic compound, and a plurality of fine lone electrodes comprising an electroconductive material disposed systematically on said recording layer wherein a voltage can be applied on the recording medium through said fine lone electrodes on said recording layer.
Claim 2
Dependent Claim
54 words
A recording medium comprising a recording layer on an electrode substrate, said recording layer comprising an organic compound, and a plurality of fine lone electrodes comprising an electroconductive material disposed systematically on said recording layer wherein a voltage can be applied on the recording medium through said fine lone electrodes on said recording layer.
Claim 3
Dependent Claim
23 words
The recording medium according to claim 1, wherein the recording layer contains a monomolecular film or built-up monomolecular films of said organic compound.
Claim 4
Dependent Claim
30 words
The recording medium according to claim 2, wherein the film thickness of said monomolecular film or built-up monomolecular films is in the range of from 4 Å to 1000 Å.
Claim 5
Dependent Claim
30 words
The recording medium according to claim 2, wherein the film thickness of said monomolecular film or built-up monomolecular films is in the range of from 10 Å to 1000 Å.
Claim 6
Dependent Claim
30 words
The recording medium according to claim 2, wherein the film thickness of said monomolecular film or built-up monomolecular films is in the range of from 50 Å to 500 Å.
Claim 7
Dependent Claim
18 words
The recording medium according to claim 2, wherein the monomolecular film or built-up monomolecular films is Langmuir-Blodgett film.
Claim 8
Dependent Claim
23 words
The recording medium according to claim 2, wherein said organic compound has a group having π-electron level and a group having σ-electron level.
Claim 9
Dependent Claim
13 words
The recording medium according to claim 1, which has the electrical memory effect.
Claim 10
Dependent Claim
17 words
The recording medium according to claim 1, wherein each of said fine lone electrode is arranged regularly.
Claim 11
Dependent Claim
33 words
The recording medium according to claim 1, wherein the material of said plurality fine lone electrode is selected from Au, Pt, Ag, Al, In, Sn, Pb, W and alloys thereof, and electroconductive oxides.
Claim 12
Dependent Claim
21 words
The recording medium according to claim 1, wherein said electrode substrate comprises an electroconductive material which forms no insulating oxide film.
Claim 13
Dependent Claim
19 words
The recording medium according to claim 11, wherein the electroconductive material is selected from noble metals or oxide electroconductors.
Claim 14
Dependent Claim
21 words
The recording medium according to claim 1, wherein the fine lone electrode has a size of 10000 μm 2 or less.
Claim 15
Dependent Claim
25 words
The recording medium according to claim 1, wherein each of said plurality of fine lone electrode has a size of 1 μm 2 or less.
Claim 16
Independent Claim
31 words
A method for preparing a medium comprising forming a recording layer on an electrode substrate and forming a plurality of fine lone electrodes comprising an electroconductive material by the lithographic method.
Claim 17
Independent Claim
31 words
A method for preparing a medium comprising forming a recording layer on an electrode substrate and forming a plurality of fine lone electrodes comprising an electroconductive material by the lithographic method.
Claim 18
Dependent Claim
38 words
The method for preparing a recording medium according to claim 15, wherein said recording layer is formed of a monomolecular film or built-up monomolecular films of an organic compound having solvent resistance by use of the Langmuir-Blodgett method.
Claim 19
Independent Claim
91 words
A method for preparing a recording medium comprising the steps of: forming a first electrode layer by depositing an electroconductive material on a substrate; forming a recording layer comprising a monomolecular film or built-up monomolecular films of an organic compound according to the Langmuir-Blodgett method on said electrode layer; forming a second electrode layer by forming an electroconductive material on said recording layer; and forming a plurality of fine lone electrodes from said second layer by coating a resist material on said electrode layer, and exposing and developing said resist material.
Claim 20
Independent Claim
91 words
A method for preparing a recording medium comprising the steps of: forming a first electrode layer by depositing an electroconductive material on a substrate; forming a recording layer comprising a monomolecular film or built-up monomolecular films of an organic compound according to the Langmuir-Blodgett method on said electrode layer; forming a second electrode layer by forming an electroconductive material on said recording layer; and forming a plurality of fine lone electrodes from said second layer by coating a resist material on said electrode layer, and exposing and developing said resist material.
Claim 21
Independent Claim
111 words
A method for preparing a recording medium comprising the steps of: forming a first electrode layer by depositing an electroconductive material on a substrate; forming a recording layer comprising a monomolecular film or built-up monomolecular films of an organic compound according to the Langmuir-Blodgett method on said electrode layer; forming a second electrode layer by forming an electroconductive material on said recording layer; initializing said recording layer by application of a voltage between said first electrode layer and said second electrode layer; and forming a plurality of fine lone electrodes from said second electrode layer by coating a resist material on said electrode layer, and exposing and developing said resist material.
Claim 22
Independent Claim
111 words
A method for preparing a recording medium comprising the steps of: forming a first electrode layer by depositing an electroconductive material on a substrate; forming a recording layer comprising a monomolecular film or built-up monomolecular films of an organic compound according to the Langmuir-Blodgett method on said electrode layer; forming a second electrode layer by forming an electroconductive material on said recording layer; initializing said recording layer by application of a voltage between said first electrode layer and said second electrode layer; and forming a plurality of fine lone electrodes from said second electrode layer by coating a resist material on said electrode layer, and exposing and developing said resist material.
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