EP0394995A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Information record/reproducing apparatus and information recording medium
Assignee: Canon Inc
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Filing: 1990-04-25
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Granted: —
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Expires: 2010-04-25
Abstract
Abstract An improvement on the information record/reproducing apparatus, utilizing a tunnel current generated in a flat information recording medium by a needle-shaped probe electrode (36) positioned close to the recording medium (38). In order to prevent deterioration of the probe and the recording medium by the atmosphere, these components are hermetically sealed in a container (44),(214),(415), with or without the driving mechanism. The sealed structure is made detachable from the main apparatus (215), thus facilitating manufacture, replacement and maintenance.
Inventors
- 👤 Akihiko C/O Canon Kabushiki Kaisha Yamano
- 👤 Hiroyasu C/O Canon Kabushiki Kaisha Nose
- 👤 Toshimitsu C/O Canon Kabushiki Kaisha Kawase
- 👤 Toshihiko C/O Canon Kabushiki Kaisha Miyazaki
- 👤 Takahiro C/O Canon Kabushiki Kaisha Oguchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-08 13:41
CPC Classifications
G; G11; G11B; G11B33/00; G11B33/12; G11B33/121; G11B23/00; G11B23/02; G11B23/021; G11B25/00; G11B33/14; G11B33/1446; G11B33/1466; G11B9/00; G11B9/04; G11B9/12; G11B9/14; G11B9/1409; G11B9/1418; G11B9/1463; G11B9/1472; B; B82; B82Y; B82Y10/00; Y; Y10; Y10S; Y10S977/00; Y10S977/84; Y10S977/849; Y10S977/86; Y10S977/861
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
42 words
An apparatus for information recording and/or reproduction utilizing a recording medium, comprising: a probe for information recording on and/or information reproduction from a recording medium; and seal member for containing at least said probe and said recording medium in a sealed state.
Claim 2
Independent Claim
42 words
An apparatus for information recording and/or reproduction utilizing a recording medium, comprising: a probe for information recording on and/or information reproduction from a recording medium; and seal member for containing at least said probe and said recording medium in a sealed state.
Claim 3
Dependent Claim
41 words
An apparatus according to Claim 1, further comprising means for applying a voltage between said probe and said recording medium, wherein information recording on said recording medium is achieved on the basis of a voltage applied by said voltage applying means.
Claim 4
Dependent Claim
54 words
An apparatus according to Claim 1, further comprising means for applying a voltage between said probe and said recording medium, wherein a tunnel current generating between said probe and said recording medium is detected on the basis of a voltage applied by said voltage applying means, thereby to reproduce information from said recording medium.
Claim 5
Dependent Claim
33 words
An apparatus according to Claim 1, 2 or 3, further comprising drive means for causing a relative motion between said probe and said recording medium to scan said recording medium by said probe.
Claim 6
Dependent Claim
18 words
An apparatus according to Claim 4, wherein said seal means also contains said drive means in sealed state.
Claim 7
Dependent Claim
33 words
An apparatus according to Claim 1, wherein the sealed space of said seal means contains atmospher capable of preventing the time-dependent change of at least one of said probe and said recording medium.
Claim 8
Dependent Claim
15 words
An apparatus according to Claim 6, wherein said sealed space is maintained at high vacuum.
Claim 9
Dependent Claim
13 words
An apparatus according to Claim 6, wherein said sealed space contains purified gas.
Claim 10
Dependent Claim
14 words
An apparatus according to Claim 6, wherein said sealed space contains dried nitrogen gas.
Claim 11
Dependent Claim
13 words
An apparatus according to Claim 6, wherein said sealed space contains paraffin oil.
Claim 12
Dependent Claim
23 words
An apparatus according to Claim 1, further comprising a main body for supporting said seal means, in detachable manner from said main body.
Claim 13
Dependent Claim
25 words
An apparatus according to Claim 2 or 3, further comprising a main body for supporting said seal means, in detachable manner from said main body.
Claim 14
Dependent Claim
69 words
An apparatus according to Claim 12, wherein said voltage applying means is provided in said main body, said main body and said seal means are respectively provided with contact electrodes for electrically connecting said voltage applying means with at least one of said probe and said recording medium, and said contact electrodes are so positioned as to mutually contact when said seal means is mounted on said main body.
Claim 15
Dependent Claim
47 words
An information recording carrier including a recording medium for information recording and/or reproduction by an apparatus for information recording and/or reproduction, comprising: a probe for information recording on and/or information reproduction from said recording medium; and a sealed frame for sealing said recording medium and said probe.
Claim 16
Dependent Claim
47 words
An information recording carrier including a recording medium for information recording and/or reproduction by an apparatus for information recording and/or reproduction, comprising: a probe for information recording on and/or information reproduction from said recording medium; and a sealed frame for sealing said recording medium and said probe.
Claim 17
Dependent Claim
28 words
A carrier according to Claim 14, wherein information recording on said recording medium is achieved by the application of a voltage between said probe and said recording medium.
Claim 18
Dependent Claim
41 words
A carrier according to Claim 14, wherein a tunnel current generated between said probe and said recording medium is detected upon the application of a voltage between said probe and said recording medium, thereby to reproduce information from said recording medium.
Claim 19
Dependent Claim
33 words
A carrier according to Claim 14, 15 or 16, further comprising drive means for causing a relative motion between said probe and said recording medium to scan said recording medium by said probe.
Claim 20
Dependent Claim
15 words
A carrier according to Claim 17, wherein said sealed frame also contains said drive means.
Claim 21
Dependent Claim
33 words
A carrier according to Claim 14, wherein the sealed space of said sealed frame contains atmosphere capable of preventing the time-dependent change of at least one of said probe and said recording medium.
Claim 22
Dependent Claim
15 words
A carrier according to Claim 19, wherein said sealed space is maintained at high vacuum.
Claim 23
Dependent Claim
13 words
A carrier according to Claim 19, wherein said sealed space contains purified gas.
Claim 24
Dependent Claim
14 words
A carrier according to Claim 19, wherein said sealed space contains dried nitrogen gas.
Claim 25
Dependent Claim
13 words
A carrier according to Claim 19, wherein said sealed space contains paraffin oil.
Claim 26
Dependent Claim
25 words
A carrier according to Claim 15 or 16, wherein said sealed frame is attachable to and detachable from an apparatus for information recording and/or reproduction.
Claim 27
Dependent Claim
51 words
A carrier according to Claim 24, wherein said sealed frame comprises a contact electrode for voltage supply from the apparatus for information recording and/or reproduction, said contact electrode being so positioned as to be in contact with a position for voltage application when said sealed frame is mounted on said apparatus.
Claim 28
Dependent Claim
23 words
A carrier according to Claim 14, wherein said sealed frame is attachable to and detachable from an apparatus for information recording and/or reproduction.
Claim 29
Dependent Claim
57 words
An information recording carrier including a recording medium for information recording and/or reproduction by an apparatus for information recording and/or reproduction, comprising: a probe for information recording on and/or information reproduction from said recording medium; and a frame supporting said recording medium and said probe, attachable to and detachable from the apparatus for information recording and/or reproduction.
Claim 30
Dependent Claim
57 words
An information recording carrier including a recording medium for information recording and/or reproduction by an apparatus for information recording and/or reproduction, comprising: a probe for information recording on and/or information reproduction from said recording medium; and a frame supporting said recording medium and said probe, attachable to and detachable from the apparatus for information recording and/or reproduction.
References Cited (Backward Citations)
No citation records indexed.
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