US4383029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording medium and recording system
Assignee: Panasonic Holdings Corp
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Filing: 1982-05-27
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Granted: 1983-05-10
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Expires: 2002-05-27
Abstract
Abstract Disclosed in this invention is a recording medium characterized by forming on the support a recording layer containing a metastable sensitive substance which is an intermediate product of a reaction between a first colorless or light-colored material containing the S atoms released by light irradiation and a second colorless or light-colored material which develops color as it is sulfurized by said S atoms.
Inventors
- 👤 Noboru Yamada
- 👤 Mutsuo Takenaga
- 👤 Kenichi Nishiuchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:49
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/705; Y; Y10; Y10S; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
272 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal, for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being selected from the group consisting of Sb 2 S 3 , In 2 S 3 , ZnS, GeS, GeS 2 , SnS, SnS 2 , Ag 2 S, and Bi 2 S 3 , said second material being selected from the group consisting of SnO, TeO 2 , Pb 3 O 4 , Bi 2 O 3 , In 2 O 3 , Tl 2 O 3 , Sb 2 O 3 , MoO 3 and Ag 2 O, said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, and said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 2
Dependent Claim
272 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal, for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being selected from the group consisting of Sb 2 S 3 , In 2 S 3 , ZnS, GeS, GeS 2 , SnS, SnS 2 , Ag 2 S, and Bi 2 S 3 , said second material being selected from the group consisting of SnO, TeO 2 , Pb 3 O 4 , Bi 2 O 3 , In 2 O 3 , Tl 2 O 3 , Sb 2 O 3 , MoO 3 and Ag 2 O, said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, and said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 3
Dependent Claim
265 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being selected from the group consisting of Sb 2 S 3 , In 2 S 3 , GeS 2 and Bi 2 S 3 , said second material being selected from the group consisting of SnO, TeO 2 , Pb 3 O 4 , Bi 2 O 3 , In 2 O 3 , Tl 2 O 3 , Tl 2 O, Sb 2 O 3 , MoO 3 and Ag 2 O, said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, and said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 4
Dependent Claim
265 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being selected from the group consisting of Sb 2 S 3 , In 2 S 3 , GeS 2 and Bi 2 S 3 , said second material being selected from the group consisting of SnO, TeO 2 , Pb 3 O 4 , Bi 2 O 3 , In 2 O 3 , Tl 2 O 3 , Tl 2 O, Sb 2 O 3 , MoO 3 and Ag 2 O, said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, and said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 5
Dependent Claim
221 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being Sb 2 S 3 , said second material being selected from the group consisting of TeO 2 , Sb 2 O 3 and Pb 3 O 4 , said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, and said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 6
Dependent Claim
221 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being Sb 2 S 3 , said second material being selected from the group consisting of TeO 2 , Sb 2 O 3 and Pb 3 O 4 , said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, and said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 7
Dependent Claim
222 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being GeS 2 , said second material being selected from the group consisting of TeO 2 , MoO 3 , Pb 3 O 4 and Tl 2 O 3 , said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, and said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 8
Dependent Claim
222 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being GeS 2 , said second material being selected from the group consisting of TeO 2 , MoO 3 , Pb 3 O 4 and Tl 2 O 3 , said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, and said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 9
Dependent Claim
207 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by the high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being Bi 2 S 3 , said second material being Tl 2 O 3 , said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 10
Dependent Claim
207 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by the high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being Bi 2 S 3 , said second material being Tl 2 O 3 , said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 11
Dependent Claim
214 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being In 2 S 3 , said second material being selected from the group consisting of TeO 2 and Ag 2 O, said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, and said dissociated sulfur atoms react with said second material to roduce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 12
Dependent Claim
214 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being In 2 S 3 , said second material being selected from the group consisting of TeO 2 and Ag 2 O, said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, and said dissociated sulfur atoms react with said second material to roduce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 13
Dependent Claim
202 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being SnS 2 , said second material being MoO 3 , said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 14
Dependent Claim
202 words
A recording medium adapted to be irradiated with high-density pulsed light in response to a recording signal for recording a visible image, comprising a support, a recording layer formed on said support, said recording layer containing at least a metastable substance composed of an intermediate product of the reaction of a first colorless or light-colored material containing sulfur atoms and a second colorless or light-colored material which develops color upon being sulfurized, the sulfur atoms in said first material being released by high-density pulsed light irradiation and said second material being sulfurized by said released sulfur atoms, said first material being SnS 2 , said second material being MoO 3 , said first and second materials being reacted such that the reaction advances partly to form said metastable substance, whereby when said metastable substance in said recording layer is irradiated with the high-density pulsed light corresponding to a recording signal, sulfur atoms are dissociated from said first material in the irradiated part of the recording layer, said dissociated sulfur atoms react with said second material to produce a colored sulfide to record the recording signal as a visible image directly on the recording medium in response to the high-density pulsed light irradiation.
Claim 15
Dependent Claim
32 words
The recording medium according to claim 1, 2, 3, 4, 5, 6 or 7, wherein said metastable substance is produced by substantially simultaneous deposition of the first material and the second material.
Claim 16
Dependent Claim
15 words
The recording medium according to claim 8, wherein said deposition is carried out by sputtering.
Claim 17
Dependent Claim
30 words
The recording medium according to claim 8, wherein said deposition is carried out under a vacuum of substantially 10 -5 Torr and said recording layer is substantially 1000-2000 A thick.
Claim 18
Dependent Claim
48 words
The recording medium according to claim 1, 2, 3, 4, 5, 6 or 7, wherein said recording layer includes a binding material, the recording layer being formed by mixing said first and second materials by using said binding material and then coating the mixed materials on said support.
Claim 19
Dependent Claim
31 words
The recording medium according to claim 11, wherein said binding material includes at least one material selected from the group consisting of nitrocellulose, polyvinyl alcohol, polyvinyl acetate and polyacrylic acid ester.
References Cited (Backward Citations)
US1962307A
Cited
US2369449A
Cited
US2414839A
Cited
US2749253A
Cited
US3700452A
Cited
US3907566A
Cited
US4188214A
Cited
US4198237A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-09 | 1986-11-08 | 1987-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-09 | 1990-11-08 | 1991-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-09 | 1994-11-08 | 1995-05-10 | $7700.00 | Window Closed / Lapsed |