Patent US4883741A successfully refreshed from Google Patents.
US4883741A
Expired / Lapsed
US
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Information recording medium
Assignee: Fujifilm Holdings Corp
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Filing: 1987-08-28
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Granted: 1989-11-28
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Expires: 2007-08-28
Abstract
Abstract A novel information recording medium comprising a substrate and a recording layer for writing information by means of laser beam which is provided on the substrate is disclosed. The recording layer contains an organic metal complex compound and a sensitizing agent for laser beam. Alternatively, the recording layer contains an organic metal complex compound and this recording layer is arranged in contact with a layer of a sensitizing agent for laser beam.
Inventors
- 👤 Younosuke Takahashi
- 👤 Takayuki Kuriyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:56
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/26; Y; Y10; Y10S; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
109 words
A process for recording information on a recording layer arranged on a substrate, said recording layer containing an organic metal complex compound having the formula: MmLn where M is a metal atom belonging to one of groups Ib, IVb, Vb, VIb, VIIb, or VIII of the Periodic Table, L is a ligand, m is an integer from 1 to 4, and n is an integer from 2 to 12, and a sensitizing dye capable of absorbing near infrared rays, by irradiating the recording layer with a laser beam to deposit a metal component in the recording layer at the irradiated area by decomposition of the organic metal complex compound.
Claim 2
Dependent Claim
109 words
A process for recording information on a recording layer arranged on a substrate, said recording layer containing an organic metal complex compound having the formula: MmLn where M is a metal atom belonging to one of groups Ib, IVb, Vb, VIb, VIIb, or VIII of the Periodic Table, L is a ligand, m is an integer from 1 to 4, and n is an integer from 2 to 12, and a sensitizing dye capable of absorbing near infrared rays, by irradiating the recording layer with a laser beam to deposit a metal component in the recording layer at the irradiated area by decomposition of the organic metal complex compound.
Claim 3
Dependent Claim
41 words
The process for recording information as claimed in claim 1, wherein said metal atom is selected from the group consisting of titanium, zirconium, vanadium, chromium, molybdenum, tungsten, manganese, rhenium, iron, cobalt, nickel, ruthenium, osmium, rhodium, palladium, iridium, platinum, copper, and gold.
Claim 4
Dependent Claim
39 words
The process for recording information as claimed in claim 1, wherein said organic metal complex compound is selected from the group consisting of di-μ-chloro-bis (η-2-methylallyl)-dipalladium (II), di-μ-chloro-tetracarbonyl dirhodium (I), tetrakis (triphenylphosphine) palladium (O), and di-μ-chloro-bis (1, 5-cyclooctadiene) diiridium (II).
Claim 5
Dependent Claim
88 words
The process for recording information as claimed in claim 1, wherein said dye is selected from the group consisting of a nitroso compound, a metal complex salt thereof, a methine dye, a cyanine dye, a merocyanine dye, a complex cyanine dye, a complex merocyanine dye, a holopolar cyanine dye, a hemicyanine dye, a styryl dye, a hemioxanol dye, a squarillium dye, a thiol nickel complex salt, a phthalocyanine dye, a triallylmethane dye, a triphenylmethane dye, an immonium dye, a diimmonium dye, a napthoquinone dye, and an anthraquinone dye.
Claim 6
Dependent Claim
112 words
A process for recording information on a recording layer arranged in contact with a layer containing a sensitizing agent for a laser beam and a substrate, said recording layer containing an organic metal complex compound having the formula: MmLn wherein M is a metal atom belonging to one of groups Ib, IVb, Vb, VIb, VIIb, or VIII of the Periodic Table, L is a ligand, m is an integer from 1 to 4, and n is an integer from 2 to 12, by irradiating the recording layer with a laser beam to deposit a metal component in the recording layer at the irradiated area by decomposition of the organic metal complex compound.
Claim 7
Dependent Claim
112 words
A process for recording information on a recording layer arranged in contact with a layer containing a sensitizing agent for a laser beam and a substrate, said recording layer containing an organic metal complex compound having the formula: MmLn wherein M is a metal atom belonging to one of groups Ib, IVb, Vb, VIb, VIIb, or VIII of the Periodic Table, L is a ligand, m is an integer from 1 to 4, and n is an integer from 2 to 12, by irradiating the recording layer with a laser beam to deposit a metal component in the recording layer at the irradiated area by decomposition of the organic metal complex compound.
Claim 8
Dependent Claim
30 words
The process for recording information as claimed in claim 5, wherein said sensitizing agent for laser beam is composed of a metal or a semimetal having laser beam absorption characteristics.
Claim 9
Dependent Claim
38 words
The process for recording information as claimed in claim 5, wherein said organic metal complex compound is selected from the group consisting of di-μ-chloro-bis (η-2-methylallyl)-dipalladium (II), di-μ-chlorotetracarbonyl dirhodium (I), tetrakis (triphenylphosphine) palladium (O), and di-μ-chloro-bis (1,5-ccyclooctadiene) diiridium (II).
Claim 10
Dependent Claim
41 words
The process for recording information as claimed in claim 5, wherein said metal atom is selected from the group consisting of titanium, zirconium, vanadium, chromium, molybdenum, tungsten, manganese, rhenium, iron, cobalt, nickel, ruthenium, osmium, rhodium, palladium, iridium, platinum, copper and gold.
Claim 11
Dependent Claim
84 words
A process for recording information on a recording layer arranged on a substrate, said recording layer containing an organic metal complex compound which is selected from the group consisting of di-μ-chloro-bis (η-2-methylallyl)-dipalladium (II), di-μ-chloro-tetracarbonyl dirhodium (I), tetrakis (triphenylphosphine) palladium (O), and di-μ-chloro-bis (1, 5-cyclooctadiene) diiridium (II) and a sensitizing agent for a laser beam, by irradiating the recording layer with a laser beam to deposit a metal component in the recording layer at the irradiated area by decomposition of the organic metal complex compound.
Claim 12
Dependent Claim
84 words
A process for recording information on a recording layer arranged on a substrate, said recording layer containing an organic metal complex compound which is selected from the group consisting of di-μ-chloro-bis (η-2-methylallyl)-dipalladium (II), di-μ-chloro-tetracarbonyl dirhodium (I), tetrakis (triphenylphosphine) palladium (O), and di-μ-chloro-bis (1, 5-cyclooctadiene) diiridium (II) and a sensitizing agent for a laser beam, by irradiating the recording layer with a laser beam to deposit a metal component in the recording layer at the irradiated area by decomposition of the organic metal complex compound.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-11-27 | 1993-05-29 | 1993-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-27 | 1997-05-29 | 1997-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-27 | 2001-05-29 | 2001-11-28 | $7700.00 | Window Closed / Lapsed |