CA1134508A - Support d'enregistrement et de stockage de donnees par laser a large bande, avec sous-couche absorbante - Google Patents

Support d'enregistrement et de stockage de donnees par laser a large bande, avec sous-couche absorbante

Info

Publication number: CA1134508A
Authority: CA; Canada
Prior art keywords: silver; layer; medium; halide; reflective
Prior art date: 1980-02-15
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired

Application number

CA000355411A

Other languages

English (en)

Inventor

Eric Bouldin

Jerome Drexler

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Drexler Technology Corp

Original Assignee

Drexler Technology Corp

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

1980-02-15

Filing date

1980-07-04

Publication date

1982-10-26

1980-04-14 Priority claimed from US06/140,136 external-priority patent/US4284716A/en

1980-07-04 Application filed by Drexler Technology Corp filed Critical Drexler Technology Corp

1982-10-26 Application granted granted Critical

1982-10-26 Publication of CA1134508A publication Critical patent/CA1134508A/fr

Status Expired legal-status Critical Current

Links

238000013500 data storage Methods 0.000 title claims abstract description 18
229910052709 silver Inorganic materials 0.000 claims abstract description 247
239000004332 silver Substances 0.000 claims abstract description 247
BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 202
239000000839 emulsion Substances 0.000 claims abstract description 59
238000000034 method Methods 0.000 claims abstract description 57
-1 silver halide Chemical class 0.000 claims abstract description 48
239000002245 particle Substances 0.000 claims abstract description 38
230000001376 precipitating effect Effects 0.000 claims abstract description 31
230000008569 process Effects 0.000 claims abstract description 24
238000009792 diffusion process Methods 0.000 claims abstract description 22
238000012546 transfer Methods 0.000 claims abstract description 21
239000011159 matrix material Substances 0.000 claims abstract description 15
FOIXSVOLVBLSDH-UHFFFAOYSA-N Silver ion Chemical class [Ag+] FOIXSVOLVBLSDH-UHFFFAOYSA-N 0.000 claims abstract description 12
239000000084 colloidal system Substances 0.000 claims abstract description 9
238000009738 saturating Methods 0.000 claims abstract description 9
239000010410 layer Substances 0.000 claims description 106
230000003287 optical effect Effects 0.000 claims description 53
238000002310 reflectometry Methods 0.000 claims description 50
108010010803 Gelatin Proteins 0.000 claims description 33
239000008273 gelatin Substances 0.000 claims description 33
235000019322 gelatine Nutrition 0.000 claims description 33
235000011852 gelatine desserts Nutrition 0.000 claims description 33
229920000159 gelatin Polymers 0.000 claims description 32
239000003795 chemical substances by application Substances 0.000 claims description 30
230000005855 radiation Effects 0.000 claims description 26
239000002904 solvent Substances 0.000 claims description 24
239000000758 substrate Substances 0.000 claims description 15
239000002344 surface layer Substances 0.000 claims description 15
239000003638 chemical reducing agent Substances 0.000 claims description 11
150000003378 silver Chemical class 0.000 claims description 11
238000004519 manufacturing process Methods 0.000 claims description 5
230000003247 decreasing effect Effects 0.000 claims description 2
239000011664 nicotinic acid Substances 0.000 claims description 2
150000001450 anions Chemical class 0.000 claims 3
238000011161 development Methods 0.000 abstract description 28
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
230000008018 melting Effects 0.000 abstract description 9
238000002844 melting Methods 0.000 abstract description 9
230000007935 neutral effect Effects 0.000 abstract description 6
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239000002609 medium Substances 0.000 description 80
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OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 21
230000035945 sensitivity Effects 0.000 description 19
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239000010408 film Substances 0.000 description 14
239000000463 material Substances 0.000 description 14
CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 12
230000035515 penetration Effects 0.000 description 10
KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 9
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229910052751 metal Inorganic materials 0.000 description 9
239000002184 metal Substances 0.000 description 9
239000008139 complexing agent Substances 0.000 description 8
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PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical compound [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 8
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IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 6
VGTPCRGMBIAPIM-UHFFFAOYSA-M sodium thiocyanate Chemical compound [Na+].[S-]C#N VGTPCRGMBIAPIM-UHFFFAOYSA-M 0.000 description 6
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QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 4
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235000010265 sodium sulphite Nutrition 0.000 description 4
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DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 3
239000003963 antioxidant agent Substances 0.000 description 3
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229910052708 sodium Inorganic materials 0.000 description 3
VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
WQDUMFSSJAZKTM-UHFFFAOYSA-N Sodium methoxide Chemical compound [Na+].[O-]C WQDUMFSSJAZKTM-UHFFFAOYSA-N 0.000 description 2
229910052946 acanthite Inorganic materials 0.000 description 2
239000000908 ammonium hydroxide Substances 0.000 description 2
QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 2
239000012964 benzotriazole Substances 0.000 description 2
150000001875 compounds Chemical class 0.000 description 2
238000001035 drying Methods 0.000 description 2
150000004820 halides Chemical class 0.000 description 2
238000007654 immersion Methods 0.000 description 2
238000010348 incorporation Methods 0.000 description 2
239000000155 melt Substances 0.000 description 2
239000002667 nucleating agent Substances 0.000 description 2
CMCWWLVWPDLCRM-UHFFFAOYSA-N phenidone Chemical compound N1C(=O)CCN1C1=CC=CC=C1 CMCWWLVWPDLCRM-UHFFFAOYSA-N 0.000 description 2
229910052700 potassium Inorganic materials 0.000 description 2
239000011591 potassium Substances 0.000 description 2
XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 2
229940056910 silver sulfide Drugs 0.000 description 2
238000001228 spectrum Methods 0.000 description 2
238000004544 sputter deposition Methods 0.000 description 2
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150000003567 thiocyanates Chemical class 0.000 description 2
150000004764 thiosulfuric acid derivatives Chemical class 0.000 description 2
UMGDCJDMYOKAJW-UHFFFAOYSA-N thiourea Chemical compound NC(N)=S UMGDCJDMYOKAJW-UHFFFAOYSA-N 0.000 description 2
230000007704 transition Effects 0.000 description 2
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
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239000010937 tungsten Substances 0.000 description 2
238000005406 washing Methods 0.000 description 2
GVJMAWXOOXRVSU-UHFFFAOYSA-N (2-hydroxyphenyl) hydrogen sulfite Chemical compound OC1=CC=CC=C1OS(O)=O GVJMAWXOOXRVSU-UHFFFAOYSA-N 0.000 description 1
LELOSUUWMPCMEY-MGMRMFRLSA-N (2r)-2-[(1s)-1,2-dihydroxyethyl]-3,4-dihydroxy-2h-furan-5-one;4-(methylamino)phenol Chemical compound CNC1=CC=C(O)C=C1.OC[C@H](O)[C@H]1OC(=O)C(O)=C1O LELOSUUWMPCMEY-MGMRMFRLSA-N 0.000 description 1
CBCKQZAAMUWICA-UHFFFAOYSA-N 1,4-phenylenediamine Chemical compound NC1=CC=C(N)C=C1 CBCKQZAAMUWICA-UHFFFAOYSA-N 0.000 description 1
BSKHPKMHTQYZBB-UHFFFAOYSA-N 2-methylpyridine Chemical compound CC1=CC=CC=N1 BSKHPKMHTQYZBB-UHFFFAOYSA-N 0.000 description 1
WUPHOULIZUERAE-UHFFFAOYSA-N 3-(oxolan-2-yl)propanoic acid Chemical compound OC(=O)CCC1CCCO1 WUPHOULIZUERAE-UHFFFAOYSA-N 0.000 description 1
QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
238000012935 Averaging Methods 0.000 description 1
235000003197 Byrsonima crassifolia Nutrition 0.000 description 1
240000001546 Byrsonima crassifolia Species 0.000 description 1
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101710184444 Complexin Proteins 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
101000998132 Homo sapiens Interleukin-34 Proteins 0.000 description 1
AVXURJPOCDRRFD-UHFFFAOYSA-N Hydroxylamine Chemical compound ON AVXURJPOCDRRFD-UHFFFAOYSA-N 0.000 description 1
102100033499 Interleukin-34 Human genes 0.000 description 1
WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
206010034972 Photosensitivity reaction Diseases 0.000 description 1
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XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Natural products NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
VLQJLCPUFJQYTF-UHFFFAOYSA-N [4-(methylamino)phenyl] hydrogen sulfite Chemical compound CNC1=CC=C(OS(O)=O)C=C1 VLQJLCPUFJQYTF-UHFFFAOYSA-N 0.000 description 1
230000003213 activating effect Effects 0.000 description 1
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238000005054 agglomeration Methods 0.000 description 1
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XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
238000000137 annealing Methods 0.000 description 1
229910052786 argon Inorganic materials 0.000 description 1
239000012298 atmosphere Substances 0.000 description 1
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
ZMMDLZKREDWWIK-UHFFFAOYSA-N benzene-1,4-diol;sulfurous acid Chemical compound OS(O)=O.OC1=CC=C(O)C=C1 ZMMDLZKREDWWIK-UHFFFAOYSA-N 0.000 description 1
230000005540 biological transmission Effects 0.000 description 1
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JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
229910052980 cadmium sulfide Inorganic materials 0.000 description 1
229940116367 cadmium sulfide Drugs 0.000 description 1
229910052792 caesium Inorganic materials 0.000 description 1
TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
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KXZJHVJKXJLBKO-UHFFFAOYSA-N chembl1408157 Chemical compound N=1C2=CC=CC=C2C(C(=O)O)=CC=1C1=CC=C(O)C=C1 KXZJHVJKXJLBKO-UHFFFAOYSA-N 0.000 description 1
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ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
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XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
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229940057952 methanol Drugs 0.000 description 1
SYJXFKPQNSDJLI-HKEUSBCWSA-N neamine Chemical compound N[C@@H]1[C@@H](O)[C@H](O)[C@@H](CN)O[C@@H]1O[C@H]1[C@H](O)[C@@H](O)[C@H](N)C[C@@H]1N SYJXFKPQNSDJLI-HKEUSBCWSA-N 0.000 description 1
HYWYRSMBCFDLJT-UHFFFAOYSA-N nimesulide Chemical compound CS(=O)(=O)NC1=CC=C([N+]([O-])=O)C=C1OC1=CC=CC=C1 HYWYRSMBCFDLJT-UHFFFAOYSA-N 0.000 description 1
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239000002244 precipitate Substances 0.000 description 1
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UCSJYZPVAKXKNQ-HZYVHMACSA-N streptomycin Chemical compound CN[C@H]1[C@H](O)[C@@H](O)[C@H](CO)O[C@H]1O[C@@H]1[C@](C=O)(O)[C@H](C)O[C@H]1O[C@@H]1[C@@H](NC(N)=N)[C@H](O)[C@@H](NC(N)=N)[C@H](O)[C@H]1O UCSJYZPVAKXKNQ-HZYVHMACSA-N 0.000 description 1
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Classifications

- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/02—Photosensitive materials characterised by the image-forming section
- G03C8/04—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of inorganic or organo-metallic compounds derived from photosensitive noble metals
- G03C8/06—Silver salt diffusion transfer
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/40—Chemically transforming developed images
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- G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
- G11B7/0045—Recording
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- G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track
- G11B7/013—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track for discrete information, i.e. where each information unit is stored in a distinct discrete location, e.g. digital information formats within a data block or sector
- G—PHYSICS
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- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/241—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material
- G11B7/242—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers
- G11B7/251—Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising inorganic materials dispersed in an organic matrix
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- G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
- G11B7/26—Apparatus or processes specially adapted for the manufacture of record carriers
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- G11B7/28—Re-recording, i.e. transcribing information from one optical record carrier on to one or more similar or dissimilar record carriers
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- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C13/00—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00
- G11C13/04—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam
- G11C13/048—Digital stores characterised by the use of storage elements not covered by groups G11C11/00, G11C23/00, or G11C25/00 using optical elements ; using other beam accessed elements, e.g. electron or ion beam using other optical storage elements

Landscapes

Physics & Mathematics (AREA)
Chemical & Material Sciences (AREA)
Inorganic Chemistry (AREA)
General Physics & Mathematics (AREA)
Dispersion Chemistry (AREA)
Mathematical Physics (AREA)
Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Silver Salt Photography Or Processing Solution Therefor (AREA)
Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)

CA000355411A 1980-02-15 1980-07-04 Support d'enregistrement et de stockage de donnees par laser a large bande, avec sous-couche absorbante Expired CA1134508A (fr)

Applications Claiming Priority (4)

Application Number	Priority Date	Filing Date	Title
US12173280A	1980-02-15	1980-02-15
US121,732		1980-02-15
US140,136		1980-04-14
US06/140,136 US4284716A (en)	1979-07-06	1980-04-14	Broadband reflective laser recording and data storage medium with absorptive underlayer

Publications (1)

Publication Number	Publication Date
CA1134508A true CA1134508A (fr)	1982-10-26

Family

ID=26819752

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA000355411A Expired CA1134508A (fr)	1980-02-15	1980-07-04	Support d'enregistrement et de stockage de donnees par laser a large bande, avec sous-couche absorbante

Country Status (10)

Country	Link
BR (1)	BR8100849A (fr)
CA (1)	CA1134508A (fr)
CH (1)	CH650611A5 (fr)
DK (1)	DK62781A (fr)
ES (1)	ES499424A0 (fr)
GB (1)	GB2074333B (fr)
IL (1)	IL62139A (fr)
IT (1)	IT1174321B (fr)
MX (1)	MX151078A (fr)
NO (1)	NO157597C (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5933192A (ja) *	1982-08-18	1984-02-22	Konishiroku Photo Ind Co Ltd	記録媒体

1980
- 1980-07-04 CA CA000355411A patent/CA1134508A/fr not_active Expired
- 1980-11-12 IT IT50136/80A patent/IT1174321B/it active
1981
- 1981-02-12 NO NO810481A patent/NO157597C/no unknown
- 1981-02-12 BR BR8100849A patent/BR8100849A/pt unknown
- 1981-02-13 DK DK62781A patent/DK62781A/da not_active Application Discontinuation
- 1981-02-13 ES ES499424A patent/ES499424A0/es active Granted
- 1981-02-13 CH CH984/81A patent/CH650611A5/fr not_active IP Right Cessation
- 1981-02-15 IL IL62139A patent/IL62139A/xx unknown
- 1981-02-16 GB GB8104809A patent/GB2074333B/en not_active Expired
- 1981-02-16 MX MX185998A patent/MX151078A/es unknown

Also Published As

Publication number	Publication date
IL62139A (en)	1984-12-31
DK62781A (da)	1981-08-16
GB2074333A (en)	1981-10-28
NO810481L (no)	1981-08-17
IL62139A0 (en)	1981-03-31
NO157597C (no)	1988-04-13
ES8202975A1 (es)	1982-02-01
IT8050136A0 (it)	1980-11-12
GB2074333B (en)	1984-02-01
BR8100849A (pt)	1981-08-25
IT1174321B (it)	1987-07-01
MX151078A (es)	1984-09-24
ES499424A0 (es)	1982-02-01
NO157597B (no)	1988-01-04
CH650611A5 (fr)	1985-07-31

Legal Events

Date	Code	Title	Description
1999-10-26	MKEX	Expiry

Publication	Publication Date	Title
US4312938A (en)	1982-01-26	Method for making a broadband reflective laser recording and data storage medium with absorptive underlayer
US4284716A (en)	1981-08-18	Broadband reflective laser recording and data storage medium with absorptive underlayer
US4269917A (en)	1981-05-26	Data storage medium having reflective particulate silver layer
CA1147462A (fr)	1983-05-31	Support d'enregistrement de donnees reflechissant fabrique par transfert d'argent par diffusion
US4278758A (en)	1981-07-14	Process for making a reflective data storage medium
US4298684A (en)	1981-11-03	Reflective data storage medium made by silver diffusion transfer in silver-halide emulsion incorporating nuclei
US4343879A (en)	1982-08-10	Multiple layer optical data storage and recording media
US4383024A (en)	1983-05-10	Method of making a highly absorptive dye-containing underlayer for laser recording and data storage
US4363870A (en)	1982-12-14	Method for making a reflective laser recording and data storage medium with a dark underlayer
US4463089A (en)	1984-07-31	Reflective optical data storage and laser recording medium
CA1134508A (fr)	1982-10-26	Support d'enregistrement et de stockage de donnees par laser a large bande, avec sous-couche absorbante
CA1137345A (fr)	1982-12-14	Methode de fabrication d'un support de stockage de donnees reflechissant
IE50844B1 (en)	1986-07-23	A broadband reflective laser recording and data storage medium with absorptive underlayer
GB2101759A (en)	1983-01-19	Reflective data storage medium
CA1134949A (fr)	1982-11-02	Methode de duplication photographique de donnees enregistrees sur un support optique
JPS59502139A (ja)	1984-12-27	反射性光学デ−タ記憶とレ−ザ記録の媒体
GB2081461A (en)	1982-02-17	Double-sided silver halide material
JPH0452237B2 (fr)	1992-08-21
NL8006248A (nl)	1982-06-01	Reflecterend medium voor het opslaan van gegevens en werkwijze ter vervaardiging hiervan.
JPS58147825A (ja)	1983-09-02	光学的情報記録媒体
JPS58188346A (ja)	1983-11-02	反射性の光データ記録媒体