← Back to Patent Explorer
US4529991A Expired / Lapsed US ⏱️ 0.0 years remaining

Method for copying optical information

Assignee: Fujifilm Holdings Corp
•
Filing: 1982-05-20
•
Granted: 1985-07-16
•
Expires: 2002-05-20
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Methods for copying optical information are disclosed. The methods comprise the steps of disposing a master mask with a tracking signal or other information recorded therein over an optical memory material comprised of heat mode recording material which can be thermally altered in order to deform or remove the material upon the application of an energy beam, permitting recording on the altered recording material and irradiating the master disk with flash light for a period of 1 microsecond or less, or in the alternative, scanning with a laser beam focused to a spot having a diameter of at least 10 μm on the master mask with the exposure time at each area of the optical memory material being preferably 1 microsecond or less.

Inventors

  • 👤 Minoru Wada
  • 👤 Yonosuke Takahashi
  • 👤 Eiichi Hasegawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-09 23:13
CPC Classifications
G; G11; G11B; G11B7/00; G11B7/24; G11B7/241; G11B7/252; G11B7/257; B; B41; B41M; B41M5/00; B41M5/24; G03; G03C; G03C1/00; G03C1/705; G11B7/242; G11B7/243; G11B7/26; G11B7/261; G11B2007/24302; G11B2007/24304; G11B2007/24306; G11B2007/24308; G11B2007/2431; G11B2007/24312; G11B2007/24314; G11B2007/24316; G11B2007/24318; G11B2007/2432; G11B2007/24326

Claims Analysis

Total Claims: 25
Claim 1
Independent Claim 181 words
A method of copying optical information, comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material through said master mask by irradiating said master mask with a flash of xenon light for a period of 1 microsecond or less; wherein said heat mode recording material comprises a support having thereon a mixed layer of a metal selected from the group consisting of Sn, Bi, or In, and a substance capable of increasing recording sensitivity selected from the group consisting of PBO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO 2 , InO, In 2 O 3 , In 2 O, chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn and V, halides including PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 , wherein X represents a halogen, As, Sb, P, Ge, Si and Te.
Claim 2
Independent Claim 181 words
A method of copying optical information, comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material through said master mask by irradiating said master mask with a flash of xenon light for a period of 1 microsecond or less; wherein said heat mode recording material comprises a support having thereon a mixed layer of a metal selected from the group consisting of Sn, Bi, or In, and a substance capable of increasing recording sensitivity selected from the group consisting of PBO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO 2 , InO, In 2 O 3 , In 2 O, chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn and V, halides including PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 , wherein X represents a halogen, As, Sb, P, Ge, Si and Te.
Claim 3
Independent Claim 180 words
A method of copying information, comprising the steps of: disposing a master mask with information recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material through said master mask by irradiating the master mask with a flash of xenon light for a period of 1 microsecond or less; and wherein said heat mode recording material comprises a support having thereon a mixed layer of a metal selected from the group consisting of Sn, Bi, or In, and a substance capable of increasing recording sensitivity selected from the group consisting of PBO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO 2 , InO, In 2 O 3 , In 2 O, chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn and V, halides including PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 , wherein X represents a halogen, As, Sb, P, Ge, Si and Te.
Claim 4
Independent Claim 180 words
A method of copying information, comprising the steps of: disposing a master mask with information recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material through said master mask by irradiating the master mask with a flash of xenon light for a period of 1 microsecond or less; and wherein said heat mode recording material comprises a support having thereon a mixed layer of a metal selected from the group consisting of Sn, Bi, or In, and a substance capable of increasing recording sensitivity selected from the group consisting of PBO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO 2 , InO, In 2 O 3 , In 2 O, chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn and V, halides including PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 , wherein X represents a halogen, As, Sb, P, Ge, Si and Te.
Claim 5
Independent Claim 204 words
A method of copying optical information, comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 μm, with the exposure time at each area of the optical memory material being 1 microsecond or less; and wherein said heat mode recording material comprises a support having thereon a mixed layer of a metal selected from the group consisting of Sn, Bi, or In, and a substance capable of increasing recording sensitivity selected from the group consisting of PBO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO 2 , InO, In 2 O 3 , In 2 O, chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn and V, halides including PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 , wherein X represents a halogen, As, Sb, P, Ge, Si and Te.
Claim 6
Independent Claim 204 words
A method of copying optical information, comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 μm, with the exposure time at each area of the optical memory material being 1 microsecond or less; and wherein said heat mode recording material comprises a support having thereon a mixed layer of a metal selected from the group consisting of Sn, Bi, or In, and a substance capable of increasing recording sensitivity selected from the group consisting of PBO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO 2 , InO, In 2 O 3 , In 2 O, chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn and V, halides including PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 , wherein X represents a halogen, As, Sb, P, Ge, Si and Te.
Claim 7
Independent Claim 205 words
A method of copying optical information, comprising the steps of: disposing a master mask with information recorded thereon directly adjacent an optical memory material comprising a heat mode recording material which is capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 μm with the exposure time at each area of the optical memory material being 1 microsecond or less; and wherein said heat mode recording material comprises a support having thereon a mixed layer of a meteral selected from the group consisting of Sn, Bi, or In, and a substance capable of increasing recording sensitivity selected from the group consisting of PBO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO 2 , InO, In 2 O 3 , In 2 O, chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn and V, halides including PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 , wherein X represents a halogen, As, Sb, P, Ge, Si and Te.
Claim 8
Independent Claim 205 words
A method of copying optical information, comprising the steps of: disposing a master mask with information recorded thereon directly adjacent an optical memory material comprising a heat mode recording material which is capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 μm with the exposure time at each area of the optical memory material being 1 microsecond or less; and wherein said heat mode recording material comprises a support having thereon a mixed layer of a meteral selected from the group consisting of Sn, Bi, or In, and a substance capable of increasing recording sensitivity selected from the group consisting of PBO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO 2 , InO, In 2 O 3 , In 2 O, chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn and V, halides including PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 , wherein X represents a halogen, As, Sb, P, Ge, Si and Te.
Claim 9
Independent Claim 39 words
A method of copying optical information as claimed in any one of claims 1, 2, 3 and 4, wherein said substance capable of increasing recording sensitivity is selected from the group consisting of GeS, SnS, and PbI 2 .
Claim 10
Independent Claim 244 words
A method of copying optical information comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by irradiating the master mask with a flash of xenon light for a period of 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a lamination comprised of a layer of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a layer of a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, ZrO 2 , SiO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 11
Independent Claim 244 words
A method of copying optical information comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by irradiating the master mask with a flash of xenon light for a period of 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a lamination comprised of a layer of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a layer of a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, ZrO 2 , SiO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 12
Independent Claim 242 words
A method of copying information, comprising the steps of: disposing a master mask with information recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by irradiating the master mask with a flash of xenon light for a period of 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a lamination comprised of a layer of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, G, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a layer of a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 13
Independent Claim 242 words
A method of copying information, comprising the steps of: disposing a master mask with information recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by irradiating the master mask with a flash of xenon light for a period of 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a lamination comprised of a layer of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, G, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a layer of a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 14
Independent Claim 266 words
A method of copying optical information, comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 micrometers, with the exposure time at each area of the optical memory material being 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a lamination comprised of a layer of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a layer of a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substance containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 15
Independent Claim 266 words
A method of copying optical information, comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 micrometers, with the exposure time at each area of the optical memory material being 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a lamination comprised of a layer of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a layer of a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substance containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 16
Independent Claim 267 words
A method of copying optical information, comprising the steps of: disposing a master mask with information recorded thereon directly adjacent an optical memory material comprising a heat mode recording material which is capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 micrometers, with the exposure time at each area of the optical memory material being 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a lamination comprised of a layer of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a layer of a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 17
Independent Claim 267 words
A method of copying optical information, comprising the steps of: disposing a master mask with information recorded thereon directly adjacent an optical memory material comprising a heat mode recording material which is capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 micrometers, with the exposure time at each area of the optical memory material being 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a lamination comprised of a layer of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a layer of a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 18
Independent Claim 238 words
A method of copying optical information comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by irradiating the master mask with a flash of xenon light for a period of 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a mixed layer comprised of a metal selected from the group consisting of Mg, Sc, Y, Ti, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 19
Independent Claim 238 words
A method of copying optical information comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by irradiating the master mask with a flash of xenon light for a period of 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a mixed layer comprised of a metal selected from the group consisting of Mg, Sc, Y, Ti, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 20
Independent Claim 237 words
A method of copying information, comprising the steps of: disposing a master mask with information recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the applicaion of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by irradiating the master mask with a flash of xenon light for a period of 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a mixed layer comprised of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 21
Independent Claim 237 words
A method of copying information, comprising the steps of: disposing a master mask with information recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the applicaion of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by irradiating the master mask with a flash of xenon light for a period of 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a mixed layer comprised of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 22
Independent Claim 261 words
A method of copying optical information, comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 micrometers, with the exposure time at each area of the optical memory material being 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a mixed layer comprised of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 23
Independent Claim 261 words
A method of copying optical information, comprising the steps of: disposing a master mask with a signal recorded therein directly adjacent an optical memory material comprising a heat mode recording material capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 micrometers, with the exposure time at each area of the optical memory material being 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a mixed layer comprised of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 24
Independent Claim 262 words
A method of copying optical information, comprising the steps of: disposing a master mask with informtion recorded thereon directly adjacent an optical memory material comprising a heat mode recording material which is capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 micrometers, with the exposure time at each area of the optical memory material being 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a mixed layer comprised of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.
Claim 25
Independent Claim 262 words
A method of copying optical information, comprising the steps of: disposing a master mask with informtion recorded thereon directly adjacent an optical memory material comprising a heat mode recording material which is capable of performing thermal recording upon the application of an energy beam; and permitting recording onto said optical memory material by substantially uniformly exposing portions thereof exposed through said master mask by scanning the same with a laser beam focused to a spot having a diameter on the order of and at least 10 micrometers, with the exposure time at each area of the optical memory material being 1 microsecond or less, wherein said heat mode recording material comprises a support having thereon a recording layer comprising a mixed layer comprised of a metal selected from the group consisting of Mg, Sc, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Re, Fe, Co, Ni, Ru, Rh, Pd, Ir, Pt, Cu, Ag, Au, Zn, Cd, Al, Ga, In, Si, Ge, Te, Pb, Po, Sn, As, Sb, Bi, and Se, and a substance capable of increasing recording sensitivity selected from the group consisting of PbO, WO 3 , TiO 2 , SiO, SiO 2 , ZrO 2 , SnO, SnO 2 , InO, In 2 O 3 , and In 2 O; chalcogenide substances containing Ge, In, Sn, Cu, Ag, Fe, Bi, Zn, and V; halides such as PbX 2 , AgX, SnX 2 , SbX 5 and SbX 3 (wherein X represents a halogen, e.g., fluorine, chlorine, bromine, and iodine); and As, Sb, P, Ge, Si, and Te.

References Cited (Backward Citations)

US3588439A Cited
US3610724A Cited
US3990084A Cited
US3911444A Cited
US4000492A Cited
US4334233A Cited
GB2074332A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-07-15 1989-01-14 1989-07-16 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-07-15 1993-01-14 1993-07-16 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-07-15 1997-01-14 1997-07-16 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag