US4078935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support member
Assignee: Fujifilm Holdings Corp
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Filing: 1975-04-30
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Granted: 1978-03-14
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Expires: 1995-04-30
Abstract
Abstract A support member comprising a polymer material and a transparent and electrically conductive metal oxide semi-conductor layer on the polymer material. Alternatively, the support member comprises a polymer material, and a transparent and electrically conductive metal oxide semi-conductor layer and a metal fluoride layer on the polymer material. The support member can be used as a support for a photographic member.
Inventors
- 👤 Takashi Nakagiri
- 👤 Takayuki Inayama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:17
CPC Classifications
G; G03; G03C; G03C1/00; G03C1/76; G03C1/85; G03C1/853; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
99 words
A photographic recording member comprising (a) a support member which comprises a polymer material having thereon a binderless, transparent and electrically conductive layer consisting essentially of a metal oxide semiconductor on said polymer material, said metal oxide semiconductor being selected from the oxides of metals of Groups IVb and Vb of the Periodic Table wherein the oxygen content thereof deviates from the stoichiometric ratio sufficiently that the electrical resistance of said semiconductor is between 10 -2 to 10 10 Ω cm and (b) a photographic emulsion layer containing a hydrophilic polymer binder on one side of said support member.
Claim 2
Dependent Claim
99 words
A photographic recording member comprising (a) a support member which comprises a polymer material having thereon a binderless, transparent and electrically conductive layer consisting essentially of a metal oxide semiconductor on said polymer material, said metal oxide semiconductor being selected from the oxides of metals of Groups IVb and Vb of the Periodic Table wherein the oxygen content thereof deviates from the stoichiometric ratio sufficiently that the electrical resistance of said semiconductor is between 10 -2 to 10 10 Ω cm and (b) a photographic emulsion layer containing a hydrophilic polymer binder on one side of said support member.
Claim 3
Dependent Claim
18 words
The photographic recording member according to claim 1, wherein the polymer material is a surface activated polymer material.
Claim 4
Dependent Claim
26 words
The photographic recording member according to claim 2, wherein the surface activated polymer material is a polymer material surface activated by glow discharge or electrode-less discharge.
Claim 5
Dependent Claim
15 words
The photographic recording member according to claim 1, wherein the metal is titanium or zirconium.
Claim 6
Dependent Claim
25 words
The photographic recording member according to claim 1, wherein the thickness of the metal oxide semi-conductor layer is from about 30 A to 150 A.
Claim 7
Dependent Claim
22 words
The photographic recording member according to claim 1, wherein said metal oxide is TiO x and x is about 1.4 to 1.99.
Claim 8
Dependent Claim
28 words
The photographic recording material according to claim 1 wherein said support member also has thereon a metal fluoride layer having a refractive index of about 1.2 to 1.4.
Claim 9
Dependent Claim
31 words
The photographic recording member according to claim 7, wherein the metal oxide semi-conductor layer is on the polymer material and the metal fluoride layer is on the metal oxide semi-conductor layer.
Claim 10
Dependent Claim
30 words
The photographic recording member according to claim 7, wherein the metal fluoride layer is on the polymer material and the metal oxide semi-conductor layer is on the metal fluoride layer.
Claim 11
Dependent Claim
42 words
The photographic recording member according to claim 7, wherein the metal fluoride layer is on the polymer material, the metal oxide semi-conductor layer is on the metal fluoride layer, and further including a metal fluoride layer on the metal oxide semi-conductor layer.
Claim 12
Dependent Claim
18 words
The photographic recording member according to claim 7, wherein the polymer material is a surface activated polymer material.
Claim 13
Dependent Claim
25 words
The photographic recording member according to claim 11, wherein the surface activated polymer material is a polymer material activated by glow discharge or electrode-less discharge.
Claim 14
Dependent Claim
15 words
The photographic recording member according to claim 7, wherein the metal is titanium or zirconium.
Claim 15
Dependent Claim
23 words
The photographic recording member according to claim 7, wherein the metal fluoride is a fluoride of sodium, aluminum, lithium, magnesium, calcium or potassium.
Claim 16
Dependent Claim
25 words
The photographic recording member according to claim 7, wherein the thickness of the metal oxide semi-conductor layer is from about 30 A to 150 A.
Claim 17
Dependent Claim
28 words
The photographic recording member according to claim 9, wherein the thickness of the metal fluoride layer directly on the polymer material is from about 100 to 500 A.
Claim 18
Dependent Claim
28 words
The photographic recording member according to claim 10, wherein the thickness of the metal fluoride layer directly on the polymer material is from about 100 to 500 A.
Claim 19
Dependent Claim
28 words
The photographic recording member according to claim 8, wherein the thickness of the metal fluoride layer on the metal oxide layer is from about 1,000 to 1,300 A.
Claim 20
Dependent Claim
28 words
The photographic recording member according to claim 10, wherein the thickness of the metal fluoride layer on the metal oxide layer is from about 1,000 to 1,300 A.
Claim 21
Dependent Claim
30 words
The photographic recording member according to claim 7 wherein the metal fluoride is a member selected from the group consisting of magnesium fluoride, lithium fluoride, calcium fluoride, cryolite and chiolite.
Claim 22
Dependent Claim
14 words
The photographic recording member according to claim 20, wherein the metal fluoride is cryolite.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-03-13 | 1981-09-12 | 1982-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-13 | 1985-09-12 | 1986-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-13 | 1989-09-12 | 1990-03-14 | $7700.00 | Window Closed / Lapsed |